Acquisitions (Tables)

3 Months Ended

Mar. 31, 2015

Business Combinations [Abstract]

Rollforward of Fair Value of Contingent Consideration [Table Text Block]

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

Balance as of December 31, 2014	$	274
Amounts recorded related to new acquisitions	—
Other amounts recorded related to prior acquisitions	—
Net fair value adjustments	27
Payments made	(99		)
Balance as of March 31, 2015	$	202

Description of unobservable inputs used in Level 3 fair value measurements [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 March 31, 2015	Valuation Technique	Unobservable Input	Range
R&D, Regulatory and Commercialization-based Milestones	$13 million	Probability Weighted Discounted Cash Flow	Discount Rate	1.2%
			Probability of Payment	95% - 100%
			Projected Year of Payment	2015
Revenue-based Payments	$51 million	Probability Weighted Discounted Cash Flow	Discount Rate	11.5% - 15%
			Probability of Payment	0% - 100%
			Projected Year of Payment	2015 - 2018
	$138 million	Monte Carlo	Revenue Volatility	11% - 13%
			Risk Free Rate	LIBOR Term Structure
			Projected Year of Payment	2015-2018

The nonrecurring Level 3 fair value measurements of our intangible asset impairment analysis included the following significant unobservable inputs:

Intangible Asset	Valuation Date	Fair Value	Valuation Technique	Unobservable Input	Rate
In-Process R&D	March 31, 2014	$6 million	Income Approach - Excess Earnings Method	Discount Rate	20%
Core Technology	March 31, 2014	$64 million	Income Approach - Excess Earnings Method	Discount Rate	15%