PENSION AND OTHER POST-EMPLOYMENT BENEFIT PLANS - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 9	$ 11	$ 27	$ 32
Interest cost	27	24	80	73
Expected return on plan assets	(40)	(51)	(120)	(153)
Amortization of actuarial loss	23	29	70	86
Amortization of prior service cost (credit)	1	1	2	2
Total net periodic benefit cost	20	14	59	40
Other Post-Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Interest cost	0	0	2	2
Amortization of actuarial loss	1	2	4	4
Amortization of prior service cost (credit)	0	0	0	0
Total net periodic benefit cost	$ 1	$ 2	$ 6	$ 6