RELATED PARTY TRANSACTIONS - Net Parent Investment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Net proceeds	$ 900
IBM
Related Party Transaction [Line Items]
Cash pooling and general financing activities/other	(445)	$ (4,165)	$ (4,390)
Allocation of Parent's corporate expenses/other	1,255	1,668	1,610
Related party sales and purchases	2,440	2,991	2,944
Related party intangible assets fee	63	80	38
Income taxes	716	297	397
Issuance of common stock and reclassification of net parent investment	(4,029)
Total Net transfers (to) from Parent per Combined Statement of Equity		872	598
Income taxes	(716)	(297)	(397)
Allocation of Parent's stock-based compensation	(58)	(64)	(51)
Other	744	(133)	(132)
Total Net transfers (to) from Parent per Combined Statement of Cash Flows	$ (30)	$ 377	$ 18