Goodwill and other intangible assets - (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The changes in the carrying amounts of goodwill were as follows (in millions):

	Years ended December 31,
	2019			2018
Beginning balance	$	14,699		$	14,761
Addition from acquisitions	26			6
Currency translation adjustments	(22		)	(68		)
Ending balance	$	14,703		$	14,699

Schedule of identifiable intangible assets

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

	December 31,
	2019							2018
	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	$	(8,322	)	$	17,253	$	12,573	$	(7,479	)	$	5,094
Licensing rights	3,761		(2,398		)	1,363		3,772		(2,032		)	1,740
Marketing-related rights	1,382		(965		)	417		1,297		(1,019		)	278
R&D technology rights	1,273		(947		)	326		1,148		(872		)	276
Total finite-lived intangible assets	31,991		(12,632		)	19,359		18,790		(11,402		)	7,388
Indefinite-lived intangible assets:
IPR&D	54		—			54		55		—			55
Total other intangible assets	$	32,045	$	(12,632	)	$	19,413	$	18,845	$	(11,402	)	$	7,443