Long-Term Debt (Details) - USD ($)	Dec. 26, 2015	Sep. 26, 2015	Jun. 29, 2015
Long-term debt
Total long-term debt	$ 481,010,000	$ 331,045,000
Less current portion	270,000	279,000
Long-term portion	480,740,000	330,766,000
Credit Agreement | New Revolving Facility
Long-term debt
Maximum borrowing capacity under credit facility			$ 1,800,000,000
Credit Agreement | U.S. Revolver
Long-term debt
Maximum borrowing capacity under credit facility			1,300,000,000
Total long-term debt	480,000,000	330,000,000
Credit Agreement | Alternative Currency Revolver
Long-term debt
Maximum borrowing capacity under credit facility			500,000,000
Credit Agreement | Letters of credit
Long-term debt
Maximum borrowing capacity under credit facility			200,000,000
Credit Agreement | Swing line loans
Long-term debt
Maximum borrowing capacity under credit facility			50,000,000
Credit Agreement | Incremental Credit Facility
Long-term debt
Maximum borrowing capacity under credit facility			$ 750,000,000
Other
Long-term debt
Total long-term debt	$ 1,010,000	$ 1,045,000