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Segment Information (Sales By Product Category) (Details) (USD $) | 3 Months Ended | 12 Months Ended
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Sep. 28, 2013 | Jun. 29, 2013 | Mar. 30, 2013 | Dec. 29, 2012 | Sep. 29, 2012 | Jun. 23, 2012 | Mar. 24, 2012 | Dec. 24, 2011 | Sep. 28, 2013 | Sep. 29, 2012 | Sep. 24, 2011
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 948,854,000 | $ 934,015,000 | $ 920,694,000 | $ 934,977,000 | $ 993,896,000 | $ 920,085,000 | $ 883,803,000 | $ 920,531,000 | $ 3,738,540,461 | $ 3,718,314,651 | $ 3,569,023,094
Grocery [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 1,424,869,000 | 1,447,520,000 | 1,397,944,000
Non-Foods [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 707,294,000 | 709,959,000 | 690,199,000
Perishables [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 898,956,000 | 866,252,000 | 825,068,000
Gasoline [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 568,701,000 | 553,779,000 | 515,519,000
Grocery Sales [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information By Segment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 3,599,820,000 | $ 3,577,510,000 | $ 3,428,730,000

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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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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