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Goodwill and other intangible assets - Identifiable Intangible Assets (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Finite-lived intangible assets: |  |
Gross carrying amounts | $ 32,099 | $ 32,018
Accumulated amortization | (17,987) | (15,461)
Other intangible assets, net | 14,112 | 16,557
Indefinite-lived intangible assets: |  |
Identifiable intangible assets | 33,169 | 32,048
Accumulated amortization | (17,987) | (15,461)
Identifiable intangible assets, net | 15,182 | 16,587
IPR&D |  |
Indefinite-lived intangible assets: |  |
Indefinite-lived intangible assets | 1,070 | 30
Developed Technology Rights |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 25,561 | 25,591
Accumulated amortization | (12,769) | (10,564)
Other intangible assets, net | 12,792 | 15,027
Licensing rights |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 3,807 | 3,743
Accumulated amortization | (2,973) | (2,791)
Other intangible assets, net | 834 | 952
Marketing-related rights [Member] |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 1,354 | 1,367
Accumulated amortization | (1,112) | (1,041)
Other intangible assets, net | 242 | 326
R&D technology rights [Member] |  |
Finite-lived intangible assets: |  |
Gross carrying amounts | 1,377 | 1,317
Accumulated amortization | (1,133) | (1,065)
Other intangible assets, net | $ 244 | $ 252

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