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Debt And Related Expenses (Schedule of Net Financing Cost Components) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Debt Disclosure [Abstract] |  |  |  |
Interest based on debt outstanding | $ 126 | $ 88 | $ 253 | $ 175
Interest income | (14) | (14) | (24) | (27)
Other | 4 | 2 | 10 | 4
Total net financing costs | $ 116 | $ 76 | $ 239 | $ 152

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