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Debt And Related Expenses (Schedule of Net Financing Cost Components) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Debt Disclosure [Abstract] |  |  |
Interest based on debt outstanding | $ 401 | $ 369 | $ 370
Interest income | (62) | (55) | (38)
Other | 24 | (6) | (23)
Total net financing costs | $ 363 | $ 308 | $ 309

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