Fair Value Measurements - Fair and Carrying Value (Details) (USD $) In Millions	Jun. 02, 2011	Sep. 02, 2010
Convertible Senior Notes Due 2013 [Member] | Level 2 [Member] | Fair Value [Member]
Fair value disclosure [Line Items]
Fair value of convertible debt instruments	$ 276
Convertible Senior Notes Due 2027 [Member] | Level 2 [Member] | Fair Value [Member]
Fair value disclosure [Line Items]
Fair value of convertible debt instruments	189
Fair Value [Member]
Fair value disclosure [Line Items]
Fair value of convertible debt instruments	1,444	1,494
Other debt instruments	510	1,071
Carrying Value [Member]
Fair value disclosure [Line Items]
Fair value of convertible debt instruments	1,076	1,288
Other debt instruments	$ 496	$ 1,072