LONG-TERM DEBT AND LEASE OBLIGATIONS (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended					1 Months Ended				1 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 4 1/2% senior secured notes due 2021	Feb. 28, 2013 4 1/2% senior secured notes due 2021	Dec. 31, 2012 4 1/2% senior secured notes due 2021	Feb. 28, 2013 10% senior notes due 2018	Sep. 30, 2013 4 3/8%, due 2021	May 31, 2013 4 3/8%, due 2021	Dec. 31, 2012 4 3/8%, due 2021	May 31, 2013 8.875% senior notes due 2019
LONG-TERM DEBT AND LEASE OBLIGATIONS
Aggregate principal amount of notes sold						$ 850				$ 1,050
Debt repurchased								645				767
Remaining carrying amount						69						158
Loss from early extinguishment of debt	$ 0	$ 0	$ 348	$ 0				$ 177				$ 171
Interest rate, stated percentage					4.50%		4.50%	10.00%	4.375%	4.375%	4.375%	8.875%