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Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Aug. 25, 2018	Oct. 22, 2018	Feb. 10, 2018
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Aug. 25, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Trading Symbol	AZO
Entity Registrant Name	AUTOZONE INC
Entity Central Index Key	0000866787
Current Fiscal Year End Date	--08-25
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		25,559,353
Entity Public Float			$ 19,597,989,296

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Income Statement [Abstract]
Net sales	$ 11,221,077	$ 10,888,676	$ 10,635,676
Cost of sales, including warehouse and delivery expenses	5,247,331	5,149,056	5,026,940
Gross profit	5,973,746	5,739,620	5,608,736
Operating, selling, general and administrative expenses	4,162,890	3,659,551	3,548,341
Operating profit	1,810,856	2,080,069	2,060,395
Interest expense, net	174,527	154,580	147,681
Income before income taxes	1,636,329	1,925,489	1,912,714
Income tax expense	298,793	644,620	671,707
Net income	$ 1,337,536	$ 1,280,869	$ 1,241,007
Weighted average shares for basic earnings per share	26,970	28,430	29,889
Effect of dilutive stock equivalents	454	635	599
Weighted average shares for diluted earnings per share	27,424	29,065	30,488
Basic earnings per share	$ 49.59	$ 45.05	$ 41.52
Diluted earnings per share	$ 48.77	$ 44.07	$ 40.70

Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands

12 Months Ended

Aug. 25, 2018

Aug. 26, 2017

Aug. 27, 2016

Statement of Comprehensive Income [Abstract]

Net income

$ 1,337,536

$ 1,280,869

$ 1,241,007

Other comprehensive income (loss):

Pension liability adjustments, net of taxes

^[1]

72,376

16,514

(18,095)

Foreign currency translation adjustments

(53,085)

35,198

(39,524)

Unrealized (losses) gains on marketable securities, net of taxes

^[2]

(862)

(131)

146

Net derivative activity, net of taxes

^[3]

323

1,391

(538)

Total other comprehensive income (loss)

18,752

52,972

(58,011)

Comprehensive income

$ 1,356,288

$ 1,333,841

$ 1,182,996

[1]	Pension liability adjustments are presented net of taxes of $46,523 in 2018, which includes $13,122 related to the adoption of ASU 2018-02, $10,542 in 2017 and $11,394 in 2016.
[2]	Unrealized (losses) gains on marketable securities are presented net of taxes of $234 in 2018, $69 in 2017 and $79 in 2016
[3]	Net derivative activities are presented net of taxes of $1,882 in 2018, which includes $1,367 related to the adoption of ASU 2018-02, $814 in 2017 and $315 in 2016

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Pension liability adjustments, taxes	$ 46,523	$ 10,542	$ 11,394
Unrealized (losses) gains on marketable securities, taxes	234	69	79
Net derivative activities, taxes	1,882	$ 814	$ 315
Accounting Standards Update 2018-02 [Member]
Pension liability adjustments, taxes	13,122
Net derivative activities, taxes	$ 1,367

Consolidated Balance Sheets - USD ($) $ in Thousands	Aug. 25, 2018	Aug. 26, 2017
Current assets:
Cash and cash equivalents	$ 217,824	$ 293,270
Accounts receivable	258,136	280,733
Merchandise inventories	3,943,670	3,882,086
Other current assets	216,239	155,166
Total current assets	4,635,869	4,611,255
Property and equipment:
Land	1,107,092	1,056,187
Buildings and improvements	3,698,010	3,423,056
Equipment	1,841,330	1,704,653
Leasehold improvements	504,656	470,998
Construction in progress	140,535	218,299
Property and equipment	7,291,623	6,873,193
Less: Accumulated depreciation and amortization	3,073,223	2,842,175
Property and equipment, net	4,218,400	4,031,018
Goodwill	302,645	391,887
Deferred income taxes	34,620	35,308
Other long-term assets	155,446	190,313
Other long-term assets, total	492,711	617,508
Assets	9,346,980	9,259,781
Current liabilities:
Accounts payable	4,409,372	4,168,940
Accrued expenses and other	606,894	563,350
Income taxes payable	12,415	34,011
Total current liabilities	5,028,681	4,766,301
Long-term debt	5,005,930	5,081,238
Deferred income taxes	285,204	371,111
Other long-term liabilities	547,520	469,508
Commitments and contingencies
Stockholders' deficit:
Preferred stock, authorized 1,000 shares; no shares issued
Common stock, par value $.01 per share, authorized 200,000 shares; 27,530 shares issued and 25,742 shares outstanding in 2018 and 28,735 shares issued and 27,833 shares outstanding in 2017	275	287
Additional paid-in capital	1,155,426	1,086,671
Retained deficit	(1,208,824)	(1,642,387)
Accumulated other comprehensive loss	(235,805)	(254,557)
Treasury stock, at cost	(1,231,427)	(618,391)
Total stockholders' deficit	(1,520,355)	(1,428,377)
Liabilities and Stockholders' Deficit	$ 9,346,980	$ 9,259,781

Consolidated Balance Sheets (Parenthetical) - $ / shares	Aug. 25, 2018	Aug. 26, 2017
Statement of Financial Position [Abstract]
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	27,530,000	28,735,000
Common stock, shares outstanding	25,742,000	27,833,000

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Cash flows from operating activities:
Net income	$ 1,337,536	$ 1,280,869	$ 1,241,007
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property and equipment and intangibles	345,084	323,051	297,397
Amortization of debt origination fees	8,393	8,369	7,980
Deferred income taxes	(124,261)	74,902	45,019
Share-based compensation expense	43,674	38,244	39,825
Pension plan contributions	(11,596)	(17,761)	(52,721)
Pension termination charges	130,263
Asset impairment	193,162
Changes in operating assets and liabilities:
Accounts receivable	7,534	7,795	(41,447)
Merchandise inventories	(188,782)	(236,807)	(227,518)
Accounts payable and accrued expenses	319,609	82,614	271,198
Income taxes payable	(6,438)	(3,659)	50,122
Other, net	26,114	12,995	10,198
Net cash provided by operating activities	2,080,292	1,570,612	1,641,060
Cash flows from investing activities:
Capital expenditures	(521,788)	(553,832)	(488,791)
Purchase of intangibles			(10,000)
Proceeds from sale of assets	35,279
Purchase of marketable securities	(104,536)	(85,711)	(130,170)
Proceeds from sale of marketable securities	69,644	82,993	120,472
(Payments) proceeds from disposal of capital assets and other, net	(459)	2,951	2,654
Net cash used in investing activities	(521,860)	(553,599)	(505,835)
Cash flows from financing activities:
Net proceeds from (payments of) commercial paper	170,200	(42,400)	149,900
Proceeds from issuance of debt		600,000	650,000
Repayment of debt	(250,000)	(400,000)	(500,000)
Net proceeds from sale of common stock	89,715	54,686	80,289
Purchase of treasury stock	(1,592,013)	(1,071,649)	(1,452,462)
Payments of capital lease obligations	(49,004)	(47,604)	(36,320)
Other, net	(1,052)	(7,362)	(7,935)
Net cash used in financing activities	(1,632,154)	(914,329)	(1,116,528)
Effect of exchange rate changes on cash	(1,724)	852	(4,272)
Net (decrease) increase in cash and cash equivalents	(75,446)	103,536	14,425
Cash and cash equivalents at beginning of year	293,270	189,734	175,309
Cash and cash equivalents at end of year	217,824	293,270	189,734
Supplemental cash flow information:
Interest paid, net of interest cost capitalized	163,965	135,331	136,731
Income taxes paid	427,161	579,925	582,384
Assets acquired through capital lease	$ 98,782	$ 84,011	$ 94,052

Consolidated Statements of Stockholders' Deficit - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]
Balance at Aug. 29, 2015	$ (1,701,390)	$ 321	$ 938,355	$ (1,418,738)	$ (249,518)	$ (971,810)
Balance, Shares at Aug. 29, 2015		32,098
Net income	1,241,007			1,241,007
Total other comprehensive income (loss)	(58,011)				(58,011)
Purchase of treasury stock	(1,452,462)					(1,452,462)
Retirement of treasury shares		$ (21)	(67,023)	(1,424,455)		1,491,499
Retirement of treasury shares, shares		(2,132)
Issuance of common stock under stock options and stock purchase plans	80,289	$ 3	80,286
Issuance of common stock under stock options and stock purchase plans, Shares		363
Share-based compensation expense	39,298		39,298
Income tax benefit from exercise of stock options	63,731		63,731
Balance at Aug. 27, 2016	(1,787,538)	$ 303	1,054,647	(1,602,186)	(307,529)	(932,773)
Balance, shares at Aug. 27, 2016		30,329
Net income	1,280,869			1,280,869
Total other comprehensive income (loss)	52,972				52,972
Purchase of treasury stock	$ (1,071,649)					(1,071,649)
Retirement of treasury shares		$ (18)	(64,943)	(1,321,070)		1,386,031
Retirement of treasury shares, shares	(1,804)	(1,804)
Issuance of common stock under stock options and stock purchase plans	$ 54,686	$ 2	54,684
Issuance of common stock under stock options and stock purchase plans, Shares		210
Share-based compensation expense	42,283		42,283
Balance at Aug. 26, 2017	$ (1,428,377)	$ 287	1,086,671	(1,642,387)	(254,557)	(618,391)
Balance, shares at Aug. 26, 2017	28,735	28,735
Net income	$ 1,337,536			1,337,536
Total other comprehensive income (loss)	18,752				18,752
Purchase of treasury stock	$ (1,592,013)					(1,592,013)
Retirement of treasury shares		$ (15)	(60,500)	(918,462)		978,977
Retirement of treasury shares, shares	(1,512)	(1,512)
Issuance of common stock under stock options and stock purchase plans	$ 89,715	$ 3	89,712
Issuance of common stock under stock options and stock purchase plans, Shares		307
Adoption of ASU 2018-02	14,489			14,489
Share-based compensation expense	39,543		39,543
Balance at Aug. 25, 2018	$ (1,520,355)	$ 275	$ 1,155,426	$ (1,208,824)	$ (235,805)	$ (1,231,427)
Balance, shares at Aug. 25, 2018	27,530	27,530

Consolidated Statements of Stockholders' Deficit (Parenthetical) - shares shares in Thousands	12 Months Ended			248 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016	Aug. 25, 2018
Statement of Stockholders' Equity [Abstract]
Purchase of treasury stock, shares	2,398	1,495	1,903	144,700

Significant Accounting Policies

12 Months Ended

Aug. 25, 2018

Accounting Policies [Abstract]

Significant Accounting Policies

Note A – Significant Accounting Policies

Business: AutoZone, Inc. and its wholly owned subsidiaries (“AutoZone” or the “Company”) are principally a retailer and distributor of automotive replacement parts and accessories. At the end of fiscal 2018, the Company operated 5,618 stores in the United States, including Puerto Rico; 564 stores in Mexico; and 20 stores in Brazil. Each store carries an extensive product line for cars, sport utility vehicles, vans and light trucks, including new and remanufactured automotive hard parts, maintenance items, accessories and non-automotive products. At the end of fiscal 2018, 4,741 of the domestic stores had a commercial sales program that provides commercial credit and prompt delivery of parts and other products to local, regional and national repair garages, dealers, service stations and public sector accounts. The company also had commercial programs in stores in Mexico and Brazil. The Company also sells the ALLDATA brand automotive diagnostic and repair software through www.alldata.com and www.alldatadiy.com. Additionally, the Company sells automotive hard parts, maintenance items, accessories, and non-automotive products through www.autozone.com, and its commercial customers can make purchases through www.autozonepro.com. The Company does not derive revenue from automotive repair or installation services.

Fiscal Year: The Company’s fiscal year consists of 52 or 53 weeks ending on the last Saturday in August. Fiscal 2018, 2017 and 2016 represented 52 weeks.

Basis of Presentation: The Consolidated Financial Statements include the accounts of AutoZone, Inc. and its wholly owned subsidiaries. All significant intercompany transactions and balances have been eliminated in consolidation.

Use of Estimates: Management of the Company has made a number of estimates and assumptions relating to the reporting of assets and liabilities and the disclosure of contingent liabilities to prepare these financial statements. Actual results could differ from those estimates.

Cash and Cash Equivalents: Cash equivalents consist of investments with original maturities of 90 days or less at the date of purchase. Cash equivalents include proceeds due from credit and debit card transactions with settlement terms of less than five days. Credit and debit card receivables included within cash and cash equivalents were $51.0 million at August 25, 2018 and $48.3 million at August 26, 2017.

Cash balances are held in various locations around the world. Cash and cash equivalents of $98.8 million and $148.4 million were held outside of the U.S. as of August 25, 2018, and August 26, 2017, respectively, and were generally utilized to support liquidity needs in foreign operations.

Accounts Receivable: Accounts receivable consists of receivables from commercial customers and vendors, and is presented net of an allowance for uncollectible accounts. AutoZone routinely grants credit to certain of its commercial customers. The risk of credit loss in its trade receivables is substantially mitigated by the Company’s credit evaluation process, short collection terms and sales to a large number of customers, as well as the low dollar value per transaction for most of its sales. Allowances for potential credit losses are determined based on historical experience and current evaluation of the composition of accounts receivable. Historically, credit losses have been within management’s expectations and the balance of the allowance for uncollectible accounts was $6.1 million at August 25, 2018, and $5.9 million at August 26, 2017.

Merchandise Inventories: Inventories are stated at the lower of cost or market. Merchandise inventories include related purchasing, storage and handling costs. Inventory cost has been determined using the last-in, first-out (“LIFO”) method for domestic inventories and the weighted average cost method for Mexico and Brazil inventories. Due to price deflation on the Company’s merchandise purchases, the Company has exhausted its LIFO reserve balance. The Company’s policy is to not write up inventory in excess of replacement cost.

The difference between LIFO cost and replacement cost, which will be reduced upon experiencing price inflation on the Company’s merchandise purchases, was $452.4 million at August 25, 2018, and $414.9 million at August 26, 2017.

Marketable Securities: The Company invests a portion of its assets held by the Company’s wholly owned insurance captive in marketable debt securities and classifies them as available-for-sale. The Company includes these securities within the Other current assets and Other long-term assets captions in the accompanying Consolidated Balance Sheets and records the amounts at fair market value, which is determined using quoted market prices at the end of the reporting period. A discussion of marketable securities is included in “Note E – Fair Value Measurements” and “Note F – Marketable Securities.”

Property and Equipment: Property and equipment is stated at cost. Depreciation and amortization are computed principally using the straight-line method over the following estimated useful lives: buildings, 40 to 50 years; building improvements, 5 to 15 years; equipment, including software, 3 to 10 years; and leasehold improvements, over the shorter of the asset’s estimated useful life or the remaining lease term, which includes any reasonably assured renewal periods. Depreciation and amortization include amortization of assets under capital lease.

Impairment of Long-Lived Assets: The Company evaluates the recoverability of its long-lived assets whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. When such an event occurs, the Company compares the sum of the undiscounted expected future cash flows of the asset (asset group) with the carrying amounts of the asset. If the undiscounted expected future cash flows are less than the carrying value of the assets, the Company measures the amount of impairment loss as the amount by which the carrying amount of the assets exceeds the fair value of the assets.

Goodwill: The cost in excess of fair value of identifiable net assets of businesses acquired is recorded as goodwill. Goodwill has not been amortized since fiscal 2001, but an analysis is performed at least annually to compare the fair value of the reporting unit to the carrying amount to determine if any impairment exists. The Company performs its annual impairment assessment in the fourth quarter of each fiscal year, unless circumstances dictate more frequent assessments. Refer to “Note N – Goodwill and Intangibles” for additional disclosures regarding the Company’s goodwill and impairment assessment.

Intangible Assets: Intangible assets consist of customer relationships purchased relating to ALLDATA operations. Amortizing intangible assets are amortized over periods ranging from 3 to 10 years. Refer to “Note N – Goodwill and Intangibles” and “Note M – Sale of Assets” for additional disclosures regarding the Company’s intangible assets and impairment assessment.

Derivative Instruments and Hedging Activities: AutoZone is exposed to market risk from, among other things, changes in interest rates, foreign exchange rates and fuel prices. From time to time, the Company uses various derivative instruments to reduce such risks. To date, based upon the Company’s current level of foreign operations, no derivative instruments have been utilized to reduce foreign exchange rate risk. All of the Company’s hedging activities are governed by guidelines that are authorized by AutoZone’s Board of Directors (the “Board”). Further, the Company does not buy or sell derivative instruments for trading purposes.

AutoZone’s financial market risk results primarily from changes in interest rates. At times, AutoZone reduces its exposure to changes in interest rates by entering into various interest rate hedge instruments such as interest rate swap contracts, treasury lock agreements and forward-starting interest rate swaps. All of the Company’s interest rate hedge instruments are designated as cash flow hedges. Refer to “Note H – Derivative Financial Instruments” for additional disclosures regarding the Company’s derivative instruments and hedging activities. Cash flows related to these instruments designated as qualifying hedges are reflected in the accompanying Consolidated Statements of Cash Flows in the same categories as the cash flows from the items being hedged. Accordingly, cash flows relating to the settlement of interest rate derivatives hedging the forecasted issuance of debt have been reflected upon settlement as a component of financing cash flows. The resulting gain or loss from such settlement is deferred to Accumulated other comprehensive loss and reclassified to interest expense over the term of the underlying debt. This reclassification of the deferred gains and losses impacts the interest expense recognized on the underlying debt that was hedged and is therefore reflected as a component of operating cash flows in periods subsequent to settlement.

Foreign Currency: The Company accounts for its Mexican, Brazilian, Canadian, European, Chinese and British operations using the local market currency and converts its financial statements from these currencies to U.S. dollars. The cumulative loss on currency translation is recorded as a component of Accumulated other comprehensive loss (see “Note G – Accumulated Other Comprehensive Loss”).

Self-Insurance Reserves: The Company retains a significant portion of the risks associated with workers’ compensation, employee health, general, products liability, property and vehicle insurance. Through various methods, which include analyses of historical trends and utilization of actuaries, the Company estimates the costs of these risks. The costs are accrued based upon the aggregate of the liability for reported claims and an estimated liability for claims incurred but not reported. Estimates are based on calculations that consider historical lag and claim development factors. The long-term portions of these liabilities are recorded at the Company’s estimate of their net present value.

Deferred Rent: The Company recognizes rent expense on a straight-line basis over the course of the lease term, which includes any reasonably assured renewal periods, beginning on the date the Company takes physical possession of the property (see “Note O – Leases”). Differences between this calculated expense and cash payments are recorded as a liability within the Accrued expenses and other and Other long-term liabilities captions in the accompanying Consolidated Balance Sheets, based on the terms of the lease. Deferred rent approximated $139.6 million as of August 25, 2018, and $130.2 million as of August 26, 2017.

