PENSION AND OTHER POST-EMPLOYMENT BENEFIT PLANS - Net Periodic Benefit Cost and Assumptions used to Estimate our Net Periodic Benefit Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 23	$ 36	$ 42
Interest cost	118	106	98
Expected return on plan assets	(119)	(160)	(204)
Amortization of actuarial loss	40	93	115
Amortization of prior service cost (credit)	1	3	3
Settlement charges	0	205	0
Net periodic benefit cost	$ 63	$ 283	$ 54
Discount rate			2.50%
Expected return on assets	6.50%	5.00%	6.00%
Lump sum or installment distributions election	70.00%	60.00%	60.00%
Pension | Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.30%	2.90%
Rate of compensation increase	1.00%	2.00%	2.00%
Pension | Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.40%	3.10%
Rate of compensation increase	13.00%	13.00%	13.00%
Other Post-employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0
Interest cost	5	3	3
Expected return on plan assets	0	0	0
Amortization of actuarial loss	1	5	5
Amortization of prior service cost (credit)	(1)	(1)	(1)
Settlement charges	0	0	0
Net periodic benefit cost	$ 5	$ 7	$ 7
Other Post-employment Benefits | Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.30%	2.60%	2.10%
Weighted health care cost trend rate assumed	4.50%	4.50%	4.50%
Other Post-employment Benefits | Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.40%	3.00%	2.40%
Weighted health care cost trend rate assumed	5.70%	6.20%	6.80%