EQUITY - Schedule of Stock by Class (Details) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
	Oct. 22, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Class of Stock [Line Items]
Balance as of January 1, 2016				191.4
Balance as of September 30, 2016		189.7		189.7
Treasury Stock, Value (Beginning Balance)				$ 362.6
Treasury Stock, Value (Ending Balance)		$ 363.0		$ 363.0
Common Stock
Class of Stock [Line Items]
Balance as of January 1, 2016				191.4	207.2
Stock-based compensation				0.4	0.5
Stock Repurchased During Period, Shares			0.0	0.0
Stock Repurchased and Retired During Period, Shares				(2.1)
Balance as of September 30, 2016		189.7	207.7	189.7	207.7
Treasury Stock
Class of Stock [Line Items]
Treasury Stock, Shares (Beginning Balance)				4.9	4.9
Stock-based compensation				0.0	0.0
Stock Repurchased During Period, Shares			5.7	0.0
Stock Repurchased and Retired During Period, Shares				0.0
Treasury Stock, Shares (Ending Balance)		4.9	10.6	4.9	10.6
Treasury Stock, Value (Beginning Balance)				$ 362.6	$ 362.6
Treasury Stock Reissued at Lower than Repurchase Price				0.0	0.0
Treasury Stock, Retired, Cost Method, Amount	$ 1,000.0	$ 0.4	$ 437.0
Treasury Stock, Value (Ending Balance)		$ 363.0	$ 799.6	363.0	$ 799.6
Stock Repurchased and Retired During Period, Value				$ 0.0