PENSION AND OTHER POSTRETIREMENT BENEFITS (Estimated Future Benefit Payments) (Details) $ in Millions	Dec. 31, 2021 USD ($)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	$ 277
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	251
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	248
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	245
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	241
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	1,132
Total estimated future benefit payments	2,394
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	13
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	13
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	12
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	13
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	13
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	55
Total estimated future benefit payments	$ 119