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Pension and Other Postretirement Benefits - Weighted Average assumptions used in calculating benefit obligations (Details) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Pension |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Discount rate | 5.99% | 5.19%
Measurement date | Dec. 31, 2024 | Dec. 31, 2023
Pension | United States |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Rate of compensation increase | 3.00% | 3.50%
Pension | Jamaica |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Rate of compensation increase | 7.00% |
OPEB |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Discount rate | 5.62% | 5.19%
Measurement date | Dec. 31, 2024 | Dec. 31, 2023
OPEB | United States |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Rate of compensation increase | 3.00% | 3.50%
OPEB | Jamaica |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Rate of compensation increase | 7.00% |

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- Definition Measurement Date, Benefit Obligation + References No definition available. + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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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. + Details
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