Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net revenue	$ 1,151	$ 1,348	$ 2,610	$ 2,557
Cost of revenue	286	405	574	592
Gross profit	865	943	2,036	1,965
Operating expenses:
Research and development	421	387	859	768
Marketing and sales	156	152	277	262
General and administrative	133	128	269	238
Acquisition-related contingent consideration	0	2	0	3
Amortization of intangibles	6	6	11	11
Total operating expenses	716	675	1,416	1,282
Operating income (loss)	149	268	620	683
Interest and other income (expense), net	(10)	16	(13)	37
Income before provision for income taxes	139	284	607	720
Provision for income taxes	(46)	(570)	57	(1,555)
Net income (loss)	$ 185	$ 854	$ 550	$ 2,275
Earnings (loss) per share:
Earnings Per Share, Basic	$ 0.64	$ 2.89	$ 1.90	$ 7.69
Earnings Per Share, Diluted	$ 0.63	$ 2.89	$ 1.88	$ 7.66
Number of shares used in computation:
Basic	289	295	289	296
Diluted	293	296	292	297