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Acquisitions - Preliminaty Purchase Price Allocation (Details) - USD ($) $ in Millions | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Sep. 30, 2024 | Mar. 31, 2024 | Jul. 02, 2024 | Dec. 31, 2023 | Sep. 26, 2023
Business Acquisition [Line Items] |  |  |  |  |
Goodwill | $ 6,485.8 |  |  | $ 6,219.2 |
Reata Pharmaceuticals, Inc |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash and cash equivalents | 267.3 |  |  |  |
Accounts receivable | 15.9 |  |  |  |
Inventory | 1,259.0 |  |  |  | $ 1,300.0
Other current assets(1) | 54.6 |  |  |  |
Operating lease assets | 121.2 |  |  |  | 121.2
Accrued expense and other(1) | (110.3) |  |  |  |
Debt payable | (159.9) |  |  |  |
Contingent payable to Blackstone | (300.0) |  |  |  |
Deferred tax liabilities | (909.3) |  |  |  |
Operating lease liabilities | (151.8) |  |  |  | (151.8)
Other assets and liabilities, net | (2.5) |  |  |  |
Total identifiable net assets | 6,724.2 |  |  |  |
Goodwill | 469.2 |  |  |  | 469.2
Total assets acquired and liabilities assumed | 7,193.4 |  |  |  |
Adjustment, accrued expense and other | 3.9 | $ 4.9 |  |  |
Deferred tax liability | 7.2 | 4.1 |  |  |
Adjustment, goodwill | 4.3 | $ 9.0 |  |  |
Other current assets | 1.0 |  |  |  |
Reata Pharmaceuticals, Inc | Completed technology for SKYCLARYS (U.S.) |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: | 4,200.0 |  |  |  | 4,200.0
Reata Pharmaceuticals, Inc | In-process research and development |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: | 2,300.0 |  |  |  | 2,300.0
Reata Pharmaceuticals, Inc | Priority review voucher |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: | 100.0 |  |  |  | 100.0
Reata Pharmaceuticals, Inc | Other clinical programs |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: | 40.0 |  |  |  | $ 40.0
Human Immunology Biosciences |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash and cash equivalents |  |  | $ 62.5 |  |
Intangible assets: |  |  | 1,600.0 |  |
Prepaid expense and other assets |  |  | 1.0 |  |
Operating lease assets |  |  | 1.2 |  |
Accounts payable |  |  | (1.1) |  |
Accrued liabilities |  |  | (35.0) |  |
Deferred tax liabilities |  |  | (304.4) |  |
Operating lease liabilities |  |  | (1.2) |  |
Total identifiable net assets |  |  | 1,365.9 |  |
Goodwill |  |  | 256.5 |  |
Total assets acquired and liabilities assumed |  |  | 1,622.4 |  |
Human Immunology Biosciences | Felzartamab (IgAN) |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: |  |  | 920.0 |  |
Human Immunology Biosciences | Felzartamab (AMR) |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: |  |  | 450.0 |  |
Human Immunology Biosciences | Felzartamab (PMN) |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: |  |  | 265.0 |  |
Human Immunology Biosciences | In-process research and development |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: | $ 1,600.0 |  |  |  |
Human Immunology Biosciences | In-process research and development | Felzartamab (IgAN) |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: |  |  | 920.0 |  |
Human Immunology Biosciences | In-process research and development | Felzartamab (AMR) |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: |  |  | 450.0 |  |
Human Immunology Biosciences | In-process research and development | Felzartamab (PMN) |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: |  |  | 265.0 |  |
Human Immunology Biosciences | Other clinical programs |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets: |  |  | $ 7.9 |  |

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