VARIABLE INTEREST ENTITIES AND PREFERRED SECURITIES OF SUBSIDIARIES Activity Between Company and Entities Footnotes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2006
Variable Interest Entity [Line Items]
Accretion income for amortization of purchase accounting adjustment, financial assets	$ 5
Accretion expense for amortization of purchase accounting adjustment, financial liabiities	$ 2
Variable Interest Entity, Not Primary Beneficiary [Member] | Class B Interest In Entities [Member]
Variable Interest Entity [Line Items]
Other Ownership Interests, Contributed Capital		$ 5,000