Financial Instruments and Risk Management, By Income Statement Location (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 29, 2012	Dec. 24, 2011	Sep. 29, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in OCI (Effective Portion)	$ (154)	$ 317
Gains (Losses) Reclassified from Accumulated OCI into Income (Effective Portion)	(861)	(695)
Debt Instrument [Line Items]
Fair Value of Senior Notes	1,361,284		1,346,276
7.5% senior notes due October 1, 2018 [Member]
Debt Instrument [Line Items]
Fair Value of Senior Notes	538,764		531,316
7.375% senior notes due March 15, 2020 [Member]
Debt Instrument [Line Items]
Fair Value of Senior Notes	271,250		272,500
7.375% senior notes due August 1, 2021 [Member]
Debt Instrument [Line Items]
Fair Value of Senior Notes	551,270		542,460
Derivatives Not Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Unrealized Gains (Losses) Recognized in Income	(3,614)	(1,048)
Commodity-Related Derivatives [Member] | Cost of Products Sold [Member] | Derivatives Not Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Unrealized Gains (Losses) Recognized in Income	(3,614)	(1,048)
Interest Rate Swaps [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in OCI (Effective Portion)	(154)	317
Interest Rate Swaps [Member] | Interest Expense [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Reclassified from Accumulated OCI into Income (Effective Portion)	$ (861)	$ (695)