Summary of Significant Accounting Policies - Additional Information (Details) $ in Millions		12 Months Ended
	Sep. 02, 2019 USD ($)	Aug. 30, 2020 USD ($) warehouse states	Sep. 01, 2019 USD ($)	Sep. 02, 2018 USD ($)	Feb. 27, 2020
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		795
Credit and debit card receivables, at carrying value		$ 1,636	$ 1,434
Bank Overdrafts		810	673
Accrued insurance		1,188	1,222
Reduction in sales		$ 1,707	1,537	$ 1,394
Minimum number of days of employment to qualify for retirement plan		90 days
Defined contribution plan, cost recognized		$ 676	614	578
Land		6,696	6,417
Buildings and improvements		17,982	17,136
Equipment and fixtures		8,749	7,801
Construction in progress		1,276	1,272
Property, Plant and Equipment, Gross		34,703	32,626
Accumulated Depreciation and Amortization		(12,896)	(11,736)
Property, Plant and Equipment, Net		21,807	20,890	19,681
Goodwill		988	53
Goodwill, Foreign Currency Translation Gain (Loss)		1
Goodwill, Acquired During Period		$ 934
Equity Method Investment, Ownership Percentage					35.00%
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification (Deprecated 2020-01-31)	$ 2,632
UNITED STATES
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		552
Number of states in country | states		45
UNITED STATES | Operating Segments
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Net		$ 14,916	14,367	13,353
Goodwill		947	13
Goodwill, Foreign Currency Translation Gain (Loss)		0
Goodwill, Acquired During Period		$ 934
CANADA
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		101
CANADA | Operating Segments
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Net		$ 2,172	2,044	1,900
Goodwill		27	27
Goodwill, Foreign Currency Translation Gain (Loss)		0
Goodwill, Acquired During Period		$ 0
MEXICO
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		39
UNITED KINGDOM
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		29
JAPAN
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		27
KOREA
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		16
TAIWAN
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		13
AUSTRALIA
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		12
SPAIN
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		3
ICELAND
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		1
FRANCE
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		1
CHINA
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated | warehouse		1
Other International Operations | Operating Segments
Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Net		$ 4,719	4,479	$ 4,428
Goodwill		14	13
Goodwill, Foreign Currency Translation Gain (Loss)		1
Goodwill, Acquired During Period		$ 0
Employees [Member]
Summary Of Significant Accounting Policies [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period		5 years
Forward foreign exchange contracts
Summary Of Significant Accounting Policies [Line Items]
Derivative, Notional Amount		$ 1,036	704
Membership [Member]
Summary Of Significant Accounting Policies [Line Items]
Deferred Revenue		$ 1,851	$ 1,711