Intangible Assets - Schedule of Intangible Assets by Type (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016		Dec. 31, 2015
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	$ 1,202		$ 1,243
Finite-Lived Intangible Assets, Accumulated Amortization	653		660
Finite-Lived Intangible Assets, Net	549		583
Customer Relationships and Trade Names [Member]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Impairment of Intangible Assets, Finite-lived	12
Technology-Based Intangible Assets
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	867		866
Finite-Lived Intangible Assets, Accumulated Amortization	467		452
Finite-Lived Intangible Assets, Net	400		414
Customer Relationships
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	209	[1]	251
Finite-Lived Intangible Assets, Accumulated Amortization	83	[1]	106
Finite-Lived Intangible Assets, Net	126	[1]	145
Trade Names
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	108		108
Finite-Lived Intangible Assets, Accumulated Amortization	90		89
Finite-Lived Intangible Assets, Net	18		19
Other Intangible Assets
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	18		18
Finite-Lived Intangible Assets, Accumulated Amortization	13		13
Finite-Lived Intangible Assets, Net	$ 5		$ 5

[1] During the first quarter of 2016, we recorded impairments relating to our customer relationship intangible assets totaling $12 million. See Note 3. "Impairment and Restructuring Charges" for further discussion.