Financial Instruments and Risk Management By Income Statement Location (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 29, 2012	Sep. 24, 2011	Sep. 25, 2010
Designated as Hedging Instrument [Member] | Derivatives in Cash Flow Hedging Relationships [Member] | Interest Rate Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Losses) Recognized in OCI (Effective Portion)	$ (3,561)	$ (1,177)	$ (5,706)
Designated as Hedging Instrument [Member] | Derivatives in Cash Flow Hedging Relationships [Member] | Interest Rate Swaps [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Reclassified from Accumulated OCI into Income (Effective Portion)	(2,680)	(2,881)	(3,597)
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Unrealized Gains (Losses) Recognized in Income	4,649	1,431	(5,400)
Not Designated as Hedging Instrument [Member] | Commodity-related derivatives [Member] | Cost of Products Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Unrealized Gains (Losses) Recognized in Income	$ 4,649	$ 1,431	$ (5,400)