REPOSITIONING AND OTHER CHARGES - Repositioning Reserves (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Restructuring Reserve [Roll Forward]
Balance at beginning of period	$ 411
Charges	147	$ 119
Usage - cash	(69)
Usage - noncash	(123)
Foreign currency translation	(1)
Adjustments	(15)
Balance at end of period	350
Severance Costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	289
Charges	7
Usage - cash	(48)
Usage - noncash	0
Foreign currency translation	(1)
Adjustments	(14)
Balance at end of period	233
Asset impairments
Restructuring Reserve [Roll Forward]
Balance at beginning of period	0
Charges	123
Usage - cash	0
Usage - noncash	(123)
Foreign currency translation	0
Adjustments	0
Balance at end of period	0
Exit costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	122
Charges	17
Usage - cash	(21)
Usage - noncash	0
Foreign currency translation	0
Adjustments	(1)
Balance at end of period	$ 117