Commitments and Contingencies - Enviromental Liability Rollforward (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Environmental Liability And Related Assets [Line items]
Environmental Loss Contingency Statement Of Financial Position Extensible Enumeration Not Disclosed Flag		estimated current and long-term environmental liability
Environmental Related Matters [Member]
Environmental Liability and Related Assets [Roll Forward]
Balance as of January 1		$ 54.1	$ 58.3
Changes in estimates for pre-existing accruals:
Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses		0.1	1.8
Discontinued operations(a)		(0.1)	(1.8)
Cash payments		(4.0)	(7.6)
Foreign currency		(0.2)	(0.2)
Balance as of December 31		57.1	54.1
Environmental Related Matters [Member] | Continuing Operations [Member]
Changes in estimates for pre-existing accruals:
Accrual for Environmental Loss Contingencies, Revision in Estimates		1.7	$ 1.8
Environmental Related Matters [Member] | Discontinued Operations [Member]
Changes in estimates for pre-existing accruals:
Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses		5.4
Discontinued operations(a)		(5.4)
Accrual for Environmental Loss Contingencies, Revision in Estimates	[1]	$ 5.4

[1] During 2022, we increased the estimated environmental liability for a former site of ITT by $5.4 and recognized an insurance-related asset of $4.3. The resulting net pre-tax expense of $1.1 has been presented as a loss from discontinued operations within our Consolidated Statements of Operations.