Derivative Instruments and Hedging Activities - Balance Sheet Location (Details) - USD ($) $ in Millions	Sep. 26, 2020	Dec. 31, 2019
Designated derivatives:
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 12.2	$ 27.3
Designated derivatives: | Prepaid expenses and other current assets | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	4.5	1.0
Designated derivatives: | Other non-current assets | Cross-currency swap
Derivatives, Fair Value [Line Items]
Asset Derivatives	7.7	26.3
Designated derivatives: | Other accrued liabilities | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Liability Derivatives	6.7	4.7
Non-designated derivatives: | Prepaid expenses and other current assets | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Asset Derivatives	4.2	3.3
Non-designated derivatives: | Other accrued liabilities | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 2.1	$ 3.7