Acquisitions (Details) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended		6 Months Ended			3 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 27, 2014	Dec. 28, 2013	Jun. 29, 2013	Mar. 31, 2015 item	Oct. 31, 2014	Jan. 31, 2014 agreement
Restructuring and Related Cost [Abstract]
Acquisition of businesses, net of cash acquired			$ 29,177,000	$ 22,461,000
Contingent consideration maximum number of years			3 years
Potential cash payout for contingent consideration arrangements	51,600,000		51,600,000
Amount of recorded earnout liabilities	45,400,000		45,400,000
Revenue	12,087,074,000	11,237,969,000	24,532,155,000	22,952,236,000
Senior Notes, Maturing in October 2024 [Member]
Restructuring and Related Cost [Abstract]
Face value of debt instrument							1,250,000,000
Senior Notes, Maturing in October 2044 [Member]
Restructuring and Related Cost [Abstract]
Face value of debt instrument							1,000,000,000
Six-Part Senior Notes Offering [Member]
Restructuring and Related Cost [Abstract]
Face value of debt instrument							5,000,000,000
Jan 2014 Forward Starting Swaps [Member]
Restructuring and Related Cost [Abstract]
Number of interest rate derivatives held								2
Jan 2014 Forward Starting Swaps [Member] | Senior Notes, Maturing in October 2024 [Member]
Restructuring and Related Cost [Abstract]
Forecasted Debt Instrument Term			10 years
Jan 2014 Forward Starting Swaps [Member] | Senior Notes, Maturing in October 2044 [Member]
Restructuring and Related Cost [Abstract]
Forecasted Debt Instrument Term			30 years
US Foods Proposed Merger [Member]
Restructuring and Related Cost [Abstract]
Number of customers		200,000
Revenue				4,600,000,000	4,600,000,000
Interest Rate Swap Agreements [Member]
Restructuring and Related Cost [Abstract]
Notional amount of derivative	1,250,000,000		1,250,000,000
Interest Rate Swap Agreements [Member] | Jan 2014 Forward Starting Swaps [Member]
Restructuring and Related Cost [Abstract]
Notional amount of derivative								2,000,000,000
Forecast [Member] | US Foods Proposed Merger [Member]
Restructuring and Related Cost [Abstract]
Number of distribution centers						11
Divestiture of distribution centers, cash consideration						850,000,000
Payment required if merger were cancelled						300,000,000
Forecast [Member] | US Foods Proposed Merger [Member] | Common Stock [Member]
Restructuring and Related Cost [Abstract]
Consideration transferred, number of shares issued						87
Consideration transferred, percentage ownership represented by number of shares issued						13.00%
December 2013 Estimate [Member] | Forecast [Member] | US Foods Proposed Merger [Member]
Restructuring and Related Cost [Abstract]
Net equity acquired						3,500,000,000
Consideration transferred, cash payment						500,000,000
Consideration transferred, assumed or refinanced debt						4,700,000,000
Consideration transferred, total enterprise value						8,200,000,000
December 2013 Estimate [Member] | Forecast [Member] | US Foods Proposed Merger [Member] | Common Stock [Member]
Restructuring and Related Cost [Abstract]
Consideration transferred, value of common stock issued						3,000,000,000
October 2014 Merger Consideration Estimate [Member] | Forecast [Member] | US Foods Proposed Merger [Member]
Restructuring and Related Cost [Abstract]
Net equity acquired						4,000,000,000
Consideration transferred, cash payment						500,000,000
Consideration transferred, assumed or refinanced debt						4,800,000,000
Consideration transferred, total enterprise value						8,800,000,000
October 2014 Merger Consideration Estimate [Member] | Forecast [Member] | US Foods Proposed Merger [Member] | Common Stock [Member]
Restructuring and Related Cost [Abstract]
Consideration transferred, value of common stock issued						$ 3,500,000,000