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Segment Information (Sales By Product Category) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 25, 2016	Jun. 27, 2015	Jun. 25, 2016	Jun. 27, 2015
Segment Reporting Information By Segment [Line Items]
Net sales	$ 957,177,645	$ 945,974,494	$ 2,832,603,557	$ 2,825,806,017
Grocery
Segment Reporting Information By Segment [Line Items]
Net sales	337,030,000	335,974,000	1,046,616,000	1,042,559,000
Non-foods
Segment Reporting Information By Segment [Line Items]
Net sales	207,575,000	195,484,000	608,601,000	571,059,000
Perishables
Segment Reporting Information By Segment [Line Items]
Net sales	257,799,000	250,895,000	753,027,000	731,507,000
Gasoline
Segment Reporting Information By Segment [Line Items]
Net sales	120,347,000	129,345,000	321,049,000	372,413,000
Retail
Segment Reporting Information By Segment [Line Items]
Net sales	$ 922,751,000	$ 911,698,000	$ 2,729,293,000	$ 2,717,538,000

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- Definition

Segment Reporting Information By Segment [Line Items]

+ References

No definition available.

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

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 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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