Goodwill and Intangible Assets, Net - Change in Company's Goodwill and Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended							6 Months Ended
	Sep. 06, 2014	Sep. 07, 2013	Sep. 06, 2014 Independent Business [Member]	Sep. 06, 2014 Save-A-Lot [Member]	Sep. 06, 2014 Retail Food goodwill [Member]	Sep. 06, 2014 Trademarks and Tradenames - Indefinite Useful Lives [Member]	Feb. 22, 2014 Trademarks and Tradenames - Indefinite Useful Lives [Member]	Sep. 06, 2014 Customer lists, customer relationships, favorable operating leases and other [Member]	Sep. 06, 2014 Non-Compete Agreements [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 847		$ 710	$ 137
Additions	15			1	14
Goodwill, Ending Balance	862		710	138	14
Indefinite-lived Intangible Assets, Beginning Balance						9	9
Indefinite-lived Intangible Assets, Ending Balance						9	9
Finite-Lived Intangible Assets, Beginning Balance								111	3
Addition to Finite-Lived Intangible Assets								10
Finite-Lived Intangible Assets Other Net Adjustments
Finite-Lived Intangible Assets, Ending Balance								121	3
Intangible assets excluding amortization, Beginning Balance	123
Addition to finite-lived intangible assets	10
Intangible assets other adjustments
Intangible assets excluding amortization, Ending Balance	133
Accumulated amortization, Beginning balance	(80)							(78)	(2)
Amortization expense of intangible assets	(5)	(4)
Accumulated amortization, Ending Balance	(85)							(83)	(2)
Intangible assets, Beginning Balance	43
Intangible assets, Ending Balance	$ 48