Fair Value Of Assets And Liabilities Narrative (Details) (Financial assets and liabilities measured on a recurring basis, USD $)	Mar. 29, 2013	Sep. 28, 2012
Estimate of Fair Value, Fair Value Disclosure
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of debt	$ 6,276,300,000	$ 5,440,900,000
Carrying (Reported) Amount, Fair Value Disclosure
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of debt	$ 6,224,400,000	$ 5,413,300,000