TRANSACTIONS WITH FORMER PARENT - Allocation of Corporate Expenses (Details) - IBM - Management Costs And Corporate Support Services - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Allocation of corporate expenses	$ 0	$ 0	$ 652
Other (income) and expense.
Related Party Transaction [Line Items]
Allocation of corporate expenses			3
Interest expense.
Related Party Transaction [Line Items]
Allocation of corporate expenses			32
Selling, general and administrative expense.
Related Party Transaction [Line Items]
Allocation of corporate expenses			$ 615