Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Nov. 29, 2014	Nov. 30, 2013	Nov. 29, 2014	Nov. 30, 2013
Statement of Comprehensive Income [Abstract]
Net earnings including noncontrolling interests	$ 81us-gaap_ProfitLoss	$ 32us-gaap_ProfitLoss	$ 159us-gaap_ProfitLoss	$ 161us-gaap_ProfitLoss
Other comprehensive (loss) income:
Recognition of pension and other postretirement benefit obligations, net of tax of $(27), $9, $(17) and $28, respectively	(98)	13	(80)	44
Comprehensive (loss) income including noncontrolling interests	(17)	45	79	205
Less comprehensive income attributable to noncontrolling interests	(2)	(1)	(6)	(5)
Comprehensive (loss) income attributable to SUPERVALU INC.	$ (19)us-gaap_ComprehensiveIncomeNetOfTax	$ 44us-gaap_ComprehensiveIncomeNetOfTax	$ 73us-gaap_ComprehensiveIncomeNetOfTax	$ 200us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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