Goodwill and other intangible assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

Changes in the carrying amount of goodwill were as follows (in millions):

	Three months ended March 31, 2018
Beginning balance	$	14,761
Addition from K-A acquisition	6
Currency translation adjustment	4
Ending balance	$	14,771

Schedule of identifiable intangible assets

Other intangible assets consisted of the following (in millions):

	March 31, 2018							December 31, 2017
	Gross carrying amount		Accumulated amortization			Intangible assets, net		Gross carrying amount		Accumulated amortization			Intangible assets, net
Finite-lived intangible assets:
Developed-product-technology rights	$	12,609	$	(6,974	)	$	5,635	$	12,589	$	(6,796	)	$	5,793
Licensing rights	3,745		(1,699		)	2,046		3,275		(1,601		)	1,674
Marketing-related rights	1,316		(948		)	368		1,319		(920		)	399
R&D technology rights	1,177		(834		)	343		1,161		(804		)	357
Total finite-lived intangible assets	18,847		(10,455		)	8,392		18,344		(10,121		)	8,223
Indefinite-lived intangible assets:
In-process research and development	387		—			387		386		—			386
Total other intangible assets	$	19,234	$	(10,455	)	$	8,779	$	18,730	$	(10,121	)	$	8,609