Business combinations (Tables)

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Aggregate acquisition date consideration to acquire an entity

The aggregate share acquisition date consideration to acquire the remaining 50% ownership in K-A and the fair value of Amgen’s preacquisition investment consisted of the following (in millions):

	Amount
Total cash paid to Kirin	$	780
Fair value of contingent consideration obligation	45
Loss on settlement of preexisting relationship	(168		)
Total consideration transferred to acquire K-A	657
Fair value of Amgen’s investment in K-A	825
Total acquisition date fair value	$	1,482