Commitments and Contingencies - Asbestos Costs Summary (Details) - Asbestos Related Matters [Member] - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Asbestos Related Contingencies [Line Items]
Asbestos provision, net(a)	[1]	$ 0.0	$ 14.4	$ 30.8
Gain on divestiture before income tax		0.0	(88.8)	0.0
Asbestos remeasurement, net(b)		0.0	0.0	135.9	[2]
Settlement agreements and other		0.0	0.0	(100.4)
Asbestos-related (benefit) costs, net		$ 0.0	$ (74.4)	$ 66.3

[1] 2021 includes costs related to the divestiture of InTelCo as well as certain administrative costs such as legal-related costs for insurance asset recoveries. 2020 included amounts to maintain a rolling 10-year provision prior to the transition in 2020 to full horizon.

[2] In 2020, we extended our projection to include pending claims and claims expected to be filed through 2052, which reflected the full time period over which we expected asbestos-related claims to be filed against InTelCo.