INVESTMENT IN UNCONSOLIDATED SUBSIDIARIES AND RELATED PARTY TRANSACTIONS - Schedule of Equity Method Investment Unconsolidated Subsidiary (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Schedule of Equity Method Investments [Line Items]
Receivable from affiliate	$ 7	$ 14
Other long-term liabilities	297	312
Carbon TerraVault JV
Schedule of Equity Method Investments [Line Items]
Equity method investments, distributed to satisfy future capital calls	4	8
Carbon TerraVault JV \| Related Party
Schedule of Equity Method Investments [Line Items]
Receivable from affiliate	7	14
Other long-term liabilities	120	117
Carbon TerraVault JV \| Related Party \| Management Services Agreement
Schedule of Equity Method Investments [Line Items]
Receivable from affiliate	$ 3	$ 6

- 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.

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