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Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Numerator:        
Net earnings attributable to the Company $ 50 $ 140 $ 147 $ 188
Denominator (in thousands):        
Denominator for basic earnings per share - weighted average shares outstanding (in shares) 160,858,000 162,716,000 161,904,000 162,553,000
Effect of dilutive securities:        
Stock options and other (in shares) 1,854,000 1,766,000 2,060,000 1,609,000
Denominator for diluted earnings per share - adjusted weighted average shares outstanding (in shares) 162,712,000 164,482,000 163,964,000 164,162,000
Basic earnings per share:        
Earnings from continuing operations (in dollars per share) $ 0.31 $ 0.86 $ 0.91 $ 1.16
Loss from discontinued operations (in dollars per share)     (0.01)  
Net earnings (in dollars per share) 0.31 0.86 0.90 1.16
Diluted earnings per share:        
Earnings from continuing operations (in dollars per share) 0.31 0.85 0.90 1.15
Net earnings (in dollars per share) $ 0.31 $ 0.85 $ 0.90 $ 1.15
Weighted average shares of common stock attributable to options not included in diluted earnings per share (in shares) 1,989,521 1,617,748 1,895,822 1,912,832