Segment Information - Net Sales and Gross Profit (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Segment reporting information [Line Items]
Net Sales	$ 2,169.2	$ 1,757.5	$ 6,206.0	$ 4,976.7
Gross Profit	1,470.8	1,153.3	4,178.6	3,229.2
Semiconductor products
Segment reporting information [Line Items]
Net Sales	2,124.8	1,725.5	6,078.7	4,884.5
Gross Profit	1,426.4	1,121.3	4,051.3	3,137.0
Technology licensing
Segment reporting information [Line Items]
Net Sales	44.4	32.0	127.3	92.2
Gross Profit	$ 44.4	$ 32.0	$ 127.3	$ 92.2

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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