Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	4 Months Ended
	Jun. 20, 2015	Jun. 14, 2014
Income Statement [Abstract]
Net sales	$ 5,407	$ 5,264
Cost of sales	4,597	4,509
Gross profit	810	755
Selling and administrative expenses	652	620
Operating earnings	158	135
Interest expense, net	59	64
Equity in earnings of unconsolidated affiliates	(2)	(1)
Earnings from continuing operations before income taxes	101	72
Income tax provision	38	24
Net earnings from continuing operations	63	48
Income (loss) from discontinued operations, net of tax	1	(3)
Net earnings including noncontrolling interests	64	45
Less net earnings attributable to noncontrolling interests	(3)	(2)
Net earnings attributable to SUPERVALU INC.	$ 61	$ 43
Basic net earnings (loss) per share attributable to SUPERVALU INC.:
Continuing operations (in dollars per share)	$ 0.23	$ 0.18
Discontinued operations (in dollars per share)	0.00	(0.01)
Basic net earnings per share (in dollars per share)	0.23	0.17
Diluted net earnings (loss) per share attributable to SUPERVALU INC.:
Continuing operations (in dollars per share)	0.23	0.18
Discontinued operations (in dollars per share)	0.00	(0.01)
Diluted net earnings per share (in dollars per share)	$ 0.23	$ 0.17
Weighted average number of shares outstanding:
Basic (in shares)	262	260
Diluted (in shares)	268	262