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