v3.25.1
INCOME TAXES - Current Income Tax (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Components of (loss) income before income taxes      
Domestic $ (2,471.1) $ (2,081.8) $ (937.0)
Foreign (2,020.2) (1,621.0) (401.1)
Loss before income taxes (4,491.3) (3,702.8) (1,338.1)
Current:      
U.S. federal 0.2 23.0 70.2
U.S. state and local 11.5 12.4 3.3
Foreign 115.0 107.5 98.0
Total current income taxes 126.7 142.9 171.5
Deferred:      
U.S. federal (55.3) 24.6 (175.4)
U.S. state and local 0.0 (22.6) (31.4)
Foreign (83.8) (103.5) (178.1)
Total deferred income taxes (139.1) (101.5) (384.9)
(Benefit from) provision for income taxes $ (12.4) $ 41.4 $ (213.4)
Reconciliation of effective tax rate to the U.S. statutory federal income tax rate      
U.S. federal statutory rate 21.00% 21.00% 21.00%
State and local taxes, net of U.S. federal benefit 0.40% 0.60% 2.00%
Foreign tax rate differential (0.20%) 0.20% (0.30%)
Foreign earnings (0.50%) (1.50%) (1.30%)
Tax credits 1.20% 1.70% 5.70%
Excess tax benefits from stock-based compensation 0.20% (0.10%) (0.50%)
Earn-out adjustments 0.00% 0.10% (0.40%)
Valuation allowance—domestic (5.00%) (9.10%) (6.30%)
Valuation allowance—foreign (0.60%) (1.10%) (0.10%)
Nondeductible compensation (0.10%) (0.10%) (0.90%)
Global intangible low-taxed income (0.50%) (1.00%) (3.10%)
Foreign-derived intangible net 0.30% 0.50% 1.80%
Change in reserves 0.00% 0.90% (0.10%)
Goodwill impairment (0.160) (0.128) 0
Other 0.10% (0.40%) (1.60%)
Effective tax rate 0.30% (1.10%) 15.90%
Tax expense (benefit) from change in deferred tax assets   $ 29.2 $ (5.6)
Nondeductible expense     $ 8.2