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Pension, Other Postretirement Benefits and Savings Plans - Benefit Costs and Amounts Recognized in Other Comprehensive (Income) Loss (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Benefits cost (credit): |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Interest Expense, Operating and Nonoperating | Interest Expense, Operating and Nonoperating | Interest Expense, Operating and Nonoperating
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement and Curtailment Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Defined Benefit Plan Curtailments And Settlements | Defined Benefit Plan Curtailments And Settlements | Defined Benefit Plan Curtailments And Settlements
Pension Plan [Member] |  |  |
Benefits cost (credit): |  |  |
Service cost | $ 21 |  |
Other Postretirement Benefits Plan [Member] |  |  |
Benefits cost (credit): |  |  |
Service cost | 2 | $ 2 | $ 3
Interest cost | 15 | 16 | 12
Expected return on plan assets | $ 0 | $ 0 | $ 0
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax
Amortization of prior service cost (credit) | $ (2) | $ (1) | $ (1)
Amortization of net losses (gains) | $ (9) | $ (9) | $ 2
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax
Net periodic cost | $ 6 | $ 8 | $ 16
Net curtailments/settlements /termination benefits | 0 | 0 | 0
Benefits cost | 6 | 8 | 16
Recognized in other comprehensive (income) loss before tax and minority: |  |  |
Prior service cost (credit) from plan amendments | (28) | 0 | 0
(Decrease) increase in net actuarial losses | (9) | 1 | (101)
Amortization of prior service (cost) credit in net periodic cost | 3 | 1 | 1
Amortization of net (losses) gains in net periodic cost | 8 | 9 | (2)
Immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements, and divestitures | 0 | 0 | 0
Total recognized in other comprehensive (income) loss before tax and minority | (26) | 11 | (102)
Total recognized in total benefits cost and other comprehensive (income) loss before tax and minority | (20) | 19 | (86)
UNITED STATES | Pension Plan [Member] |  |  |
Benefits cost (credit): |  |  |
Service cost | 7 | 8 | 13
Interest cost | 174 | 195 | 133
Expected return on plan assets | $ (208) | $ (231) | $ (214)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax
Amortization of prior service cost (credit) | $ 0 | $ 0 | $ 0
Amortization of net losses (gains) | 97 | 98 | 101
Net periodic cost | 70 | 70 | 33
Net curtailments/settlements /termination benefits | (3) | 34 | 124
Benefits cost | 67 | 104 | 157
Recognized in other comprehensive (income) loss before tax and minority: |  |  |
Prior service cost (credit) from plan amendments | (3) | 0 | 6
(Decrease) increase in net actuarial losses | 40 | 40 | (99)
Amortization of prior service (cost) credit in net periodic cost | 0 | 0 | 0
Amortization of net (losses) gains in net periodic cost | (97) | (98) | (101)
Immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements, and divestitures | 3 | (34) | (124)
Total recognized in other comprehensive (income) loss before tax and minority | (57) | (92) | (318)
Total recognized in total benefits cost and other comprehensive (income) loss before tax and minority | 10 | 12 | (161)
UNITED STATES | Other Postretirement Benefits Plan [Member] |  |  |
Benefits cost (credit): |  |  |
Benefits cost | 3 | 5 | 12
Foreign Plan [Member] | Pension Plan [Member] |  |  |
Benefits cost (credit): |  |  |
Service cost | 19 | 18 | 24
Interest cost | 105 | 108 | 60
Expected return on plan assets | $ (91) | $ (92) | $ (67)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax
Amortization of prior service cost (credit) | $ 2 | $ 2 | $ 2
Amortization of net losses (gains) | 20 | 16 | 21
Net periodic cost | 55 | 52 | 40
Net curtailments/settlements /termination benefits | 0 | 7 | 0
Benefits cost | 55 | 59 | 40
Recognized in other comprehensive (income) loss before tax and minority: |  |  |
Prior service cost (credit) from plan amendments | 0 | (0) | (1)
(Decrease) increase in net actuarial losses | (15) | 120 | (10)
Amortization of prior service (cost) credit in net periodic cost | (2) | (2) | (2)
Amortization of net (losses) gains in net periodic cost | (20) | (16) | (21)
Immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements, and divestitures | 0 | (13) | 0
Total recognized in other comprehensive (income) loss before tax and minority | (37) | 89 | (34)
Total recognized in total benefits cost and other comprehensive (income) loss before tax and minority | 18 | 148 | 6
Foreign Plan [Member] | Other Postretirement Benefits Plan [Member] |  |  |
Benefits cost (credit): |  |  |
Benefits cost | $ 3 | $ 3 | $ 4

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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + 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 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-6 + Details
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