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Segment Reporting - Reconciliation of Segment Earnings to Consolidated Income Before Provision for Income Taxes and Equity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Oct. 03, 2020	Sep. 28, 2019
Segment Reporting [Abstract]
Segment earnings	$ 278.8	$ 300.7	$ 157.9	$ 918.1
Interest expense	26.5	24.0	78.1	69.4
Other expense, net	17.1	9.7	54.4	27.9
Consolidated income before provision for income taxes and equity in net income of affiliates	$ 235.2	$ 267.0	$ 25.4	$ 820.8

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