Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets:
Finite-Lived Intangible Assets, Gross Carrying Amount	$ 2,254		$ 2,257
Finite-Lived Intangible Assets, Accumulated Amortization	(1,408)		(1,357)
Finite-Lived Intangible Assets, Net	846		900
Acquired finite-lived intangible asset amortization expense	$ 52	$ 53
Acquired finite-lived intangible assets weighted average remaining useful lives (in years)	4 years 7 months 6 days
Indefinite-Lived Intangible Assets:
Total identifiable acquisition-related intangible assets, Gross Carrying Amount	$ 2,269		2,272
Total identifiable acquisition-related intangible assets, Net	861		915
Estimated amortization expense of finite-lived acquisition-related intangible assets
2017 (remaining nine months)	147
2018	190
2019	179
2020	166
2021	143
2022	21
Thereafter	0
Finite-Lived Intangible Assets, Net	846		900
Vyvx Trade Name
Indefinite-Lived Intangible Assets:
Indefinite-Lived Intangible Assets	15		15
Customer Contracts And Relationships
Finite-Lived Intangible Assets:
Finite-Lived Intangible Assets, Gross Carrying Amount	1,972		1,973
Finite-Lived Intangible Assets, Accumulated Amortization	(1,159)		(1,113)
Finite-Lived Intangible Assets, Net	$ 813		860
Acquired finite-lived intangible assets weighted average remaining useful lives (in years)	4 years 8 months 12 days
Estimated amortization expense of finite-lived acquisition-related intangible assets
Finite-Lived Intangible Assets, Net	$ 813		860
Trademarks
Finite-Lived Intangible Assets:
Finite-Lived Intangible Assets, Gross Carrying Amount	55		55
Finite-Lived Intangible Assets, Accumulated Amortization	(55)		(55)
Finite-Lived Intangible Assets, Net	0		0
Estimated amortization expense of finite-lived acquisition-related intangible assets
Finite-Lived Intangible Assets, Net	0		0
Patents and Developed Technology
Finite-Lived Intangible Assets:
Finite-Lived Intangible Assets, Gross Carrying Amount	227		229
Finite-Lived Intangible Assets, Accumulated Amortization	(194)		(189)
Finite-Lived Intangible Assets, Net	$ 33		40
Acquired finite-lived intangible assets weighted average remaining useful lives (in years)	2 years 3 months 18 days
Estimated amortization expense of finite-lived acquisition-related intangible assets
Finite-Lived Intangible Assets, Net	$ 33		$ 40