CAPITAL STOCK - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options and restricted stock, anti-dilutive		5,100,000	3,300,000	4,100,000	2,400,000
Public offering of common stock underwritten	6,272,667
Common stock dividend paid		$ 67	$ 58	$ 189	$ 173
Dividend, Preferred Stock, Cash		$ 19	$ 19	$ 57	$ 57
Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options and restricted stock, anti-dilutive		14,300,000		14,300,000