DEBT AND CREDIT FACILITIES 3 (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2014
Copper Mountain Solar 3 [Member]
Schedule of Equity Method Investments [Line Items]
Deconsolidation of debt	$ 97
Percentage of equity interest sold	50.00%
Energia Sierra Juarez wind project [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest sold	50.00%
Energia Sierra Juarez wind project [Member] | Term Loan, Due June 2033 [Member]
Schedule of Equity Method Investments [Line Items]
Deconsolidation of debt	$ 82