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Pensions Benefit Plans and Other Postretirement Benefits - Weighted Average Assumptions Assumed and Effect of Percentage Point Change in Health Care Cost Trend (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
U.S. |  |  |
Weighted average assumed health care cost trend (in percent) |  |  |
Health care cost trend rate assumed for next year (as a percent) | 6.30% | 6.50% |
Rate to which the cost trend rate is assumed to decline (ultimate trend rate) (as a percent) | 5.00% | 5.00% |
Year that the rate reaches the ultimate trend rate | 2031 | 2031 |
Non-U.S. |  |  |
Weighted average assumed health care cost trend (in percent) |  |  |
Health care cost trend rate assumed for next year (as a percent) | 5.00% | 5.00% |
Rate to which the cost trend rate is assumed to decline (ultimate trend rate) (as a percent) | 5.00% | 5.00% |
Other Postretirement Benefits Plan | U.S. |  |  |
Defined Benefit Plan Disclosure |  |  |
Payments to the trust as required by the bargaining agreements are based upon specified amounts per hour worked | $ 5 | $ 5 | $ 5

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- Definition Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (l) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Ultimate trend rate for health care cost for defined benefit postretirement plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (l) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 80 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480547/715-80-55-8 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 80 -Name Accounting Standards Codification -Section 35 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480606/715-80-35-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 80 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480576/715-80-50-11 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 80 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480576/715-80-50-9 + Details
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