C ONSOLIDATED S TATEMENTS OF STOCKHOLDERS’ EQUITY  December 31,  2011 2010  2009  (millions, except per share data) COMMON STOCK, $1 PAR VALUE: Balance at beginning of year  $ 365.3 $ 364.4 $ 363.1 Treasury stock retirement  (9.2) (.4) Stock compensation  .7 1.3 1.3 Balance at end of year  356.8 365.3 364.4 ADDITIONAL PAID-IN CAPITAL:  Balance at beginning of year  105.1 80.0 46.1 Treasury stock retirement  (82.7) (17.0) Stock compensation and tax benefit  29.7 42.1 33.9 Balance at end of year  52.1 105.1 80.0 TREASURY STOCK, AT COST: Balance at beginning of year  (17.4) (17.4) Purchases, shares: 2011-9.2  (337.6) Retirements 337.6 17.4 Balance at end of year  (17.4) RETAINED EARNINGS: Balance at beginning of year  4,846.1 4,640.5 4,724.7 Net income  1,042.3 457.6 111.9 Cash dividends declared on common stock, per share: 2011-$1.30; 2010-$.69; 2009-$.54  (468.2) (252.0) (196.1) Treasury stock retirement  (245.7) Balance at end of year  5,174.5 4,846.1 4,640.5 ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME: Balance at beginning of year  41.3 36.2 (269.8) Other comprehensive (loss) income  (260.3) 5.1 306.0 Balance at end of year  (219.0) 41.3 36.2 Total Stockholders’ Equity $ 5,364.4 $5,357.8  $5,103.7 See notes to consolidated financial statements. 