RELATED PARTY TRANSACTIONS - Net Parent Investment (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2021	Mar. 31, 2022
Related Party Transaction [Line Items]
Net parent investment	$ 6,040
IBM
Related Party Transaction [Line Items]
Net parent investment	6,000	$ 0
Amount of transfers from Parent	402
Non-cash transfers from parent	159
Net transfers from parent in statement of cash flows	$ 243