DEBT AND CREDIT FACILITIES 3 (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Copper Mountain Solar 3 [Member]	Sep. 30, 2014 Energia Sierra Juarez wind project [Member]	Sep. 30, 2014 Energia Sierra Juarez wind project [Member] Term Loan, Due June 2033 [Member]
Schedule of Equity Method Investments [Line Items]
Deconsolidation of debt	$ 179	$ 443	$ 97		$ 82
Percentage of equity interest sold			50.00%	50.00%