STOCKHOLDERS' EQUITY - COMPUTATION OF BASIC AND DILUTED EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Uncategorized [Abstract]
Numerator: net earnings	$ 60.4	$ 83.3	$ 84.8	$ 82.6	$ 83.4	$ 45.8	$ 78.9	$ 77.6	$ 311.1	$ 285.7	$ 104.3
Weighted average common shares:
Denominator for basic earnings per share - Weighted average shares (in millions)									100.4	104.0	104.0
Effect of dilutive securities - Dilutive securities (in millions)									0.5	0.5	0.5
Diluted weighted average common shares									100.9	104.5	104.5
Basic net earnings per share:
Net earnings per share from continuing operatings - basic (in dollars per share)									$ 3.10	$ 2.75	$ 0.55
Net earnings per share from discontinued operations-basic											0.45
Basic net earnings per share (in dollars per share)	$ 0.60	$ 0.83	$ 0.85	$ 0.82	$ 0.81	$ 0.44	$ 0.76	$ 0.74	3.10	2.75	1.00
Diluted net earnings per share:
Net earnings per share from continuing operations - diluted									3.08	2.73	0.55
Net earnings per share from discontinued operations - diluted											0.45
Diluted net earnings per share (in dollars per share)	$ 0.60	$ 0.83	$ 0.84	$ 0.81	$ 0.81	$ 0.44	$ 0.75	$ 0.74	$ 3.08	$ 2.73	$ 1.00