Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jul. 04, 2020	Jul. 03, 2021	Jul. 04, 2020
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes	$ 39.3	$ (41.0)	$ 98.2	$ (14.5)
Consolidated income (loss) before provision (benefit) for income taxes and equity in net income of affiliates	$ 229.3	$ (318.3)	$ 508.1	$ (209.8)
Effective tax rate	17.10%	12.90%	19.30%	6.90%