INCOME TAXES - Income tax reconciliation (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income taxes at U.S. statutory rate of 21%		$ 166	$ 203	$ 266
Valuation allowance adjustments, net		39	53	(2)
Net tax on remittance of foreign earnings	$ 49	43	93	22
Foreign rate differentials		36	21	35
U.S. tax on non-U.S. earnings		12	11	15
State taxes, net of federal benefit		5	12	3
Derecognition of Morse TEC		0	0	137
Tax credits		(5)	(12)	(17)
Affiliates' earnings		(10)	(4)	(7)
Changes in accounting methods and filing positions		(18)	(18)	(7)
Reserve adjustments, settlements and claims		(17)	45	46
Impact of tax law and rate change		(20)	0	0
Tax holidays		(76)	(36)	(26)
Research and development super deduction		(27)	(9)	(5)
Other, net		22	38	8
Provision for income taxes		$ 150	$ 397	$ 468