Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	4 Months Ended
	Jun. 18, 2016	Jun. 20, 2015
Income Statement [Abstract]
Net sales	$ 5,196	$ 5,407
Cost of sales	4,417	4,597
Gross profit	779	810
Selling and administrative expenses	646	652
Operating earnings	133	158
Interest expense, net	60	59
Equity in earnings of unconsolidated affiliates	(1)	(2)
Earnings from continuing operations before income taxes	74	101
Income tax provision	27	38
Net earnings from continuing operations	47	63
Income from discontinued operations, net of tax	0	1
Net earnings including noncontrolling interests	47	64
Less net earnings attributable to noncontrolling interests	(1)	(3)
Net earnings attributable to SUPERVALU INC.	$ 46	$ 61
Basic net earnings per share attributable to SUPERVALU INC.:
Continuing operations (in dollars per share)	$ 0.17	$ 0.23
Discontinued operations (in dollars per share)	0.00	0.00
Basic net earnings per share (in dollars per share)	0.17	0.23
Diluted net earnings per share attributable to SUPERVALU INC.:
Continuing operations (in dollars per share)	0.17	0.23
Discontinued operations (in dollars per share)	0.00	0.00
Diluted net earnings per share (in dollars per share)	$ 0.17	$ 0.23
Weighted average number of shares outstanding:
Basic (in shares)	264	262
Diluted (in shares)	267	268