PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Defined Benefit Pension Plans [Member]
Service cost	$ 9	$ 8
Interest cost	23	19
Expected return on plan assets	57	51
Defined Benefit Plan, Amortization of Gain (Loss)	(27)	(30)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	0	7
Net periodic benefit cost (credit)	2	(1)
Other Postretirement Benefits [Member]
Interest cost	1	1
Defined Benefit Plan, Amortization of Gain (Loss)	2	1
Net periodic benefit cost (credit)	$ (1)	$ 0