Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Net revenue	$ 6,991	$ 5,629	$ 5,537
Cost of Revenue	1,859	1,494	1,369
Gross profit	5,132	4,135	4,168
Operating Expenses [Abstract]
Research and development	2,186	1,778	1,559
Marketing and sales	961	689	631
General and administrative	673	592	506
Acquisition-related contingent consideration	0	0	5
Amortization of intangibles	183	30	22
Total operating expenses	4,003	3,089	2,723
Operating income	1,129	1,046	1,445
Interest and other income (expense), net	(48)	(29)	63
Income before provision for (benefit from) income taxes	1,081	1,017	1,508
Provision for (benefit from) income taxes	292	180	(1,531)
Net income	$ 789	$ 837	$ 3,039
Earnings Per Share [Abstract]
Basic	$ 2.78	$ 2.90	$ 10.37
Diluted	$ 2.76	$ 2.87	$ 10.30
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic	284	289	293
Diluted	286	292	295