RESTRUCTURING CHARGES AND SEPARATION COSTS - Changes in Restructuring Liability (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restructuring Reserve [Roll Forward]
Balance at beginning of period	$ 918	$ 977
Additions	108	86
Payments	(137)	(87)
Effect of foreign currency and other	(4)	0
Ending balance	885	976
Restructuring reserve	885	976
Post-employment severance benefits
Restructuring Reserve [Roll Forward]
Ending balance	325	353
Restructuring reserve	$ 325	$ 353