v3.25.4

Supplemental Disclosures to Consolidated Statements of Cash Flows - Reconciliation of cash and cash equivalents and restricted cash (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Supplemental Disclosures to Consolidated Statements of Cash Flows
Cash and cash equivalents	$ 57	$ 89	$ 79
Cash and cash equivalents included in current assets of discontinued operations	0	74	95
Restricted cash and restricted cash equivalents included in other current assets	$ 38	$ 0	$ 0
Restricted Cash and Cash Equivalents, Current, Asset, Statement of Financial Position [Extensible List]	Restricted Cash And Other Current Assets	Restricted Cash And Other Current Assets	Restricted Cash And Other Current Assets
Restricted cash and restricted cash equivalents included in other assets	$ 0	$ 65	$ 0
Restricted Cash and Cash Equivalents, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Restricted Cash And Other Assets, Non Current	Restricted Cash And Other Assets, Non Current	Restricted Cash And Other Assets, Non Current
Restricted cash included in non-current assets of discontinued operations	$ 0	$ 1	$ 2
Total cash and cash equivalents, restricted cash and restricted cash equivalents at end of period	$ 95	$ 229	$ 176

Amount classified as restricted cash and restricted cash equivalents attributable to disposal group held for sale or disposed of.

+ References

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Amount of cash and cash equivalent. 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.

+ References

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Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; attributable to continuing operation. 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.

+ References

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Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.

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Amount of cash and cash equivalent restricted as to withdrawal or usage, classified as current. 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.

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