RESTRUCTURING CHARGES - Liabilities Related to Restructuring (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended		24 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2022
Restructuring Reserve [Roll Forward]
Balance at beginning of period	$ 104	$ 142	$ 142	$ 0
Liability recognized	18	16	78	214	$ 310
Payments, utilization and translation	(26)		(116)	(72)
Balance at end of period	96		104	142	96
Workforce reductions
Restructuring Reserve [Roll Forward]
Balance at beginning of period	96	139	139	0
Liability recognized	5	2	21	172
Payments, utilization and translation	(12)		(64)	(33)
Balance at end of period	89		96	139	89
Plant closing and other
Restructuring Reserve [Roll Forward]
Balance at beginning of period	8	3	3	0
Liability recognized	13	$ 14	57	42
Payments, utilization and translation	(14)		(52)	(39)
Balance at end of period	$ 7		$ 8	$ 3	$ 7