SUBSEQUENT EVENTS (Details) (USD $)	0 Months Ended	12 Months Ended	0 Months Ended	1 Months Ended
	Aug. 01, 2013	Dec. 31, 2013	Feb. 13, 2014 Subsequent event	Jan. 31, 2014 Subsequent event	Jan. 31, 2014 Subsequent event 4.250% Notes due 2014	Jan. 31, 2014 Subsequent event 8.25% Notes maturing on August 15, 2018
Subsequent events
Reduction of debt				$ 2,200,000,000
Aggregate principal amount of debt redeemed					1,200,000,000
Amount of debt repurchased						1,000,000,000
Interest rate (as a percent)					4.25%	8.25%
Cash dividend declared on common stock (in dollars per share)		$ 0.20	$ 0.125
Authorized amount of common Stock share repurchase			1,000,000,000
Aggregate remaining authorization amount of common Stock share repurchase	$ 1,000,000,000		$ 1,400,000,000