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Goodwill and other intangible assets (Tables) | 9 Months Ended
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Sep. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The change in the carrying amount of goodwill was as follows (in millions):
Balance at December 31, 2024 | $ | 18,637 |
Foreign currency translation adjustments | 39 |
Balance at September 30, 2025 | $ | 18,676 |
Schedule of Other Intangible Assets | Other intangible assets consisted of the following (in millions):
| September 30, 2025 |  | December 31, 2024
| 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 | $ | 47,803 |  |  | $ | (25,884) |  |  | $ | 21,919 |  |  | $ | 48,611 |  |  | $ | (22,594) |  |  | $ | 26,017 |
Licensing rights | 3,875 |  |  | (3,490) |  |  | 385 |  |  | 3,875 |  |  | (3,392) |  |  | 483 |
Research and development technology rights | 1,421 |  |  | (1,296) |  |  | 125 |  |  | 1,374 |  |  | (1,235) |  |  | 139 |
Marketing-related rights | 1,202 |  |  | (1,202) |  |  | — |  |  | 1,202 |  |  | (1,202) |  |  | — |
Total finite-lived intangible assets | 54,301 |  |  | (31,872) |  |  | 22,429 |  |  | 55,062 |  |  | (28,423) |  |  | 26,639 |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |
In-process research and development | 710 |  |  | — |  |  | 710 |  |  | 1,060 |  |  | — |  |  | 1,060 |
Total other intangible assets | $ | 55,011 |  |  | $ | (31,872) |  |  | $ | 23,139 |  |  | $ | 56,122 |  |  | $ | (28,423) |  |  | $ | 27,699 |

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