Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Numerator:
Net earnings attributable to the Company	$ 98	$ 49
Denominator (in thousands):
Denominator for basic earnings per share - weighted average shares outstanding (in shares)	162,919,000	162,388,000
Effect of dilutive securities:
Stock options and other (in shares)	2,267,000	1,452,000
Denominator for diluted earnings per share - adjusted weighted average shares outstanding (in shares)	165,186,000	163,840,000
Basic earnings per share:
Earnings from continuing operations (in dollars per share)	$ 0.60	$ 0.30
Net earnings (in dollars per share)	0.60	0.30
Diluted earnings per share:
Earnings from continuing operations (in dollars per share)	0.59	0.30
Net earnings (in dollars per share)	$ 0.59	$ 0.30
Weighted average shares of common stock attributable to options not included in diluted earnings per share (in shares)	1,802,122	2,207,915