Fair Value of Financial Instruments (Effects Of Derivative Instruments On Consolidated Statements Of Operations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Total	$ (5)	$ 8	$ 6
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange	Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange	Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange
Net Gains (Losses) on Financial Instruments at Fair Value and Foreign Exchange [Member] \| Interest rate swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total	$ 1	$ 0	$ 13
Net Gains (Losses) on Financial Instruments at Fair Value and Foreign Exchange [Member] \| Variable Interest Entity, Not Primary Beneficiary [Member] \| Currency swaps-VIE
Derivative Instruments, Gain (Loss) [Line Items]
Total	$ (6)	$ 8	$ (7)

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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