Pension and Other Postretirement Benefits - Estimated Future Benefit Payments (Details) $ in Millions	Dec. 31, 2023 USD ($)
Pensions
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2024	$ 88.5
2025	85.5
2026	85.3
2027	83.3
2028	81.9
2029 - 2033	382.4
Other postretirement benefits
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2024	1.3
2025	1.2
2026	1.1
2027	1.1
2028	1.0
2029 - 2033	$ 3.6

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- Definition

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

+ Details

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- Definition

Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

+ References

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- Definition

Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

+ References

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

+ References

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