XML 148 R120.htm IDEA: XBRL DOCUMENT v3.20.4
EMPLOYEE BENEFITS - Schedule of Net Periodic (Income) Cost (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 3 $ 3 $ 3
Interest cost 40 45 43
Expected return on plan assets (82) (72) (79)
Amortization of actuarial loss 17 19 17
Net periodic pension (income) cost (22) (5) (16)
Qualified Plan      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 3 3 3
Interest cost 37 41 39
Expected return on plan assets (82) (72) (79)
Amortization of actuarial loss 14 17 15
Net periodic pension (income) cost (28) (11) (22)
Non-Qualified Plan      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 0 0 0
Interest cost 3 4 4
Expected return on plan assets 0 0 0
Amortization of actuarial loss 3 2 2
Net periodic pension (income) cost $ 6 $ 6 $ 6