INCOME TAXES - Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Income Tax Contingency [Line Items]
Balance at beginning of year	$ 177	$ 251
Additions for tax positions of prior years	0	2
Reductions for tax positions of prior years	(148)	(21)
Settlements	0	(53)
Lapse of statute	(3)	(2)
Balance at end of year	$ 26	$ 177