v3.25.1
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 32 $ 34
Interest cost 61 57
Expected return on plan assets (68) (69)
Amortization of unrecognized (gain) loss (2) 5
Amortization of prior service credit 0 0
Total 23 27
Other Postretirement Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 1 1
Interest cost 8 10
Expected return on plan assets 0 0
Amortization of unrecognized (gain) loss (8) (7)
Amortization of prior service credit (22) (23)
Total $ (21) $ (19)