Goodwill and Intangible Assets (Details) (USD $) In Millions	3 Months Ended									3 Months Ended		3 Months Ended
	Jun. 18, 2011	Jun. 19, 2010	Jun. 18, 2011 Retail food [Member]	Jun. 18, 2011 Accumulated impairment losses [Member]	Jun. 18, 2011 Consolidated Retail Food [Member]	Jun. 18, 2011 Independent Business [Member]	Jun. 18, 2011 Trademarks and Tradenames - Indefinite lived [Member]	Jun. 18, 2011 Favorable operating leases, customer lists, customer relationships and other [Member]	Feb. 26, 2011 Favorable operating leases, customer lists, customer relationships and other [Member]	Jun. 18, 2011 Noncompete Agreements [Member]	Feb. 26, 2011 Noncompete Agreements [Member]	Jun. 18, 2011 Accumulated amortization [Member]	Feb. 26, 2011 Accumulated amortization [Member]
Goodwill:
Goodwill, Beginning Balance	$ 1,984		$ 6,116	$ (4,842)	$ 1,274	$ 710
Additions	0		0	0	0	0
Impairments	0		0	0	0	0
Other net adjustments	0		0	0	0	0
Goodwill, Ending Balance	1,984		6,116	(4,842)	1,274	710
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-lived Intangible Assets, Beginning Balance							780
Additions							0
Impairments							0
Other Net Adjustments							0
Indefinite-lived Intangible Assets, Ending Balance							780
Finite-Lived Intangible Assets, Net [Abstract]
Finite-Lived Intangible Assets, Beginning Balance								663		11
Impairment of Intangible Assets, Finite-lived								0		0
Finite Lived Intangible Assets Other Net Adjustments								(2)		0
Finite-Lived Intangible Assets, Ending Balance								664		11
Intangible assets:
Intangible assets excluding amortization, Beginning Balance	1,454
Addition to finite lived intangible assets	3							3		0
Amortization of Intangible Assets	18	18										(18)
Impairment	0
Intangible assets other adjustments												2
Intangible assets excluding amortization, Ending Balance	1,455
Intangible Assets Other Net Adjustments	(2)
Accumulated amortization												(300)	(284)
Intangible assets, Beginning Balance	1,170
Intangible assets, Ending Balance	1,155
Goodwill And Intangible Assets (Textuals) [Abstract]
Amortization Expense of intangible assets	18	18										(18)
Future amortization expense, Year One	36
Future amortization expense, Year Two	36
Future amortization expense, Year Three	36
Future amortization expense, Year Four	36
Future amortization expense, Year Five	36
Finite-Lived Intangible Assets, Accumulated Amortization								$ 296	$ 280	$ 4	$ 4