Goodwill and Intangible Assets - Change in Company's Goodwill and Intangible Assets (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	Jun. 15, 2013	Feb. 23, 2013
Goodwill [Line Items]
Finite-Lived intangible Assets, Accumulated Amortization	$ 73	$ 67
Favorable Operating Leases, Customer Lists, Customer Relationships and Other [Member]
Goodwill [Line Items]
Finite-Lived intangible Assets, Accumulated Amortization	71	65
Non-Compete Agreements [Member]
Goodwill [Line Items]
Finite-Lived intangible Assets, Accumulated Amortization	$ 2	$ 2