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COMMITMENTS AND CONTINGENCIES Nova Ethylene Asset Matter (Details) - Nova Ethylene Asset Matter [Member] $ in Millions, $ in Millions |  | 3 Months Ended |
--- | --- | --- | ---
Sep. 18, 2019 CAD ($) | Sep. 18, 2019 USD ($) | Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($)
Gain Contingencies [Line Items] |  |  |  |
Litigation Settlement, Amount Awarded from Other Party | $ 1,430 | $ 1,080 | $ 1,000 |
Estimated Litigation Liability, Noncurrent |  |  | $ 201 | $ 201

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