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Other (expense), net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Intercompany Foreign Currency Balance [Line Items]
Postretirement expense	$ (10.9)	$ (12.2)	$ (32.5)	$ (405.0)
Foreign exchange losses	(5.9)	(2.1)	(6.3)	(3.0)
Environmental costs and other, net	(6.5)	(9.9)	(27.4)	(26.6)
Total other (expense), net	(23.3)	(24.2)	(66.2)	(434.6)
Liquidation of Foreign Subsidiaries
Intercompany Foreign Currency Balance [Line Items]
Foreign exchange losses	$ (1.9)	$ (1.3)	(4.8)	(2.9)
Pension Plans
Intercompany Foreign Currency Balance [Line Items]
Settlement losses to defined benefit pension plans			$ 0.0	$ 368.7

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