EMPLOYEE BENEFITS - Postretirement Benefits (Details) - Postretirement Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Postretirement Benefits
Service cost	$ 2	$ 4	$ 5
Interest cost	5	4	3
Expected return on assets	(6)	(8)	(8)
Amortization of prior service credits	(10)	(10)	(9)
Amortization of unrecognized gains	(7)	(9)	(8)
Net periodic (benefits) costs	(16)	(19)	(17)
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	112	153
Service cost	2	4	5
Interest cost	5	4	3
Plan participants' contributions	3	3
Actuarial loss (gains)	2	(40)
Benefits paid	(10)	(12)
Benefit obligation at end of year	114	112	153
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets available for benefits at beginning of year	162	207
Actual returns on plan assets	18	(36)
Plan participants' contributions	3	3
Benefits paid	(10)	(12)
Plan assets available for benefits at end of year	173	162	$ 207
Noncurrent postretirement benefit asset	59	50
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract]
Prior service credit	23	33
Unrecognized gains	79	77
Deferred tax liability	(25)	(28)
Net accumulated gains	$ 77	$ 82
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	4.92%	2.57%	2.17%
Long-term rate of return on plan assets – net of tax	4.04%	4.04%	4.04%
Pre age 65	7.50%	6.50%	5.81%
Ultimate healthcare cost trend rate	4.50%	4.50%	4.50%
Year ultimate healthcare cost trend rate reached	2033	2030	2026
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	4.73%	4.92%	2.57%
Expected long-term rate of return on plan assets – net of tax	4.04%	4.04%	4.04%
Pre age 65	7.20%	7.50%	6.50%
Year ultimate healthcare cost trend rate reached	2033	2033	2030
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
2024	$ 9
2025	10
2026	10
2027	9
2028	8
2029-2033	41
Total	$ 87