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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, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Debt Disclosure [Abstract]
Interest based on debt outstanding	$ 125	$ 98	$ 378	$ 273
Interest income	(18)	(19)	(42)	(46)
Other	2	9	12	13
Total net financing costs	$ 109	$ 88	$ 348	$ 240

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