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Nonoperating Income (Expense) (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Other Income and Expenses [Abstract] |  |  |
Settlement loss |  |  | $ 10
Settlement loss, after tax |  |  | 9
Equity method investment, realized gain | $ 180 |  |
Equity method investment, realized gain, after tax | $ 135 |  |
Equity method investment, impairment |  | $ 31 | $ 91

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- Definition Amount of other-than-temporary decline in value that has been recognized against investment accounted for under equity method of accounting. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481664/323-10-45-1 + Details
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