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Goodwill and other intangible assets - Identifiable Intangible Assets (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Finite-lived intangible assets: |  |
Gross carrying amounts | $ 35,596 | $ 32,099
Accumulated amortization | (20,525) | (17,987)
Other intangible assets, net | 15,071 | 14,112
Indefinite-lived intangible assets: |  |
Identifiable intangible assets | 36,605 | 33,169
Accumulated amortization | (20,525) | (17,987)
Identifiable intangible assets, net | 16,080 | 15,182
IPR&D |  |
Indefinite-lived intangible assets: |  |
Indefinite-lived intangible assets | 1,009 | 1,070
Developed Technology Rights |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 29,028 | 25,561
Accumulated amortization | (15,045) | (12,769)
Other intangible assets, net | 13,983 | 12,792
Licensing rights |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 3,864 | 3,807
Accumulated amortization | (3,123) | (2,973)
Other intangible assets, net | 741 | 834
Marketing-related rights [Member] |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 1,326 | 1,354
Accumulated amortization | (1,167) | (1,112)
Other intangible assets, net | 159 | 242
R&D technology rights [Member] |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 1,378 | 1,377
Accumulated amortization | (1,190) | (1,133)
Other intangible assets, net | $ 188 | $ 244

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