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Earnings Per Share and Equity - Schedule of Share Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate purchase price			$ 65.4	$ 125.8
Fees, commissions and other expenses	$ 0.0	$ 0.0	0.1	0.1
Total cash used for share repurchases	$ 0.0	$ 50.0	$ 65.4	$ 125.8
Treasury shares reissued or retired during period			0
Share Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of repurchased shares	0	2,600,000	3,600,000	7,000,000.0
Aggregate purchase price	$ 0.0	$ 50.0	$ 65.3	$ 125.7
Weighted-average purchase price per share (in dollars per share )	$ 0	$ 19.32	$ 18.08	$ 17.97

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The cash outflow to reacquire common stock during the period.

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