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Acquisitions and Divestitures (Divestitures) (Details Textual) (LinkedIn [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended
Sep. 30, 2011
LinkedIn [Member]
 
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Pretax gain related to sale of business $ 13