SUBSEQUENT EVENT (Details) $ in Millions	Dec. 31, 2015 USD ($)
Sempra Mexico Segment [Member]
Long Lived Assets Held-for-sale [Line Items]
Book Value Held For Sale	$ 262

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_LongLivedAssetsHeldForSaleLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration