PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Pension Plan [Member]
Defined Benefit Plan Disclosures [Line Items]
Service cost	$ 71	$ 97	$ 212	$ 295
Interest cost	280	170	838	512
Expected return on plan assets	391	420	1,170	1,267
Amortization of prior service credit	(7)	(5)	(20)	(16)
Defined Benefit Plan, Amortization of (Gain) Loss	24	163	71	495
Net periodic benefit cost	(23)	5	(69)	19
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosures [Line Items]
Service cost	1	1	3	4
Interest cost	11	6	34	20
Defined Benefit Plan, Amortization of (Gain) Loss	(14)	(3)	(43)	(11)
Net periodic benefit cost	$ (2)	$ 4	$ (6)	$ 13