CAPITAL STOCK - Additional Information (Detail) (USD $) Share data in Millions, unless otherwise specified	1 Months Ended	9 Months Ended		83 Months Ended
	Oct. 27, 2006	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 2006 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Term of repurchase program	3 years
Share repurchase program	$ 1,000,000,000
Repurchase of shares of common stock		3.1	3.3	15.3
Aggregate cost of repurchase		85,200,000	73,600,000	629,300,000
Number of shares repurchased under settlement of employee tax withholding obligations		0.1	0.1
Shares repurchased aggregate value under settlement of employee tax withholding obligations		$ 2,800,000	$ 3,300,000