EQUITY - AOCI Rollforward (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) (net of tax)
Balance at the beginning of the period	$ 1,746	$ 5,539	$ 2,711	$ 4,902
Other comprehensive income (loss), net of tax	265	470	(214)	375
Balance at the end of the period	1,930	2,767	1,930	2,767
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) (net of tax)
Balance at the beginning of the period	(1,567)	(1,614)	(1,089)	(1,182)
Net transfers from Parent				(338)
Other comprehensive income (loss), net of tax	265	470	(214)	375
Balance at the end of the period	(1,303)	(1,143)	(1,303)	(1,143)
Unrealized Gains (Losses) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) (net of tax)
Balance at the beginning of the period	(1)	3	3
Other comprehensive income (loss), net of tax	(2)	1	(6)	3
Balance at the end of the period	(3)	3	(3)	3
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) (net of tax)
Balance at the beginning of the period	(1,223)	(1,084)	(735)	(974)
Other comprehensive income (loss), net of tax	260	400	(229)	290
Balance at the end of the period	(963)	(684)	(963)	(684)
Net Change Retirement-Related Benefit Plans
Accumulated Other Comprehensive Income (Loss) (net of tax)
Balance at the beginning of the period	(343)	(534)	(357)	(208)
Net transfers from Parent				(338)
Other comprehensive income (loss), net of tax	7	70	21	84
Balance at the end of the period	$ (336)	$ (463)	$ (336)	$ (463)