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Certain Transactions - Other Transactions - Additional Information (Detail) - USD ($) $ in Millions |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 26, 2024 | Nov. 09, 2023 | Jun. 12, 2023 | Jan. 31, 2024 | Oct. 31, 2021 | Aug. 31, 2021 | Dec. 31, 2016 | Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021 | Jun. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2021 | Dec. 31, 2020 | Mar. 28, 2024 | Oct. 03, 2023 | Sep. 29, 2023
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of other asset impairment charges related to noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 49.00% |  |  |  |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax |  |  |  |  |  |  |  | $ 115 | $ 83 |  | $ 369 |  |  |  |  |  |  |  |  |  |  |
Other commitment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 150 |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  | 129 |  | $ 67 | 577 |  |  |  |  |  |  |  |  |  |  |
Additional milestone payment payable |  |  |  |  |  |  |  |  |  |  | $ 150 |  |  |  |  |  |  |  |  |  |  |
Sanofi [Member] | Collaborative Arrangement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Upfront payment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500 |  |  |  |  |
Milestone payment receivable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500 |
Development and launch milestone payment receivable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 |
Johnson And Johnson [Member] | Settlement And License Agreement Alvotech And Teva [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum entry date for granting license entry |  |  | Feb. 21, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Biolojic Design Ltd [Member] | Collaborative Arrangement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional development and milestone payments receivable |  |  |  |  |  |  |  | 500 |  |  |  |  |  |  |  | $ 500 |  |  |  |  |  |
Biolojic Design Ltd [Member] | Research and Development Expense [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone payment |  |  |  | $ 10 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty Pharma [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative agreement milestone payments |  | $ 100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of royalty payment |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative agreement milestone amount increase |  | $ 125 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty Pharma [Member] | Research and Development Expense [Member] | Collaborative Arrangement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reimbursement of research and development expenses incurred |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100 | 100 |  |  |  |  |
Takeda [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Upfront payment |  |  |  |  |  |  | $ 30 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone payment |  |  |  |  |  |  | $ 20 |  |  |  |  |  | $ 25 |  |  |  |  |  |  |  |  |
Teva's API business [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax |  |  |  |  |  |  |  | 34 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  |  |  | $ 275 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Abingworth [Member] | Research and Development Expense [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reimbursement of research and development expenses incurred |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 42 |  |  |  |  |  |
Teva [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of the investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 40
Alvotech [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative agreement milestone payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 380 |  |  |  |  |  |  |
Proceeds from available for sale debt securities | $ 44 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Alvotech [Member] | Research and Development Expense [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone payment |  |  |  |  |  |  |  |  | $ 19 | 27 |  |  |  |  |  |  | $ 78 | $ 78 | $ 78 |  |  |
mAbxience [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative agreement milestone payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 320 |  |  |  |  |  |
mAbxience [Member] | Research and Development Expense [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate upfront and milestone payments |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |  | $ 15 |  |  |  |  |  |
MedinCell [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone payment |  |  |  |  |  |  |  |  |  |  |  | $ 3 |  |  |  |  |  |  |  |  |  |
Collaborative agreement milestone payments |  |  |  |  |  | $ 105 |  |  |  | $ 117 |  |  |  |  |  |  |  |  |  |  |  |
MODAG [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License agreement potential aggregate milestone payments amount |  |  |  |  | $ 30 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
MODAG [Member] | Research and Development Expense [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone payment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10 |  |  |  |  |  |  |  |

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