Accounting Policies - Goodwill and Acquired Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
Aug. 28, 2022	Aug. 29, 2021	Aug. 30, 2020
Goodwill [Line Items]
Goodwill	$ 993	$ 996	$ 988
Goodwill, Foreign Currency Translation Gain (Loss)		8
Goodwill, Period Increase (Decrease)	(3)
Operating Segments \| UNITED STATES
Goodwill [Line Items]
Goodwill	953	953	947
Goodwill, Purchase Accounting Adjustments	0	6
Operating Segments \| CANADA
Goodwill [Line Items]
Goodwill	27	28	27
Goodwill, Foreign Currency Translation Gain (Loss)	(1)	1
Operating Segments \| Other International Operations
Goodwill [Line Items]
Goodwill	13	15	$ 14
Goodwill, Foreign Currency Translation Gain (Loss)	$ (2)	$ 1

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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