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Earnings Per Share (Details) (USD $)
In Millions, except Share data
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Numerator:    
Net earnings attributable to the Company$ 116$ 139$ 261$ 365
Net earnings attributable to participating securities   (1)
Income available to common share owners$ 116$ 139$ 261$ 364
Denominator (in thousands):    
Denominator for basic earnings per share - weighted average shares outstanding (in shares)163,812,000163,079,000163,602,000164,638,000
Effect of dilutive securities:    
Stock options and other (in shares)1,883,0002,512,0002,415,0002,920,000
Denominator for diluted earnings per share - adjusted weighted average shares outstanding (in shares)165,695,000165,591,000166,017,000167,558,000
Basic earnings per share:    
Earnings from continuing operations (in dollars per share)$ 0.73$ 0.78$ 1.60$ 2.07
Earnings (loss) from discontinued operations (in dollars per share)$ (0.02)$ 0.07$ (0.01)$ 0.14
Net earnings (in dollars per share)$ 0.71$ 0.85$ 1.59$ 2.21
Diluted earnings per share:    
Earnings from continuing operations (in dollars per share)$ 0.72$ 0.77$ 1.58$ 2.04
Earnings (loss) from discontinued operations (in dollars per share)$ (0.02)$ 0.07$ (0.01)$ 0.14
Net earnings (in dollars per share)$ 0.70$ 0.84$ 1.57$ 2.18
Weighted average shares of common stock attributable to options not included in diluted earnings per share (in shares)1,621,239838,535895,539640,294
Exchange price of 2015 exchangeable notes (in dollars per share)$ 47.47 $ 47.47