Debt - Extinguishment of Debt (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Dec. 02, 2010	Mar. 01, 2012	Mar. 03, 2011
Extinguishment of Debt [Line Items]
Loss on extinguishment of debt	$ 111	$ 0	$ 111
Repayments of convertible debt		101	812
Convertible Senior Notes Due 2014 [Member] | Exchanged [Member]
Extinguishment of Debt [Line Items]
Debt instrument, face value	175
Loss on extinguishment of debt	15
Convertible Senior Notes Due 2014 [Member] | Repurchased [Member]
Extinguishment of Debt [Line Items]
Debt instrument, face value	176
Loss on extinguishment of debt	17
Repayments of convertible debt	171
Convertible Senior Notes Due 2013 [Member] | Repurchased [Member]
Extinguishment of Debt [Line Items]
Debt instrument, face value	91
Loss on extinguishment of debt	79
Repayments of convertible debt	$ 166