Fair Value Measurements, Derivative Instruments, Gains & Losses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) in Currency Translation Adjustment on Net Investment Hedge			$ (545.0)	$ (54.0)
Foreign Currency Exchange Contracts [Member] | Cost of Sales [Member] | Derivatives Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion of Gain (Loss) on Derivative, Net	$ 3.7	$ (3.7)	1.6	(18.7)
Foreign Currency Exchange Contracts [Member] | Other Expense [Member] | Derivatives Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion of Gain (Loss) on Derivative, Net	32.3	1.2	103.6	(42.9)
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Other Expense [Member] | Derivatives Designated as Fair Value Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion of Gain (Loss) on Derivative, Net	(1.0)	4.9	1.9	17.0
Ineffective Portion of Gain (Loss) on Derivative, Net	$ 1.9	$ 1.1	$ (3.2)	$ 1.6