ACQUISITIONS, DIVESTITURES AND DISCONTINUED OPERATIONS - DIVESTITURES (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] - Sempra LNG [Member] - USD ($) $ in Millions	Feb. 07, 2019	Jan. 31, 2019
Mississippi Hub And Bay Gas [Member]
Business Acquisition [Line Items]
Consideration to be received	$ 322
Other Non-Utility assets [Member]
Business Acquisition [Line Items]
Consideration to be received		$ 5