Debt (Schedule Of Short-Term Debt) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Aug. 28, 2011	Aug. 29, 2010
Canada [Member]
Maximum Amount Outstanding During the Fiscal Year	$ 6	$ 1
Average Amount Outstanding During the Fiscal Year	4	1
Weighted Average Interest Rate During the Fiscal Year	3.00%	2.75%
Japan [Member]
Maximum Amount Outstanding During the Fiscal Year	70	64
Average Amount Outstanding During the Fiscal Year	20	39
Weighted Average Interest Rate During the Fiscal Year	0.58%	0.63%
United Kingdom [Member]
Maximum Amount Outstanding During the Fiscal Year	16	5
Average Amount Outstanding During the Fiscal Year	$ 4	$ 2
Weighted Average Interest Rate During the Fiscal Year	1.50%	1.50%