Fair Value of Financial Instruments (Effects Of Derivative Instruments On Consolidated Statements Of Operations) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Net Gains (Losses) on Financial Instruments at Fair Value and Foreign Exchange [Member] \| Variable Interest Entity, Primary Beneficiary [Member] \| Currency swaps-VIE [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Currency swaps-VIE	$ (1)	$ (4)	$ (1)	$ (4)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details