Derivative Instruments and Hedging Activities - Balance Sheet Location (Details) - USD ($) $ in Millions	Sep. 28, 2019	Dec. 31, 2018
Designated derivatives:
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 32.5	$ 2.0
Designated derivatives: | Prepaid expenses and other current assets | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	2.4	2.0
Designated derivatives: | Prepaid expenses and other current assets | Cross-currency swap
Derivatives, Fair Value [Line Items]
Asset Derivatives	30.1	0.0
Designated derivatives: | Other accrued liabilities | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Liability Derivatives	3.6	6.4
Non-designated derivatives: | Prepaid expenses and other current assets | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	6.0	1.8
Non-designated derivatives: | Other accrued liabilities | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 1.3	$ 2.8