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Goodwill and other intangible assets (Tables) | 12 Months Ended
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Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The changes in the carrying amounts of goodwill were as follows (in millions):
| December 31,
| 2023 |  | 2022
Beginning balance | $ | 15,529 |  |  | $ | 14,890 |
Changes to goodwill resulting from acquisitions and divestitures, net(1) | 3,089 |  |  | 651 |
Currency translation adjustments | 11 |  |  | (12) |
Ending balance | $ | 18,629 |  |  | $ | 15,529 |
____________ (1) For 2023, the increase to Goodwill was primarily due to goodwill resulting from the acquisition of Horizon. For 2022, the increase to goodwill was due to goodwill resulting from the acquisition of ChemoCentryx, changes to the acquisition date fair values of net assets acquired in the acquisition of Teneobio and the nonstrategic Gensenta divestiture. See Note 3, Acquisitions and divestitures.
Schedule of Identifiable Intangible Assets | Other intangible assets consisted of the following (in millions):
| December 31,
| 2023 |  | 2022
| 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 | $ | 48,631 |  |  | $ | (18,049) |  |  | $ | 30,582 |  |  | $ | 29,028 |  |  | $ | (15,045) |  |  | $ | 13,983 |
Licensing rights | 3,865 |  |  | (3,265) |  |  | 600 |  |  | 3,864 |  |  | (3,123) |  |  | 741 |
Marketing-related rights | 1,339 |  |  | (1,264) |  |  | 75 |  |  | 1,326 |  |  | (1,167) |  |  | 159 |
R&D technology rights | 1,394 |  |  | (1,228) |  |  | 166 |  |  | 1,378 |  |  | (1,190) |  |  | 188 |
Total finite-lived intangible assets | 55,229 |  |  | (23,806) |  |  | 31,423 |  |  | 35,596 |  |  | (20,525) |  |  | 15,071 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |
IPR&D | 1,218 |  |  | — |  |  | 1,218 |  |  | 1,009 |  |  | — |  |  | 1,009 |
Total other intangible assets | $ | 56,447 |  |  | $ | (23,806) |  |  | $ | 32,641 |  |  | $ | 36,605 |  |  | $ | (20,525) |  |  | $ | 16,080 |

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