Financial Instruments: The Company has financial instruments, including cash and cash equivalents, accounts receivable, other current assets and accounts payable. The carrying amounts of these financial instruments approximate fair value because of their short maturities. A discussion of the carrying values and fair values of the Company’s debt is included in “Note I – Financing,” marketable securities is included in “Note F – Marketable Securities,” and derivatives is included in “Note H – Derivative Financial Instruments.”

Income Taxes: The Company accounts for income taxes under the liability method. Deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. Our effective tax rate is based on income by tax jurisdiction, statutory rates, and tax saving initiatives available to the Company in the various jurisdictions in which we operate.

The Company recognizes liabilities for uncertain income tax positions based on a two-step process. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step requires the Company to estimate and measure the tax benefit as the largest amount that is more than 50% likely to be realized upon ultimate settlement. It is inherently difficult and subjective to estimate such amounts, as the Company must determine the probability of various possible outcomes. The Company reevaluates these uncertain tax positions on a quarterly basis or when new information becomes available to management. These reevaluations are based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, successfully settled issues under audit, expirations due to statutes and new audit activity. Such a change in recognition or measurement could result in the recognition of a tax benefit or an increase to the tax accrual.

The Company classifies interest related to income tax liabilities, and if applicable, penalties, as a component of Income tax expense. The income tax liabilities and accrued interest and penalties that are expected to be payable within one year of the balance sheet date are presented within the Accrued expenses and other caption in the accompanying Consolidated Balance Sheets. The remaining portion of the income tax liabilities and accrued interest and penalties are presented within the Other long-term liabilities caption in the accompanying Consolidated Balance Sheets because payment of cash is not anticipated within one year of the balance sheet date. Refer to “Note D – Income Taxes” for additional disclosures regarding the Company’s income taxes.

Sales and Use Taxes: Governmental authorities assess sales and use taxes on the sale of goods and services. The Company excludes taxes collected from customers in its reported sales results; such amounts are included within the Accrued expenses and other caption until remitted to the taxing authorities.

Dividends: The Company currently does not pay a dividend on its common stock. The ability to pay dividends is subject to limitations imposed by Nevada law. Under Nevada law, any future payment of dividends would be dependent upon the Company’s financial condition, capital requirements, earnings and cash flow.

Revenue Recognition: The Company recognizes sales at the time the sale is made and the product is delivered to the customer. Revenue from sales are presented net of allowances for estimated sales returns, which are based on historical return rates.

A portion of the Company’s transactions include the sale of auto parts that contain a core component. The core component represents the recyclable portion of the auto part. Customers are not charged for the core component of the new part if a used core is returned at the point of sale of the new part; otherwise the Company charges customers a specified amount for the core component. The Company refunds that same amount upon the customer returning a used core to the store at a later date. The Company does not recognize sales or cost of sales for the core component of these transactions when a used part is returned or expected to be returned from the customer.

Vendor Allowances and Advertising Costs: The Company receives various payments and allowances from its vendors through a variety of programs and arrangements. Monies received from vendors include rebates, allowances and promotional funds. The amounts to be received are subject to the terms of the vendor agreements, which generally do not state an expiration date, but are subject to ongoing negotiations that may be impacted in the future based on changes in market conditions, vendor marketing strategies and changes in the profitability or sell-through of the related merchandise.

Rebates and other miscellaneous incentives are earned based on purchases or product sales and are accrued ratably over the purchase or sale of the related product. These monies are generally recorded as a reduction of merchandise inventories and are recognized as a reduction to cost of sales as the related inventories are sold.

For arrangements that provide for reimbursement of specific, incremental, identifiable costs incurred by the Company in selling the vendors’ products, the vendor funds are recorded as a reduction to Operating, selling, general and administrative expenses in the period in which the specific costs were incurred.

The Company expenses advertising costs as incurred. Advertising expense, net of vendor promotional funds, was $95.2 million in fiscal 2018, $93.1 million in fiscal 2017, and $98.3 million in fiscal 2016. Vendor promotional funds, which reduced advertising expense, amounted to $25.3 million in fiscal 2018, $28.3 million in fiscal 2017, and $21.4 million in fiscal 2016.

Cost of Sales and Operating, Selling, General and Administrative Expenses: The following illustrates the primary costs classified in each major expense category:

Cost of Sales

•

Total cost of merchandise sold, including:

•

Freight expenses associated with moving merchandise inventories from the Company’s vendors to the distribution centers;

•

Vendor allowances that are not reimbursements for specific, incremental and identifiable costs

•

Costs associated with operating the Company’s supply chain, including payroll and benefit costs, warehouse occupancy costs, transportation costs and depreciation; and

•

Inventory shrinkage

Operating, Selling, General and Administrative Expenses

•

Payroll and benefit costs for store, field leadership and store support employees;

•

Occupancy costs of store and store support facilities;

•

Depreciation and amortization related to store and store support assets;

•

Transportation costs associated with field leadership, commercial sales force and hub deliveries;

•

Advertising;

•

Self insurance costs; and

•

Other administrative costs, such as credit card transaction fees, legal costs, supplies, and travel and lodging

Warranty Costs: The Company or the vendors supplying its products provides the Company’s customers limited warranties on certain products that range from 30 days to lifetime. In most cases, the Company’s vendors are primarily responsible for warranty claims. Warranty costs relating to merchandise sold under warranty not covered by vendors are estimated and recorded as warranty obligations at the time of sale based on each product’s historical return rate. These obligations, which are often funded by vendor allowances, are recorded within the Accrued expenses and other caption in the Consolidated Balance Sheets. For vendor allowances that are in excess of the related estimated warranty expense for the vendor’s products, the excess is recorded in inventory and recognized as a reduction to cost of sales as the related inventory is sold.

Shipping and Handling Costs: The Company does not generally charge customers separately for shipping and handling. Substantially all the costs the Company incurs to ship products to our stores are included in cost of sales.

Pre-opening Expenses: Pre-opening expenses, which consist primarily of payroll and occupancy costs, are expensed as incurred.

Earnings per Share: Basic earnings per share is based on the weighted average outstanding common shares. Diluted earnings per share is based on the weighted average outstanding common shares adjusted for the effect of common stock equivalents, which are primarily stock options. There were 847,279 stock options excluded from the diluted earnings per share calculation because they would have been anti-dilutive as of August 25, 2018. There were 620,025 stock options excluded for the year ended August 26, 2017, and 329,900 stock options excluded for the year ended August 27, 2016, because they would have been anti-dilutive.

Share-Based Payments: Share-based payments include stock option grants and certain other transactions under the Company’s stock plans. The Company recognizes compensation expense for its share-based payments over the requisite service period based on the fair value of the awards. See “Note B – Share-Based Payments” for further discussion.

Risk and Uncertainties: In fiscal 2018, one class of similar products accounted for approximately 12 percent of the Company’s total revenues, and one vendor supplied approximately 12 percent of the Company’s total purchases. No other class of similar products accounted for 10 percent or more of total revenues, and no other individual vendor provided more than 10 percent of total purchases.

Recently Adopted Accounting Pronouncements:

In March 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) No. 2018-05, Income Taxes (Topic 740) - Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118. ASU 2018-05 provides guidance on accounting for the tax effects of the U.S. Tax Cuts and Jobs Act (“Tax Reform”) pursuant to the Staff Accounting Bulletin No. 118, which allows companies to complete the accounting under Accounting Standard Codificiation (“ASC”) 740 within a one-year measurement period from Tax Reform enactment date, which occurred for the purposes of the Company’s financial statements during the quarter ended February 10, 2018, when the necessary information is not available, prepared, or analyzed in sufficient detail to complete the accounting. The Company has applied this amendment. Refer to “Note D – Income Taxes” in the Consolidated Financial Statements for more information.

In February 2018, the FASB issued ASU 2018-02, Income Statement - Reporting Comprehensive Income: Reclassification of Certain Tax effects from Accumulated Other Comprehensive Income, which allows for the reclassification from accumulated other comprehensive income (“AOCI”) to retained earnings for the tax effects on deferred tax items included within AOCI (referred to in the ASU as “stranded tax effects”) resulting from the reduction of the U.S. federal statutory income tax rate to 21% from 35% that was effected by the 2017 U.S. Tax Cuts and Jobs Act (the “2017 Tax Act”). ASU 2018-02 is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, with early adoption permitted. The Company early adopted ASU 2018-02 in the fourth quarter of fiscal 2018, resulting in a $14.5 million reclassification from accumulated other comprehensive income to retained deficit on the Consolidated Balance Sheets and a decrease in the Consolidated Statement of Comprehensive Income.

Recently Issued Accounting Pronouncements:

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers. This ASU, along with subsequent ASU’s issued to clarify certain provisions of ASU 2014-09, is a comprehensive new revenue recognition model that expands disclosure requirements and requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. It also requires more detailed disclosures to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. Companies that transition to this new standard may either retrospectively restate each prior reporting period or reflect the cumulative effect of initially applying the updates with an adjustment to retained earnings at the date of adoption. The Company will adopt this standard using the modified retrospective method beginning with our first quarter ending November 17, 2018. Results for annual reporting periods beginning after August 25, 2018, will be presented under ASU 2014-09, while prior period amounts will not be adjusted and will continue to be reported under the accounting standards in effect for the prior periods. The Company’s primary source of revenue is derived from the sale of automotive aftermarket parts to our customers, and generally, these performance obligations are satisfied the same day contracts with customers are initiated. As such, the adoption of the new standard will not have a material impact on the Company’s consolidated financial condition, results of operations, cash flows, business process, controls or systems.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). ASU 2016-02 requires an entity to recognize a right-of-use asset and lease liability for all leases with terms greater than 12 months. Recognition, measurement and presentation of expenses will depend on classification as a finance or operating lease. The amendments also require certain quantitative and qualitative disclosures about leasing arrangements. Early adoption is permitted. The Company will adopt this standard using the required modified retrospective approach at the beginning of fiscal 2020. The Company established a cross-functional implementation team to evaluate and identify the impact of ASU 2016-02 on the Company’s financial position, results of operations and cash flows. Based on the preliminary work completed, the Company has concluded its assessment on its leasing arrangements, evaluated the impact of applying the practical expedients and accounting policy elections and is currently working on implementing software to meet the reporting requirements of this standard. The Company is also in the process of identifying changes to its business processes and controls to support adoption of the new standard. The team is continuing to understand the full analysis of the adoption, but is unable to quantify the impact at this time. The Company anticipates the adoption of this new standard to result in a significant increase in lease-related assets and liabilities on the Company’s consolidated balance sheets. The impact on the Company’s Consolidated Statements of Income is currently being evaluated. As the impact of this standard is non-cash in nature, the Company does not anticipate its adoption to have an impact on the Company’s Consolidated Statement of Cash Flows.

In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory. ASU 2016-16 requires that an entity recognize the income tax consequences of an intra-entity transfer of assets other than inventory when the transfer occurs. The guidance must be applied using the modified retrospective basis. The Company does not expect the provisions of ASU 2016-16 to have a material impact on its financial statements. This update will be effective for the Company at the beginning of its fiscal 2019 year.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. ASU 2017-01 provides guidance to assist entities in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The updated guidance requires a prospective adoption. Early adoption is permitted. The Company does not expect the provisions of ASU 2017-01 to have a material impact on its Consolidated Financial Statements. This update will be effective for the Company at the beginning of its fiscal 2019 year.

Share-Based Payments

12 Months Ended

Aug. 25, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Payments

Note B – Share-Based Payments

Total share-based compensation expense (a component of Operating, selling, general and administrative expenses) was $43.7 million for fiscal 2018, $38.2 million for fiscal 2017, and $39.8 million for fiscal 2016. As of August 25, 2018, share-based compensation expense for unvested awards not yet recognized in earnings is $33.1 million and will be recognized over a weighted average period of 1.82 years. As a result of the adoption of the new accounting guidance for share-based payments in 2017, cash flows related to tax deductions in excess of recognized compensation cost are classified as operating cash flows for each period presented. Retrospective application of the cash flow presentation resulted in increases to both net cash provided by operations and net cash required for financing activities of $63.7 million for fiscal 2016.

On December 15, 2010, the Company’s stockholders approved the 2011 Equity Incentive Award Plan (the “2011 Plan”), allowing the Company to provide equity-based compensation to non-employee directors and employees for their service to AutoZone or its subsidiaries or affiliates. Prior to the Company’s adoption of the 2011 Plan, equity-based compensation was provided to employees under the 2006 Stock Option Plan and to non-employee directors under the 2003 Director Compensation Plan (the “2003 Comp Plan”) and the 2003 Director Stock Option Plan (the “2003 Option Plan”).

During fiscal 2016, the Company’s stockholders approved the Amended and Restated AutoZone, Inc. 2011 Equity Incentive Award Plan (the “Amended 2011 Equity Plan”). The Amended 2011 Equity Plan imposes a maximum limit on the compensation, measured as the sum of any cash compensation and the aggregate grant date fair value of awards granted under the Amended 2011 Equity Plan, which may be paid to non-employee directors for such service during any calendar year. The Amended 2011 Equity Plan also applies a ten-year term on the Amended 2011 Equity Plan through December 16, 2025 and extends the Company’s ability to grant incentive stock options through October 7, 2025.

The Company grants options to purchase common stock to certain of its employees under its plan at prices equal to the market value of the stock on the date of grant. Options have a term of 10 years or 10 years and one day from grant date. Employee options generally vest in equal annual installments on the first, second, third and fourth anniversaries of the grant date and generally have 30 or 90 days after the service relationship ends, or one year after death, to exercise all vested options. The fair value of each option grant is separately estimated for each vesting date. The fair value of each option is amortized into compensation expense on a straight-line basis between the grant date for the award and each vesting date.

In addition to the 2011 Plan, on December 15, 2010, the Company adopted the 2011 Director Compensation Program (the “2011 Program”), which stated that non-employee directors would receive their compensation in awards of restricted stock units under the 2011 Plan. Under the 2011 Program, restricted stock units are granted the first day of each calendar quarter. The number of restricted stock units granted each quarter is determined by dividing one-fourth of the amount of the annual retainer by the fair market value of the shares of common stock as of the grant date. The restricted stock units are fully vested on the date they are issued and are paid in shares of the Company’s common stock subsequent to the non-employee director ceasing to be a member of the Board.

The 2011 Program replaced the 2003 Comp Plan and the 2003 Option Plan. Under the 2003 Comp Plan, non-employee directors could receive no more than one-half of their director fees immediately in cash, and the remainder of the fees was required to be taken in common stock or stock appreciation rights. The director had the option to elect to receive up to 100% of the fees in stock or defer all or part of the fees in units with value equivalent to the value of shares of common stock as of the grant date. At August 25, 2018, the Company had $13.6 million accrued related to 17,710 outstanding units issued under the 2003 Comp Plan and prior plans, and there was $9.5 million accrued related to 17,990 outstanding units issued as of August 26, 2017. No additional shares of stock or units will be issued in future years under the 2003 Comp Plan.

Under the 2003 Option Plan, each non-employee director received an option grant on January 1 of each year, and each new non-employee director received an option to purchase 3,000 shares upon election to the Board, plus a portion of the annual directors’ option grant prorated for the portion of the year actually served. These stock option grants were made at the fair market value as of the grant date and generally vested three years from the grant date. There were 13,000 and 19,000 outstanding options under the 2003 Option Plan as of August 25, 2018 and August 26, 2017, respectively. No additional shares of stock will be issued in future years under the 2003 Option Plan.

During fiscal 2014, the Company adopted the 2014 Director Compensation Program (the “Program”), which states that non-employee directors will receive their compensation in awards of restricted stock units under the 2011 Equity Incentive Award Plan, with an option for a certain portion of a director’s compensation to be paid in cash at the non-employee director’s election. The Program replaced the 2011 Director Compensation Program. Under the Program, restricted stock units are granted January 1 of each year (the “Grant Date”). The number of restricted stock units is determined by dividing the amount of the annual retainer by the fair market value of the shares of common stock as of the Grant Date. The restricted stock units are fully vested on January 1 of each year and are paid in shares of the Company’s common stock on the fifth anniversary of the Grant Date or the date the non-employee director ceases to be a member of the Board (“Separation from Service”), whichever occurs first. Non-employee directors may elect to defer receipt of the restricted stock units until their Separation from Service. The cash portion of the award, if elected, is paid ratably over the remaining calendar quarters.

The Company has estimated the fair value of all stock option awards as of the date of the grant by applying the Black-Scholes-Merton multiple-option pricing valuation model. The application of this valuation model involves assumptions that are judgmental and highly sensitive in the determination of compensation expense. The following table presents the weighted average for key assumptions used in determining the fair value of options granted and the related share-based compensation expense:


	Year Ended
	August 25, 2018			August 26, 2017			August 27, 2016
Expected price volatility		20	%		18	%		18	%
Risk-free interest rates		1.9	%		1.2	%		1.5	%
Weighted average expected lives (in years)		5.1			5.1			5.1
Forfeiture rate		10	%		10	%		10	%
Dividend yield		0	%		0	%		0	%

The following methodologies were applied in developing the assumptions used in determining the fair value of options granted:

Expected price volatility – This is a measure of the amount by which a price has fluctuated or is expected to fluctuate. The Company uses actual historical changes in the market value of its stock to calculate the volatility assumption as it is management’s belief that this is the best indicator of future volatility. The Company calculates daily market value changes from the date of grant over a past period representative of the expected life of the options to determine volatility. An increase in the expected volatility will increase compensation expense.

Risk-free interest rate – This is the U.S. Treasury rate for the week of the grant having a term equal to the expected life of the option. An increase in the risk-free interest rate will increase compensation expense.

Expected lives – This is the period of time over which the options granted are expected to remain outstanding and is based on historical experience. Separate groups of employees that have similar historical exercise behavior are considered separately for valuation purposes. Options granted have a maximum term of ten years or ten years and one day. An increase in the expected life will increase compensation expense.

Forfeiture rate – This is the estimated percentage of options granted that are expected to be forfeited or canceled before becoming fully vested. This estimate is based on historical experience at the time of valuation and reduces expense ratably over the vesting period. An increase in the forfeiture rate will decrease compensation expense. This estimate is evaluated periodically based on the extent to which actual forfeitures differ, or are expected to differ, from the previous estimate.

Dividend yield – The Company has not made any dividend payments nor does it have plans to pay dividends in the foreseeable future. An increase in the dividend yield will decrease compensation expense.

