RECENT INVESTMENT ACTIVITY (DETAILS) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Deconsolidation of business [Line Items]
Proceeds from sale, net of transaction costs	$ 68
Cash	(2)
Property, plant and equipment, net	(247)
Other assets	(11)
Accounts payable and accrued expenses	82
Long-term debt including current portion	97
Accumulated other comprehensive income	(2)
Other long-term liabilities	3
Gain on sale of equity interest and assets	(27)
Equity method investments upon deconsolidation	(39)
Gain on sale of assets, after tax	16
Proceeds from sale of equity interest and assets, net of cash sold	66	371
Mesquite Solar 1 [Member]
Deconsolidation of business [Line Items]
Gain on sale of equity interest and assets		74
Gain on sale of assets, after tax		44
Proceeds From Divestiture Of Businesses		$ 371