RECENT INVESTMENT ACTIVITY 2 (Details) - Jun. 30, 2015 - USD ($) $ in Millions	Total
California Solar Partnership [Member]
Business Acquisition [Line Items]
Equity Method Investment Ownership Percentage	50.00%
Equity Investment In Solar Projects	$ 109
Additional Equity investment in solar projects	12
Black Oak Getty Wind [Member]
Business Acquisition [Line Items]
Total business acquisition costs	$ 8
Ownership Percentage in consolidated entity	100.00%