The weighted average grant date fair value per share of options granted was $129.12 during fiscal 2018, $139.80 during fiscal 2017, and $156.20 during fiscal 2016. The intrinsic value of options exercised was $123.1 million in fiscal 2018, $93.9 million in fiscal 2017, and $178.0 million in fiscal 2016. The total fair value of options vested was $35.7 million in fiscal 2018, $34.7 million in fiscal 2017, and $32.2 million in fiscal 2016.

The Company generally issues new shares when options are exercised. The following table summarizes information about stock option activity for the year ended August 25, 2018:


	Number of Shares			Weighted Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)
Outstanding – August 26, 2017		1,798,055		$	493.18
Granted		284,335			587.57
Exercised		(297,616	)		298.02
Cancelled		(77,908	)		672.61

Outstanding – August 25, 2018		1,706,866			534.74		6.06	$	402,631

Exercisable		1,014,819			446.07		4.73		329,352

Expected to vest		622,842			664.77		8.02		38,387

Available for future grants		686,577

The Company recognized $2.1 million in expense related to the discount on the selling of shares to employees and executives under various share purchase plans in fiscal 2018, $1.8 million in fiscal 2017 and $2.0 million in fiscal 2016. The Sixth Amended and Restated AutoZone, Inc. Employee Stock Purchase Plan (the “Employee Plan”), which is qualified under Section 423 of the Internal Revenue Code, permits all eligible employees to purchase AutoZone’s common stock at 85% of the lower of the market price of the common stock on the first day or last day of each calendar quarter through payroll deductions. Maximum permitted annual purchases are $15,000 per employee or 10 percent of compensation, whichever is less. Under the Employee Plan, 14,523 shares were sold to employees in fiscal 2018, 14,205 shares were sold to employees in fiscal 2017, and 12,662 shares were sold to employees in fiscal 2016. The Company repurchased 11,816 shares at market value in fiscal 2018, 12,455 shares in fiscal 2017 and 12,460 shares in fiscal 2016 from employees electing to sell their stock. Issuances of shares under the Employee Plan are netted against repurchases and such repurchases are not included in share repurchases disclosed in “Note K – Stock Repurchase Program.” At August 25, 2018, 163,777 shares of common stock were reserved for future issuance under the Employee Plan.

Once executives have reached the maximum purchases under the Employee Plan, the Fifth Amended and Restated Executive Stock Purchase Plan (the “Executive Plan”) permits all eligible executives to purchase AutoZone’s common stock up to 25 percent of his or her annual salary and bonus. Purchases under the Executive Plan were 1,840 shares in fiscal 2018, 1,865 shares in fiscal 2017 and 1,943 shares in fiscal 2016. At August 25, 2018, 238,048 shares of common stock were reserved for future issuance under the Executive Plan.

Accrued Expenses and Other

12 Months Ended

Aug. 25, 2018

Payables and Accruals [Abstract]

Accrued Expenses and Other

Note C – Accrued Expenses and Other

Accrued expenses and other consisted of the following:


(in thousands)	August 25, 2018		August 26, 2017
Accrued compensation, related payroll taxes and benefits	$	195,004	$	181,591
Property, sales, and other taxes		106,050		98,829
Medical and casualty insurance claims (current portion)		88,761		84,756
Capital lease obligations		52,290		48,134
Accrued interest		36,902		41,047
Accrued gift cards		27,401		24,192
Accrued sales and warranty returns		20,025		19,520
Other		80,461		65,281

	$	606,894	$	563,350

The Company retains a significant portion of the insurance risks associated with workers’ compensation, employee health, general, products liability, property and vehicle insurance. A portion of these self-insured losses is managed through a wholly owned insurance captive. The Company maintains certain levels for stop-loss coverage for each self-insured plan in order to limit its liability for large claims. The retained limits are per claim and are $2.0 million for workers’ compensation, $3.0 million for vehicles, $21.5 million for property, $0.7 million for employee health, and $1.0 million for general and products liability.

Income Taxes

12 Months Ended

Aug. 25, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Note D – Income Taxes

The components of income from continuing operations before income taxes are as follows:


	Year Ended
(in thousands)	August 25, 2018		August 26, 2017		August 27, 2016
Domestic	$	1,412,963	$	1,737,401	$	1,737,727
International		223,366		188,088		174,987

	$	1,636,329	$	1,925,489	$	1,912,714

The provision for income tax expense consisted of the following:


	Year Ended
(in thousands)	August 25, 2018			August 26, 2017			August 27, 2016
Current:
Federal	$	328,963		$	487,492		$	534,621
State		36,389			31,733			39,223
International		57,702			50,493			52,844

		423,054			569,718			626,688
Deferred:
Federal		(131,926	)		72,208			48,509
State		8,167			7,769			9,453
International		(502	)		(5,075	)		(12,943	)

		(124,261	)		74,902			45,019

Income tax expense	$	298,793		$	644,620		$	671,707

A reconciliation of the provision for income taxes to the amount computed by applying the federal statutory tax rate to income before income taxes is as follows:


	Year Ended
(in thousands)	August 25, 2018			August 26, 2017			August 27, 2016
Federal tax at statutory U.S. income tax rate		25.9	%		35.0	%		35.0	%
State income taxes, net		1.9	%		1.3	%		1.6	%
Transition tax		1.6	%		—			—
Share-based compensation		(1.6	%)		(1.4	%)		—
Impact of tax reform		(9.6	%)		—			—
Other		0.1	%		(1.4	%)		(1.5	%)

Effective tax rate		18.3	%		33.5	%		35.1	%

On December 22, 2017, the Tax Cuts and Jobs Act (“Tax Reform”) was enacted into law. Tax Reform significantly revises the U.S. federal corporate income tax by, among other things, lowering the statutory federal corporate rate from 35% to 21%, eliminating certain deductions, imposing a mandatory one-time transition tax on accumulated earnings of foreign subsidiaries, and changing how foreign earnings are subject to U.S. federal tax.

As a result of the decrease in the federal tax rate from 35% to 21%, effective January 1, 2018, the Company has computed its income tax expense for the year ended August 25, 2018 using a blended federal tax rate of 25.9%, which provided a benefit of $119.2 million on fiscal 2018 earnings before taxes. The Company’s federal statutory tax rate will be 21% for the year ending August 31, 2019 and each subsequent year.

For the year ended August 25, 2018 and August 26, 2017, the Company recognized excess tax benefits from stock option exercises of $31.3 million and $31.2 million, respectively.

The SEC staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to address the application of GAAP in situations where a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of Tax Reform. To the extent that a company’s accounting for certain income tax effects of Tax Reform is incomplete but it is able to determine a reasonable estimate, it must record a provisional estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial statements, it should continue to apply ASC 740 on the basis of the provisions of the tax laws that were in effect immediately before the enactment of Tax Reform. The ultimate impact may differ from provisional amounts recorded, possibly materially, due to, among other things, additional analysis, changes in interpretations and assumptions the Company has made, and additional regulatory guidance that may be issued. The accounting must be completed within one year from the enactment date of Tax Reform.

As a result of the statutory rate changes of Tax Reform, the Company must remeasure its deferred tax assets and liabilities using the federal tax rate that will apply when the related temporary differences are expected to reverse. During the year ended August 25, 2018, the Company recorded a provisional tax benefit of $157.3 million related to the remeasurement of deferred taxes as a result of Tax Reform. The Company is continuing to analyze certain aspects of Tax Reform and is refining its calculations which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts.

As part of the transition to the new territorial tax system, Tax Reform imposes a one-time transition tax on deemed repatriation of historical earnings of foreign subsidiaries. For the year ended August 25, 2018, the Company recorded a provisional tax expense of $25.8 million related to the transition tax. Our analysis of the transition tax is not completed as of the year ended August 25, 2018, as the Company continues to finalize the calculation of foreign earnings and profits and the amounts held in cash or other specified assets. The provisional amount may also change as new guidance and clarifications are issued by the US federal and state jurisdictions. The Company will complete the accounting for these items during the measurement period. The Company intends to file an election to pay the transition tax liability over the following eight years as prescribed under the enacted law.

The other provisions of Tax Reform are either immaterial or not applicable for the year ended August 25, 2018. The provisions applicable for the year ended August 25, 2018, including the deductibility of certain expenditures, are provisional amounts that may also change as new guidance and clarifications are issued.

Significant components of the Company’s deferred tax assets and liabilities were as follows:


(in thousands)	August 25, 2018			August 26, 2017
Deferred tax assets:
Net operating loss and credit carryforwards	$	47,190		$	48,062
Accrued benefits		62,867			96,664
Other		46,375			56,052

Total deferred tax assets		156,432			200,778
Less: Valuation allowances		(19,619	)		(13,501	)

Net deferred tax assets		136,813			187,277
Deferred tax liabilities:
Property and equipment		(101,049	)		(117,580	)
Inventory		(242,138	)		(333,422	)
Prepaid expenses		(42,019	)		(60,920	)
Other		(2,191	)		(11,158	)

Total deferred tax liabilities		(387,397	)		(523,080	)

Net deferred tax liabilities	$	(250,584	)	$	(335,803	)

The Company has historically asserted its intention to indefinitely reinvest foreign current and accumulated earnings and other basis differences in certain foreign subsidiaries. During the year ended August 25, 2018, the Company has reevaluated its assertion as a result of the enactment of Tax Reform and, with few exceptions, no longer considers the current and accumulated earnings to be indefinitely reinvested in our foreign subsidiaries. Where necessary, withholding tax provisions resulting from foreign distributions of current and accumulated earnings have been considered in the Company’s provision for income taxes.

The Company maintains its assertion related to other basis differences in foreign subsidiaries. It is impracticable for the Company to determine the amount of unrecognized deferred tax liability on these indefinitely reinvested basis differences.

At August 25, 2018 and August 26, 2017, the Company had deferred tax assets of $30.9 million and $30.8 million, respectively, from net operating loss (“NOL”) carryforwards available to reduce future taxable income totaling approximately $219.1 million and $198.2 million, respectively. Certain NOLs have no expiration date and others will expire, if not utilized, in various years from fiscal 2019 through 2038. At August 25, 2018 and August 26, 2017, the Company had deferred tax assets for income tax credit carryforwards of $16.3 million and $17.2 million, respectively. Income tax credit carryforwards will expire, if not utilized, in various years from fiscal 2023 through 2028.

At August 25, 2018 and August 26, 2017, the Company had a valuation allowance of $19.6 million and $13.5 million, respectively, on deferred tax assets associated with NOL and tax credit carryforwards for which management has determined it is more likely than not that the deferred tax asset will not be realized. Management believes it is more likely than not that the remaining deferred tax assets will be fully realized.

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:


(in thousands)	August 25, 2018			August 26, 2017
Beginning balance	$	22,201		$	27,726
Additions based on tax positions related to the current year		8,184			7,089
Additions for tax positions of prior years		1,404			278
Reductions for tax positions of prior years		(482	)		(6,954	)
Reductions due to settlements		(1,930	)		(1,964	)
Reductions due to statute of limitations		(3,300	)		(3,974	)

Ending balance	$	26,077		$	22,201

Included in the August 25, 2018 and the August 26, 2017 balances are $13.5 million and $9.9 million, respectively, of unrecognized tax benefits that, if recognized, would reduce the Company’s effective tax rate.

The Company accrues interest on unrecognized tax benefits as a component of income tax expense. Penalties, if incurred, would be recognized as a component of income tax expense. The Company had $0.7 million and $1.2 million accrued for the payment of interest and penalties associated with unrecognized tax benefits at August 25, 2018 and August 26, 2017, respectively.

The Company files U.S. federal, U.S. state and local, and international income tax returns. With few exceptions, the Company is no longer subject to U.S. federal, U.S. state and local, or Non-U.S. examinations by tax authorities for fiscal year 2013 and prior. The Company is typically engaged in various tax examinations at any given time by U.S. federal, U.S. state and local, and Non-U.S. taxing jurisdictions. As of August 25, 2018, the Company estimates that the amount of unrecognized tax benefits could be reduced by approximately $1.1 million over the next twelve months as a result of tax audit settlements. While the Company believes that it is adequately accrued for possible audit adjustments, the final resolution of these examinations cannot be determined at this time and could result in final settlements that differ from current estimates.

Fair Value Measurements

12 Months Ended

Aug. 25, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note E – Fair Value Measurements

The Company defines fair value as the price received to transfer an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In accordance with ASC 820, Fair Value Measurements and Disclosures, the Company uses the fair value hierarchy, which prioritizes the inputs used to measure fair value. The hierarchy, as defined below, gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The three levels of the fair value hierarchy are set forth below:

Level 1 inputs — unadjusted quoted prices in active markets for identical assets or liabilities that the Company can access at the measurement date.

Level 2 inputs — inputs other than quoted market prices included within Level 1 that are observable, either directly or indirectly, for the asset or liability.

Level 3 inputs — unobservable inputs for the asset or liability, which are based on the Company’s own assumptions as there is little, if any, observable activity in identical assets or liabilities.

Financial Assets & Liabilities Measured at Fair Value on a Recurring Basis

The Company’s assets and liabilities measured at fair value on a recurring basis were as follows:


	August 25, 2018
(in thousands)	Level 1		Level 2		Level 3		Fair Value
Other current assets	$	55,711	$	3,733	$	—	$	59,444
Other long-term assets		58,973		16,259		—		75,232

	$	114,684	$	19,992	$	—	$	134,676


	August 26, 2017
(in thousands)	Level 1		Level 2		Level 3		Fair Value
Other current assets	$	18,453	$	120	$	—	$	18,573
Other long-term assets		53,319		28,981		—		82,300

	$	71,772	$	29,101	$	—	$	100,873

At August 25, 2018, the fair value measurement amounts for assets and liabilities recorded in the accompanying Consolidated Balance Sheet consisted of short-term marketable securities of $59.4 million, which are included within Other current assets and long-term marketable securities of $75.2 million, which are included in Other long-term assets. The Company’s marketable securities are typically valued at the closing price in the principal active market as of the last business day of the quarter or through the use of other market inputs relating to the securities, including benchmark yields and reported trades.

A discussion on how the Company’s cash flow hedges are valued is included in “Note H – Derivative Financial Instruments,” while the fair value of the Company’s pension plan assets are disclosed in “Note L – Pension and Savings Plans.”

Non-Financial Assets Measured at Fair Value on a Non-Recurring Basis

Certain non-financial assets and liabilities are required to be measured at fair value on a non-recurring basis in certain circumstances, including the event of impairment. These non-financial assets and liabilities could include assets and liabilities acquired in an acquisition as well as goodwill, intangible assets and property, plant and equipment that are determined to be impaired. At August 25, 2018, the Company did not have any other significant non-financial assets or liabilities that had been measured at fair value on a non-recurring basis subsequent to initial recognition.

Financial Instruments not Recognized at Fair Value

The Company has financial instruments, including cash and cash equivalents, accounts receivable, other current assets and accounts payable. The carrying amounts of these financial instruments approximate fair value because of their short maturities. A discussion of the carrying values and fair values of the Company’s debt is included in “Note I – Financing.”

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Marketable Securities

12 Months Ended

Aug. 25, 2018

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

Note F – Marketable Securities

The Company’s basis for determining the cost of a security sold is the “Specific Identification Model.” Unrealized gains (losses) on marketable securities are recorded in Accumulated other comprehensive loss. The Company’s available-for-sale marketable securities consisted of the following:


	August 25, 2018
(in thousands)	Amortized Cost Basis		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Corporate securities	$	50,306	$	—	$	(684	)	$	49,622
Government bonds		28,777		—		(173	)		28,604
Mortgage-backed securities		3,248		—		(90	)		3,158
Asset-backed securities and other		53,445		—		(153	)		53,292

	$	135,776	$	—	$	(1,100	)	$	134,676


	August 26, 2017
(in thousands)	Amortized Cost Basis		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Corporate securities	$	39,917	$	73	$	(13	)	$	39,977
Government bonds		31,076		49		(74	)		31,051
Mortgage-backed securities		4,850		2		(42	)		4,810
Asset-backed securities and other		25,042		28		(35	)		25,035

	$	100,885	$	152	$	(164	)	$	100,873

The debt securities held at August 25, 2018, had effective maturities ranging from less than one year to approximately three years. The Company did not realize any material gains or losses on its marketable securities during fiscal 2018, 2017 or 2016.

The Company holds 121 securities that are in an unrealized loss position of approximately $1.1 million at August 25, 2018. The Company has the intent and ability to hold these investments until recovery of fair value or maturity, and does not deem the investments to be impaired on an other than temporary basis. In evaluating whether the securities are deemed to be impaired on an other than temporary basis, the Company considers factors such as the duration and severity of the loss position, the credit worthiness of the investee, the term to maturity and its intent and ability to hold the investments until maturity or until recovery of fair value.

Included above in total marketable securities are $85.6 million and $85.4 million of marketable securities transferred by the Company’s insurance captive to a trust account to secure its obligations to an insurance company related to future workers’ compensation and casualty losses as of August 25, 2018 and August 26, 2017, respectively.

Accumulated Other Comprehensive Loss

12 Months Ended

Aug. 25, 2018

Equity [Abstract]

Accumulated Other Comprehensive Loss

Note G – Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss includes certain adjustments to pension liabilities, foreign currency translation adjustments, certain activity for interest rate swaps and treasury rate locks that qualify as cash flow hedges and unrealized gains (losses) on available-for-sale securities. Changes in Accumulated other comprehensive loss consisted of the following:


(in thousands)	Pension Liability			Foreign Currency⁽⁴⁾			Net Unrealized Gain (Loss) on Securities			Derivatives			Total
Balance at August 27, 2016	$	(88,890	)	$	(211,012	)	$	120		$	(7,747	)	$	(307,529	)
Other comprehensive income (loss) before reclassifications		8,046			35,198			(60	)		—			43,184
Amounts reclassified from Accumulated other comprehensive loss⁽¹⁾		8,468	⁽³⁾		—			(71	)⁽⁵⁾		1,391	⁽⁶⁾		9,788

Balance at August 26, 2017		(72,376	)		(175,814	)		(11	)		(6,356	)		(254,557	)
Other comprehensive income (loss) before reclassifications		77,774			(53,085	)		(800	)		—			23,889
Amounts reclassified from Accumulated other comprehensive loss⁽¹⁾		7,724	⁽³⁾		—			(62	)⁽⁵⁾		1,690	⁽⁶⁾		9,352
Adoption of ASU 2018- 02⁽²⁾		(13,122	)		—			—			(1,367	)		(14,489	)

Balance at August 25, 2018	$	—		$	(228,899	)	$	(873	)	$	(6,033	)	$	(235,805	)

(1)

Amounts in parentheses indicate debits to Accumulated other comprehensive loss (AOCL).

