v3.21.1
Goodwill and Intangible Assets (Tables)
 3 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of changes in the carrying amount of goodwill
The following table summarizes the changes in the carrying amount of goodwill:
(in millions)
Balance as of December 31, 2020$33,124 
Measurement period adjustments(a)
(564)
Foreign currency translation adjustments(211)
Balance as of March 31, 2021$32,349 
(a) Measurement period adjustments relate to the acquisition of Allergan (see Note 4).
Summary of definite-lived intangible assets The following table summarizes intangible assets:
March 31, 2021December 31, 2020
(in millions)Gross
carrying
amount		Accumulated
amortization		Net
carrying
amount		Gross
carrying
amount		Accumulated
amortization		Net
carrying
amount
Definite-lived intangible assets
Developed product rights$87,602 $(13,395)$74,207 $87,707 $(11,620)$76,087 
License agreements8,488 (3,129)5,359 7,828 (2,916)4,912 
Total definite-lived intangible assets96,090 (16,524)79,566 95,535 (14,536)80,999 
Indefinite-lived research and development1,727 — 1,727 1,877 — 1,877 
Total intangible assets, net$97,817 $(16,524)$81,293 $97,412 $(14,536)$82,876 
Summary of indefinite-lived intangible assets The following table summarizes intangible assets:
March 31, 2021December 31, 2020
(in millions)Gross
carrying
amount		Accumulated
amortization		Net
carrying
amount		Gross
carrying
amount		Accumulated
amortization		Net
carrying
amount
Definite-lived intangible assets
Developed product rights$87,602 $(13,395)$74,207 $87,707 $(11,620)$76,087 
License agreements8,488 (3,129)5,359 7,828 (2,916)4,912 
Total definite-lived intangible assets96,090 (16,524)79,566 95,535 (14,536)80,999 
Indefinite-lived research and development1,727 — 1,727 1,877 — 1,877 
Total intangible assets, net$97,817 $(16,524)$81,293 $97,412 $(14,536)$82,876