Income Taxes (Gross Unrecognized Tax Benefits) (Details) (USD $) In Millions	12 Months Ended
Aug. 28, 2011	Aug. 29, 2010
Income Taxes
Gross unrecognized tax benefit at beginning of year	$ 83	$ 80
Gross increases - current year tax positions	21	29
Gross increases - tax positions in prior years	10	4
Gross decreases - tax positions in prior years	(6)	(1)
Settlements	(1)	(27)
Lapse of statute of limitations	(1)	(2)
Gross unrecognized tax benefit at end of year	$ 106	$ 83

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.

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