(2)

Represents the tax effects from deferred tax items reclassified from AOCL to retained earnings related to the adoption of ASU 2018-02.

(3)

The amounts reclassified from AOCL associated with our pension plans have been reclassified to Operating, selling, general and administrative expenses on the Consolidated Statements of Income as a result of the termination of the plans. See “Note L – Pension and Savings Plans” for further discussion.

(4)

Foreign currency is shown net of U.S. tax to account for foreign currency impacts of certain undistributed non-U.S. subsidiaries earnings. Other foreign currency is not shown net of additional U.S. tax as other basis differences of non-U.S. subsidiaries are intended to be permanently reinvested.

(5)

Represents realized losses on marketable securities, net of taxes of $234 in fiscal 2018 and $38 in fiscal 2017, which is recorded in Operating, selling, general, and administrative expenses on the Consolidated Statements of Income. See “Note F – Marketable Securities” for further discussion.

(6)

Represents gains and losses on derivatives, net of taxes of $515 in fiscal 2018 and $814 in fiscal 2017, which is recorded in Interest expense, net, on the Consolidated Statements of Income. See “Note H – Derivative Financial Instruments” for further discussion.

Derivative Financial Instruments	12 Months Ended
Derivative Financial Instruments	Aug. 25, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Note H – Derivative Financial Instruments The Company periodically uses derivatives to hedge exposures to interest rates. The Company does not hold or issue financial instruments for trading purposes. For transactions that meet the hedge accounting criteria, the Company formally designates and documents the instrument as a hedge at inception and quarterly thereafter assesses the hedges to ensure they are effective in offsetting changes in the cash flows of the underlying exposures. Derivatives are recorded in the Company’s Consolidated Balance Sheet at fair value, determined using available market information or other appropriate valuation methodologies. In accordance with ASC Topic 815, Derivatives and Hedging, the effective portion of a financial instrument’s change in fair value is recorded in Accumulated other comprehensive loss for derivatives that qualify as cash flow hedges and any ineffective portion of an instrument’s change in fair value is recognized in earnings. At August 25, 2018, the Company had $7.9 million recorded in Accumulated other comprehensive loss related to net realized losses associated with terminated interest rate swap and treasury rate lock derivatives which were designated as hedging instruments. Net losses are amortized into Interest expense over the remaining life of the associated debt. During the fiscal 2018 and 2017, the Company reclassified $2.2 million of net losses from Accumulated other comprehensive loss to Interest expense and expects the same level of expense in fiscal 2019.

Financing

12 Months Ended

Aug. 25, 2018

Debt Disclosure [Abstract]

Financing

Note I – Financing

The Company’s debt consisted of the following:


(in thousands)	August 25, 2018		August 26, 2017
7.125% Senior Notes due August 2018, effective interest rate of 7.28%	$	—	$	250,000
1.625% Senior Notes due April 2019, effective interest rate of 1.77%		250,000		250,000
4.000% Senior Notes due November 2020, effective interest rate of 4.43%		500,000		500,000
2.500% Senior Notes due April 2021, effective interest rate of 2.62%		250,000		250,000
3.700% Senior Notes due April 2022, effective interest rate of 3.85%		500,000		500,000
2.875% Senior Notes due January 2023, effective interest rate of 3.21%		300,000		300,000
3.125% Senior Notes due July 2023, effective interest rate of 3.26%		500,000		500,000
3.250% Senior Notes due April 2025, effective interest rate 3.36%		400,000		400,000
3.125% Senior Notes due April 2026, effective interest rate of 3.28%		400,000		400,000
3.750% Senior Notes due June 2027, effective interest rate of 3.83%		600,000		600,000
Commercial paper, weighted average interest rate of 2.29% and 1.44% at August 25, 2018 and August 26, 2017, respectively		1,325,300		1,155,100

Total debt before discounts and debt issuance costs		5,025,300		5,105,100
Less: Discounts and debt issuance costs		19,370		23,862

Long-term debt	$	5,005,930	$	5,081,238

As of August 25, 2018, the commercial paper borrowings and the $250 million 1.625% Senior Notes due April 2019 are classified as long-term in the accompanying Consolidated Balance Sheets as the Company has the ability and intent to refinance on a long-term basis through available capacity in its revolving credit facilities. As of August 25, 2018, the Company had $1.997 billion of availability under its $2.0 billion revolving credit facilities, which would allow it to replace these short-term obligations with long-term financing facilities.

The Company entered into a Master Extension, New Commitment and Amendment Agreement dated as of November 18, 2017 (the “Extension Amendment”) to the Third Amended and Restated Credit Agreement dated as of November 18, 2016, as amended, modified, extended or restated from time to time (the “Revolving Credit Agreement”). Under the Extension Amendment: (i) the Company’s borrowing capacity under the Revolving Credit Agreement was increased from $1.6 billion to $2.0 billion; (ii) the Company’s option to increase its borrowing capacity under the Revolving Credit Agreement was “refreshed” and the amount of such option remained at $400 million; the maximum borrowing under the Revolving Credit Agreement may, at the Company’s option, subject to lenders approval, be increased from $2.0 billion to $2.4 billion; (iii) the termination date of the Revolving Credit Agreement was extended from November 18, 2021 until November 18, 2022; and (iv) the Company has the option to make one additional written request of the lenders to extend the termination date then in effect for an additional year. Under the Revolving Credit Agreement, the Company may borrow funds consisting of Eurodollar loans, base rate loans or a combination of both. Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable percentage, as defined in the Revolving Credit Agreement, depending upon the Company’s senior, unsecured, (non-credit enhanced) long-term debt ratings. Interest accrues on base rate loans as defined in the Revolving Credit Agreement. As of August 25, 2018, the Company had $3.3 million of outstanding letters of credit under the Revolving Credit Agreement.

The Revolving Credit Agreement requires that the Company’s consolidated interest coverage ratio as of the last day of each quarter shall be no less than 2.5:1. This ratio is defined as the ratio of (i) consolidated earnings before interest, taxes and rents to (ii) consolidated interest expense plus consolidated rents. The Company’s consolidated interest coverage ratio as of August 25, 2018 was 5.8:1.

As of August 25, 2018, the Company had no outstanding borrowings under each of the revolving credit facilities, and $3.3 million of outstanding letters of credit under the Revolving Credit Agreement.

The Company also maintains a letter of credit facility that allows it to request the participating bank to issue letters of credit on its behalf up to an aggregate amount of $75 million. The letter of credit facility is in addition to the letters of credit that may be issued under the Revolving Credit Agreement. As of August 25, 2018, the Company had $71.0 million in letters of credit outstanding under the letter of credit facility.

In addition to the outstanding letters of credit issued under the committed facilities discussed above, the Company had $32.5 million in letters of credit outstanding as of August 25, 2018. These letters of credit have various maturity dates and were issued on an uncommitted basis.

On April 18, 2017, the Company issued $600 million in 3.750% Senior Notes due June 2027 under its shelf registration statement filed with the SEC on April 15, 2015 (the “2015 Shelf Registration”). The 2015 Shelf Registration allowed the Company to sell an indeterminate amount in debt securities to fund general corporate purposes, including repaying, redeeming or repurchasing outstanding debt and for working capital, capital expenditures, new location openings, stock repurchases and acquisitions. Proceeds from the debt issuance were used for general corporate purposes.

On April 21, 2016, the Company issued $400 million in 3.125% Senior Notes due April 2026 and $250 million in 1.625% Senior Notes due April 2019 under its 2015 Shelf Registration. Proceeds from the debt issuances were used for general corporate purposes.

All senior notes are subject to an interest rate adjustment if the debt ratings assigned to the senior notes are downgraded (as defined in the agreements). Further, the senior notes contain a provision that repayment of the senior notes may be accelerated if the Company experiences a change in control (as defined in the agreements). The Company’s borrowings under its senior notes contain minimal covenants, primarily restrictions on liens. Under its revolving credit facilities, covenants include restrictions on liens, a maximum debt to earnings ratio, a minimum fixed charge coverage ratio and a change of control provision that may require acceleration of the repayment obligations under certain circumstances. All of the repayment obligations under its borrowing arrangements may be accelerated and come due prior to the scheduled payment date if covenants are breached or an event of default occurs.

As of August 25, 2018, the Company was in compliance with all covenants related to its borrowing arrangements. All of the Company’s debt is unsecured. Scheduled maturities of debt are as follows:


(in thousands)	Scheduled Maturities
2019	$	1,575,300
2020		—
2021		750,000
2022		500,000
2023		800,000
Thereafter		1,400,000

Subtotal		5,025,300
Discount and debt issuance costs		19,370

Total Debt	$	5,005,930

The fair value of the Company’s debt was estimated at $4.948 billion as of August 25, 2018, and $5.171 billion as of August 26, 2017, based on the quoted market prices for the same or similar issues or on the current rates available to the Company for debt of the same terms (Level 2). Such fair value is less than the carrying value of debt by $57.5 million at August 25, 2018, which reflects face amount, adjusted for any unamortized debt issuance costs and discounts. At August 26, 2017, the fair value was greater than the carrying value of debt by $90.3 million.

Interest Expense

12 Months Ended

Aug. 25, 2018

Banking and Thrift, Interest [Abstract]

Interest Expense

Note J – Interest Expense

Net interest expense consisted of the following:


	Year Ended
(in thousands)	August 25, 2018			August 26, 2017			August 27, 2016
Interest expense	$	181,668		$	159,329		$	150,961
Interest income		(5,636	)		(3,502	)		(2,371	)
Capitalized interest		(1,505	)		(1,247	)		(909	)

	$	174,527		$	154,580		$	147,681

Stock Repurchase Program

12 Months Ended

Aug. 25, 2018

Equity [Abstract]

Stock Repurchase Program

Note K – Stock Repurchase Program

During 1998, the Company announced a program permitting the Company to repurchase a portion of its outstanding shares not to exceed a dollar maximum established by the Board. The program was amended on March 20, 2018 to increase the repurchase authorization to $19.65 billion from $18.65 billion. From January 1998 to August 25, 2018, the Company has repurchased a total of 144.7 million shares at an aggregate cost of $19.418 billion.

The Company’s share repurchase activity consisted of the following:


	Year Ended
(in thousands)	August 25, 2018		August 26, 2017		August 27, 2016
Amount	$	1,592,013	$	1,071,649	$	1,452,462
Shares		2,398		1,495		1,903

During fiscal year 2018, the Company retired 1.5 million shares of treasury stock which had previously been repurchased under the Company’s share repurchase program. The retirement increased Retained deficit by $918.5 million and decreased Additional paid-in capital by $60.5 million. During the comparable prior year period, the Company retired 1.8 million shares of treasury stock, which increased Retained deficit by $1.321 billion and decreased Additional paid-in capital by $64.9 million.

On September 26, 2018, the Board voted to increase the authorization by $1.25 billion. This brings the total value of the shares authorized to $20.9 billion. Subsequent to August 25, 2018, the Company has repurchased 346,979 shares of common stock at an aggregate cost of $263.4 million. Considering the cumulative repurchases and the increase in authorization subsequent to August 25, 2018, the Company has $1.22 billion remaining under the Board’s authorization to repurchase its common stock.

Pension and Savings Plans

12 Months Ended

Aug. 25, 2018

Retirement Benefits [Abstract]

Pension and Savings Plans

Note L – Pension and Savings Plans

Prior to January 1, 2003, substantially all full-time employees were covered by a defined benefit pension plan. The benefits under the plan were based on years of service and the employee’s highest consecutive five-year average compensation. On January 1, 2003, the plan was frozen, resulting in pension plan participants earning no new benefits under the plan formula and no new participants joining the pension plan.

On January 1, 2003, the Company’s supplemental defined benefit pension plan for certain highly compensated employees was also frozen, resulting in pension plan participants earning no new benefits under the plan formula and no new participants joining the pension plan.

On December 19, 2017, the Board of Directors approved a resolution to terminate both of the Company’s pension plans, effective March 15, 2018. The Company offered plan participants the option to receive an annuity purchased from an insurance carrier or a lump-sum cash payment based on a number of factors. During the fourth quarter of 2018, the Company contributed $11.4 million to the pension plans to ensure that sufficient assets were available for the lump-sum payments and annuity purchases, completed the transfer of all lump sum payments, transferred all remaining benefit obligations related to the pension plans to a highly rated insurance company, and recognized $130.3 million of non-cash pension termination charges in Operating, selling, general and administrative expenses in the Consolidated Statements of Income. The Company will no longer have any remaining defined pension benefit obligation and thus no periodic pension benefit expense.

The following table sets forth the plans’ funded status and amounts recognized in the Company’s Consolidated Balance Sheets:


(in thousands)	August 25, 2018			August 26, 2017
Change in Projected Benefit Obligation:
Projected benefit obligation at beginning of year	$	314,724		$	328,511
Interest cost		10,356			10,335
Actuarial (gains) losses		(676	)		(8,746	)
Annuities purchased		(157,589	)		—
Benefits and settlements paid		(166,815	)		(15,376	)

Benefit obligations at end of year	$	—		$	314,724

Change in Plan Assets:
Fair value of plan assets at beginning of year	$	316,267		$	289,386
Actual return on plan assets		(3,428	)		24,496
Employer contributions		11,596			17,761
Annuities purchased		(157,589	)		—
Benefits and settlements paid		(166,815	)		(15,376	)
Asset reversion upon termination		(31	)		—

Fair value of plan assets at end of year	$	—		$	316,267

Amount Recognized in the Statement of Financial Position:
Current liabilities	$	—		$	(283	)
Long-term assets		—			8,686
Long-term liabilities		—			(6,860	)

Net amount recognized	$	—		$	1,543

Amount Recognized in Accumulated Other Comprehensive Loss and not yet reflected in Net Periodic Benefit Cost:
Net actuarial loss	$	—		$	(118,889	)

Accumulated other comprehensive loss	$	—		$	(118,889	)

Net periodic benefit expense consisted of the following:


	Year Ended
(in thousands)	August 25, 2018			August 26, 2017			August 27, 2016
Interest cost	$	10,356		$	10,335		$	11,272
Expected return on plan assets		(18,997	)		(20,056	)		(16,512	)
Recognized net actuarial losses		10,736			13,873			10,506
Settlement loss		130,263			—			—

Net periodic benefit expense	$	132,358		$	4,152		$	5,266

The blended actuarial assumptions used in determining the projected benefit obligation include the following:


	Year Ended
	August 25, 2018			August 26, 2017			August 27, 2016
Discount rate to determine benefit obligation		3.86	%		3.86	%		3.72	%
Discount rate to determine net interest cost		3.36	%		3.21	%		3.90	%
Expected long-term rate of return on plan assets		6.00	%		7.00	%		7.00	%

The Company has a 401(k) plan that covers all domestic employees who meet the plan’s participation requirements. The plan features include Company matching contributions, immediate 100% vesting of Company contributions and a savings option up to 25% of qualified earnings. The Company makes matching contributions, per pay period, up to a specified percentage of employees’ contributions as approved by the Board. The Company made matching contributions to employee accounts in connection with the 401(k) plan of $23.1 million in fiscal 2018, $21.0 million in fiscal 2017, and $19.7 million in fiscal 2016.

Sale of Assets	12 Months Ended
Sale of Assets	Aug. 25, 2018
Property, Plant and Equipment [Abstract]
Sale of Assets	Note M – Sale of Assets During the second quarter of fiscal 2018, the Company determined that the approximate fair value less costs to sell its IMC and AutoAnything businesses was significantly lower than the carrying value of the net assets based on recent offers received and recorded impairment charges totaling $193.2 million within Operating, selling, general and administrative expenses in its Condensed Consolidated Statements of Income. The Company recorded an impairment charge of $93.6 million for its IMC business, which is reflected as a component of Auto Parts Locations in its segment reporting. Impairment charges for AutoAnything, which is reflected as a component of the Other category in the Company’s segment reporting, totaled $99.6 million. During the third quarter of fiscal 2018, the Company completed the IMC and AutoAnything transactions for total consideration that approximated the remaining net book value at the closing date.

Goodwill and Intangibles

12 Months Ended

Aug. 25, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangibles

Note N – Goodwill and Intangibles

The changes in the carrying amount of goodwill are as follows:


(in thousands)	Auto Parts Locations			Other			Total
Net balance as of August 27, 2016	$	326,703		$	65,184		$	391,887
Goodwill added through acquisition		—			—			—
Goodwill adjustments		—			—			—

Net balance as of August 26, 2017		326,703			65,184			391,887
Goodwill added through acquisition		—			—			—
Goodwill adjustments		(24,058	)		(65,184	)		(89,242	)

Net balance as of August 25, 2018	$	302,645		$	—		$	302,645

During the second quarter of fiscal 2018, the Company recorded impairment charges related to its IMC and AutoAnything businesses as the Company determined that the approximate fair value less costs to sell the businesses was significantly lower than the carrying value of the net assets. The impairment charge for the IMC business is reflected as a component of Auto Parts Locations, and the impairment charge for AutoAnything is reflected as a component of the Other category in our segment reporting. See “Note M – Sale of Assets” for further discussion.

The Company performs its annual goodwill and intangibles impairment test in the fourth quarter of each fiscal year. In the fourth quarter of fiscal 2018, the Company concluded its remaining goodwill was not impaired. In the fourth quarter of fiscal 2017, the Company concluded that its goodwill was not impaired. Total accumulated goodwill impairment as of August 25, 2018 is $107.5 million compared to $18.3 million as of August 26, 2017.

The carrying amounts of intangible assets are included in Other long-term assets as follows:


	August 25, 2018
(in thousands)	Estimated Useful Life		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortizing intangible assets:
Technology		3-5 years	$	870	$	(870	)	$	—
Customer relationships		3-10 years		29,376		(19,587	)		9,789

			$	30,246	$	(20,457	)		9,789

Total intangible assets other than goodwill								$	9,789


	August 26, 2017
(in thousands)	Estimated Useful Life		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortizing intangible assets:
Technology		3-5 years	$	10,570	$	(9,994	)	$	576
Noncompete agreements		5 years		1,300		(1,223	)		77
Customer relationships		3-10 years		49,676		(24,730	)		24,946

			$	61,546	$	(35,947	)		25,599

Non-amortizing intangible asset:
Trade names									26,900

Total intangible assets other than goodwill								$	52,499

During the second quarter of fiscal 2018, the Company recorded $26.9 million of impairment charges related to AutoAnything’s and IMC’s trade names as the Company determined that the approximate fair value less costs to sell the businesses was significantly lower than the carrying value of the net assets. See “Note M – Sale of Assets” for further discussion. Trade names at August 25, 2018 and August 26, 2017 reflect a total accumulated impairment of $31.0 million and $4.1 million, respectively.

