INVESTMENT IN UNCONSOLIDATED SUBSIDIARY AND RELATED PARTY TRANSACTIONS - Equity Method Investment Unconsolidated Subsidiary, Balance Sheet (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated subsidiary	$ 16		$ 19
Receivable from affiliate	66		19
Other long-term liabilities	253		201
Loss from investment in unconsolidated subsidiary	3	$ 2
Related Party
Schedule of Equity Method Investments [Line Items]
Receivable from affiliate	66		19
Other long-term liabilities	99		52
Carbon TerraVault JV
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated subsidiary	16		19
Loss from investment in unconsolidated subsidiary	3	$ 2	9
Carbon TerraVault JV \| Related Party
Schedule of Equity Method Investments [Line Items]
Receivable from affiliate	66		19
Other long-term liabilities	99		52
Carbon TerraVault JV \| Management Services Agreement
Schedule of Equity Method Investments [Line Items]
Equity method investments, distributed to satisfy future capital calls	63		17
Carbon TerraVault JV \| Management Services Agreement \| Related Party
Schedule of Equity Method Investments [Line Items]
Receivable from affiliate	$ 3		$ 2

Equity Method Investments, Amounts That May Be Distributed To Satisfy Future Capital Calls

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