Annual report pursuant to Section 13 and 15(d)

Earnings Per Share (Details)

v2.4.0.8
Earnings Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Basic earnings per common share:                      
Net income $ 157,823 $ 178,487 $ 150,651 $ 151,780 $ 167,279 $ 167,767 $ 152,706 $ 153,270 $ 638,741 $ 641,022 $ 542,613
Preferred stock dividends, deemed dividend and accretion of discount (7,965) (7,967) (7,967) (7,970) (7,973) (7,983) (7,984) (8,049) (31,869) (31,989) (30,813)
Net income applicable to common shareholders 149,858 170,520 142,684 143,810 159,306 159,784 144,722 145,221 606,872 609,033 511,800
Average common shares issued and outstanding                 834,205,000 857,962,000 863,691,000
Basic earnings per common share $ 0.18 $ 0.21 $ 0.17 $ 0.17 $ 0.19 $ 0.19 $ 0.17 $ 0.17 $ 0.73 $ 0.71 $ 0.59
Diluted earnings per common share                      
Net income applicable to common shareholders 149,858 170,520 142,684 143,810 159,306 159,784 144,722 145,221 606,872 609,033 511,800
Effect of assumed preferred stock conversion 7,965 7,967 7,967 7,970 7,973 7,983 7,984 8,049 31,869 31,989 30,813
Net income applicable to diluted earnings per share                 $ 606,872 $ 609,033 $ 511,800
Average common shares issued and outstanding                 834,205,000 857,962,000 863,691,000
Dilutive potential common shares:                      
Stock options and restricted stock units                 8,418,000 4,202,000 2,916,000
Shares held in deferred compensation plans                 1,351,000 1,238,000 1,017,000
Incremental Common Shares Attributable to Conversion of Preferred Stock                 0 0 0
Dilutive potential common shares:                 9,769,000 5,440,000 3,933,000
Total diluted average common shares issued and outstanding                 843,974,000 863,402,000 867,624,000
Diluted earnings (loss) per common share $ 0.18 $ 0.20 $ 0.17 $ 0.17 $ 0.19 $ 0.19 $ 0.17 $ 0.17 $ 0.72 $ 0.71 $ 0.59
Earnings Loss Per Share (Textuals) [Abstract]                      
Options outstanding to purchase common stock shares having antidilutive effect                 6,600,000 24,400,000 23,600,000