Fair Value Measurements - Additional Information (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Fair value measurements | ||
| Cash, cash equivalents, and reserved funds, carrying value | $ 1,300 | $ 511 |
| Long-term debt | 1,700 | 1,700 |
| Level 1 | ||
| Fair value measurements | ||
| Cash, cash equivalents, and reserved funds, fair value | 1,300 | 511 |
| Level 2 | ||
| Fair value measurements | ||
| Long-term debt, fair value | $ 1,700 | $ 1,600 |
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- Definition Cash, Cash Equivalents, and Reserved Funds, Carrying Value No definition available.
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- Definition Cash, Cash Equivalents, and Reserved Funds, Fair Value Disclosure No definition available.
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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 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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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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