Fair Value Measurements - Summary of Fair Value, by Balance Sheet Grouping (Details) - USD ($) $ in Millions	Jul. 02, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	$ 3,313.9	$ 3,589.5
Convertible notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	838.0	515.6
Fair Value	1,222.5	967.1
Other long-term debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	2,270.4	2,975.7
Fair Value	$ 2,272.6	$ 2,966.8