CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Net sales	$ 1,241.3	$ 2,288.6
Cost of sales	504.4	730.2
Gross profit	736.9	1,558.4
Research and development	241.7	298.5
Selling, general and administrative	150.5	203.6
Amortization of acquired intangible assets	123.0	151.5
Special charges and other, net	2.6	1.7
Operating expenses	517.8	655.3
Operating income	219.1	903.1
Interest income	2.8	1.5
Interest expense	(61.8)	(47.2)
Loss on settlement of debt	0.0	(9.1)
Other income (loss), net	1.7	0.0
Income before income taxes	161.8	848.3
Income tax provision	32.5	181.9
Net income	$ 129.3	$ 666.4
Basic net income per common share (in dollars per share)	$ 0.24	$ 1.22
Diluted net income per common share (in dollars per share)	0.24	1.21
Dividends declared per common share (in dollars per share)	$ 0.452	$ 0.383
Basic common shares outstanding (in shares)	536.7	545.1
Diluted common shares outstanding (in shares)	542.8	551.4