Goodwill and Other Intangible Assets Goodwill (Tables)

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

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 liabilities include the following significant unobservable inputs:

Contingent Consideration Liabilities	Fair Value as of June 30, 2017	Valuation Technique	Unobservable Input	Range
R&D and Commercialization-based Milestones	$44 million	Discounted Cash Flow	Discount Rate	2% - 3%
			Projected Year of Payment	2017 - 2021
Revenue-based Payments	$58 million	Discounted Cash Flow	Discount Rate	11% - 15%
			Projected Year of Payment	2017 - 2026

Schedule of Goodwill [Table Text Block]

The following represents our goodwill balance by global reportable segment:

(in millions)	Cardiovascular		Rhythm Management		MedSurg		Total
Balance as of December 31, 2016	$	3,513	$	290	$	2,875	$	6,678
Impact of foreign currency fluctuations and other changes in carrying amount	4		1		3		8
Goodwill acquired	185		—		—		185
Balance as of June 30, 2017	$	3,702	$	291	$	2,878	$	6,871

The gross carrying amount of goodwill and other intangible assets and the related accumulated amortization for intangible assets subject to amortization and accumulated write-offs of goodwill as of June 30, 2017 and December 31, 2016 are as follows:

	As of
	June 30, 2017					December 31, 2016
	Gross Carrying		Accumulated Amortization/			Gross Carrying		Accumulated Amortization/
(in millions)	Amount		Write-offs			Amount		Write-offs
Amortizable intangible assets
Technology-related	$	9,390	$	(4,675	)	$	9,123	$	(4,468	)
Patents	511		(370		)	529		(374		)
Other intangible assets	1,632		(779		)	1,583		(722		)
	$	11,533	$	(5,824	)	$	11,235	$	(5,564	)
Unamortizable intangible assets
Goodwill	$	16,771	$	(9,900	)	$	16,578	$	(9,900	)
In-process research and development (IPR&D)	92		—			92		—
Technology-related	120		—			120		—
	$	16,983	$	(9,900	)	$	16,790	$	(9,900	)

The following is a rollforward of accumulated goodwill write-offs by global reportable segment:

(in millions)	Cardiovascular			Rhythm Management			MedSurg			Total
Accumulated write-offs as of December 31, 2016	$	(1,479	)	$	(6,960	)	$	(1,461	)	$	(9,900	)
Goodwill written off	—			—			—			—
Accumulated write-offs as of June 30, 2017	$	(1,479	)	$	(6,960	)	$	(1,461	)	$	(9,900	)