INVESTMENT IN UNCONSOLIDATED SUBSIDIARIES AND RELATED PARTY TRANSACTIONS - Schedule of Equity Method Investment Unconsolidated Subsidiary (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Schedule of Equity Method Investments [Line Items] | ||
| Receivable from affiliate | $ 6 | $ 14 |
| Payable to affiliate | 397 | 452 |
| Other long-term liabilities | 353 | 312 |
| Carbon TerraVault JV | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Equity method investments, distributed to satisfy future capital calls | 1 | 8 |
| Carbon TerraVault JV | Related Party | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Receivable from affiliate | 6 | 14 |
| Payable to affiliate | 1 | 0 |
| Other long-term liabilities | 127 | 117 |
| Carbon TerraVault JV | Related Party | Letter of Credit | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Receivable from affiliate | 4 | |
| Carbon TerraVault JV | Related Party | Management Services Agreement | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Receivable from affiliate | $ 1 | $ 6 |