SEGMENT REPORTING - Geographic Information of Property, Plant and Equipment (Countries Accounting for More Than 10% of Net Property, Plant and Equipment) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment reporting information
Property and equipment, net	$ 2,097	$ 2,216
Mexico
Segment reporting information
Property and equipment, net	553	555
U.S.
Segment reporting information
Property and equipment, net	361	378
China
Segment reporting information
Property and equipment, net	$ 331	$ 396
Long Lived Assets | Mexico
Segment reporting information
Concentration risk percentage	26.00%	25.00%
Long Lived Assets | U.S.
Segment reporting information
Concentration risk percentage	17.00%	17.00%
Long Lived Assets | China
Segment reporting information
Concentration risk percentage	16.00%	18.00%