| Schedule of identifiable intangible assets |
Other intangible assets consisted of the following (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | September 30, 2021 | | December 31, 2020 | | | 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 | $ | 25,575 | | | $ | (12,222) | | | $ | 13,353 | | | $ | 25,591 | | | $ | (10,564) | | | $ | 15,027 | | | Licensing rights | 3,766 | | | (2,931) | | | 835 | | | 3,743 | | | (2,791) | | | 952 | | | Marketing-related rights | 1,362 | | | (1,099) | | | 263 | | | 1,367 | | | (1,041) | | | 326 | | | Research and development technology rights | 1,298 | | | (1,120) | | | 178 | | | 1,317 | | | (1,065) | | | 252 | | | Total finite-lived intangible assets | 32,001 | | | (17,372) | | | 14,629 | | | 32,018 | | | (15,461) | | | 16,557 | | | Indefinite-lived intangible assets: | | | | | | | | | | | | | In-process research and development | 30 | | | — | | | 30 | | | 30 | | | — | | | 30 | | | Total other intangible assets | $ | 32,031 | | | $ | (17,372) | | | $ | 14,659 | | | $ | 32,048 | | | $ | (15,461) | | | $ | 16,587 | |
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