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Share-Based Compensation - Share-Based Compensation Expense (Details) - USD ($) $ in Millions | 3 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Pre-tax effect of share-based compensation | $ 41.2 | $ 56.6
Income tax benefit | 8.8 | 12.0
Net income effect of share-based compensation | 32.4 | 44.6
Inventory |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Capitalized share-based compensation expense | 4.8 | 5.6
Share-based compensation expense previously capitalized | 7.7 | 8.8
Cost of sales |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Pre-tax effect of share-based compensation | 7.7 | 8.8
Research and development |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Pre-tax effect of share-based compensation | 20.1 | 26.6
Selling, general and administrative |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Pre-tax effect of share-based compensation | $ 13.4 | $ 21.2

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