RECENT BUSINESS ACQUISITIONS (Details) - USD ($) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Sep. 30, 2015 |
Mar. 31, 2015 |
Jul. 31, 2015 |
|
| Black Oak Getty Wind [Member] | |||
| Business Acquisition [Line Items] | |||
| Cash consideration (fair value of total consideration) | $ 8 | ||
| Equity Method Investment Ownership Percentage | 100.00% | ||
| PEMEX [Member] | |||
| Business Acquisition [Line Items] | |||
| Ownership Percentage in consolidated entity | 50.00% | ||
| IEnova [Member] | |||
| Business Acquisition [Line Items] | |||
| Ownership percentage before acquisition | 50.00% | ||
| Acquired percentage interest in joint venture | 100.00% | ||
| Net Debt Not Assumed By Investee | $ 170 | ||
| Business Acquisition Purchase Price Allocation Equity Method Investment | $ 1,325 | ||
| Ownership Percentage in consolidated entity | 25.00% | ||
| Equity Method Investment Ownership Percentage | 50.00% | ||