INCOME TAXES Income Taxes (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2014	Jul. 31, 2015
Trunkline LNG [Member]
Income Tax Expense (Benefit)	$ 81
Tax Year 2006 [Member]
Amount of Deferred Gain Challenged by IRS		$ 545
Deferred Gain Associated with Like Kind Exchange		690
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority		$ 6