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Earnings Per Share (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Numerator:    
Net earnings attributable to the Company (in dollars) $ 121 $ 82
Denominator (in thousands):    
Denominator for basic earnings per share - weighted average shares outstanding (in shares) 164,241,000 163,355,000
Effect of dilutive securities:    
Stock options and other (in shares) 1,965,000 2,759,000
Denominator for diluted earnings per share - adjusted weighted average shares (in shares) 166,206,000 166,114,000
Basic earnings per share:    
Earnings from continuing operations (in dollars per share) $ 0.74 $ 0.50
Loss from discontinued operations (in dollars per share) $ (0.01)  
Net earnings (in dollars per share) $ 0.73 $ 0.50
Diluted earnings per share:    
Diluted earnings per share (in dollars per share) $ 0.73 $ 0.50
Loss from discontinued operations (in dollars per share) $ (0.01)  
Net earnings (in dollars per share) $ 0.72 $ 0.50
Weighted average shares of common stock attributable to options not included in diluted earnings per share (in shares) 956,580 462,037
Exchange price of 2015 exchangeable notes (in dollars per share) $ 47.47