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Postretirement Benefits - Schedule Of Net Benefit Costs (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Components of net periodic benefit cost: |  |  |  |
Net periodic benefit cost (benefit) | $ (63) | $ (51) | $ (116) | $ (106)
Pension Benefits | U.S. Plans |  |  |  |
Components of net periodic benefit cost: |  |  |  |
Service cost | 0 | 0 | 0 | 0
Interest cost | 153 | 156 | 459 | 469
Expected return on plan assets | (180) | (174) | (540) | (524)
Amortization of prior service cost (credit) | 0 | 0 | 0 | 0
Net periodic benefit cost (benefit) | (27) | (18) | (81) | (55)
Pension Benefits | Non-U.S. Plans |  |  |  |
Components of net periodic benefit cost: |  |  |  |
Service cost | 12 | 12 | 35 | 34
Interest cost | 28 | 30 | 83 | 91
Expected return on plan assets | (42) | (43) | (122) | (127)
Amortization of prior service cost (credit) | 0 | 0 | 0 | 0
Net periodic benefit cost (benefit) | (2) | (1) | (4) | (2)
Other Postretirement Benefits |  |  |  |
Components of net periodic benefit cost: |  |  |  |
Service cost | 15 | 16 | 47 | 50
Interest cost | 32 | 33 | 93 | 99
Expected return on plan assets | (3) | (2) | (7) | (6)
Amortization of prior service cost (credit) | (1) | (3) | (3) | (10)
Net periodic benefit cost (benefit) | $ 43 | $ 44 | $ 130 | $ 133

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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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