SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION (Schedule of Interest Income and Interest Expense Footnotes) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
|
| Variable Interest Entity, Not Primary Beneficiary [Member] | ||||
| Amounts Related To Interest [Line Items] | ||||
| Interest expense and interest income excluded, amount | $ (9) | $ (9) | $ (18) | $ (19) |