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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)
In Millions
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income
Retained Earnings
Treasury Stock
Balance at Beginning of Year at Dec. 31, 2009 $ 36.4$ 2,587.4$ 341.0$ 6,289.5$ (754.2)
Common Stock Activity 0.123.7   
Change During Period152.8  152.8  
Net Income660.3     
Dividends to Stockholders (per common share: $0.2900; $0.2575)    (85.4) 
Purchases of Treasury Stock(327.5)    (327.5)
Retirement of Repurchased Common Shares 00 0 
Balance at End of Period at Sep. 30, 20108,924.136.52,611.1493.86,864.4(1,081.7)
Balance at Beginning of Year at Dec. 31, 20108,944.436.52,615.4341.97,060.8(1,110.2)
Common Stock Activity 0.120.7   
Change During Period544.3  544.3  
Net Income660.8   660.8 
Dividends to Stockholders (per common share: $0.2900; $0.2575)    (90.3) 
Purchases of Treasury Stock     (419.9)
Retirement of Repurchased Common Shares (0.8)(55.2) (144.0) 
Balance at End of Period at Sep. 30, 2011$ 9,460.1$ 35.8$ 2,580.9$ 886.2$ 7,487.3$ (1,530.1)