Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Details)

v2.4.0.6
Earnings Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Basic earnings per common share:    
Net income $ 151,780 $ 153,270
Preferred stock dividends, deemed dividend and accretion of discount (7,970) (8,049)
Net income applicable to common shareholders 143,810 145,221
Average common shares issued and outstanding 841,103,000 864,499,000
Basic earnings per common share $ 0.17 $ 0.17
Diluted earnings per common share    
Net income applicable to common shareholders 143,810 145,221
Effect of assumed preferred stock conversion 7,970 8,049
Net income applicable to diluted earnings per share $ 143,810 $ 145,221
Average common shares issued and outstanding 841,103,000 864,499,000
Dilutive potential common shares:    
Stock options and restricted stock units 6,281,000 3,463,000
Shares held in deferred compensation plans 1,324,000 1,202,000
Dilutive potential common shares: 7,605,000 4,665,000
Total diluted average common shares issued and outstanding 848,708,000 869,164,000
Diluted earnings (loss) per common share $ 0.17 $ 0.17
Stock Options [Member]
    
Earnings Loss Per Share (Textuals) [Abstract]    
Options outstanding to purchase common stock shares having antidilutive effect 10,600,000 22,900,000