EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pension Benefits
Components of Net Periodic Benefit Plan Cost
Service Cost	$ 3	$ 5	$ 6	$ 10
Non-Service Cost
Interest Cost	6	4	11	8
Expected Return on Plan Assets	(7)	(10)	(14)	(19)
Amortization of Net Loss	1	2	2	4
Net Periodic Benefit Cost	3	1	5	3
Other Postretirement Benefits
Components of Net Periodic Benefit Plan Cost
Service Cost	1	2	2	3
Non-Service Cost
Interest Cost	1	1	2	1
Expected Return on Plan Assets	(1)	(1)	(1)	(1)
Amortization of Net Loss	0	0	0	0
Net Periodic Benefit Cost	$ 1	$ 2	$ 3	$ 3