FAIR VALUE MEASUREMENTS - Schedule of Measurement Inputs (Details) - Commodity contracts not subject to rate recovery $ in Millions	Dec. 31, 2025 USD ($) $ / shares	Dec. 31, 2024 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative liability | $		$ (26)
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative liability | $	$ (55)
Minimum | Level 3 | Measurement Input, Commodity Forward Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative liability, measurement input	0.29
Maximum | Level 3 | Measurement Input, Commodity Forward Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative liability, measurement input	2.41
Weighted Average | Level 3 | Measurement Input, Commodity Forward Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative liability, measurement input	1.61