Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 03, 2016	Dec. 05, 2015	Dec. 03, 2016	Dec. 05, 2015
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	$ 49	$ 15	$ 55	$ 29
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	1	0	1	(1)
Net (loss) earnings including noncontrolling interests	(25)	35	54	132
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	102	27	113	50
Other comprehensive income:
Recognition of interest rate swap cash flow hedge(2)	2	0	2	(2)
Total other comprehensive income	104	27	115	48
Comprehensive income including noncontrolling interests	79	62	169	180
Less net earnings attributable to noncontrolling interests	(1)	(1)	(3)	(6)
Comprehensive income attributable to SUPERVALU INC.	$ 78	$ 61	$ 166	174
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Other comprehensive income:
Total other comprehensive income				(2)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Other comprehensive income:
Total other comprehensive income				$ 50