PENSION AND OTHER POSTRETIREMENT BENEFITS - Accumulated Other Comprehensive (Income) Loss Associated With Other Postretirement Benefit Plans (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Pension ongoing income—non-service | U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Prior service (credit) cost	$ (50)	$ (92)
Net actuarial (gain) loss	814	492
Net amount recognized	764	400
Pension ongoing income—non-service | Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Prior service (credit) cost	18	20
Net actuarial (gain) loss	360	397
Net amount recognized	378	417
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Prior service (credit) cost	(50)	(92)
Net actuarial (gain) loss	(84)	(34)
Net amount recognized	$ (134)	$ (126)