XML 153 R125.htm IDEA: XBRL DOCUMENT v3.20.4
PENSION AND POSTRETIREMENT BENEFIT PLANS - Cost (Details) - USD ($)
$ in Millions
 2 Months Ended 10 Months Ended 12 Months Ended
Dec. 31, 2020
Oct. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Pension Benefits        
Net periodic benefit costs        
Service cost—benefits earned during the period $ 0 $ 1 $ 1 $ 1
Interest cost on projected benefit obligation 0 1 2 2
Expected return on plan assets 0 (1) (2) (3)
Amortization of net actuarial loss 0 1 1 2
Settlement costs 0 1 9 4
Net periodic benefit costs 0 3 11 6
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]        
Net actuarial (loss) gain (1) (1) (6) (3)
Settlement costs 0 1 9 4
Amortization of net actuarial gain/loss 0 1 1 2
Total recognized in other comprehensive (loss) income (1) 1 4 3
Postretirement Benefits        
Net periodic benefit costs        
Service cost—benefits earned during the period 1 4 4 4
Interest cost on projected benefit obligation 0 3 4 4
Expected return on plan assets 0 0 0 0
Cost of special termination benefits 0 0 6 0
Amortization of net actuarial loss 0 0 0 0
Settlement costs 0 1 0 0
Net periodic benefit costs 1 8 14 8
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]        
Net actuarial (loss) gain (7) (2) (19) 14
Settlement costs 0 1 (2) 0
Amortization of net actuarial gain/loss 0 0 0 0
Total recognized in other comprehensive (loss) income $ (7) $ (1) $ (21) $ 14