Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Numerator:
Net earnings attributable to the Company	$ 126	$ 108	$ 314	$ 280
Denominator (in thousands):
Denominator for basic earnings per share - weighted average shares outstanding (in shares)	162,866,000	162,080,000	162,658,000	161,744,000
Effect of dilutive securities:
Stock options and other (in shares)	2,127,000	1,124,000	1,782,000	863,000
Denominator for diluted earnings per share - adjusted weighted average shares outstanding (in shares)	164,993,000	163,204,000	164,440,000	162,607,000
Basic earnings per share:
Earnings from continuing operations (in dollars per share)	$ 0.78	$ 0.68	$ 1.94	$ 1.76
Loss from discontinued operations (in dollars per share)	(0.01)	(0.02)	(0.01)	(0.04)
Net earnings (in dollars per share)	0.77	0.66	1.93	1.72
Diluted earnings per share:
Earnings from continuing operations (in dollars per share)	0.77	0.68	1.92	1.75
Loss from discontinued operations (in dollars per share)	(0.01)	(0.02)	(0.01)	(0.04)
Net earnings (in dollars per share)	$ 0.76	$ 0.66	$ 1.91	$ 1.71
Weighted average shares of common stock attributable to options not included in diluted earnings per share (in shares)	1,168,671	2,858,371	1,664,845	2,922,833