v2.3.0.11
Condensed Consolidated Statements of Financial Position (Unaudited) (Parentheticals) (USD $)
Jun. 30, 2011
Dec. 31, 2010
Condensed Consolidated Statements of Financial Position (Unaudited) (Parentheticals) [Abstract]    
Common shares, par value $ 2.50 $ 2.50
Common shares authorized 800,000,000 800,000,000
Common shares issued 554,288,614 553,931,181
Common shares outstanding 487,935,652 491,565,880