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Pension, Other Postretirement Benefits and Savings Plans - Changes in Benefit Obligation and Plan Assets (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Change in benefit obligation: |  |  |
Curtailments/settlements/termination benefits | $ (3) | $ 40 | $ 124
UNITED STATES |  |  |
Change in plan assets: |  |  |
Beginning balance | 203 |  |
Ending balance | 0 | 203 |
Foreign Plan [Member] |  |  |
Change in plan assets: |  |  |
Beginning balance | 445 |  |
Ending balance | 130 | 445 |
Pension Plan [Member] |  |  |
Change in benefit obligation: |  |  |
Service cost — benefits earned | (21) |  |
Actuarial loss | 1 | 16 |
Pension Plan [Member] | UNITED STATES |  |  |
Change in benefit obligation: |  |  |
Beginning balance | (3,659) | (4,084) |
Service cost — benefits earned | (7) | (8) | (13)
Interest cost | (174) | (195) | (133)
Plan amendments | 3 | 0 |
Actuarial loss | 107 | (98) |
Participant contributions | 0 | 0 |
Curtailments/settlements/termination benefits | 13 | 355 |
Foreign currency translation | 0 | 0 |
Benefit payments | 337 | 371 |
Ending balance | (3,380) | (3,659) | (4,084)
Change in plan assets: |  |  |
Beginning balance | 3,724 | 4,174 |
Actual return on plan assets | 61 | 290 |
Company contributions to plan assets | (5) | (18) |
Cash funding of direct participant payments | 17 | 4 |
Participant contributions | 0 | 0 |
Settlements | (13) | (355) |
Foreign currency translation | 0 | 0 |
Benefit payments | (337) | (371) |
Ending balance | 3,447 | 3,724 | 4,174
Funded status at end of year | 67 | 65 |
Pension Plan [Member] | Foreign Plan [Member] |  |  |
Change in benefit obligation: |  |  |
Beginning balance | (2,392) | (2,227) |
Service cost — benefits earned | (19) | (18) | (24)
Interest cost | (105) | (108) | (60)
Plan amendments | 0 | 0 |
Actuarial loss | 131 | (116) |
Participant contributions | (3) | (3) |
Curtailments/settlements/termination benefits | 12 | 21 |
Foreign currency translation | 105 | (83) |
Benefit payments | 160 | 142 |
Ending balance | (2,111) | (2,392) | (2,227)
Change in plan assets: |  |  |
Beginning balance | 2,146 | 2,043 |
Actual return on plan assets | (49) | 102 |
Company contributions to plan assets | (31) | (42) |
Cash funding of direct participant payments | 26 | 26 |
Participant contributions | 3 | 3 |
Settlements | (12) | (16) |
Foreign currency translation | (79) | 88 |
Benefit payments | (160) | (142) |
Ending balance | 1,906 | 2,146 | 2,043
Funded status at end of year | (205) | (246) |
Other Postretirement Benefits Plan [Member] |  |  |
Change in benefit obligation: |  |  |
Beginning balance | (287) | (292) |
Service cost — benefits earned | (2) | (2) | (3)
Interest cost | (15) | (16) | (12)
Plan amendments | 28 | 0 |
Actuarial loss | 11 | (1) |
Participant contributions | (6) | (7) |
Curtailments/settlements/termination benefits | 0 | 0 |
Foreign currency translation | 8 | (1) |
Benefit payments | 31 | 32 |
Ending balance | (232) | (287) | (292)
Change in plan assets: |  |  |
Beginning balance | 0 | 0 |
Actual return on plan assets | 0 | 0 |
Company contributions to plan assets | 0 | 0 |
Cash funding of direct participant payments | 25 | 25 |
Participant contributions | 6 | 7 |
Settlements | 0 | 0 |
Foreign currency translation | 0 | 0 |
Benefit payments | (31) | (32) |
Ending balance | 0 | 0 | $ 0
Funded status at end of year | (232) | (287) |
Other Postretirement Benefits Plan [Member] | UNITED STATES |  |  |
Change in plan assets: |  |  |
Funded status at end of year | 153 | 195 |
Other Postretirement Benefits Plan [Member] | Foreign Plan [Member] |  |  |
Change in plan assets: |  |  |
Funded status at end of year | $ 79 | $ 92 |

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- Definition Curtailments The amount of decrease that is related to an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements The amount of decrease that relates to an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts. + References No definition available. + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + 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 (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480266/715-60-50-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(5) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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