PENSION AND OTHER POST-EMPLOYMENT BENEFIT PLANS - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 4	$ 5
Interest cost	30	29
Expected return on plan assets	(26)	(31)
Amortization of actuarial loss	14	11
Total net periodic benefit cost	22	14
Other Post-Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Interest cost	1	1
Amortization of actuarial loss	0	1
Total net periodic benefit cost	$ 1	$ 2