SUBSEQUENT EVENTS (Details) - Subsequent Event [Member] - IEnova [Member] MXN / shares in Units, MXN in Millions, $ in Millions	Oct. 13, 2016 USD ($) shares	Oct. 13, 2016 MXN MXN / shares MXN / $ shares	Oct. 19, 2016
Subsequent Event [Line Items]
Public offering price per share | MXN / shares		MXN 80.00
Shares acquired in public offering | shares		83,125,000
Purchase price of shares acquired | $	$ 351
Shares issued in public offering | shares	380,000,000	380,000,000
Parent Ownership Percentage of Consolidated Subsidiary			66.40%
Proceeds from follow-on share offering	$ 1,570	MXN 29,860
Exchange rate | MXN / $		18.96
Bridge Loan [Member]
Subsequent Event [Line Items]
Repayments of Notes Payable | $	$ 1,150