v3.24.0.1
FAIR VALUE MEASUREMENTS AND DERIVATIVE INSTRUMENTS (Financial Instruments Measured at Fair Value on a Recurring Basis) (Details) - Recurring - USD ($)
Dec. 31, 2023
Dec. 31, 2022
Assets    
Restricted Cash $ 34,000,000 $ 35,000,000
Energy Derivative Contract, Regulatory Recovery 32,000,000 100,000,000
Energy Derivative Contract, No Regulatory Recovery 3,000,000 4,000,000
Total Assets 69,000,000 139,000,000
Liabilities    
Energy Derivative Contracts, Regulatory Recovery (30,000,000) (18,000,000)
Total Liabilities (30,000,000) (18,000,000)
Total Assets (Liabilities), Net 39,000,000 121,000,000
Level 1    
Assets    
Restricted Cash 34,000,000 35,000,000
Energy Derivative Contract, Regulatory Recovery 0 0
Energy Derivative Contract, No Regulatory Recovery 0 0
Total Assets 34,000,000 35,000,000
Liabilities    
Energy Derivative Contracts, Regulatory Recovery 0 0
Total Liabilities 0 0
Total Assets (Liabilities), Net 34,000,000 35,000,000
Level 2    
Assets    
Restricted Cash 0 0
Energy Derivative Contract, Regulatory Recovery 32,000,000 100,000,000
Energy Derivative Contract, No Regulatory Recovery 3,000,000 4,000,000
Total Assets 35,000,000 104,000,000
Liabilities    
Energy Derivative Contracts, Regulatory Recovery (30,000,000) (18,000,000)
Total Liabilities (30,000,000) (18,000,000)
Total Assets (Liabilities), Net 5,000,000 $ 86,000,000
Level 3    
Liabilities    
Total Assets (Liabilities), Net $ 0