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Equity (Narrative) (Details) (USD $)
0 Months Ended 3 Months Ended 9 Months Ended
Oct. 25, 2013
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Equity [Abstract]          
Common stock dividend $ 0.83 $ 0.83 $ 0.83 $ 2.49 $ 2.49
Parent Company [Member]
         
Equity [Abstract]          
Stock Options Excluded From Diluted Common Shares Outstanding Calculation   8,800,000 6,200,000 8,900,000 7,700,000
Shares, Issued   498,426   498,426