Goodwill and Other Long-Lived Assets - Identifiable Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Gross Carrying Amount	$ 672	$ 416
Identifiable intangible assets - Accumulated Amortization	(178)	(112)
Amortization expense - actual	66
Finite-Lived Intangible Assets, Estimated Future Amortization Expense [Abstract]
2014	73
2015	73
2016	67
2017	58
2018	41
Reseller & Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Gross Carrying Amount	328	179
Identifiable intangible assets - Accumulated Amortization	(37)	(17)
Reseller & Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Amortization Period	1 year
Reseller & Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Amortization Period	20 years
Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Gross Carrying Amount	275	180
Identifiable intangible assets - Accumulated Amortization	(118)	(80)
Intellectual Property [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Amortization Period	2 years
Intellectual Property [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Amortization Period	7 years
Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Gross Carrying Amount	61	49
Identifiable intangible assets - Accumulated Amortization	(15)	(8)
Tradenames [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Amortization Period	2 years
Tradenames [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Amortization Period	10 years
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Gross Carrying Amount	8	8
Identifiable intangible assets - Accumulated Amortization	$ (8)	$ (7)
Non-compete Agreements [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Amortization Period	2 years
Non-compete Agreements [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets - Amortization Period	5 years