PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Estimated Future Benefit Payments) (Details) $ in Millions	Dec. 31, 2023 USD ($)
Pension Plan [Member]
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	$ 1,493
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	1,359
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	1,374
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	1,393
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	1,416
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	7,160
Total	14,195
Other Postretirement Benefit Plans
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Defined Benefit Plan, Expected Future Benefit Payment, Year One	88
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	86
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	83
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	82
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	80
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	348
Total	$ 767