Amortization expense of intangible assets for the years ended August 25, 2018 and August 26, 2017 was $5.1 million and $8.5 million, respectively.

Total future amortization expense for intangible assets that have finite lives, based on the existing intangible assets and their current estimated useful lives as of August 25, 2018, is estimated as follows:


(in thousands)	Total
2019	$	4,173
2020		4,173
2021		1,443
Thereafter		—

	$	9,789

Leases

12 Months Ended

Aug. 25, 2018

Leases [Abstract]

Leases

Note O – Leases

The Company leases some of its retail stores, distribution centers, facilities, land and equipment, including vehicles. Other than vehicle leases, most of the leases are operating leases, which include renewal options made at the Company’s election and provisions for percentage rent based on sales. Rental expense was $315.6 million in fiscal 2018, $302.9 million in fiscal 2017, and $280.5 million in fiscal 2016. Percentage rentals were insignificant.

The Company records rent for all operating leases on a straight-line basis over the lease term, including any reasonably assured renewal periods and the period of time prior to the lease term that the Company is in possession of the leased space for the purpose of installing leasehold improvements. Differences between recorded rent expense and cash payments are recorded as a liability in Accrued expenses and other and Other long-term liabilities in the accompanying Consolidated Balance Sheets, based on the terms of the lease. The deferred rent approximated $139.6 million on August 25, 2018, and $130.2 million on August 26, 2017.

The Company has a fleet of vehicles used for delivery to its commercial customers and stores and travel for members of field management. The majority of these vehicles are held under capital leases. At August 25, 2018, the Company had capital lease assets of $156.8 million, net of accumulated amortization of $79.9 million, and capital lease obligations of $154.3 million, of which $52.3 million is classified as Accrued expenses and other as it represents the current portion of these obligations. At August 26, 2017, the Company had capital lease assets of $152.0 million, net of accumulated amortization of $70.2 million, and capital lease obligations of $150.5 million, of which $48.1 million is classified as Accrued expenses and other as it represents the current portion of these obligations.

Future minimum annual rental commitments under non-cancelable operating leases and capital leases were as follows at the end of fiscal 2018:


(in thousands)	Operating Leases		Capital Leases
2019	$	300,866	$	52,290
2020		289,007		50,777
2021		267,298		38,290
2022		244,786		21,211
2023		215,237		3,118
Thereafter		823,969		—

Total minimum payments required	$	2,141,163		165,686

Less: Interest				(11,383	)

Present value of minimum capital lease payments			$	154,303

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Aug. 25, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note P – Commitments and Contingencies Construction commitments, primarily for new stores, totaled approximately $41.3 million at August 25, 2018. The Company had $106.8 million in outstanding standby letters of credit and $23.6 million in surety bonds as of August 25, 2018, which all have expiration periods of less than one year. A substantial portion of the outstanding standby letters of credit (which are primarily renewed on an annual basis) and surety bonds are used to cover reimbursement obligations to our workers’ compensation carriers. There are no additional contingent liabilities associated with these instruments as the underlying liabilities are already reflected in the Consolidated Balance Sheets. The standby letters of credit and surety bonds arrangements have automatic renewal clauses.

Litigation	12 Months Ended
Litigation	Aug. 25, 2018
Commitments and Contingencies Disclosure [Abstract]
Litigation	Note Q – Litigation In July 2014, the Company received a subpoena from the District Attorney of the County of Alameda, along with other environmental prosecutorial offices in the state of California, seeking documents and information related to the handling, storage and disposal of hazardous waste. The Company received notice that the District Attorney will seek injunctive and monetary relief. The Company is cooperating fully with the request and cannot predict the ultimate outcome of these efforts, although the Company has accrued all amounts it believes to be probable and reasonably estimable. The Company does not believe the ultimate resolution of this matter will have a material adverse effect on its consolidated financial position, results of operations or cash flows. Arising out of an April 2016 letter from the California Air Resources Board (“CARB”), one of the Company’s formerly-owned subsidiaries was sued in March 2018 by CARB seeking penalties, among other relief, for alleged violations of the California Health and Safety Code, Title 13 of the California Code of Regulations and the California Vehicle Code related to the sale and advertisement of certain aftermarket motor vehicle pollution control parts in the State of California. On February 26, 2018, the Company completed its transaction to sell substantially all of the assets, net of assumed liabilities related to its AutoAnything operations. As part of the sale, the Company retained the liability related to this lawsuit. The Company is cooperating fully with the lawsuit and cannot predict the ultimate outcome of these efforts. The Company does not believe that any resolution of the matter will have a material adverse effect on its consolidated financial position, results of operations or cash flows. The Company is involved in various other legal proceedings incidental to the conduct of its business, including, but not limited to, several lawsuits containing class-action allegations in which the plaintiffs are current and former hourly and salaried employees who allege various wage and hour violations and unlawful termination practices. The Company does not currently believe that, either individually or in the aggregate, these matters will result in liabilities material to the Company’s financial condition, results of operations or cash flows.

Segment Reporting

12 Months Ended

Aug. 25, 2018

Segment Reporting [Abstract]

Segment Reporting

Note R – Segment Reporting

The Company’s operating segments (Domestic Auto Parts, Mexico and Brazil; and IMC results through April 4, 2018) are aggregated as one reportable segment: Auto Parts Locations. The criteria the Company used to identify the reportable segment are primarily the nature of the products the Company sells and the operating results that are regularly reviewed by the Company’s chief operating decision maker to make decisions about the resources to be allocated to the business units and to assess performance. The accounting policies of the Company’s reportable segment are the same as those described in “Note A – Significant Accounting Policies.”

The Auto Parts Locations segment is a retailer and distributor of automotive parts and accessories through the Company’s 6,202 locations in the United States, Puerto Rico, Mexico and Brazil. Each location carries an extensive product line for cars, sport utility vehicles, vans and light trucks, including new and remanufactured automotive hard parts, maintenance items, accessories and non-automotive products.

The Other category reflects business activities of three operating segments that are not separately reportable due to the materiality of these operating segments. The operating segments include ALLDATA, which produces, sells and maintains diagnostic and repair information software used in the automotive repair industry; E-commerce, which includes direct sales to customers through www.autozone.com for sales that are not fulfilled by local stores; and AutoAnything, which includes direct sales to customers through www.autoanything.com, prior to the Company’s sale of substantially all of its assets on February 26, 2018.

The Company evaluates its reportable segment primarily on the basis of net sales and segment profit, which is defined as gross profit. The following table shows segment results for the following fiscal years:


	Year Ended
(in thousands)	August 25, 2018			August 26, 2017			August 27, 2016
Net Sales:
Auto Parts Locations	$	10,951,498		$	10,523,272		$	10,261,112
Other		269,579			365,404			374,564

Total	$	11,221,077		$	10,888,676		$	10,635,676

Segment Profit:
Auto Parts Locations	$	5,805,561		$	5,544,494		$	5,410,477
Other		168,185			195,126			198,259

Gross profit		5,973,746			5,739,620			5,608,736
Operating, selling, general and administrative expenses⁽¹⁾		(4,162,890	)		(3,659,551	)		(3,548,341	)
Interest expense, net		(174,527	)		(154,580	)		(147,681	)

Income before income taxes	$	1,636,329		$	1,925,489		$	1,912,714

Segment Assets:
Auto Parts Locations	$	9,231,021		$	8,964,371		$	8,351,883
Other		115,959			295,410			247,904

Total	$	9,346,980		$	9,259,781		$	8,599,787

Capital Expenditures:
Auto Parts Locations	$	499,762		$	533,304		$	470,631
Other		22,026			20,528			18,160

Total	$	521,788		$	553,832		$	488,791

Auto Parts Locations Sales by Product Grouping:
Failure	$	5,338,890		$	5,100,702		$	4,913,423
Maintenance items		3,914,546			3,774,386			3,721,240
Discretionary		1,698,062			1,648,184			1,626,449

Auto Parts Locations net sales	$	10,951,498		$	10,523,272		$	10,261,112

(1)

Operating, selling, general and administrative expenses for fiscal 2018 include $130.3 million related to pension termination charges and $193.2 million related to impairment charges.

Quarterly Summary

12 Months Ended

Aug. 25, 2018

Quarterly Financial Information Disclosure [Abstract]

Quarterly Summary

Note S – Quarterly Summary⁽¹⁾

(Unaudited)


	Twelve Weeks Ended						Sixteen Weeks Ended
(in thousands, except per share data)	November 18, 2017		February 10, 2018⁽³⁾⁽⁵⁾		May 5, 2018⁽⁵⁾		August 25, 2018^(2)(4)(5)
Net sales	$	2,589,131	$	2,413,026	$	2,660,152	$	3,558,769
Gross profit		1,365,848		1,277,046		1,422,974		1,907,879
Operating profit		468,754		205,098		545,765		591,239
Income before income taxes		429,865		165,758		503,807		536,899
Net income		281,003		289,530		366,721		400,282
Basic earnings per share		10.17		10.58		13.62		15.27
Diluted earnings per share		10.00		10.38		13.42		15.02

	Twelve Weeks Ended						Sixteen Weeks Ended
(in thousands, except per share data)	November 19, 2016		February 11, 2017		May 6, 2017		August 26, 2017⁽²⁾
Net sales	$	2,467,845	$	2,289,219	$	2,619,007	$	3,512,605
Gross profit		1,301,542		1,205,536		1,378,418		1,854,125
Operating profit		458,902		383,969		529,570		707,628
Income before income taxes		425,596		349,771		493,895		656,227
Net income		278,125		237,145		331,700		433,899
Basic earnings per share		9.61		8.28		11.70		15.52
Diluted earnings per share		9.36		8.08		11.44		15.27

(1)

The sum of quarterly amounts may not equal the annual amounts reported due to rounding. In addition, the earnings per share amounts are computed independently for each quarter while the full year is based on the annual weighted average shares outstanding.

(2)

The fourth quarter for fiscal 2018 and fiscal 2017 are based on a 16-week period. All other quarters presented are based on a 12-weekperiod.

(3)

The second quarter of fiscal 2018 includes impairment charges of $193.2 million. See “Note M – Sale of Assets.”

(4)

The fourth quarter of fiscal 2018 includes pension termination charges of $130.3 million. See “Note L - Pension and Savings Plans.”

(5)

Net income of the second, third and fourth quarter of fiscal 2018 benefitted from changes due to Tax Reform. See “Note D – Income Taxes.”

Significant Accounting Policies (Policies)

12 Months Ended

Aug. 25, 2018

Accounting Policies [Abstract]

Business

Fiscal Year

Fiscal Year: The Company’s fiscal year consists of 52 or 53 weeks ending on the last Saturday in August. Fiscal 2018, 2017 and 2016 represented 52 weeks.

Basis of Presentation

Use of Estimates

Cash and Cash Equivalents

Accounts Receivable

Merchandise Inventories

Marketable Securities

Property and Equipment

Impairment of Long-Lived Assets

Goodwill

Intangible Assets

Derivative Instruments and Hedging Activities

Foreign Currency

Self-Insurance Reserves

Deferred Rent

Financial Instruments

Vendor Allowances and Advertising Costs

Cost of Sales and Operating, Selling, General and Administrative Expenses

Cost of Sales and Operating, Selling, General and Administrative Expenses: The following illustrates the primary costs classified in each major expense category:

Cost of Sales

•

Total cost of merchandise sold, including:

•

Freight expenses associated with moving merchandise inventories from the Company’s vendors to the distribution centers;

•

Vendor allowances that are not reimbursements for specific, incremental and identifiable costs

•

Costs associated with operating the Company’s supply chain, including payroll and benefit costs, warehouse occupancy costs, transportation costs and depreciation; and

•

Inventory shrinkage

Operating, Selling, General and Administrative Expenses

•

Payroll and benefit costs for store, field leadership and store support employees;

•

Occupancy costs of store and store support facilities;

•

Depreciation and amortization related to store and store support assets;

•

Transportation costs associated with field leadership, commercial sales force and hub deliveries;

•

Advertising;

•

Self insurance costs; and

•

Other administrative costs, such as credit card transaction fees, legal costs, supplies, and travel and lodging

Warranty Costs

Shipping and Handling Costs

Pre-opening Expenses

Pre-opening Expenses: Pre-opening expenses, which consist primarily of payroll and occupancy costs, are expensed as incurred.

Earnings per Share

Share-Based Payments

Risk and Uncertainties

Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements:

Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements:

Share-Based Payments (Tables)

12 Months Ended

Aug. 25, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Weighted Average for Key Assumptions Used in Determining Fair Value of Options Granted and Related Share-Based Compensation Expense

The following table presents the weighted average for key assumptions used in determining the fair value of options granted and the related share-based compensation expense:


	Year Ended
	August 25, 2018			August 26, 2017			August 27, 2016
Expected price volatility		20	%		18	%		18	%
Risk-free interest rates		1.9	%		1.2	%		1.5	%
Weighted average expected lives (in years)		5.1			5.1			5.1
Forfeiture rate		10	%		10	%		10	%
Dividend yield		0	%		0	%		0	%

Stock Option Activity

The following table summarizes information about stock option activity for the year ended August 25, 2018:


	Number of Shares			Weighted Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)
Outstanding – August 26, 2017		1,798,055		$	493.18
Granted		284,335			587.57
Exercised		(297,616	)		298.02
Cancelled		(77,908	)		672.61

Outstanding – August 25, 2018		1,706,866			534.74		6.06	$	402,631

Exercisable		1,014,819			446.07		4.73		329,352

Expected to vest		622,842			664.77		8.02		38,387

Available for future grants		686,577

Accrued Expenses and Other (Tables)

12 Months Ended

Aug. 25, 2018

Payables and Accruals [Abstract]

Accrued Expenses

Accrued expenses and other consisted of the following:


(in thousands)	August 25, 2018		August 26, 2017
Accrued compensation, related payroll taxes and benefits	$	195,004	$	181,591
Property, sales, and other taxes		106,050		98,829
Medical and casualty insurance claims (current portion)		88,761		84,756
Capital lease obligations		52,290		48,134
Accrued interest		36,902		41,047
Accrued gift cards		27,401		24,192
Accrued sales and warranty returns		20,025		19,520
Other		80,461		65,281

	$	606,894	$	563,350

Income Taxes (Tables)

12 Months Ended

Aug. 25, 2018

Income Tax Disclosure [Abstract]

Components of Income from Continuing Operations

The components of income from continuing operations before income taxes are as follows:


	Year Ended
(in thousands)	August 25, 2018		August 26, 2017		August 27, 2016
Domestic	$	1,412,963	$	1,737,401	$	1,737,727
International		223,366		188,088		174,987

	$	1,636,329	$	1,925,489	$	1,912,714

Provision for Income Tax Expense

The provision for income tax expense consisted of the following:


	Year Ended
(in thousands)	August 25, 2018			August 26, 2017			August 27, 2016
Current:
Federal	$	328,963		$	487,492		$	534,621
State		36,389			31,733			39,223
International		57,702			50,493			52,844

		423,054			569,718			626,688
Deferred:
Federal		(131,926	)		72,208			48,509
State		8,167			7,769			9,453
International		(502	)		(5,075	)		(12,943	)

		(124,261	)		74,902			45,019

Income tax expense	$	298,793		$	644,620		$	671,707

Reconciliation of Provision for Income Taxes

A reconciliation of the provision for income taxes to the amount computed by applying the federal statutory tax rate to income before income taxes is as follows:


	Year Ended
(in thousands)	August 25, 2018			August 26, 2017			August 27, 2016
Federal tax at statutory U.S. income tax rate		25.9	%		35.0	%		35.0	%
State income taxes, net		1.9	%		1.3	%		1.6	%
Transition tax		1.6	%		—			—
Share-based compensation		(1.6	%)		(1.4	%)		—
Impact of tax reform		(9.6	%)		—			—
Other		0.1	%		(1.4	%)		(1.5	%)

Effective tax rate		18.3	%		33.5	%		35.1	%

Significant Components of Company's Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets and liabilities were as follows:


(in thousands)	August 25, 2018			August 26, 2017
Deferred tax assets:
Net operating loss and credit carryforwards	$	47,190		$	48,062
Accrued benefits		62,867			96,664
Other		46,375			56,052

Total deferred tax assets		156,432			200,778
Less: Valuation allowances		(19,619	)		(13,501	)

Net deferred tax assets		136,813			187,277
Deferred tax liabilities:
Property and equipment		(101,049	)		(117,580	)
Inventory		(242,138	)		(333,422	)
Prepaid expenses		(42,019	)		(60,920	)
Other		(2,191	)		(11,158	)

Total deferred tax liabilities		(387,397	)		(523,080	)

Net deferred tax liabilities	$	(250,584	)	$	(335,803	)

Reconciliation of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:


(in thousands)	August 25, 2018			August 26, 2017
Beginning balance	$	22,201		$	27,726
Additions based on tax positions related to the current year		8,184			7,089
Additions for tax positions of prior years		1,404			278
Reductions for tax positions of prior years		(482	)		(6,954	)
Reductions due to settlements		(1,930	)		(1,964	)
Reductions due to statute of limitations		(3,300	)		(3,974	)

Ending balance	$	26,077		$	22,201

Fair Value Measurements (Tables)

12 Months Ended

Aug. 25, 2018

Fair Value Disclosures [Abstract]

Company's Assets and Liabilities Measured at Fair Value on Recurring Basis

The Company’s assets and liabilities measured at fair value on a recurring basis were as follows:


	August 25, 2018
(in thousands)	Level 1		Level 2		Level 3		Fair Value
Other current assets	$	55,711	$	3,733	$	—	$	59,444
Other long-term assets		58,973		16,259		—		75,232

	$	114,684	$	19,992	$	—	$	134,676


	August 26, 2017
(in thousands)	Level 1		Level 2		Level 3		Fair Value
Other current assets	$	18,453	$	120	$	—	$	18,573
Other long-term assets		53,319		28,981		—		82,300

	$	71,772	$	29,101	$	—	$	100,873

Marketable Securities (Tables)

12 Months Ended

Aug. 25, 2018

Investments, Debt and Equity Securities [Abstract]

Available-for-Sale Marketable Securities

The Company’s available-for-sale marketable securities consisted of the following:


	August 25, 2018
(in thousands)	Amortized Cost Basis		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Corporate securities	$	50,306	$	—	$	(684	)	$	49,622
Government bonds		28,777		—		(173	)		28,604
Mortgage-backed securities		3,248		—		(90	)		3,158
Asset-backed securities and other		53,445		—		(153	)		53,292

	$	135,776	$	—	$	(1,100	)	$	134,676


	August 26, 2017
(in thousands)	Amortized Cost Basis		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Corporate securities	$	39,917	$	73	$	(13	)	$	39,977
Government bonds		31,076		49		(74	)		31,051
Mortgage-backed securities		4,850		2		(42	)		4,810
Asset-backed securities and other		25,042		28		(35	)		25,035

	$	100,885	$	152	$	(164	)	$	100,873

Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Aug. 25, 2018

Equity [Abstract]

Changes in Accumulated Other Comprehensive Loss

Changes in Accumulated other comprehensive loss consisted of the following:


(in thousands)	Pension Liability			Foreign Currency⁽⁴⁾			Net Unrealized Gain (Loss) on Securities			Derivatives			Total
Balance at August 27, 2016	$	(88,890	)	$	(211,012	)	$	120		$	(7,747	)	$	(307,529	)
Other comprehensive income (loss) before reclassifications		8,046			35,198			(60	)		—			43,184
Amounts reclassified from Accumulated other comprehensive loss⁽¹⁾		8,468	⁽³⁾		—			(71	)⁽⁵⁾		1,391	⁽⁶⁾		9,788

Balance at August 26, 2017		(72,376	)		(175,814	)		(11	)		(6,356	)		(254,557	)
Other comprehensive income (loss) before reclassifications		77,774			(53,085	)		(800	)		—			23,889
Amounts reclassified from Accumulated other comprehensive loss⁽¹⁾		7,724	⁽³⁾		—			(62	)⁽⁵⁾		1,690	⁽⁶⁾		9,352
Adoption of ASU 2018- 02⁽²⁾		(13,122	)		—			—			(1,367	)		(14,489	)

Balance at August 25, 2018	$	—		$	(228,899	)	$	(873	)	$	(6,033	)	$	(235,805	)

(1)

Amounts in parentheses indicate debits to Accumulated other comprehensive loss (AOCL).

