Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Finite-Lived Intangible Assets:
Finite-Lived Intangible Assets, Gross Carrying Amount	$ 2,259		$ 2,259		$ 2,260
Finite-Lived Intangible Assets, Accumulated Amortization	(1,307)		(1,307)		(1,148)
Finite-Lived Intangible Assets, Net	952		952		1,112
Acquired finite-lived intangible asset amortization expense	53	$ 58	$ 159	$ 172
Acquired finite-lived intangible assets weighted average remaining useful lives (in years)			5 years
Indefinite-Lived Intangible Assets:
Total identifiable acquisition-related intangible assets, Gross Carrying Amount	2,274		$ 2,274		2,275
Total identifiable acquisition-related intangible assets, Net	967		967		1,127
Estimated amortization expense of finite-lived acquisition-related intangible assets
2016 (remaining three months)	52		52
2017	196		196
2018	193		193
2019	181		181
2020	166		166
2021	143		143
Thereafter	21		21
Finite-Lived Intangible Assets, Net	952		952		1,112
Vyvx Trade Name
Indefinite-Lived Intangible Assets:
Indefinite-Lived Intangible Assets	15		15		15
Customer Contracts And Relationships
Finite-Lived Intangible Assets:
Finite-Lived Intangible Assets, Gross Carrying Amount	1,974		1,974		1,975
Finite-Lived Intangible Assets, Accumulated Amortization	(1,069)		(1,069)		(932)
Finite-Lived Intangible Assets, Net	905		$ 905		1,043
Acquired finite-lived intangible assets weighted average remaining useful lives (in years)			5 years 2 months 12 days
Estimated amortization expense of finite-lived acquisition-related intangible assets
Finite-Lived Intangible Assets, Net	905		$ 905		1,043
Trademarks
Finite-Lived Intangible Assets:
Finite-Lived Intangible Assets, Gross Carrying Amount	55		55		55
Finite-Lived Intangible Assets, Accumulated Amortization	(55)		(55)		(55)
Finite-Lived Intangible Assets, Net	0		0		0
Estimated amortization expense of finite-lived acquisition-related intangible assets
Finite-Lived Intangible Assets, Net	0		0		0
Patents and Developed Technology
Finite-Lived Intangible Assets:
Finite-Lived Intangible Assets, Gross Carrying Amount	230		230		230
Finite-Lived Intangible Assets, Accumulated Amortization	(183)		(183)		(161)
Finite-Lived Intangible Assets, Net	47		$ 47		69
Acquired finite-lived intangible assets weighted average remaining useful lives (in years)			2 years 10 months 24 days
Estimated amortization expense of finite-lived acquisition-related intangible assets
Finite-Lived Intangible Assets, Net	$ 47		$ 47		$ 69