Summary of Significant Accounting Policies - Changes in the Company's Self-Insurance Liabilities (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended	52 Months Ended
Feb. 23, 2013	Feb. 25, 2012	Feb. 22, 2014
Accounting Policies [Abstract]
Beginning balance	$ 93	$ 96	$ 97
Expense	31	22	39
Claim payments	(27)	(25)	(33)
Ending balance	97	93	103
Less current portion	(27)	(26)	(33)
Long-term portion	$ 70	$ 67	$ 70

Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.24)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_SelfInsuranceReserve
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant