VARIABLE INTEREST ENTITIES - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Variable Interest Entity [Line Items]
Proceeds of investments (payments of liabilities) held by special purpose entities	$ 0	$ 0	$ 22
Interest expense	347	344	369
Net deferred tax liability	82
Special Purpose Entities
Variable Interest Entity [Line Items]
Proceeds of investments (payments of liabilities) held by special purpose entities			22
Interest expense	29	29	29
Interest income	$ 34	34	34
Number of qualifying special purpose entities	3
Net equity in SPEs	$ 105
Net deferred tax liability	180
Buyer-sponsored SPEs
Variable Interest Entity [Line Items]
Proceeds of investments (payments of liabilities) held by special purpose entities			184
Restricted financial investments	$ 615	$ 615
Weighted average interest rate	5.50%	5.50%
Buyer-sponsored SPEs | Restricted bank financial instruments due in 2019
Variable Interest Entity [Line Items]
Restricted financial investments	$ 253
Investment, maturity date	Dec. 31, 2019
Buyer-sponsored SPEs | Restricted bank financial instruments due in 2020
Variable Interest Entity [Line Items]
Restricted financial investments	$ 362
Investment, maturity date	Dec. 31, 2020
Monetization SPEs
Variable Interest Entity [Line Items]
Proceeds of investments (payments of liabilities) held by special purpose entities			$ (162)
Weighted average interest rate	5.60%	5.60%
Long-term notes	$ 511	$ 511
Monetization SPEs | Long-term debt due in 2019
Variable Interest Entity [Line Items]
Long-term notes	$ 209
Debt, maturity date	Dec. 31, 2019
Monetization SPEs | Long-term debt due in 2020
Variable Interest Entity [Line Items]
Long-term notes	$ 302
Debt, maturity date	Dec. 31, 2020