CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 940	$ 613	$ 88
Other comprehensive income (loss):
Foreign currency translation adjustments, net of zero tax	(39)	56	(24)
Unrealized gain (loss) on derivative instruments and other, net of tax	(24)	40	(40)
Comprehensive income	877	709	24
Comprehensive income attributable to redeemable noncontrolling interest	4	0	0
Comprehensive income attributable to Flex Ltd.	$ 873	$ 709	$ 24