FINANCIAL ASSETS AND LIABILITIES - Effect of Hedge Activity on Income and Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Cost of services	$ 3,596	$ 3,999	$ 10,886	$ 12,233
Other expense (income)	30	19	16	13
Cost of services.
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) from Hedge Activity	(2)	1	(1)	1
Other expenses
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) from Hedge Activity	$ 43	$ 4	$ 27	$ 4