Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended									6 Months Ended		6 Months Ended
	Sep. 10, 2011 Fuel_Centers	Sep. 11, 2010	Sep. 10, 2011 Retail food [Member]	Sep. 10, 2011 Accumulated impairment losses [Member]	Sep. 10, 2011 Consolidated Retail Food [Member]	Sep. 10, 2011 Independent Business [Member]	Sep. 10, 2011 Trademarks and Tradenames - Indefinite lived [Member]	Sep. 10, 2011 Favorable operating leases, customer lists, customer relationships and other [Member]	Feb. 26, 2011 Favorable operating leases, customer lists, customer relationships and other [Member]	Sep. 10, 2011 Noncompete Agreements [Member]	Feb. 26, 2011 Noncompete Agreements [Member]	Sep. 10, 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	(17)		(17)	0	(17)	0
Goodwill, Ending Balance	1,967		6,099	(4,842)	1,257	710
Indefinite-lived, Intangible assets:
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:
Finite-Lived Intangible Assets, Beginning Balance								663		11
Impairment of Intangible Assets, Finite-lived								0		0
Finite Lived Intangible Assets Other Net Adjustments								(5)		0
Finite-Lived Intangible Assets, Ending Balance								665		12
Intangible assets:
Intangible assets excluding amortization, Beginning Balance	1,454
Addition to finite lived intangible assets	8							7		1
Amortization of Intangible Assets	31	31										(31)
Impairment	0
Intangible assets other adjustments												3
Intangible assets excluding amortization, Ending Balance	1,457
Intangible Assets Other Net Adjustments	(5)
Accumulated amortization												(312)	(284)
Intangible assets, Beginning Balance	1,170
Intangible assets, Ending Balance	1,145
Additional Goodwill and Intangible Assets (Textual) [Abstract]
Finite-Lived Intangible Assets, Accumulated Amortization								307	280	4	4
Goodwill And Intangible Assets (Textual) [Abstract]
Amortization Expense of intangible assets	31	31										(31)
Future amortization expense, Year One	35
Future amortization expense, Year Two	35
Future amortization expense, Year Three	35
Future amortization expense, Year Four	35
Future amortization expense, Year Five	35
Number of fuel centers for sale	107
Reclassification of goodwill	17
Reclassification of property, plant and equipment	$ 76