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Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Nov. 29, 2014	Nov. 30, 2013	Nov. 29, 2014	Nov. 30, 2013
Income Tax [Line Items]
Discrete tax benefit	$ 3,000,000svu_DiscreteTaxBenefit	$ 0svu_DiscreteTaxBenefit	$ 7,000,000svu_DiscreteTaxBenefit	$ 2,000,000svu_DiscreteTaxBenefit
Discrete tax expense			2,000,000svu_DiscreteTaxExpense	2,000,000svu_DiscreteTaxExpense
Number of months within which company does not anticipate significant change in unrecognized tax benefits			12 months
Discrete tax benefits attributable to discontinued operations	69,000,000
Minimum [Member]
Income Tax [Line Items]
Unrecognized tax benefits increased			5,000,000
Maximum [Member]
Income Tax [Line Items]
Unrecognized tax benefits increased			$ 81,000,000

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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