(2)

Represents the tax effects from deferred tax items reclassified from AOCL to retained earnings related to the adoption of ASU 2018-02.

(3)

(4)

(5)

(6)

Financing (Tables)

12 Months Ended

Aug. 25, 2018

Debt Disclosure [Abstract]

Schedule of Debt

The Company’s debt consisted of the following:


(in thousands)	August 25, 2018		August 26, 2017
7.125% Senior Notes due August 2018, effective interest rate of 7.28%	$	—	$	250,000
1.625% Senior Notes due April 2019, effective interest rate of 1.77%		250,000		250,000
4.000% Senior Notes due November 2020, effective interest rate of 4.43%		500,000		500,000
2.500% Senior Notes due April 2021, effective interest rate of 2.62%		250,000		250,000
3.700% Senior Notes due April 2022, effective interest rate of 3.85%		500,000		500,000
2.875% Senior Notes due January 2023, effective interest rate of 3.21%		300,000		300,000
3.125% Senior Notes due July 2023, effective interest rate of 3.26%		500,000		500,000
3.250% Senior Notes due April 2025, effective interest rate 3.36%		400,000		400,000
3.125% Senior Notes due April 2026, effective interest rate of 3.28%		400,000		400,000
3.750% Senior Notes due June 2027, effective interest rate of 3.83%		600,000		600,000
Commercial paper, weighted average interest rate of 2.29% and 1.44% at August 25, 2018 and August 26, 2017, respectively		1,325,300		1,155,100

Total debt before discounts and debt issuance costs		5,025,300		5,105,100
Less: Discounts and debt issuance costs		19,370		23,862

Long-term debt	$	5,005,930	$	5,081,238

Scheduled Maturities of Debt

Scheduled maturities of debt are as follows:


(in thousands)	Scheduled Maturities
2019	$	1,575,300
2020		—
2021		750,000
2022		500,000
2023		800,000
Thereafter		1,400,000

Subtotal		5,025,300
Discount and debt issuance costs		19,370

Total Debt	$	5,005,930

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 835
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 235
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-Subparagraph (SX 210.4-08.(e),(f))
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
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-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

Interest Expense (Tables)

12 Months Ended

Aug. 25, 2018

Banking and Thrift, Interest [Abstract]

Net Interest Expense

Net interest expense consisted of the following:


	Year Ended
(in thousands)	August 25, 2018			August 26, 2017			August 27, 2016
Interest expense	$	181,668		$	159,329		$	150,961
Interest income		(5,636	)		(3,502	)		(2,371	)
Capitalized interest		(1,505	)		(1,247	)		(909	)

	$	174,527		$	154,580		$	147,681

Stock Repurchase Program (Tables)

12 Months Ended

Aug. 25, 2018

Equity [Abstract]

Summarize Company's Share Repurchase Activity

The Company’s share repurchase activity consisted of the following:


	Year Ended
(in thousands)	August 25, 2018		August 26, 2017		August 27, 2016
Amount	$	1,592,013	$	1,071,649	$	1,452,462
Shares		2,398		1,495		1,903

Pension and Savings Plans (Tables)

12 Months Ended

Aug. 25, 2018

Retirement Benefits [Abstract]

Plan's Funded Status and Amounts Recognized in Company's Consolidated Balance Sheets

The following table sets forth the plans’ funded status and amounts recognized in the Company’s Consolidated Balance Sheets:


(in thousands)	August 25, 2018			August 26, 2017
Change in Projected Benefit Obligation:
Projected benefit obligation at beginning of year	$	314,724		$	328,511
Interest cost		10,356			10,335
Actuarial (gains) losses		(676	)		(8,746	)
Annuities purchased		(157,589	)		—
Benefits and settlements paid		(166,815	)		(15,376	)

Benefit obligations at end of year	$	—		$	314,724

Change in Plan Assets:
Fair value of plan assets at beginning of year	$	316,267		$	289,386
Actual return on plan assets		(3,428	)		24,496
Employer contributions		11,596			17,761
Annuities purchased		(157,589	)		—
Benefits and settlements paid		(166,815	)		(15,376	)
Asset reversion upon termination		(31	)		—

Fair value of plan assets at end of year	$	—		$	316,267

Amount Recognized in the Statement of Financial Position:
Current liabilities	$	—		$	(283	)
Long-term assets		—			8,686
Long-term liabilities		—			(6,860	)

Net amount recognized	$	—		$	1,543

Amount Recognized in Accumulated Other Comprehensive Loss and not yet reflected in Net Periodic Benefit Cost:
Net actuarial loss	$	—		$	(118,889	)

Accumulated other comprehensive loss	$	—		$	(118,889	)

Net Periodic Benefit Expense

Net periodic benefit expense consisted of the following:


	Year Ended
(in thousands)	August 25, 2018			August 26, 2017			August 27, 2016
Interest cost	$	10,356		$	10,335		$	11,272
Expected return on plan assets		(18,997	)		(20,056	)		(16,512	)
Recognized net actuarial losses		10,736			13,873			10,506
Settlement loss		130,263			—			—

Net periodic benefit expense	$	132,358		$	4,152		$	5,266

Actuarial Assumptions Used in Determining Projected Benefit Obligation

The blended actuarial assumptions used in determining the projected benefit obligation include the following:


	Year Ended
	August 25, 2018			August 26, 2017			August 27, 2016
Discount rate to determine benefit obligation		3.86	%		3.86	%		3.72	%
Discount rate to determine net interest cost		3.36	%		3.21	%		3.90	%
Expected long-term rate of return on plan assets		6.00	%		7.00	%		7.00	%

Goodwill and Intangibles (Tables)

12 Months Ended

Aug. 25, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill are as follows:


(in thousands)	Auto Parts Locations			Other			Total
Net balance as of August 27, 2016	$	326,703		$	65,184		$	391,887
Goodwill added through acquisition		—			—			—
Goodwill adjustments		—			—			—

Net balance as of August 26, 2017		326,703			65,184			391,887
Goodwill added through acquisition		—			—			—
Goodwill adjustments		(24,058	)		(65,184	)		(89,242	)

Net balance as of August 25, 2018	$	302,645		$	—		$	302,645

Schedule of Carrying Amounts of Intangible Assets

The carrying amounts of intangible assets are included in Other long-term assets as follows:


	August 25, 2018
(in thousands)	Estimated Useful Life		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortizing intangible assets:
Technology		3-5 years	$	870	$	(870	)	$	—
Customer relationships		3-10 years		29,376		(19,587	)		9,789

			$	30,246	$	(20,457	)		9,789

Total intangible assets other than goodwill								$	9,789


	August 26, 2017
(in thousands)	Estimated Useful Life		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortizing intangible assets:
Technology		3-5 years	$	10,570	$	(9,994	)	$	576
Noncompete agreements		5 years		1,300		(1,223	)		77
Customer relationships		3-10 years		49,676		(24,730	)		24,946

			$	61,546	$	(35,947	)		25,599

Non-amortizing intangible asset:
Trade names									26,900

Total intangible assets other than goodwill								$	52,499

Schedule of Future Amortization Expense for Finite Lived Intangible Assets


(in thousands)	Total
2019	$	4,173
2020		4,173
2021		1,443
Thereafter		—

	$	9,789

Leases (Tables)

12 Months Ended

Aug. 25, 2018

Leases [Abstract]

Future Minimum Annual Rental Commitments Under Non-Cancelable Operating Leases and Capital Leases

Future minimum annual rental commitments under non-cancelable operating leases and capital leases were as follows at the end of fiscal 2018:


(in thousands)	Operating Leases		Capital Leases
2019	$	300,866	$	52,290
2020		289,007		50,777
2021		267,298		38,290
2022		244,786		21,211
2023		215,237		3,118
Thereafter		823,969		—

Total minimum payments required	$	2,141,163		165,686

Less: Interest				(11,383	)

Present value of minimum capital lease payments			$	154,303

Segment Reporting (Tables)

12 Months Ended

Aug. 25, 2018

Segment Reporting [Abstract]

Segment Results


	Year Ended
(in thousands)	August 25, 2018			August 26, 2017			August 27, 2016
Net Sales:
Auto Parts Locations	$	10,951,498		$	10,523,272		$	10,261,112
Other		269,579			365,404			374,564

Total	$	11,221,077		$	10,888,676		$	10,635,676

Segment Profit:
Auto Parts Locations	$	5,805,561		$	5,544,494		$	5,410,477
Other		168,185			195,126			198,259

Gross profit		5,973,746			5,739,620			5,608,736
Operating, selling, general and administrative expenses⁽¹⁾		(4,162,890	)		(3,659,551	)		(3,548,341	)
Interest expense, net		(174,527	)		(154,580	)		(147,681	)

Income before income taxes	$	1,636,329		$	1,925,489		$	1,912,714

Segment Assets:
Auto Parts Locations	$	9,231,021		$	8,964,371		$	8,351,883
Other		115,959			295,410			247,904

Total	$	9,346,980		$	9,259,781		$	8,599,787

Capital Expenditures:
Auto Parts Locations	$	499,762		$	533,304		$	470,631
Other		22,026			20,528			18,160

Total	$	521,788		$	553,832		$	488,791

Auto Parts Locations Sales by Product Grouping:
Failure	$	5,338,890		$	5,100,702		$	4,913,423
Maintenance items		3,914,546			3,774,386			3,721,240
Discretionary		1,698,062			1,648,184			1,626,449

Auto Parts Locations net sales	$	10,951,498		$	10,523,272		$	10,261,112

(1)

Operating, selling, general and administrative expenses for fiscal 2018 include $130.3 million related to pension termination charges and $193.2 million related to impairment charges.

Quarterly Summary (Tables)

12 Months Ended

Aug. 25, 2018

Quarterly Financial Information Disclosure [Abstract]

Quarterly Summary


	Twelve Weeks Ended						Sixteen Weeks Ended
(in thousands, except per share data)	November 18, 2017		February 10, 2018⁽³⁾⁽⁵⁾		May 5, 2018⁽⁵⁾		August 25, 2018^(2)(4)(5)
Net sales	$	2,589,131	$	2,413,026	$	2,660,152	$	3,558,769
Gross profit		1,365,848		1,277,046		1,422,974		1,907,879
Operating profit		468,754		205,098		545,765		591,239
Income before income taxes		429,865		165,758		503,807		536,899
Net income		281,003		289,530		366,721		400,282
Basic earnings per share		10.17		10.58		13.62		15.27
Diluted earnings per share		10.00		10.38		13.42		15.02

	Twelve Weeks Ended						Sixteen Weeks Ended
(in thousands, except per share data)	November 19, 2016		February 11, 2017		May 6, 2017		August 26, 2017⁽²⁾
Net sales	$	2,467,845	$	2,289,219	$	2,619,007	$	3,512,605
Gross profit		1,301,542		1,205,536		1,378,418		1,854,125
Operating profit		458,902		383,969		529,570		707,628
Income before income taxes		425,596		349,771		493,895		656,227
Net income		278,125		237,145		331,700		433,899
Basic earnings per share		9.61		8.28		11.70		15.52
Diluted earnings per share		9.36		8.08		11.44		15.27

(1)

(2)

The fourth quarter for fiscal 2018 and fiscal 2017 are based on a 16-week period. All other quarters presented are based on a 12-weekperiod.

(3)

The second quarter of fiscal 2018 includes impairment charges of $193.2 million. See “Note M – Sale of Assets.”

(4)

The fourth quarter of fiscal 2018 includes pension termination charges of $130.3 million. See “Note L - Pension and Savings Plans.”

(5)

Net income of the second, third and fourth quarter of fiscal 2018 benefitted from changes due to Tax Reform. See “Note D – Income Taxes.”

Significant Accounting policies - Additional Information (Detail) $ in Thousands		4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2017	Aug. 25, 2018 USD ($) Store	Aug. 25, 2018 USD ($) Store	Aug. 25, 2018 USD ($) Store Product Vendor shares	Aug. 26, 2017 USD ($) shares	Aug. 27, 2016 USD ($) shares	Aug. 29, 2015 USD ($)
Significant Accounting Policies [Line Items]
Number of stores with commercial sales program \| Store		4,741	4,741	4,741
Description of reporting periods				Fiscal Year: The Company’s fiscal year consists of 52 or 53 weeks ending on the last Saturday in August. Fiscal 2018, 2017 and 2016 represented 52 weeks.
Cash and cash equivalents		$ 217,824	$ 217,824	$ 217,824	$ 293,270	$ 189,734	$ 175,309
Allowances for uncollectible accounts		6,100	6,100	6,100	5,900
Unrecorded adjustment for LIFO value in excess of replacement value		452,400	452,400	452,400	414,900
Deferred rent		139,600	$ 139,600	$ 139,600	130,200
Measure of income tax benefit for uncertain income tax positions				More than 50%
Advertising expense, net of vendor promotional funds				$ 95,200	93,100	98,300
Vendor promotional funds, which reduced advertising expense				$ 25,300	$ 28,300	$ 21,400
Limited warranty period, minimum period (Days)				30 days
Products accounted for total revenues				One class of similar products accounted for approximately 12 percent of the Company’s total revenues,No other class of similar products accounted for 10 percent or more of total revenues
Products accounted for total purchases				One vendor supplied approximately 12 percent of the Company’s total purchases.no other individual vendor provided more than 10 percent of total purchases.
U.S. corporate income tax rate	35.00%		21.00%	25.90%	35.00%	35.00%
Reclassification from accumulated other comprehensive income to retained deficit				$ 14,489
Accounting Standards Update 2018-02 [Member]
Significant Accounting Policies [Line Items]
Reclassification from accumulated other comprehensive income to retained deficit		14,489
Minimum [Member]
Significant Accounting Policies [Line Items]
Amortization of intangible assets				3 years
Maximum [Member]
Significant Accounting Policies [Line Items]
Amortization of intangible assets				10 years
Stock Options [Member]
Significant Accounting Policies [Line Items]
Anti-dilutive shares excluded from the computation of earnings per share \| shares				847,279	620,025	329,900
Cash Equivalents [Member]
Significant Accounting Policies [Line Items]
Maturity period of investments				90 days or less
Settlement term of credit and debit card transaction				Less than five days
Credit and debit card receivables included within cash and cash equivalents		$ 51,000	$ 51,000	$ 51,000	$ 48,300
Product Concentration Risk [Member]
Significant Accounting Policies [Line Items]
Number of class of similar products accounted for approximately 11% of the company's total revenues \| Product				1
Product Concentration Risk [Member] \| Sales Revenue, Net [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage				12.00%
Product Concentration Risk [Member] \| Sales Revenue, Net [Member] \| Minimum [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage				10.00%
Supplier Concentration Risk [Member]
Significant Accounting Policies [Line Items]
Number of vendors accounted for approximately 10% of the company's total purchases \| Vendor				1
Supplier Concentration Risk [Member] \| Cost of Goods, Total [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage				12.00%
Supplier Concentration Risk [Member] \| Cost of Goods, Total [Member] \| Minimum [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage				10.00%
Buildings [Member] \| Minimum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives				40 years
Buildings [Member] \| Maximum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives				50 years
Building Improvements [Member] \| Minimum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives				5 years
Building Improvements [Member] \| Maximum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives				15 years
Equipment [Member] \| Minimum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives				3 years
Equipment [Member] \| Maximum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives				10 years
Stores in the United States Including Puerto Rico [Member]
Significant Accounting Policies [Line Items]
Number of stores \| Store		5,618	5,618	5,618
Brazil [Member]
Significant Accounting Policies [Line Items]
Number of stores \| Store		20	20	20
Mexico [Member]
Significant Accounting Policies [Line Items]
Number of stores \| Store		564	564	564
Non-US [Member]
Significant Accounting Policies [Line Items]
Cash and cash equivalents		$ 98,800	$ 98,800	$ 98,800	$ 148,400

