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Goodwill and other intangible assets (Tables) | 9 Months Ended
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Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The change in the carrying amount of goodwill was as follows (in millions):
Balance at January 1, 2024 | $ | 18,629 |
Adjustments to goodwill resulting from acquisitions (1) | 25 |
Foreign currency translation adjustments | 4 |
Balance at September 30, 2024 | $ | 18,658 |
____________ (1) For the nine months ended September 30, 2024, adjustments to goodwill consisted of measurement period adjustments related to our Horizon acquisition. See Note 2, Acquisitions.
Schedule of Identifiable Intangible Assets | Other intangible assets consisted of the following (in millions):
| September 30, 2024 |  | December 31, 2023
| Gross carrying amounts |  | Accumulated amortization |  | Other intangible assets, net |  | Gross carrying amounts |  | Accumulated amortization |  | Other intangible assets, net
Finite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |
Developed-product-technology rights | $ | 48,636 |  |  | $ | (21,472) |  |  | $ | 27,164 |  |  | $ | 48,631 |  |  | $ | (18,049) |  |  | $ | 30,582 |
Licensing rights | 3,864 |  |  | (3,360) |  |  | 504 |  |  | 3,865 |  |  | (3,265) |  |  | 600 |
Marketing-related rights | 1,203 |  |  | (1,188) |  |  | 15 |  |  | 1,339 |  |  | (1,264) |  |  | 75 |
Research and development technology rights | 1,400 |  |  | (1,253) |  |  | 147 |  |  | 1,394 |  |  | (1,228) |  |  | 166 |
Total finite-lived intangible assets | 55,103 |  |  | (27,273) |  |  | 27,830 |  |  | 55,229 |  |  | (23,806) |  |  | 31,423 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |
In-process research and development | 1,090 |  |  | — |  |  | 1,090 |  |  | 1,218 |  |  | — |  |  | 1,218 |
Total other intangible assets | $ | 56,193 |  |  | $ | (27,273) |  |  | $ | 28,920 |  |  | $ | 56,447 |  |  | $ | (23,806) |  |  | $ | 32,641 |

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