Deferred Tax Assets, Tax Credit Carryforwards, Foreign, Refundable

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Income Tax Holiday, Income Tax Benefits Per Share, Basic

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Income Tax Holiday, Income Tax Benefits Per Share, Diluted

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Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Liability, Expected

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- Definition

Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Percentage of Liability Payable, Year Eight

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- Definition

Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Percentage of Liability Payable, Year One Through Five

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Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Percentage of Liability Payable, Year Seven

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Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Percentage of Liability Payable, Year Six

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- Definition

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards.

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Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards.

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The amount of income taxes from which a reporting entity is exempt or for which it will receive a reduction in income taxes as a result of the income tax holiday granted by the taxing jurisdiction.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in domestic income tax contingency.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of tax liability from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act.

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Amount of tax liability from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act, classified as current.

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Amount of unrecognized tax benefits.

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Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Taxes - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income tax holiday, aggregate dollar amount	$ 22.5	$ 11.1
Income tax holiday, benefits per share, basic (in dollars per share)	$ 0.04	$ 0.04
Income tax holiday, benefits per share, diluted (in dollars per share)	$ 0.04	$ 0.04
Operating Loss Carryforwards [Line Items]
Capital loss carryforward	$ 9.8	$ 6.3
Refundable foreign tax credits	0.7
Tax credits, research activity	79.5
Tax credits, prior year	0.1
Tax credits, foreign jurisdictions	42.0
TCJA expected transition tax on accumulated unrepatriated foreign earnings					$ 290.3
TCJA transition tax on accumulated unrepatriated foreign earnings payable	197.4
TCJA transition tax on accumulated unrepatriated foreign earnings payable in next 12 months	23.2
TCJA transition tax for accumulated foreign earnings, percentage of liability payable each year for fiscal 2019 through fiscal 2023					8.00%
TCJA transition tax for accumulated foreign earnings, percentage of liability payable in fiscal 2024					15.00%
TCJA transition tax for accumulated foreign earnings, percentage of liability payable in fiscal 2025					20.00%
TCJA transition tax for accumulated foreign earnings, percentage of liability payable in fiscal 2026					25.00%
Unrecognized tax benefits, income tax penalties accrued	72.7	83.9
Unrecognized tax benefits, income tax penalties and interest expense	11.2	9.3	$ 13.5
Unrecognized Tax Benefits	804.1	826.3	$ 757.3	$ 763.4
Unrecognized tax benefits that would impact effective tax rate	692.3	$ 720.5
Unrecognized tax benefits, potential decrease	10.0
Cumulative income tax expense impact of Altera decision	22.2
Foreign Tax Authority and Federal and State Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	77.0
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Tax credit carryforward, amount	164.4
Foreign Tax Authority \| Foreign Withholding Tax Credit
Operating Loss Carryforwards [Line Items]
Tax credit carryforward, amount	$ 19.9