Share-Based Payments - Additional Information (Detail) - USD ($)	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense related to stock options and share purchase plans	$ 43,674,000	$ 38,244,000	$ 39,825,000
Share-based compensation expense for unvested awards not yet recognized in earnings	$ 33,100,000
Weighted average period recognition of share-based compensation expense for unvested awards	1 year 9 months 25 days
Excess tax benefit			$ 63,700,000
Term of options from grant date	10 years or 10 years and one day
Exercise period of vested options after death	1 year
Restricted stock units granted under Director Compensation Program, description	Under the 2011 Program, restricted stock units are granted the first day of each calendar quarter. The number of restricted stock units granted each quarter is determined by dividing one-fourth of the amount of the annual retainer by the fair market value of the shares of common stock as of the grant date.
Outstanding options	1,706,866	1,798,055
Common stock reserved for future issuance	163,777
Weighted average grant date fair value of options granted	$ 129.12	$ 139.80	$ 156.20
Intrinsic value of options exercised	$ 123,100,000	$ 93,900,000	$ 178,000,000
Total fair value of options vested	35,700,000	34,700,000	32,200,000
Expense related to the discount on the selling of shares to employees and executives	$ 2,100,000	$ 1,800,000	$ 2,000,000
Percent of market price at which employees permitted to purchase through payroll deductions	85.00%
Maximum permitted annual purchases per employee	$ 15,000
Maximum permitted annual purchases per employee, Percent of Compensation	10.00%
Shares sold to employees under employee stock purchase plan	14,523	14,205	12,662
Shares purchased from employees at fair value	11,816	12,455	12,460
2003 Comp Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum limit of the fees a Director can elect to receive in stock	100.00%
Accrued Director fees	$ 13,600,000	$ 9,500,000
Accrued Director fees in shares	17,710	17,990
Additional shares of stock or units	0
2003 Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares for which each new non-employee director receives an option to purchase	3,000
2003 Option Plan [Member] \| Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding options	13,000	19,000
Common stock reserved for future issuance	0
Share based compensation grant date vesting period	3 years
Restated Executive Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance	238,048
Maximum permitted annual purchases per employee, Percent of Compensation	25.00%
Shares sold to employees under employee stock purchase plan	1,840	1,865	1,943
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise period of vested options after service period	30 days
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise period of vested options after service period	90 days

Share-Based Payments - Weighted Average for Key Assumptions Used in Determining Fair Value of Options Granted and Related Share-Based Compensation Expense (Detail)	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected price volatility	20.00%	18.00%	18.00%
Risk-free interest rates	1.90%	1.20%	1.50%
Weighted average expected lives (in years)	5 years 1 month 6 days	5 years 1 month 6 days	5 years 1 month 6 days
Forfeiture rate	10.00%	10.00%	10.00%
Dividend yield	0.00%	0.00%	0.00%

Share Based Payments - Stock option Activity (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Aug. 25, 2018 USD ($) $ / shares shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Outstanding, Beginning balance, Number of Shares	1,798,055
Granted, Number of Shares	284,335
Exercised, Number of Shares	(297,616)
Cancelled, Number of Shares	(77,908)
Outstanding, Ending balance, Number of Shares	1,706,866
Exercisable, Number of Shares	1,014,819
Expected to vest, Number of Shares	622,842
Available for future grants, Number of Shares	686,577
Outstanding, Beginning balance, Weighted Average Exercise Price \| $ / shares	$ 493.18
Granted, Weighted Average Exercise Price \| $ / shares	587.57
Exercised, Weighted Average Exercise Price \| $ / shares	298.02
Cancelled, Weighted Average Exercise Price \| $ / shares	672.61
Outstanding, Ending balance, Weighted Average Exercise Price \| $ / shares	534.74
Exercisable, Weighted Average Exercise Price \| $ / shares	446.07
Expected to vest, Weighted Average Exercise Price \| $ / shares	$ 664.77
Outstanding , Weighted-Average Remaining Contractual Term	6 years 21 days
Exercisable, Weighted-Average Remaining Contractual Term	4 years 8 months 23 days
Expected to vest, Weighted-Average Remaining Contractual Term	8 years 7 days
Outstanding, Aggregate Intrinsic Value \| $	$ 402,631
Exercisable, Aggregate Intrinsic Value \| $	329,352
Expected to vest, Aggregate Intrinsic Value \| $	$ 38,387

Accrued Expenses and Other - Accrued Expenses (Detail) - USD ($) $ in Thousands	Aug. 25, 2018	Aug. 26, 2017
Other Income and Expenses [Abstract]
Accrued compensation, related payroll taxes and benefits	$ 195,004	$ 181,591
Property, sales, and other taxes	106,050	98,829
Medical and casualty insurance claims (current portion)	88,761	84,756
Capital lease obligations	52,290	48,134
Accrued interest	36,902	41,047
Accrued gift cards	27,401	24,192
Accrued sales and warranty returns	20,025	19,520
Other	80,461	65,281
Total	$ 606,894	$ 563,350

Accrued Expenses and Other - Additional Information (Detail)	12 Months Ended
	Aug. 25, 2018 USD ($)
Workers' Compensation [Member]
Loss Contingencies [Line Items]
Maximum limits per claim for self-insured plan, per annum	$ 2,000,000
Employee Health [Member]
Loss Contingencies [Line Items]
Maximum limits per claim for self-insured plan, per annum	700,000
General and Products Liability [Member]
Loss Contingencies [Line Items]
Maximum limits per claim for self-insured plan, per annum	1,000,000
Vehicles [Member]
Loss Contingencies [Line Items]
Maximum limits per claim for self-insured plan, per annum	3,000,000
Property [Member]
Loss Contingencies [Line Items]
Maximum limits per claim for self-insured plan, per annum	$ 21,500,000

Income Taxes - Components of Income from Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended						4 Months Ended		12 Months Ended
	May 05, 2018	Feb. 10, 2018	Nov. 18, 2017	May 06, 2017	Feb. 11, 2017	Nov. 19, 2016	Aug. 25, 2018	Aug. 26, 2017	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Income Tax Disclosure [Abstract]
Domestic									$ 1,412,963	$ 1,737,401	$ 1,737,727
International									223,366	188,088	174,987
Income before income taxes	$ 503,807	$ 165,758	$ 429,865	$ 493,895	$ 349,771	$ 425,596	$ 536,899	$ 656,227	$ 1,636,329	$ 1,925,489	$ 1,912,714

Income Taxes - Provision for Income Tax Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Current:
Federal	$ 328,963	$ 487,492	$ 534,621
State	36,389	31,733	39,223
International	57,702	50,493	52,844
Total	423,054	569,718	626,688
Deferred:
Federal	(131,926)	72,208	48,509
State	8,167	7,769	9,453
International	(502)	(5,075)	(12,943)
Total	(124,261)	74,902	45,019
Income tax expense	$ 298,793	$ 644,620	$ 671,707

Income Taxes - Reconciliation of Provision for Income Taxes (Detail)		8 Months Ended	12 Months Ended
	Dec. 31, 2017	Aug. 25, 2018	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Income Tax Disclosure [Abstract]
Federal tax at statutory U.S. income tax rate	35.00%	21.00%	25.90%	35.00%	35.00%
State income taxes, net			1.90%	1.30%	1.60%
Transition tax			1.60%
Share-based compensation			(1.60%)	(1.40%)
Impact of tax reform			(9.60%)
Other			0.10%	(1.40%)	(1.50%)
Effective tax rate			18.30%	33.50%	35.10%

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands		8 Months Ended	12 Months Ended
	Dec. 31, 2017	Aug. 25, 2018	Aug. 31, 2019	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Operating Loss Carryforwards [Line Items]
U.S. corporate income tax rate	35.00%	21.00%		25.90%	35.00%	35.00%
Tax benefit from reduction of U.S. statutory rate				$ 119,200
Excess tax benefits from stock option exercises				31,300	$ 31,200
Tax cuts and jobs act of 2017, incomplete accounting, provisional income tax expense (benefit)				(157,300)
Tax cuts and jobs act of 2017, transition tax, provisional income tax expense				25,800
Deferred tax assets from net operating loss carryforwards		$ 30,900		30,900	30,800
Future taxable income				$ 219,100	198,200
Expiration date of NOLs start year				2019
Expiration date of NOLs end year				2038
Deferred tax assets for income tax credit carryforwards		16,300		$ 16,300	17,200
Expiration date of tax credit carryforwards start year				2023
Expiration date of tax credit carryforwards end year				2028
Operating loss carryforwards expiration period description				fiscal 2019 through 2038
Tax credit carryforwards expiration period description				fiscal 2023 through 2028
Valuation allowances on deferred tax assets		19,619		$ 19,619	13,501
Unrecognized tax benefits, if recognized would reduce effective tax rate, amount		13,500		13,500	9,900
Accrued for payment of interest and penalties associated with unrecognized tax benefits		700		700	$ 1,200
Amount of unrecognized tax benefits that could be reduced over next twelve months		$ 1,100		$ 1,100
Scenario, Plan [Member]
Operating Loss Carryforwards [Line Items]
U.S. corporate income tax rate			21.00%

Income Taxes - Significant Components of Company's Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Aug. 25, 2018	Aug. 26, 2017
Deferred tax assets:
Net operating loss and credit carryforwards	$ 47,190	$ 48,062
Accrued benefits	62,867	96,664
Other	46,375	56,052
Total deferred tax assets	156,432	200,778
Less: Valuation allowances	(19,619)	(13,501)
Net deferred tax assets	136,813	187,277
Deferred tax liabilities:
Property and equipment	(101,049)	(117,580)
Inventory	(242,138)	(333,422)
Prepaid expenses	(42,019)	(60,920)
Other	(2,191)	(11,158)
Total deferred tax liabilities	(387,397)	(523,080)
Net deferred tax liabilities	$ (250,584)	$ (335,803)

Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017
Income Tax Disclosure [Abstract]
Beginning balance	$ 22,201	$ 27,726
Additions based on tax positions related to the current year	8,184	7,089
Additions for tax positions of prior years	1,404	278
Reductions for tax positions of prior years	(482)	(6,954)
Reductions due to settlements	(1,930)	(1,964)
Reductions due to statute of limitations	(3,300)	(3,974)
Ending balance	$ 26,077	$ 22,201

Fair Value Measurements - Company's Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Aug. 25, 2018	Aug. 26, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	$ 134,676	$ 100,873
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other current assets	59,444	18,573
Other long-term assets	75,232	82,300
Total	134,676	100,873
Level 1 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other current assets	55,711	18,453
Other long-term assets	58,973	53,319
Total	114,684	71,772
Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other current assets	3,733	120
Other long-term assets	16,259	28,981
Total	$ 19,992	$ 29,101

Fair Value Measurements - Additional Information (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Aug. 25, 2018	Aug. 26, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities	$ 59,444	$ 18,573
Long-term marketable securities	$ 75,232	$ 82,300

Marketable Securities - Available-for-Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Aug. 25, 2018	Aug. 26, 2017
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	$ 135,776	$ 100,885
Available-For-Sale Marketable Securities, Gross Unrealized Gains		152
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(1,100)	(164)
Available-For-Sale Marketable Securities, Fair Value	134,676	100,873
Corporate Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	50,306	39,917
Available-For-Sale Marketable Securities, Gross Unrealized Gains		73
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(684)	(13)
Available-For-Sale Marketable Securities, Fair Value	49,622	39,977
Government Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	28,777	31,076
Available-For-Sale Marketable Securities, Gross Unrealized Gains		49
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(173)	(74)
Available-For-Sale Marketable Securities, Fair Value	28,604	31,051
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	3,248	4,850
Available-For-Sale Marketable Securities, Gross Unrealized Gains		2
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(90)	(42)
Available-For-Sale Marketable Securities, Fair Value	3,158	4,810
Asset-Backed Securities and Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	53,445	25,042
Available-For-Sale Marketable Securities, Gross Unrealized Gains		28
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(153)	(35)
Available-For-Sale Marketable Securities, Fair Value	$ 53,292	$ 25,035

Marketable Securities - Additional Information (Detail) $ in Thousands	12 Months Ended
	Aug. 25, 2018 USD ($) Securities	Aug. 26, 2017 USD ($)
Investments, Debt and Equity Securities [Abstract]
Available for sale securities debt maturity period range	Less than one year to approximately three years
Number of securities available for sale loss position \| Securities	121
Available-For-Sale Marketable Securities, Gross Unrealized Losses	$ 1,100	$ 164
Marketable securities transferred	$ 85,600	$ 85,400

Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	4 Months Ended	12 Months Ended
	Aug. 25, 2018	Aug. 25, 2018	Aug. 26, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		$ (1,428,377)	$ (1,787,538)
Balance	$ (1,520,355)	(1,520,355)	(1,428,377)
Adoption of ASU 2018-02		14,489
Accounting Standards Update 2018-02 [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Adoption of ASU 2018-02	14,489
Pension Liability [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(72,376)	(88,890)
Other comprehensive income (loss) before reclassifications		77,774	8,046
Amounts reclassified from Accumulated other comprehensive loss		7,724	8,468
Balance			(72,376)
Pension Liability [Member] \| Accounting Standards Update 2018-02 [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Adoption of ASU 2018-02		(13,122)
Net Unrealized Gain (Loss) on Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(11)	120
Other comprehensive income (loss) before reclassifications		(800)	(60)
Amounts reclassified from Accumulated other comprehensive loss		(62)	(71)
Balance	(873)	(873)	(11)
Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(6,356)	(7,747)
Amounts reclassified from Accumulated other comprehensive loss		1,690	1,391
Balance	(6,033)	(6,033)	(6,356)
Derivatives [Member] \| Accounting Standards Update 2018-02 [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Adoption of ASU 2018-02		(1,367)
Foreign Currency [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(175,814)	(211,012)
Other comprehensive income (loss) before reclassifications		(53,085)	35,198
Balance	(228,899)	(228,899)	(175,814)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(254,557)	(307,529)
Other comprehensive income (loss) before reclassifications		23,889	43,184
Amounts reclassified from Accumulated other comprehensive loss		9,352	9,788
Balance	$ (235,805)	(235,805)	$ (254,557)
Accumulated Other Comprehensive Loss [Member] \| Accounting Standards Update 2018-02 [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Adoption of ASU 2018-02		$ (14,489)

Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Parenthetical) (Detail) - Reclassified from Accumulated Other Comprehensive Income [Member] - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017
Pension Liability [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on marketable securities, taxes	$ 234	$ 38
Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net derivative activities, taxes	$ 515	$ 814

Derivative Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative losses recorded in Accumulated other comprehensive loss	$ 7.9
Net derivative losses amortized into Interest expense	$ 2.2	$ 2.2

Financing - Schedule of Debt (Detail) - USD ($) $ in Thousands	Aug. 25, 2018	Aug. 26, 2017
Debt Instrument [Line Items]
Commercial paper	$ 1,325,300	$ 1,155,100
Total debt before discounts and debt issuance costs	5,025,300	5,105,100
Less: Discounts and debt issuance costs	19,370	23,862
Long-term debt	5,005,930	5,081,238
7.125% Senior Notes due August 2018, effective interest rate of 7.28% [Member]
Debt Instrument [Line Items]
Senior notes		250,000
1.625% Senior Notes due April 2019, effective interest rate of 1.77% [Member]
Debt Instrument [Line Items]
Senior notes	250,000	250,000
4.000% Senior Notes due November 2020, effective interest rate of 4.43% [Member]
Debt Instrument [Line Items]
Senior notes	500,000	500,000
2.500% Senior Notes due April 2021, effective interest rate of 2.62% [Member]
Debt Instrument [Line Items]
Senior notes	250,000	250,000
3.700% Senior Notes due April 2022, effective interest rate of 3.85% [Member]
Debt Instrument [Line Items]
Senior notes	500,000	500,000
2.875% Senior Notes due January 2023, effective interest rate of 3.21% [Member]
Debt Instrument [Line Items]
Senior notes	300,000	300,000
3.125% Senior Notes due July 2023, effective interest rate of 3.26% [Member]
Debt Instrument [Line Items]
Senior notes	500,000	500,000
3.250% Senior Notes due April 2025, effective interest rate 3.36% [Member]
Debt Instrument [Line Items]
Senior notes	400,000	400,000
3.125% Senior Notes due April 2026, effective interest rate of 3.28% [Member]
Debt Instrument [Line Items]
Senior notes	400,000	400,000
3.750% Senior Notes due June 2027, effective interest rate of 3.83% [Member]
Debt Instrument [Line Items]
Senior notes	$ 600,000	$ 600,000

Financing - Schedule of Debt (Parenthetical) (Detail)		12 Months Ended
Financing - Schedule of Debt (Parenthetical) (Detail)	Apr. 18, 2017	Aug. 25, 2018	Aug. 26, 2017
Commercial paper, weighted average interest rate of 0% and 1.44% at August 25, 2018 and August 26, 2017, respectively [Member]
Debt Instrument [Line Items]
Weighted average interest rate of commercial paper		2.29%	1.44%
7.125% Senior Notes due August 2018, effective interest rate of 7.28% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		7.125%	7.125%
Effective interest rate		7.28%	7.28%
Debt instrument maturity, month and year		2018-08	2018-08
1.625% Senior Notes due April 2019, effective interest rate of 1.77% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		1.625%	1.625%
Effective interest rate		1.77%	1.77%
Debt instrument maturity, month and year		2019-04	2019-04
4.000% Senior Notes due November 2020, effective interest rate of 4.43% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		4.00%	4.00%
Effective interest rate		4.43%	4.43%
Debt instrument maturity, month and year		2020-11	2020-11
2.500% Senior Notes due April 2021, effective interest rate of 2.62% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		2.50%	2.50%
Effective interest rate		2.62%	2.62%
Debt instrument maturity, month and year		2021-04	2021-04
3.700% Senior Notes due April 2022, effective interest rate of 3.85% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		3.70%	3.70%
Effective interest rate		3.85%	3.85%
Debt instrument maturity, month and year		2022-04	2022-04
2.875% Senior Notes due January 2023, effective interest rate of 3.21% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		2.875%	2.875%
Effective interest rate		3.21%	3.21%
Debt instrument maturity, month and year		2023-01	2023-01
3.125% Senior Notes due July 2023, effective interest rate of 3.26% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		3.125%	3.125%
Effective interest rate		3.26%	3.26%
Debt instrument maturity, month and year		2023-07	2023-07
3.250% Senior Notes due April 2025, effective interest rate 3.36% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		3.25%	3.25%
Effective interest rate		3.36%	3.36%
Debt instrument maturity, month and year		2025-04	2025-04
3.125% Senior Notes due April 2026, effective interest rate of 3.28% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		3.125%	3.125%
Effective interest rate		3.28%	3.28%
Debt instrument maturity, month and year		2026-04	2026-04
3.750% Senior Notes due June 2027, effective interest rate of 3.83% [Member]
Debt Instrument [Line Items]
Stated interest rate percentage	3.75%	3.75%	3.75%
Effective interest rate		3.83%	3.83%
Debt instrument maturity, month and year	2027-06	2027-06	2027-06

