Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Details)

v3.2.0.727
Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Basic earnings per common share:        
Net income $ 196,206 $ 164,619 $ 362,060 $ 313,762
Preferred stock dividends, deemed dividend and accretion of discount (7,968) (7,963) (15,933) (15,927)
Net income applicable to common shareholders $ 188,238 $ 156,656 $ 346,127 $ 297,835
Average common shares issued and outstanding 806,891 821,546 808,335 825,603
Basic earnings per common share $ 0.23 $ 0.19 $ 0.43 $ 0.36
Diluted earnings per common share        
Net income applicable to common shareholders $ 188,238 $ 156,656 $ 346,127 $ 297,835
Effect of assumed preferred stock conversion 7,968 7,963 15,933 15,927
Net income applicable to diluted earnings per share $ 188,238 $ 156,656 $ 346,127 $ 297,835
Average common shares issued and outstanding 806,891 821,546 808,335 825,603
Dilutive potential common shares:        
Stock options and restricted stock units 11,250 11,395 11,688 11,426
Shares held in deferred compensation plans 1,912 1,245 1,809 1,249
Other 185 501 191 268
Dilutive potential common shares: 13,347 13,141 13,688 12,943
Total diluted average common shares issued and outstanding 820,238 834,687 822,023 838,546
Diluted earnings (loss) per common share $ 0.23 $ 0.19 $ 0.42 $ 0.36
Earnings Loss Per Share (Textuals) [Abstract]        
Options outstanding to purchase common stock shares having antidilutive effect 1,500 3,100 1,300 2,600