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Goodwill and other intangible assets (Tables)
 9 Months Ended
Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of goodwill
The change in the carrying amount of goodwill was as follows (in millions):
Nine months ended
September 30, 2021
Beginning balance$14,689 
Currency translation adjustment(24)
Ending balance$14,665 
Schedule of identifiable intangible assets
Other intangible assets consisted of the following (in millions):
 September 30, 2021December 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 rights3,766 (2,931)835 3,743 (2,791)952 
Marketing-related rights1,362 (1,099)263 1,367 (1,041)326 
Research and development technology rights1,298 (1,120)178 1,317 (1,065)252 
Total finite-lived intangible assets32,001 (17,372)14,629 32,018 (15,461)16,557 
Indefinite-lived intangible assets:
In-process research and development30 — 30 30 — 30 
Total other intangible assets$32,031 $(17,372)$14,659 $32,048 $(15,461)$16,587