Quarterly report pursuant to Section 13 or 15(d)

Capital And Accumulated Other Comprehensive Income (Loss) (Narrative) (Details)

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Capital And Accumulated Other Comprehensive Income (Loss) (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Apr. 02, 2011
Capital And Accumulated Other Comprehensive Income (Loss) [Abstract]      
Treasury shares 21,462,952 19,289,690 19,243,471
Common Stock, stated value $ 1 $ 1 $ 1
Number of Common Stock shares held in trust in connection with deferred compensation plans 239,345 238,275 253,610
Common Stock held in trust in connection with deferred compensation plans $ 11.2 $ 11.0 $ 11.4
Preferred Stock, authorized shares 25,000,000    
Preferred Stock, par value $ 1