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Acquisitions (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Oct. 31, 2011
Acquisitions (Additional Textual) [Abstract]
Weighted average life of acquired intangible assets		2 years 9 months 18 days	6 years 2 months 12 days
Cash acquired	$ 0	$ 0.1	$ 2.0
Purchase price allocation period	12 months
Contingent purchase consideration paid		13
Earn-out payment recorded to financing activities		10
Earn-out payment recorded to operating activities		3
Net liabilities recorded at a carrying value				4
Goodwill or other intangibles recorded				0
Contingent payments outstanding				0
Transferor Foreign Subsidiary [Member]
Acquisitions (Textual) [Abstract]
Additional short term borrowings				7
Transferor Foreign Subsidiary [Member] | Minimum [Member]
Acquisitions (Textual) [Abstract]
Subsidiary purchased net of acquired cash				28
Transferor Foreign Subsidiary [Member] | Maximum [Member]
Acquisitions (Textual) [Abstract]
Subsidiary purchased net of acquired cash				$ 37

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Business acquisition contingent consideration earnout payment of financing activities.

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Business acquisition contingent consideration earnout payment of operating activities.

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Business acquired from related party including purchase price allocation of assets acquired, net of cash acquired.

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Business acquisition purchase price allocation goodwill and other intangible assets.

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The maximum time period in which a purchase price allocation adjustment is allowed.

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Contingent purchase consideration paid during period.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

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The amount of cash and cash equivalents acquired in a business combination.

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The amount of acquisition cost of a business combination allocated to the current portion of long-term debt of the acquired entity.

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