Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

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, 2017	$	15,785
Foreign currency translation	(122		)
Balance as of December 31, 2018	15,663
Foreign currency translation	(59		)
Balance as of December 31, 2019	$	15,604

Schedule of definite-lived intangible assets

The following table summarizes intangible assets:

	2019							2018
as of December 31 (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	$	19,547	$	(6,405	)	$	13,142	$	15,872	$	(5,614	)	$	10,258
License agreements	7,798		(2,291		)	5,507		7,865		(1,810		)	6,055
Total definite-lived intangible assets	27,345		(8,696		)	18,649		23,737		(7,424		)	16,313
Indefinite-lived research and development	—		—			—		4,920		—			4,920
Total intangible assets, net	$	27,345	$	(8,696	)	$	18,649	$	28,657	$	(7,424	)	$	21,233

Schedule of indefinite-lived intangible assets

The following table summarizes intangible assets:

	2019							2018
as of December 31 (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	$	19,547	$	(6,405	)	$	13,142	$	15,872	$	(5,614	)	$	10,258
License agreements	7,798		(2,291		)	5,507		7,865		(1,810		)	6,055
Total definite-lived intangible assets	27,345		(8,696		)	18,649		23,737		(7,424		)	16,313
Indefinite-lived research and development	—		—			—		4,920		—			4,920
Total intangible assets, net	$	27,345	$	(8,696	)	$	18,649	$	28,657	$	(7,424	)	$	21,233

Schedule of anticipated annual amortization expense

The anticipated annual amortization expense for definite-lived intangible assets recorded as of December 31, 2019 is as follows:

(in billions)	2020		2021		2022		2023		2024
Anticipated annual amortization expense	$	1.8	$	2.0	$	2.3	$	2.4	$	2.5