CAPITAL STOCK - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	3 Months Ended		113 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016
Equity, Class of Treasury Stock [Line Items]
Share repurchase program	$ 1,000.0		$ 1,000.0
Repurchase of shares of common stock		2.0
Aggregate cost of repurchase		$ 80.0
Number of shares repurchased under settlement of employee tax withholding obligations	0.2	0.1
Shares repurchased aggregate value under settlement of employee tax withholding obligations	$ 6.9	$ 3.6
2006 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of shares of common stock			18.4
Aggregate cost of repurchase			$ 759.3