SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION Interest Income and Expense Footnotes (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended |
|---|---|---|
Sep. 30, 2015 |
Sep. 30, 2015 |
|
| Supplemental Income Statement Elements [Abstract] | ||
| Variable Interest Entity, Measure of Activity, Operating Income or Loss | $ 7 | $ 25 |