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Other Comprehensive Income Information (Schedule Of Income Tax (Expense)/Credit For Components Of Other Comprehensive Income) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Other Comprehensive Income Information Tax [Abstract] |  |  |
Foreign exchange translation adjustment | $ 14 | $ 341 | $ 54
Postretirement benefits reserves adjustment (excluding amortization) | (181) | 200 | (1,120)
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs | (27) | (20) | (116)
Total | $ (194) | $ 521 | $ (1,182)

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- Definition Amount of tax expense (benefit) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 12 -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-12 + Details
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