Fair Value Measurements, Derivative Instruments (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended						3 Months Ended	9 Months Ended
	Sep. 29, 2012	Dec. 31, 2011	Sep. 29, 2012 Interest Rate Swaps [Member] Other Expense [Member] Derivatives Designated as Fair Value Hedges	Oct. 01, 2011 Interest Rate Swaps [Member] Other Expense [Member] Derivatives Designated as Fair Value Hedges	Sep. 29, 2012 Interest Rate Swaps [Member] Other Expense [Member] Derivatives Designated as Fair Value Hedges	Oct. 01, 2011 Interest Rate Swaps [Member] Other Expense [Member] Derivatives Designated as Fair Value Hedges	Sep. 29, 2012 Foreign Currency Exchange Contracts [Member] Cost of Revenues [Member] Derivatives Not Designated as Fair Value Hedges	Oct. 01, 2011 Foreign Currency Exchange Contracts [Member] Cost of Revenues [Member] Derivatives Not Designated as Fair Value Hedges	Sep. 29, 2012 Foreign Currency Exchange Contracts [Member] Cost of Revenues [Member] Derivatives Not Designated as Fair Value Hedges	Oct. 01, 2011 Foreign Currency Exchange Contracts [Member] Cost of Revenues [Member] Derivatives Not Designated as Fair Value Hedges	Sep. 29, 2012 Foreign Currency Exchange Contracts [Member] Other Expense [Member] Derivatives Not Designated as Fair Value Hedges	Oct. 01, 2011 Foreign Currency Exchange Contracts [Member] Other Expense [Member] Derivatives Not Designated as Fair Value Hedges	Sep. 29, 2012 Foreign Currency Exchange Contracts [Member] Other Expense [Member] Derivatives Not Designated as Fair Value Hedges	Oct. 01, 2011 Foreign Currency Exchange Contracts [Member] Other Expense [Member] Derivatives Not Designated as Fair Value Hedges	Sep. 29, 2012 Foreign Currency Exchange Contracts [Member] Derivatives Not Designated as Fair Value Hedges Other Current Assets [Member]	Dec. 31, 2011 Foreign Currency Exchange Contracts [Member] Derivatives Not Designated as Fair Value Hedges Other Current Assets [Member]	Sep. 29, 2012 Foreign Currency Exchange Contracts [Member] Derivatives Not Designated as Fair Value Hedges Accrued Expense [Member]	Dec. 31, 2011 Foreign Currency Exchange Contracts [Member] Derivatives Not Designated as Fair Value Hedges Accrued Expense [Member]	Oct. 01, 2011 Foreign Exchange Forward Contracts [Member]	Oct. 01, 2011 Foreign Exchange Forward Contracts [Member]
Derivatives Fair Value [Line Items]
Notional Amount Of Derivatives	$ 688.0	$ 449.0																	$ 2,340.0	$ 2,340.0
Fair Value - Assets
Derivative Asset, Fair Value															0.3	0.9
Fair Value - Liabilities
Derivative Liability, Fair Value																	0.5	1.2
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized			$ 0	$ 3.2	$ 0	$ 16.5	$ 1.2	$ 0	$ 2.6	$ 0	$ (8.8)	$ 25.0	$ (2.2)	$ 31.9					$ (5.0)	$ 28.0