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Restructuring Charges (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Restructuring charges	$ 5	$ 14
Historical Restructuring Cost Per Year, Minimum	50
Historical Restructuring Cost Per Year, Maximum	75
Severance and Related Costs
Restructuring charges	3
Contractual Obligations and Other
Restructuring charges	$ 2

- 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.

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