CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 1,033	$ 940	$ 613
Other comprehensive income (loss):
Foreign currency translation adjustments, net of zero tax	(64)	(39)	56
Unrealized gain (loss) on derivative instruments and other, net of tax	52	(24)	40
Comprehensive income	1,021	877	709
Comprehensive income attributable to noncontrolling interest and redeemable noncontrolling interest	240	4	0
Comprehensive income attributable to Flex Ltd.	$ 781	$ 873	$ 709