Discontinued Operations and Divestitures - Summary of Company's Operating Results and Certain Other Directly Attributable Expenses (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 22, 2014	Feb. 23, 2013	Feb. 25, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of tax	$ 176	$ (1,203)	$ (930)
NAI Banners [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	1,235	17,230	18,764
Income (loss) before income taxes from discontinued operations	121	(1,238)	(876)
Income tax (benefit) provision	(55)	(35)	54
Income (loss) from discontinued operations, net of tax	$ 176	$ (1,203)	$ (930)