Financing - Additional Information (Detail)			12 Months Ended
Financing - Additional Information (Detail)	Apr. 18, 2017 USD ($)	Apr. 21, 2016 USD ($)	Aug. 25, 2018 USD ($)	Aug. 26, 2017 USD ($)	Aug. 27, 2016 USD ($)
Debt Instrument [Line Items]
Remaining borrowing capacity under revolving credit facility			$ 1,997,000,000
Amount available under credit facility			$ 2,000,000,000
Credit Agreement description			Less than one year
Line of credit facility covenant terms			The Revolving Credit Agreement requires that the Company's consolidated interest coverage ratio as of the last day of each quarter shall be no less than 2.5:1. This ratio is defined as the ratio of (i) consolidated earnings before interest, taxes and rents to (ii) consolidated interest expense plus consolidated rents. The Company's consolidated interest coverage ratio as of August 25, 2018 was 5.8:1.
Minimum debt covenant interest coverage ratio to be maintained quarterly			2.5
Debt covenant interest coverage ratio			5.8
Proceeds from issuance of debt				$ 600,000,000	$ 650,000,000
Fair value of the Company's debt			$ 4,948,000,000	5,171,000,000
Excess (shortfall) of fair value of debt over (from) carrying value			57,500,000	90,300,000
Other Letters Of Credit [Member]
Debt Instrument [Line Items]
Borrowings, outstanding			32,500,000
Third Amended and Restated Credit Agreement [Member]
Debt Instrument [Line Items]
Amount available under credit facility			1,600,000,000
New 364-Day Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Borrowings, outstanding			0
Master Extension Agreement [Member]
Debt Instrument [Line Items]
Amount available under credit facility			2,000,000,000
Revolving credit agreement, available additional borrowing capacity			400,000,000
Maximum amount available under credit facility			$ 2,400,000,000
Credit facility expiration date			Nov. 18, 2022
Credit Agreement description			Under the Revolving Credit Agreement, the Company may borrow funds consisting of Eurodollar loans, base rate loans or a combination of both. Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable percentage, as defined in the Revolving Credit Agreement, depending upon the Company’s senior, unsecured, (non-credit enhanced) long-term debt ratings. Interest accrues on base rate loans as defined in the Revolving Credit Agreement.
Extended expiration of credit facility			1 year
Letters of credit, outstanding			$ 3,300,000
Letters of Credit [Member]
Debt Instrument [Line Items]
Maximum amount available under credit facility			75,000,000
Borrowings, outstanding			71,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Letters of credit, outstanding			3,300,000
Borrowings, outstanding			0
3.750% Senior Notes due June 2027, effective interest rate of 3.83% [Member]
Debt Instrument [Line Items]
Long-term debt			$ 600,000,000	$ 600,000,000
Stated interest rate percentage	3.75%		3.75%	3.75%
Debt instrument maturity, month and year	2027-06		2027-06	2027-06
Proceeds from issuance of debt	$ 600,000,000
1.625% Senior Notes due April 2019, effective interest rate of 1.77% [Member]
Debt Instrument [Line Items]
Long-term debt			$ 250,000,000	$ 250,000,000
Stated interest rate percentage			1.625%	1.625%
Debt instrument maturity, month and year			2019-04	2019-04
3.125% Senior Notes Due April 2026 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		3.125%
Debt instrument maturity, month and year		2026-04
Proceeds from issuance of debt		$ 400,000,000
1.625% Senior Notes due April 2019 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		1.625%
Debt instrument maturity, month and year		2019-04
Proceeds from issuance of debt		$ 250,000,000

Financing - Scheduled Maturities of Debt (Detail) - USD ($) $ in Thousands	Aug. 25, 2018	Aug. 26, 2017
Debt Disclosure [Abstract]
2019	$ 1,575,300
2020	0
2021	750,000
2022	500,000
2023	800,000
Thereafter	1,400,000
Subtotal	5,025,300
Discount and debt issuance costs	19,370	$ 23,862
Long-term debt	$ 5,005,930	$ 5,081,238

Interest Expense - Net Interest Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Other Income and Expenses [Abstract]
Interest expense	$ 181,668	$ 159,329	$ 150,961
Interest income	(5,636)	(3,502)	(2,371)
Capitalized interest	(1,505)	(1,247)	(909)
Net Interest Expense	$ 174,527	$ 154,580	$ 147,681

Stock Repurchase Program - Additional Information (Detail) - USD ($) shares in Thousands		2 Months Ended	12 Months Ended			248 Months Ended
	Sep. 26, 2018	Oct. 23, 2018	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016	Aug. 25, 2018	Mar. 20, 2018
Equity, Class of Treasury Stock [Line Items]
Stock repurchased cumulative, shares			2,398	1,495	1,903	144,700
Purchase of treasury stock			$ 1,592,013,000	$ 1,071,649,000	$ 1,452,462,000	$ 19,418,000,000
Stock repurchase authorized amended value				$ 18,650,000,000			$ 19,650,000,000
Share of treasury stock retired			1,512	1,804
Subsequent Events [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchased cumulative, shares		346,979
Purchase of treasury stock		$ 263,400,000
Stock repurchase authorized amended value	$ 20,900,000,000
Increase in authorization of stock repurchase, value	$ 1,250,000,000
Remaining value authorized for share repurchases		$ 1,220,000,000
Retained Deficit [Member]
Equity, Class of Treasury Stock [Line Items]
Retirement of treasury shares			$ (918,462,000)	$ (1,321,070,000)	(1,424,455,000)
Additional Paid-In Capital [Member]
Equity, Class of Treasury Stock [Line Items]
Retirement of treasury shares			$ (60,500,000)	$ (64,943,000)	$ (67,023,000)

Stock Repurchase Program - Summarize Company's Share Repurchase Activity (Detail) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended			248 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016	Aug. 25, 2018
Equity [Abstract]
Amount	$ 1,592,013	$ 1,071,649	$ 1,452,462
Shares	2,398	1,495	1,903	144,700

Pension and Savings Plans - Additional Information (Detail) - USD ($)	4 Months Ended	12 Months Ended
	Aug. 25, 2018	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Retirement Benefits [Abstract]
Consecutive years of highest compensation used to determine defined benefit pension plan benefits		5 years
Annual contributions by the Company to pension plans	$ 11,400,000	$ 11,596,000	$ 17,761,000
Termination settlement costs	130,300,000
Periodic pension benefit expense	$ 0
Percentage of company matching retirement savings plan contributions that vest immediately		100.00%
Percentage of savings option up to qualified earnings		25.00%
Annual contribution by employer towards 401(k) Plan		$ 23,100,000	$ 21,000,000	$ 19,700,000

Pension and Savings Plans - Plan's Funded Status and Amounts Recognized in Company's Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	4 Months Ended	12 Months Ended
	Aug. 25, 2018	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Change in Projected Benefit Obligation:
Projected benefit obligation at beginning of year		$ 314,724	$ 328,511
Interest cost		10,356	10,335	$ 11,272
Actuarial (gains) losses		(676)	(8,746)
Annuities purchased		(157,589)
Benefits and settlements paid		(166,815)	(15,376)
Benefit obligations at end of year			314,724	328,511
Change in Plan Assets:
Fair value of plan assets at beginning of year		316,267	289,386
Actual return on plan assets		(3,428)	24,496
Employer contributions	$ 11,400	11,596	17,761
Annuities purchased		(157,589)
Benefits and settlements paid		(166,815)	(15,376)
Asset reversion upon termination		$ (31)
Fair value of plan assets at end of year			316,267	$ 289,386
Amount Recognized in the Statement of Financial Position:
Current liabilities			(283)
Long-term assets			8,686
Long-term liabilities			(6,860)
Net amount recognized			1,543
Amount Recognized in Accumulated Other Comprehensive Loss and not yet reflected in Net Periodic Benefit Cost:
Net actuarial loss			(118,889)
Accumulated other comprehensive loss			$ (118,889)

Pension and Savings Plans - Net Periodic Benefit Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Retirement Benefits [Abstract]
Interest cost	$ 10,356	$ 10,335	$ 11,272
Expected return on plan assets	(18,997)	(20,056)	(16,512)
Recognized net actuarial losses	10,736	13,873	10,506
Settlement loss	130,263
Net periodic benefit expense	$ 132,358	$ 4,152	$ 5,266

Pension and Savings Plans - Actuarial Assumptions Used in Determining Projected Benefit Obligation (Detail)	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Retirement Benefits [Abstract]
Discount rate to determine benefit obligation	3.86%	3.86%	3.72%
Discount rate to determine net interest cost	3.36%	3.21%	3.90%
Expected long-term rate of return on plan assets	6.00%	7.00%	7.00%

Sale of Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Feb. 10, 2018	Aug. 25, 2018
Business Acquisition [Line Items]
Asset impairment charges		$ 193,162
Auto Anything and IMC Businesses [Member]
Business Acquisition [Line Items]
Asset impairment charges	$ 193,162
IMC Businesses [Member] \| Auto Parts Locations [Member]
Business Acquisition [Line Items]
Asset impairment charges		93,600
Auto Anything [Member] \| Other [Member]
Business Acquisition [Line Items]
Asset impairment charges		$ 99,600

Goodwill and Intangibles - Schedule of Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017
Goodwill [Line Items]
Goodwill, Beginning balance	$ 391,887	$ 391,887
Goodwill added through acquisition	0	0
Goodwill adjustments	(89,242)
Goodwill, Ending balance	302,645	391,887
Auto Parts Locations [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	326,703	326,703
Goodwill added through acquisition	0	0
Goodwill adjustments	(24,058)
Goodwill, Ending balance	302,645	326,703
Other [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	65,184	65,184
Goodwill added through acquisition	0	0
Goodwill adjustments	$ (65,184)
Goodwill, Ending balance		$ 65,184

Goodwill and Intangibles - Additional Information (Detail) - USD ($)	4 Months Ended			12 Months Ended
	Aug. 25, 2018	Feb. 10, 2018	Aug. 26, 2017	Aug. 25, 2018	Aug. 26, 2017
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Goodwill impairment charge	$ 0		$ 0
Accumulated goodwill impairment	107,500,000		18,300,000	$ 107,500,000	$ 18,300,000
Amortization expense of intangible assets				5,100,000	8,500,000
Trade Name [Member] \| AutoAnything's and Interamerican Motor Corporation [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Impairment charge		$ 26,900,000
Accumulated impairment	$ 31,000,000		$ 4,100,000	$ 31,000,000	$ 4,100,000

Goodwill and Intangibles - Schedule of Carrying Amounts of Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	$ 30,246	$ 61,546
Finite Lived, Accumulated Amortization	(20,457)	(35,947)
Finite Lived, Net Carrying Amount	9,789	25,599
Total intangible assets other than goodwill, Net Carrying Amount	$ 9,789	52,499
Minimum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	3 years
Maximum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	10 years
Technology [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	$ 870	10,570
Finite Lived, Accumulated Amortization	$ (870)	(9,994)
Finite Lived, Net Carrying Amount		$ 576
Technology [Member] \| Minimum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	3 years	3 years
Technology [Member] \| Maximum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years	5 years
Noncompete Agreements [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life		5 years
Finite Lived, Gross Carrying Amount		$ 1,300
Finite Lived, Accumulated Amortization		(1,223)
Finite Lived, Net Carrying Amount		77
Customer Relationships [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	$ 29,376	49,676
Finite Lived, Accumulated Amortization	(19,587)	(24,730)
Finite Lived, Net Carrying Amount	$ 9,789	$ 24,946
Customer Relationships [Member] \| Minimum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	3 years	3 years
Customer Relationships [Member] \| Maximum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	10 years	10 years
Trade Name [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Non-amortizing intangible asset - Trade name, Net Carrying Amount		$ 26,900

Goodwill and Intangibles - Schedule of Future Amortization Expense for Finite Lived Intangible Assets (Detail) - USD ($) $ in Thousands	Aug. 25, 2018	Aug. 26, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
2019	$ 4,173
2020	4,173
2021	1,443
Thereafter	0
Finite Lived, Net Carrying Amount	$ 9,789	$ 25,599

Leases - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Leases [Abstract]
Rental expense	$ 315,600	$ 302,900	$ 280,500
Deferred rent	139,600	130,200
Capital lease assets	156,800	152,000
Capital lease, accumulated amortization	79,900	70,200
Capital lease obligations	154,300	150,500
Current portion of capital lease obligations	$ 52,290	$ 48,134

Leases - Future Minimum Annual Rental Commitments Under Non-Cancelable Operating Leases and Capital Leases (Detail) $ in Thousands	Aug. 25, 2018 USD ($)
Leases [Abstract]
2019	$ 300,866
2020	289,007
2021	267,298
2022	244,786
2023	215,237
Thereafter	823,969
Total minimum payments required	2,141,163
2019	52,290
2020	50,777
2021	38,290
2022	21,211
2023	3,118
Thereafter	0
Total minimum payments required	165,686
Less: Interest	(11,383)
Present value of minimum capital lease payments	$ 154,303

Commitments and Contingencies - Additional Information (Detail) $ in Millions	12 Months Ended
	Aug. 25, 2018 USD ($)
Loss Contingencies [Line Items]
Commitment for construction	$ 41.3
Surety bonds	$ 23.6
The period of time before expiration of standby letters of credit and surety bonds	Less than one year
Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Borrowings, outstanding	$ 106.8

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

Segment Reporting - Additional Information (Detail)	12 Months Ended
Segment Reporting - Additional Information (Detail)	Aug. 25, 2018 Item Location
Segment Reporting [Abstract]
Number of reportable segments \| Item	1
Number of automotive parts and accessories locations in the United States, Puerto Rico, Mexico, and Brazil \| Location	6,202

Segment Reporting - Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended						4 Months Ended		12 Months Ended
	May 05, 2018	Feb. 10, 2018	Nov. 18, 2017	May 06, 2017	Feb. 11, 2017	Nov. 19, 2016	Aug. 25, 2018	Aug. 26, 2017	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Segment Reporting Information [Line Items]
Net sales	$ 2,660,152	$ 2,413,026	$ 2,589,131	$ 2,619,007	$ 2,289,219	$ 2,467,845	$ 3,558,769	$ 3,512,605	$ 11,221,077	$ 10,888,676	$ 10,635,676
Gross profit	1,422,974	1,277,046	1,365,848	1,378,418	1,205,536	1,301,542	1,907,879	1,854,125	5,973,746	5,739,620	5,608,736
Operating, selling, general and administrative expenses									(4,162,890)	(3,659,551)	(3,548,341)
Interest expense, net									(174,527)	(154,580)	(147,681)
Income before income taxes	503,807	165,758	429,865	493,895	349,771	425,596	536,899	656,227	1,636,329	1,925,489	1,912,714
Assets							9,346,980	9,259,781	9,346,980	9,259,781	8,599,787
Capital Expenditures									521,788	553,832	488,791
Net sales	$ 2,660,152	$ 2,413,026	$ 2,589,131	$ 2,619,007	$ 2,289,219	$ 2,467,845	3,558,769	3,512,605	11,221,077	10,888,676	10,635,676
Auto Parts Locations [Member]
Segment Reporting Information [Line Items]
Net sales									10,951,498	10,523,272	10,261,112
Gross profit									5,805,561	5,544,494	5,410,477
Assets							9,231,021	8,964,371	9,231,021	8,964,371	8,351,883
Capital Expenditures									499,762	533,304	470,631
Net sales									10,951,498	10,523,272	10,261,112
Auto Parts Locations [Member] \| Failure [Member]
Segment Reporting Information [Line Items]
Net sales									5,338,890	5,100,702	4,913,423
Net sales									5,338,890	5,100,702	4,913,423
Auto Parts Locations [Member] \| Maintenance Items [Member]
Segment Reporting Information [Line Items]
Net sales									3,914,546	3,774,386	3,721,240
Net sales									3,914,546	3,774,386	3,721,240
Auto Parts Locations [Member] \| Discretionary [Member]
Segment Reporting Information [Line Items]
Net sales									1,698,062	1,648,184	1,626,449
Net sales									1,698,062	1,648,184	1,626,449
Other [Member]
Segment Reporting Information [Line Items]
Net sales									269,579	365,404	374,564
Gross profit									168,185	195,126	198,259
Assets							$ 115,959	$ 295,410	115,959	295,410	247,904
Capital Expenditures									22,026	20,528	18,160
Net sales									$ 269,579	$ 365,404	$ 374,564

Segment Reporting - Segment Results (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended	4 Months Ended	12 Months Ended
	Feb. 10, 2018	Aug. 25, 2018	Aug. 25, 2018
Segment Reporting Information [Line Items]
Termination settlement costs		$ 130,300
Asset impairment charges			$ 193,162
Operating, Selling, General and Administrative Expenses [Member]
Segment Reporting Information [Line Items]
Termination settlement costs			130,300
Auto Anything and IMC Businesses [Member]
Segment Reporting Information [Line Items]
Asset impairment charges	$ 193,162
Auto Anything and IMC Businesses [Member] \| Operating, Selling, General and Administrative Expenses [Member]
Segment Reporting Information [Line Items]
Asset impairment charges			$ 193,162

Quarterly Summary - Quarterly Summary (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						4 Months Ended		12 Months Ended
	May 05, 2018	Feb. 10, 2018	Nov. 18, 2017	May 06, 2017	Feb. 11, 2017	Nov. 19, 2016	Aug. 25, 2018	Aug. 26, 2017	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 2,660,152	$ 2,413,026	$ 2,589,131	$ 2,619,007	$ 2,289,219	$ 2,467,845	$ 3,558,769	$ 3,512,605	$ 11,221,077	$ 10,888,676	$ 10,635,676
Gross profit	1,422,974	1,277,046	1,365,848	1,378,418	1,205,536	1,301,542	1,907,879	1,854,125	5,973,746	5,739,620	5,608,736
Operating profit	545,765	205,098	468,754	529,570	383,969	458,902	591,239	707,628	1,810,856	2,080,069	2,060,395
Income before income taxes	503,807	165,758	429,865	493,895	349,771	425,596	536,899	656,227	1,636,329	1,925,489	1,912,714
Net income	$ 366,721	$ 289,530	$ 281,003	$ 331,700	$ 237,145	$ 278,125	$ 400,282	$ 433,899	$ 1,337,536	$ 1,280,869	$ 1,241,007
Basic earnings per share	$ 13.62	$ 10.58	$ 10.17	$ 11.70	$ 8.28	$ 9.61	$ 15.27	$ 15.52	$ 49.59	$ 45.05	$ 41.52
Diluted earnings per share	$ 13.42	$ 10.38	$ 10.00	$ 11.44	$ 8.08	$ 9.36	$ 15.02	$ 15.27	$ 48.77	$ 44.07	$ 40.70

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Quarterly Summary - Quarterly Summary (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended	4 Months Ended	12 Months Ended
	Feb. 10, 2018	Aug. 25, 2018	Aug. 25, 2018
Selected Quarterly Financial Information [Line Items]
Asset impairment charges			$ 193,162
Termination settlement costs		$ 130,300
Auto Anything and IMC Businesses [Member]
Selected Quarterly Financial Information [Line Items]
Asset impairment charges	$ 193,162