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Earnings Per Share (Details) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Numerator:        
Net earnings attributable to the Company (in dollars) $ 90 $ 116 $ 344 $ 271
Denominator (in thousands):        
Denominator for basic earnings per share - weighted average shares outstanding (in shares) 164,800,000 163,812,000 164,614,000 163,602,000
Effect of dilutive securities:        
Stock options and other (in shares) 965,000 1,883,000 1,350,000 2,415,000
Denominator for diluted earnings per share - adjusted weighted average shares outstanding (in shares) 165,765,000 165,695,000 165,964,000 166,017,000
Basic earnings per share:        
Earnings from continuing operations (in dollars per share) $ 0.55 $ 0.73 $ 2.11 $ 1.66
Loss from discontinued operations (in dollars per share) $ (0.01) $ (0.02) $ (0.03) $ (0.01)
Net earnings (in dollars per share) $ 0.54 $ 0.71 $ 2.08 $ 1.65
Diluted earnings per share:        
Earnings from continuing operations (in dollars per share) $ 0.55 $ 0.72 $ 2.10 $ 1.64
Loss from discontinued operations (in dollars per share) $ (0.01) $ (0.02) $ (0.03) $ (0.01)
Net earnings (in dollars per share) $ 0.54 $ 0.70 $ 2.07 $ 1.63
Weighted average shares of common stock attributable to options not included in diluted earnings per share (in shares) 2,615,389 2,166,511 2,144,413 1,487,348
Exchange price of 2015 exchangeable notes (in dollars per share) $ 47.47 $ 47.47 $ 47.47 $ 47.47