CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Feb. 27, 2016	Feb. 28, 2015	Feb. 22, 2014
Income Statement [Abstract]
Net sales	$ 17,529	$ 17,917	$ 17,252
Cost of sales	14,945	15,329	14,712
Gross profit	2,584	2,588	2,540
Selling and administrative expenses	2,124	2,164	2,117
Intangible asset impairment charge	6	0	0
Operating earnings	454	424	423
Interest expense, net	196	243	407
Equity in earnings of unconsolidated affiliates	(5)	(4)	(2)
Earnings from continuing operations before income taxes	263	185	18
Income tax provision	85	58	5
Net earnings from continuing operations	178	127	13
Income from discontinued operations, net of tax	8	72	176
Net earnings including noncontrolling interests	186	199	189
Less net earnings attributable to noncontrolling interests	(8)	(7)	(7)
Net earnings attributable to SUPERVALU INC.	$ 178	$ 192	$ 182
Basic net earnings per common share:
Basic net earnings per share from continuing operations (usd per share)	$ 0.64	$ 0.46	$ 0.02
Basic net earnings per share from discontinued operations (usd per share)	0.03	0.28	0.69
Basic net earnings per share (usd per share)	0.68	0.74	0.71
Diluted net earnings per common share:
Diluted net earnings per share from continuing operations (usd per share)	0.63	0.45	0.02
Diluted net earnings per share from discontinued operations (usd per share)	0.03	0.27	0.68
Diluted net earnings per share (usd per share)	$ 0.66	$ 0.73	$ 0.70
Weighted average number of shares outstanding:
Basic	263	260	255
Diluted	268	264	258