Derivative Instruments (Effect of Derivative Instruments) (Details) - Designated as Hedging Instrument - Cash Flow Hedging - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) recognized in AOCI	$ (0.6)	$ 4.3
Net foreign exchange gain (loss) recognized in other income and expense, net	0.0	(0.2)
Interest Rate Contract
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) reclassified from AOCI	(4.0)	0.0
Revenue | Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) reclassified from AOCI	(0.1)	(0.6)
Other Operating Income (Expense) | Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) reclassified from AOCI	1.7	1.8
Interest Expense | Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) reclassified from AOCI	1.5	0.0
Interest Expense | Interest Rate Contract
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) reclassified from AOCI	$ 0.1	$ 0.8