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Pension and Postretirement Benefits (Assumptions) (Details) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Postretirement Medical Benefits |  |  |
Weighted average assumptions used to determine Benefit Obligations: |  |  |
Discount rate | 5.57% | 5.83% | 2.83%
Weighted average assumptions used to determine net pension expense: |  |  |
Discount rate | 5.83% | 2.83% | 2.32%
United States | Pension Plan |  |  |
Weighted average assumptions used to determine Benefit Obligations: |  |  |
Discount rate | 5.41% | 5.73% | 3.00%
Rate of increase in compensation levels | 4.00% | 3.50% | 3.50%
Weighted average assumptions used to determine net pension expense: |  |  |
Long-term rate of return on assets | 6.00% | 5.75% | 6.00%
Discount rate | 5.73% | 3.00% | 2.62%
Rate of increase in compensation levels | 3.50% | 3.50% | 3.50%
Weighted-average interest crediting rates | 4.00% | 3.79% | 3.79%
Foreign Plan |  |  |
Weighted average assumptions used to determine Benefit Obligations: |  |  |
Discount rate |  |  | 1.71%
Rate of increase in compensation levels | 3.24% | 3.61% | 3.18%
Weighted average assumptions used to determine net pension expense: |  |  |
Long-term rate of return on assets |  |  | 2.37%
Discount rate | 4.46% | 1.71% | 1.23%
Rate of increase in compensation levels | 3.62% | 3.18% | 3.11%
Weighted-average interest crediting rates | 2.29% | 1.49% | 1.41%
Foreign Plan | Pension Plan |  |  |
Weighted average assumptions used to determine Benefit Obligations: |  |  |
Discount rate | 4.22% | 4.46% |
Weighted average assumptions used to determine net pension expense: |  |  |
Long-term rate of return on assets | 3.97% | 2.43% |

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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 Weighted-average interest crediting rate used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, cash balance and other defined benefit plans with promised interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost 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 of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost 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 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-8 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Weighted average rate of compensation increase used to determine net periodic benefit cost 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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