Debt (Narrative) (Details) (USD $)	6 Months Ended			1 Months Ended			6 Months Ended
	Mar. 28, 2014	Mar. 28, 2014 Secured Debt Term Loan	Mar. 19, 2014 Secured Debt Term Loan	Mar. 31, 2013 Line of Credt	Mar. 28, 2014 Line of Credt	Mar. 19, 2014 Line of Credt	Mar. 28, 2014 Senior Notes	Apr. 30, 2013 Senior Notes 3.50% Senior Note	Apr. 30, 2013 Senior Notes 4.75% Senior Note	Mar. 19, 2014 LIBOR Secured Debt Term Loan	Mar. 28, 2014 Letter of Credit Line of Credt	Mar. 19, 2014 Letter of Credit Line of Credt
Debt Instrument [Line Items]
Face amount			$ 1,300,000,000					$ 300,000,000	$ 600,000,000
Maximum borrowing capacity				250,000,000		250,000,000						150,000,000
Minimum LIBOR										0.75%
Quarterly principal amortization payments			0.25%
Original issue discount, percentage			0.25%
Original issue discount, amount			3,300,000
Letters of credit outstanding											0
Annual commitment fee	0.375%
Interest rate		3.50%			3.00%
Borrowings outstanding					0
Borrowings outstanding, term loan		$ 1,300,000,000
Term of debt instrument				5 years			10 years
Stated interest rate								3.50%	4.75%