Long-Term Debt (Details 2) (USD $)	12 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 24, 2011
Long-term debt
Average effective interest rate (as a percent)	3.50%	2.90%
Debt issuance cost			$ 46,009,000
Loss on extinguishment of debt			19,732,000
Swap
Long-term debt
Interest expense, long-term debt	3,400,000	4,700,000	3,800,000
Restated credit agreement
Long-term debt
Aggregate amount of increase option	500,000,000
Commitment fee on revolving credit facilities (as a percent)	0.20%
Outstanding letters of credit	5,000,000	3,700,000
Amounts drawn against letters of credit	0	0
Debt issuance cost			46,000,000
Restated credit agreement | Base rate | Minimum
Long-term debt
Applicable margin added to reference rate for variable interest (as a percent)	0.50%
Restated credit agreement | Base rate | Maximum
Long-term debt
Applicable margin added to reference rate for variable interest (as a percent)	1.00%
Restated credit agreement | Eurodollar rate
Long-term debt
Margin added to reference rate for base rate (as a percent)	1.00%
Restated credit agreement | Eurodollar rate | Minimum
Long-term debt
Applicable margin added to reference rate for variable interest (as a percent)	1.50%
Restated credit agreement | Eurodollar rate | Maximum
Long-term debt
Applicable margin added to reference rate for variable interest (as a percent)	2.00%
Restated credit agreement | Federal funds rate
Long-term debt
Margin added to reference rate for base rate (as a percent)	0.50%
US revolving credit facility
Long-term debt
Credit facility	800,000,000
Alternative currency revolving credit facility
Long-term debt
Credit facility	200,000,000
Former term loan B and credit facility
Long-term debt
Loss on extinguishment of debt			$ 19,700,000