VARIABLE INTEREST ENTITIES AND PREFERRED SECURITIES OF SUBSIDIARIES Activity Between Company and Entities Footnotes (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Variable Interest Entity [Line Items]
Accretion income for amortization of purchase accounting adjustment, financial assets	$ 5	$ 5
2007 Financing Entities [Member]
Variable Interest Entity [Line Items]
Accretion expense for amortization of purchase accounting adjustment, financial liabiities	$ 2	$ 2

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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