XML 69 R64.htm IDEA: XBRL DOCUMENT v3.3.0.814
Noncontrolling Interests (Preferred Stockholders' Equity in Subsidiaries) (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Noncontrolling Interest [Line Items]    
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 25.00%  
Noncontrolling Interest, Ownership Percentage by Parent 75.00%  
Preferred Stock, Dividend Rate, Percentage 4.00% 4.00%
Preferred Stock, Cumulative Dividend Increase Interval if Outstanding Once Callable 6 months  
Dividends in arrears $ 0 $ 0
Redeemable Preferred Stock Member    
Noncontrolling Interest [Line Items]    
Shares, Outstanding 300,000  
Preferred Stock, Value, Issued $ 300,000,000  
Preferred Stock, Dividend Rate, Percentage 6.125%  
Preferred Stock, Dividend Rate, Increase if Outstanding Once Callable 50.00%  
Preferred stock-perpetual voting, dividend increase percentage each interval once shares become callable 50.00%