Quarterly report pursuant to Section 13 or 15(d)

Litigation (Details)

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Litigation (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Dec. 31, 2011
Jun. 30, 2012
States
Litigation (Textual) [Abstract]    
Litigation reserve $ 45  
Legal and professional fees 5  
Attorney fee   5
Settle domestic advertising class lawsuits and related claims   45
Number of states   44
Legal settlement reflect current estimated range of loss   $ 50