Annual report pursuant to Section 13 and 15(d)

PENSION AND POST RETIREMENT BENEFITS (Components of Accumulated Other Comprehensive Loss (Income) (Details)

v3.22.4
PENSION AND POST RETIREMENT BENEFITS (Components of Accumulated Other Comprehensive Loss (Income) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation $ 41 $ (451)
Actual returns on assets under (over) expected 1,165 (309)
Amortization of net actuarial gain (loss) (13) (32)
Amortization of prior service credits (costs) (5) (1)
Settlements 8 22
Plan amendments 122 0
OPEB    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation (1,764) (438)
Actual returns on assets under (over) expected 134 11
Amortization of net actuarial gain (loss) 43 (3)
Amortization of prior service credits (costs) 3 2
Settlements 0 0
Plan amendments (163) 8
Discount rates | Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation (1,143) (224)
Discount rates | OPEB    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation (441) (117)
Demographic updates | Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation (102) 76
Demographic updates | OPEB    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation (7) 3
Mortality | Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation 17 19
Mortality | OPEB    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation 0 13
Per capita healthcare costs | Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation 0 0
Per capita healthcare costs | OPEB    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation (1,328) (350)
Other | Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation (8) (2)
Other | OPEB    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation (5) (5)
Actuarial gain on benefit obligation | Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation (1,236) (131)
Actuarial gain on benefit obligation | OPEB    
Defined Benefit Plan Disclosure [Line Items]    
Actuarial gain on benefit obligation $ (1,781) $ (456)