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v3.25.1

Income Taxes - Income Tax (Benefit) Provision from Continuing Operations (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Income before income taxes: |  |  |
U.S. | $ (131.5) | $ 555.5 | $ 674.7
Foreign | 170.4 | 1,810.4 | 2,235.0
Income before income taxes | 38.9 | 2,365.9 | 2,909.7
Current provision: |  |  |
U.S. Federal | 127.5 | 347.5 | 389.5
State | 0.0 | 20.0 | 5.0
Foreign | 55.2 | 118.7 | 72.0
Total current provision | 182.7 | 486.2 | 466.5
Deferred provision (benefit): |  |  |
U.S. Federal | (101.0) | (106.4) | 53.7
State | (5.5) | (12.3) | 4.6
Foreign | (36.8) | 91.5 | 147.2
Total deferred provision (benefit) | (143.3) | (27.2) | 205.5
Income tax provision | 39.4 | 459.0 | 672.0
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |
Computed expected income tax provision | 8.2 | 496.8 | 611.0
State income taxes, net of federal benefit | (2.1) | 15.7 | 8.6
Effects of foreign operations - rate differential | (19.2) | (149.3) | (184.0)
Effects of foreign operations - other, net of foreign tax credits | 55.0 | 212.2 | 258.9
Foreign-derived intangible income (FDII) | (3.1) | (3.6) | 0.0
Business realignment of intellectual property rights | 5.7 | 0.4 | 0.0
Change in uncertain tax positions | 45.1 | 5.8 | 50.6
Share-based compensation | (14.1) | (8.4) | (11.4)
R&D tax credits | (60.1) | (69.8) | (63.8)
Income tax holidays | (12.0) | (22.5) | (26.7)
Nondeductible Expenses | 6.0 | 7.7 | 9.4
Other | 13.4 | 2.6 | 10.3
Change in valuation allowance | 16.6 | (28.6) | 9.1
Income tax provision | $ 39.4 | $ 459.0 | $ 672.0

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