PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Defined Contribution Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost	$ 8	$ 7	$ 9
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	5.00%
Automatic Non-Elective Contribution
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	4.00%