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Pension and Other Postretirement Benefit Plans - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pension
Pension and Other Postretirement Benefit Plans [Line Items]
Employer contributions	$ 25.0	$ 6.5
Expected future employer contributions	0.0
Other Postretirement
Pension and Other Postretirement Benefit Plans [Line Items]
Employer contributions	0.0	$ 0.0
Expected future employer contributions	$ 0.0

X

- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480482/715-20-55-17

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X

- Definition

Amount of contribution expected to be received by defined benefit plan from employer in remainder of current fiscal year. Excludes contribution previously paid by employer in current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
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-Section 55
-Paragraph 18
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-URI https://asc.fasb.org//1943274/2147480482/715-20-55-18

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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