EMPLOYEE BENEFIT PLANS - Components of Certain Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Retirement Benefits [Abstract]
Service cost	$ 2	$ 2
Interest cost	14	14
Expected return on assets	(39)	(38)
Prior Period Svc Cost Amortization	(1)	(1)
Actuarial (gain) loss	0	1
Net amortization	20	29
Net Periodic Pension Expense	$ (4)	$ 7