EMPLOYEE BENEFIT PLANS (Schedule of Level 3 Reconciliation) (Details) - Level 3 - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Fair value of plan assets at beginning of year	$ 15	$ 8
Actual return on plan assets:
Relating to assets still held at the reporting date	2	0
Relating to assets sold during the period	(3)	0
Purchases, issuances, sales, and settlements:
Purchases	11	11
Settlements	(13)	(4)
Fair value of plan assets at end of year	$ 12	$ 15