EMPLOYEE BENEFITS - Schedule of Net Periodic (Income) Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3	$ 3	$ 3
Interest cost	37	34	40
Expected return on plan assets	(93)	(85)	(82)
Amortization of actuarial loss	14	17	17
Settlement	0	15	0
Net periodic pension (income) cost	(39)	(16)	(22)
Net actuarial loss (gain)	52	(74)	37
Amortization of net actuarial loss	(14)	(17)	(17)
Settlement	0	(15)	0
Total gain (loss) recognized in other comprehensive income (loss)	38	(106)	20
Total (loss) gain recognized in net periodic pension (income) cost and other comprehensive income (loss)	(1)	$ (122)	$ (2)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Other operating expense
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]			Other operating expense
Qualified Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	$ 3	$ 3
Interest cost	34	31	37
Expected return on plan assets	(93)	(85)	(82)
Amortization of actuarial loss	11	14	14
Settlement	0	15	0
Net periodic pension (income) cost	(45)	(22)	(28)
Net actuarial loss (gain)	71	(73)	29
Amortization of net actuarial loss	(11)	(14)	(14)
Settlement	0	(15)	0
Total gain (loss) recognized in other comprehensive income (loss)	60	(102)	15
Total (loss) gain recognized in net periodic pension (income) cost and other comprehensive income (loss)	15	(124)	(13)
Non-Qualified Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0
Interest cost	3	3	3
Expected return on plan assets	0	0	0
Amortization of actuarial loss	3	3	3
Settlement	0	0	0
Net periodic pension (income) cost	6	6	6
Net actuarial loss (gain)	(19)	(1)	8
Amortization of net actuarial loss	(3)	(3)	(3)
Settlement	0	0	0
Total gain (loss) recognized in other comprehensive income (loss)	(22)	(4)	5
Total (loss) gain recognized in net periodic pension (income) cost and other comprehensive income (loss)	$ (16)	$ 2	$ 11