Summary of Significant Accounting Policies Revision Table (Details) - USD ($) $ in Millions	4 Months Ended
Jun. 20, 2015	Jun. 14, 2014
Segment Reporting Information [Line Items]
Net sales	$ 5,407	$ 5,264
Sales Revenue Net Percent To Net Sales	100.00%	100.00%
Cost of sales	$ 4,597	$ 4,509
Gross Profit	810	755
Selling and administrative expenses	652	620
Operating Income (Loss)	158	135
Scenario, Previously Reported [Member]
Segment Reporting Information [Line Items]
Net sales		$ 5,234
Sales Revenue Net Percent To Net Sales		100.00%
Cost of sales		$ 4,482
Gross Profit		752
Selling and administrative expenses		617
Operating Income (Loss)		135
Scenario, Adjustment [Member]
Segment Reporting Information [Line Items]
Net sales		$ 30
Sales Revenue Net Percent To Net Sales		0.00%
Cost of sales		$ 27
Gross Profit		3
Selling and administrative expenses		3
Operating Income (Loss)		0
Independent Business [Member]
Segment Reporting Information [Line Items]
Net sales	$ 2,462	$ 2,420
Sales Revenue Net Percent To Net Sales	45.60%	46.00%
Operating Income (Loss)	$ 77	$ 66
Independent Business [Member] \| Scenario, Previously Reported [Member]
Segment Reporting Information [Line Items]
Net sales		$ 2,400
Sales Revenue Net Percent To Net Sales		45.90%
Independent Business [Member] \| Scenario, Adjustment [Member]
Segment Reporting Information [Line Items]
Net sales		$ 20
Sales Revenue Net Percent To Net Sales		0.10%
Save-A-Lot [Member]
Segment Reporting Information [Line Items]
Net sales	$ 1,408	$ 1,356
Sales Revenue Net Percent To Net Sales	26.00%	25.70%
Operating Income (Loss)	$ 51	$ 46
Save-A-Lot [Member] \| Scenario, Previously Reported [Member]
Segment Reporting Information [Line Items]
Net sales		$ 1,348
Sales Revenue Net Percent To Net Sales		25.70%
Save-A-Lot [Member] \| Scenario, Adjustment [Member]
Segment Reporting Information [Line Items]
Net sales		$ 8
Sales Revenue Net Percent To Net Sales		0.00%
Retail Food [Member]
Segment Reporting Information [Line Items]
Net sales	$ 1,473	$ 1,430
Sales Revenue Net Percent To Net Sales	27.20%	27.20%
Operating Income (Loss)	$ 33	$ 30
Retail Food [Member] \| Scenario, Previously Reported [Member]
Segment Reporting Information [Line Items]
Net sales		$ 1,428
Sales Revenue Net Percent To Net Sales		27.30%
Retail Food [Member] \| Scenario, Adjustment [Member]
Segment Reporting Information [Line Items]
Net sales		$ 2
Sales Revenue Net Percent To Net Sales		(0.10%)
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Net sales	$ 64	$ 58
Sales Revenue Net Percent To Net Sales	1.20%	1.10%
Operating Income (Loss)	$ (3)	$ (7)
Corporate Segment [Member] \| Scenario, Previously Reported [Member]
Segment Reporting Information [Line Items]
Net sales		$ 58
Sales Revenue Net Percent To Net Sales		1.10%
Corporate Segment [Member] \| Scenario, Adjustment [Member]
Segment Reporting Information [Line Items]
Net sales		$ 0
Sales Revenue Net Percent To Net Sales		0.00%

Sales revenue, net as a percentage of consolidated net sales.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.4)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 30

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34747878&loc=d3e3636-108311

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 4

-Article 5

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