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Debt And Related Expenses (Schedule of Net Financing Cost Components) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Debt Disclosure [Abstract] |  |  |  |
Interest based on debt outstanding | $ 98 | $ 93 | $ 273 | $ 282
Interest income | (19) | (11) | (46) | (43)
Other | 9 | (1) | 13 | (8)
Total net financing costs | $ 88 | $ 81 | $ 240 | $ 231

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