v3.25.1
FAIR VALUE MEASUREMENTS AND DERIVATIVE INSTRUMENTS (Financial Instruments Measured at Fair Value on a Recurring Basis) (Details) - Recurring - USD ($)
Mar. 31, 2025
Dec. 31, 2024
Assets    
Cash equivalents $ 85,000,000  
Restricted cash 33,000,000 $ 35,000,000
Energy derivative contract assets - regulatory recovery 45,000,000 33,000,000
Energy derivative contract assets - no regulatory recovery 23,000,000 4,000,000
Total Assets 186,000,000 72,000,000
Liabilities    
Energy derivative contract liabilities - regulatory recovery (47,000,000) (31,000,000)
Energy Derivative Contracts, No Regulatory Recovery (1,000,000) (1,000,000)
Total Liabilities (48,000,000) (32,000,000)
Total Assets (Liabilities), Net 138,000,000 40,000,000
Level 1    
Assets    
Cash equivalents 85,000,000  
Restricted cash 33,000,000 35,000,000
Energy derivative contract assets - regulatory recovery 0 0
Energy derivative contract assets - no regulatory recovery 0 0
Total Assets 118,000,000 35,000,000
Liabilities    
Energy derivative contract liabilities - regulatory recovery 0 0
Energy Derivative Contracts, No Regulatory Recovery 0 0
Total Liabilities 0 0
Total Assets (Liabilities), Net 118,000,000 35,000,000
Level 2    
Assets    
Cash equivalents 0  
Restricted cash 0 0
Energy derivative contract assets - regulatory recovery 45,000,000 33,000,000
Energy derivative contract assets - no regulatory recovery 23,000,000 4,000,000
Total Assets 68,000,000 37,000,000
Liabilities    
Energy derivative contract liabilities - regulatory recovery (47,000,000) (31,000,000)
Energy Derivative Contracts, No Regulatory Recovery (1,000,000) (1,000,000)
Total Liabilities (48,000,000) (32,000,000)
Total Assets (Liabilities), Net 20,000,000 $ 5,000,000
Level 3    
Liabilities    
Total Assets (Liabilities), Net $ 0