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Long-Lived Assets (Held-for-sale assets) (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Assets held for sale |  |  |  |  |
Aggregate loss on impairment of assets held for sale | $ 1,913 | $ 629 | $ 3,049 | $ 772 |
Aggregate loss on impairment of assets held for sale, net of tax | $ 1,910 | $ 617 | $ 3,040 | $ 755 |
Loss associated with impairment, net of tax (per share) | $ 1.98 | $ 0.64 | $ 3.34 | $ 0.82 |
Assets held for sale | $ 48 |  | $ 48 |  | $ 343
Assets held for sale |  |  |  |  |
Assets held for sale |  |  |  |  |
Assets held for sale | $ 48 |  | $ 48 |  | $ 343

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