Fair Value of Financial Instruments (Effects Of Derivative Instruments On Consolidated Statements Of Operations) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Total	$ (1)	$ (13)
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 [Member] \| Interest rate swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total	$ 0	$ (9)
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	$ (1)	$ (4)

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4A

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4E
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4E

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