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Fair Value of Financial Instruments (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Number of days from period end | 2 days |
CDS Contract A |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Credit Derivative, Term | 12 months |
Derivative, Notional Amount | $ 550 |
CDS Contract B |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Credit Derivative, Term | 9 months |
Derivative, Notional Amount | $ 107 |
CDS Contract C |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Credit Derivative, Term | 5 months |
Derivative, Notional Amount | $ 93 |
CDS Contracts Aggregate |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative, Notional Amount | 750 | $ 739
Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt, Long-term and Short-term, Combined Amount | 7,527 | 7,328
Carrying value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt, Long-term and Short-term, Combined Amount | 7,539 | 7,541
Level 1 | Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt, Long-term and Short-term, Combined Amount | 7,166 | 4,503
Level 2 | Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt, Long-term and Short-term, Combined Amount | 361 | 2,825
Level 3 | Fair Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt, Long-term and Short-term, Combined Amount | $ 0 | $ 0

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- Definition Term of the credit risk derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4K -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4K + Details
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