v3.26.1
REGULATORY MATTERS - Transmission ROE Incentive (Details) - FERC
$ in Millions
12 Months Ended
Jan. 17, 2025
Feb. 24, 2022
Dec. 31, 2024
USD ($)
Transmission Related Vegetation Management Programs      
Regulatory Matters [Line Items]      
Basis point adder associated with RTO membership   0.0050  
Transmission ROE Incentive      
Regulatory Matters [Line Items]      
Basis point adder associated with RTO membership 0.0050    
Pre-tax charge with interest recorded     $ 46
Transmission ROE Incentive | Miscellaneous Income      
Regulatory Matters [Line Items]      
Pre-tax charge with interest recorded     4
Transmission ROE Incentive | Revenues from affiliates | Transmission Revenues      
Regulatory Matters [Line Items]      
Pre-tax charge with interest recorded     $ 42