Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Millions, except Per Share data, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
CONDENSED CONSOLIDATED BALANCE SHEETS    
Common stock, par value (in dollars per share) $ 2.50 $ 2.50
Common stock, shares authorized 500 500
Common stock, shares issued 222.3 222.4
Treasury stock, shares 35.0 32.6
Common stock held by employee benefits trust, shares 1.4 1.5