PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Pension Plan [Member]
Defined Benefit Plan Disclosures [Line Items]
Service cost	$ 70	$ 99
Interest cost	279	171
Expected return on plan assets	389	424
Amortization of prior service credit	(7)	(6)
Defined Benefit Plan, Amortization of (Gain) Loss	24	167
Net periodic benefit cost	(23)	7
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosures [Line Items]
Service cost	1	1
Interest cost	11	7
Defined Benefit Plan, Amortization of (Gain) Loss	(14)	(4)
Net periodic benefit cost	$ (2)	$ 4