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Company Restructuring (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Restructuring and Related Activities [Abstract]
Restructuring and related charges	$ 4us-gaap_RestructuringCharges	$ 6us-gaap_RestructuringCharges

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References+ Details