EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Basic earnings per share:
Weighted-average shares outstanding	186.6	202.4
Net earnings attributable to shareholders	$ 72.7	$ 207.4
Dividends and undistributed earnings attributable to unvested shares	(0.3)	(0.4)
Net earnings attributable to shareholders used for basic earnings per share calculation	$ 72.4	$ 207.0
Net earnings attributable to shareholders (in dollars per share)	$ 0.39	$ 1.02
Diluted earnings per share:
Weighted-average shares outstanding	186.6	202.4
Incremental shares outstanding assuming the exercise/vesting of dilutive stock options/performance shares	0.1	0.5
Weighted-average shares — diluted	186.7	202.9
Net earnings attributable to shareholders	$ 72.7	$ 207.4
Dividends and undistributed earnings attributable to unvested shares	(0.3)	(0.4)
Net earnings attributable to shareholders used for diluted earnings per share calculation	$ 72.4	$ 207.0
Net earnings attributable to shareholders per share (in dollars per share)	$ 0.39	$ 1.02
Potential shares outstanding	3.6	2.9
Potential shares outstanding, not included in the diluted earnings per share calculation	3.5	2.4