Debt - Narrative (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Debt Instrument [Line Items] | ||
| Outstanding debt | $ 4,317 | $ 4,349 |
| Debt issuance costs | 57 | 60 |
| Unamortized discount | $ 111 | 123 |
| Senior Secured Notes | 7.32% senior exchangeable notes due 2026 | ||
| Debt Instrument [Line Items] | ||
| Interest rate | 7.32% | |
| Term Loan | ||
| Debt Instrument [Line Items] | ||
| Weighted average interest rate | 9.50% | |
| Letter of Credit | ||
| Debt Instrument [Line Items] | ||
| Cash collateral for borrowed securities | $ 21 | 21 |
| Letter of Credit | Line of Credit | ||
| Debt Instrument [Line Items] | ||
| Outstanding letters of credit | $ 11 | $ 11 |
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- Definition Carrying amount as of the balance sheet date of cash collateral held for borrowed securities, for which the cash is restricted as to withdrawal or usage. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after accumulated amortization, of debt discount (premium). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Weighted average interest rate of debt outstanding. No definition available.
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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