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v3.22.4

Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021
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Deferred tax assets: |  |  |
Tax credits | $ 112.6 |  | $ 121.0
Inventory, other reserves and accruals | 202.8 |  | 199.4
Intangibles, net | 1,370.3 |  | 1,477.5
Neurimmune's tax basis in ADUHELM | 470.3 |  | 475.8
IRC Section 174 capitalized research and development | 271.8 |  | 0.0
Net operating loss | 1,845.9 |  | 1,973.0
Share-based compensation | 37.2 |  | 31.7
Other | 280.7 |  | 208.8
Valuation allowance | (2,003.3) | $ (85.0) | (1,961.3)
Total deferred tax assets | 2,588.3 |  | 2,525.9
Deferred tax liabilities: |  |  |
Purchased intangible assets | (76.1) |  | (256.6)
Samsung Bioepis investment installments | (138.0) |  | 0.0
GILTI | (1,002.0) |  | (1,037.6)
Tax credits | (228.7) |  | (260.2)
Depreciation, amortization and other | (251.8) |  | (250.9)
Total deferred tax liabilities | $ (1,696.6) |  | $ (1,805.3)

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