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Commitments and Contingencies - Enviromental Liability Rollforward (Details) - USD ($) $ in Millions | 12 Months Ended
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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.

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