PROPERTY, PLANT AND EQUIPMENT AND OPERATING LEASES - Schedule of Property, Plant and Equipment and Depreciable Lives (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Original Cost	$ 31,904	$ 32,098
Right-of-use operating lease assets	2,606	2,852
Property, plant and equipment – net	$ 15,609	$ 16,699
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant and equipment – net	Property, plant and equipment – net
Land and improvements
Property, Plant and Equipment [Line Items]
Depreciable lives	8 years
Original Cost	$ 585	$ 602
Net Carrying Value	576	592
Buildings, structures and related equipment
Property, Plant and Equipment [Line Items]
Original Cost	8,311	8,295
Net Carrying Value	$ 3,728	3,841
Buildings, structures and related equipment | Minimum
Property, Plant and Equipment [Line Items]
Depreciable lives	8 years
Buildings, structures and related equipment | Maximum
Property, Plant and Equipment [Line Items]
Depreciable lives	40 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Original Cost	$ 21,036	21,151
Net Carrying Value	$ 7,356	7,968
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Depreciable lives	4 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Depreciable lives	20 years
Leasehold costs and manufacturing plant under construction
Property, Plant and Equipment [Line Items]
Original Cost	$ 1,971	2,051
Net Carrying Value	$ 1,343	$ 1,447
Leasehold costs and manufacturing plant under construction | Minimum
Property, Plant and Equipment [Line Items]
Depreciable lives	1 year
Leasehold costs and manufacturing plant under construction | Maximum
Property, Plant and Equipment [Line Items]
Depreciable lives	10 years