Restructuring Costs (Narrative) (Details) (USD $) In Millions	9 Months Ended
Sep. 30, 2011
Restructuring Costs [Abstract]
Restructuring actions costs	$ 16

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration