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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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