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Debt And Related Expenses (Schedule of Net Financing Cost Components) (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Debt Disclosure [Abstract] |  |
Interest based on debt outstanding | $ 127 | $ 87
Interest income | (10) | (13)
Other | 6 | 2
Total net financing costs | $ 123 | $ 76

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