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Pensions Benefit Plans and Other Postretirement Benefits - Weighted Average Assumptions (Details) - Funded Plan | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pension Benefit Plans. | U.S. |  |  |
Weighted average assumptions used to determine pension and accumulated postretirement benefit obligations |  |  |
Discount rate used to determine pension and accumulated postretirement benefit obligations (as a percent) | 5.48% | 2.86% |
Weighted average assumptions used to determine net periodic pension costs and net postretirement benefit cost |  |  |
Discount rate used to determine net periodic pension costs and net postretirement benefit cost (as a percent) | 2.86% | 2.61% | 3.39%
Expected long-term rate of return on assets (as a percent) | 5.75% | 6.85% | 7.15%
Pension Benefit Plans. | Foreign |  |  |
Weighted average assumptions used to determine pension and accumulated postretirement benefit obligations |  |  |
Discount rate used to determine pension and accumulated postretirement benefit obligations (as a percent) | 5.52% | 2.53% |
Rate of compensation increase (as a percent) | 3.28% | 3.18% |
Weighted average assumptions used to determine net periodic pension costs and net postretirement benefit cost |  |  |
Discount rate used to determine net periodic pension costs and net postretirement benefit cost (as a percent) | 2.53% | 1.92% | 2.53%
Rate of compensation increase (as a percent) | 3.18% | 2.80% | 2.86%
Expected long-term rate of return on assets (as a percent) | 4.21% | 5.46% | 5.23%
Postretirement Benefits Other Than Pensions | U.S. |  |  |
Weighted average assumptions used to determine pension and accumulated postretirement benefit obligations |  |  |
Discount rate used to determine pension and accumulated postretirement benefit obligations (as a percent) | 5.48% | 2.90% | 2.48%
Weighted average assumptions used to determine net periodic pension costs and net postretirement benefit cost |  |  |
Discount rate used to determine net periodic pension costs and net postretirement benefit cost (as a percent) | 2.90% | 2.48% | 3.31%
Postretirement Benefits Other Than Pensions | Foreign |  |  |
Weighted average assumptions used to determine pension and accumulated postretirement benefit obligations |  |  |
Discount rate used to determine pension and accumulated postretirement benefit obligations (as a percent) | 5.15% | 2.95% | 2.55%
Weighted average assumptions used to determine net periodic pension costs and net postretirement benefit cost |  |  |
Discount rate used to determine net periodic pension costs and net postretirement benefit cost (as a percent) | 2.95% | 2.55% | 3.00%

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(2) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(2) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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