Quarterly report pursuant to Section 13 or 15(d)

Stockholders Equity (Details)

v3.4.0.3
Stockholders Equity (Details) - USD ($)
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Class of Stock [Line Items]      
Preferred stock issued (in shares) 0   0
Stock authorized for repurchase (in shares) $ 1,200,000,000    
Payments for repurchase of common stock $ 83,900,000 $ 13,000,000  
Stock repurchased and retired during the year (in shares) 3,100,000    
Remaining authorized repurchase amount (in shares) $ 394,400,000    
Series C      
Class of Stock [Line Items]      
Preferred stock authorized for issuance (in shares) 2,000,000,000.0