Contingent Consideration (Tables)

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Changes in the fair value of our contingent consideration liability were as follows:

(in millions)
Balance as of December 31, 2017	$	169
Amounts recorded related to current year acquisitions	190
Purchase price adjustments related to prior year acquisitions	(22		)
Contingent consideration expense (benefit)	(12		)
Contingent consideration payments	(21		)
Balance as of September 30, 2018	$	305

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

The recurring Level 3 fair value measurements of our contingent consideration liability include the following significant unobservable inputs:

Contingent Consideration Liability	Fair Value as of September 30, 2018	Valuation Technique	Unobservable Input	Range
R&D, Regulatory and Commercialization-based Milestones	$201 million	Discounted Cash Flow	Discount Rate	3	%	-	4%
			Probability of Payment	17	%	-	99%
			Projected Year of Payment	2018		-	2022
Revenue-based Payments	$104 million	Discounted Cash Flow	Discount Rate	11	%	-	15%
			Projected Year of Payment	2018		-	2026