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Goodwill and other intangible assets - Schedule of Identifiable Intangible Assets (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Finite-lived intangible assets: |  |
Gross carrying amounts | $ 55,229 | $ 35,596
Accumulated amortization | (23,806) | (20,525)
Other intangible assets, net | 31,423 | 15,071
Indefinite-lived intangible assets: |  |
Identifiable intangible assets | 56,447 | 36,605
Accumulated amortization | (23,806) | (20,525)
Identifiable intangible assets, net | 32,641 | 16,080
IPR&D |  |
Indefinite-lived intangible assets: |  |
Indefinite-lived intangible assets | 1,218 | 1,009
Developed-product-technology rights |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 48,631 | 29,028
Accumulated amortization | (18,049) | (15,045)
Other intangible assets, net | 30,582 | 13,983
Licensing rights |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 3,865 | 3,864
Accumulated amortization | (3,265) | (3,123)
Other intangible assets, net | 600 | 741
Marketing-related rights |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 1,339 | 1,326
Accumulated amortization | (1,264) | (1,167)
Other intangible assets, net | 75 | 159
R&D technology rights |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 1,394 | 1,378
Accumulated amortization | (1,228) | (1,190)
Other intangible assets, net | $ 166 | $ 188

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