Postretirement Benefits Pretax Activity in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
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| Prior Service Costs (Credits) [Abstract] | |||
| Amount Recognized as Component of Net Benefit Costs | $ (0.7) | $ (0.2) | $ (0.7) |
| Net Actuarial Losses [Abstract] | |||
| Amount Recognized as Component of Net Benefit Costs | $ 0.9 | $ 1.1 | $ 1.1 |
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- References No definition available.
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- References No definition available.
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- Definition Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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