v3.25.0.1
EMPLOYEE BENEFIT PLANS (Components of Net Periodic Benefit Cost) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Service cost for benefits earned $ 396 $ 379 $ 575
Interest cost 916 913 692
Expected return on plan assets (1,014) (981) (1,189)
Amortization of prior service cost (3) (4) (4)
Amortization of net actuarial gain (loss) 1 1 2
Net periodic benefit cost 296 308 76
Less: transfer to regulatory account 39 25 254
Total expense recognized 335 333 330
PBOP Plans      
Defined Benefit Plan Disclosure [Line Items]      
Service cost for benefits earned 41 38 62
Interest cost 71 73 53
Expected return on plan assets (139) (132) (130)
Amortization of prior service cost 3 3 7
Amortization of net actuarial gain (loss) (23) (19) (40)
Special termination benefits 0 0 22
Net periodic benefit cost $ (47) $ (37) $ (26)