Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Dec. 05, 2015	Nov. 29, 2014	Dec. 05, 2015	Nov. 29, 2014
Income Statement [Abstract]
Net sales	$ 4,114	$ 4,225	$ 13,583	$ 13,530
Cost of sales	3,513	3,629	11,589	11,605
Gross profit	601	596	1,994	1,925
Selling and administrative expenses	494	540	1,635	1,640
Intangible asset impairment charge	6	0	6	0
Operating earnings	101	56	353	285
Interest expense, net	45	46	148	156
Equity in earnings of unconsolidated affiliates	(1)	(1)	(3)	(3)
Earnings from continuing operations before income taxes	57	11	208	132
Income tax provision (benefit)	22	(1)	79	41
Net earnings from continuing operations	35	12	129	91
Income from discontinued operations, net of tax	0	69	3	68
Net earnings including noncontrolling interests	35	81	132	159
Less net earnings attributable to noncontrolling interests	(1)	(2)	(6)	(6)
Net earnings attributable to SUPERVALU INC.	$ 34	$ 79	$ 126	$ 153
Basic net earnings per share attributable to SUPERVALU INC.:
Continuing operations (in dollars per share)	$ 0.13	$ 0.04	$ 0.47	$ 0.33
Discontinued operations (in dollars per share)	0.00	0.27	0.01	0.26
Basic net earnings per share (in dollars per share)	0.13	0.31	0.48	0.59
Diluted net earnings per share attributable to SUPERVALU INC.:
Continuing operations (in dollars per share)	0.13	0.04	0.46	0.33
Discontinued operations (in dollars per share)	0.00	0.26	0.01	0.26
Diluted net earnings per share (in dollars per share)	$ 0.13	$ 0.30	$ 0.47	$ 0.58
Weighted average number of shares outstanding:
Basic (in shares)	264	261	263	260
Diluted (in shares)	268	265	268	263