BENEFIT PLANS - OTHER CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS RECOGNIZED IN AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Retirement Benefits [Abstract]
Net actuarial (gains) losses	$ (17)	$ 37	$ (125)
Amortization	(1)	1	(7)
Total recognized in AOCI	(18)	38	(132)
Total recognized in net periodic benefit cost and AOCI	$ 1	$ 55	$ (113)