Financial Instruments (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Financial instruments | ||
| Total debt | $ 5,119 | $ 5,657 |
| Carrying amount | ||
| Financial instruments | ||
| Cash and cash equivalents | 509 | 620 |
| Restricted cash and cash equivalents | 286 | 377 |
| Total debt | 5,119 | 5,657 |
| Fair value | ||
| Financial instruments | ||
| Cash and cash equivalents | 509 | 620 |
| Restricted cash and cash equivalents | 286 | 377 |
| Total debt | $ 5,329 | $ 5,755 |
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of short-term and long-term debt and lease obligation. 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/exampleRef
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- Definition Amount of cash and cash equivalent restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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