CAPITAL STOCK - Additional Information (Detail) (USD $) Share data in Millions, unless otherwise specified	1 Months Ended	3 Months Ended		6 Months Ended		80 Months Ended
	Oct. 27, 2006	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 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		1.4	1.1	3.1	3.3	15.3
Aggregate cost of repurchase		39,600,000	24,600,000	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				$ 2,700,000	$ 3,200,000