Income Taxes (Details 3) (USD $) In Millions, unless otherwise specified	Mar. 03, 2012	Feb. 26, 2011
Components of deferred tax aassets and liabilities
Accrued property expenses	$ 146	$ 154
Other accrued expenses	108	122
Deferred revenue	128	141
Compensation and benefits	103	86
Stock-based compensation	157	137
Loss and credit carryforwards	310	303
Other	121	125
Total deferred tax assets	1,073	1,068
Valuation allowance	(204)	(212)
Total deferred tax assets after valuation allowance	869	856
Property and equipment	(376)	(316)
Convertible debt	0	(79)
Goodwill and intangibles	(118)	(123)
Inventory	(85)	(25)
Other	(27)	(22)
Total deferred tax liabilities	(606)	(565)
Net deferred tax assets	263	291
Other current assets	226	261
Other assets	53	98
Other long-term liabilities	(16)	(68)
Net deferred tax assets	$ 263	$ 291