PENSION AND OTHER POST-EMPLOYMENT BENEFIT PLANS - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 5	$ 8	$ 11	$ 18
Interest cost	29	26	59	53
Expected return on plan assets	(30)	(41)	(60)	(80)
Amortization of actuarial loss	11	23	19	47
Amortization of prior service cost (credit)	1	0	1	1
Total net periodic benefit cost	16	16	30	39
Other Post-Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Interest cost	1	1	2	2
Amortization of actuarial loss	1	2	1	3
Amortization of prior service cost (credit)	(1)	0	(1)	0
Total net periodic benefit cost	$ 1	$ 3	$ 2	$ 5