Retirement Plans and Other Postretirement Benefits - Asset Allocation (Details)	Dec. 31, 2023
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	100.00%
Actual Allocation	100.00%
Pension Benefits \| Long-term fixed income assets
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	80.00%
Actual Allocation	78.00%
Pension Benefits \| Return-seeking assets
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	20.00%
Actual Allocation	22.00%
Target Allocation	20.00%
Pension Benefits \| Equities in US and other developed markets
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	12.00%
Pension Benefits \| Equities in emerging markets
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	4.00%
Pension Benefits \| Alternative investments
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	4.00%
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Actual Allocation	100.00%
Other Benefits \| Long-term fixed income assets
Defined Benefit Plan Disclosure [Line Items]
Actual Allocation	62.00%
Other Benefits \| Return-seeking assets
Defined Benefit Plan Disclosure [Line Items]
Actual Allocation	38.00%

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- Definition

Percentage of investment to total investment within defined benefit plan asset category.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-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

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(ii)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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