Commitments and Contingencies (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Loss Contingencies [Line Items]
Contingency reserves, excluding current portion	$ 26	$ 26
Total contingencies	27	27
Current portion (included in accounts payable and accrued liabilities)	(1)	(1)
Long-term portion	26	26
Environmental reserves
Loss Contingencies [Line Items]
Contingency reserves, excluding current portion	$ 27	$ 27

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.

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+ Details