v3.6.0.2

SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - NONCONTROLLING INTERESTS (Details) $ / shares in Units, MXN in Millions, $ in Millions |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 13, 2016 USD ($) $ / shares MXN / $ shares | Oct. 13, 2016 MXN shares | Dec. 31, 2014 USD ($) shares | Dec. 31, 2016 USD ($) | Oct. 19, 2016 | Oct. 18, 2016 | Nov. 30, 2014
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Impact of issuance on equity |  |  |  | $ 1,701 |  |  |
IEnova [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Price of shares issued (in pesos per share) | $ / shares | $ 80.00 |  |  |  |  |  |
Additional shares purchased | shares | 83,125,000 |  |  |  |  |  |
Cash consideration (fair value of total consideration) | $ 351 |  |  |  |  |  |
Shares issued | shares | 380,000,000 | 380,000,000 |  |  |  |  |
Proceeds from sale of shares | $ 1,570 | MXN 29,860 |  |  |  |  |
Exchange rate (in pesos) | MXN / $ | 18.96 |  |  |  |  |  |
Ownership interest |  |  |  |  | 66.40% | 81.10% |
IEnova [Member] | Bridge Loan [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Repayments of debt | $ 1,150 |  |  |  |  |  |
IEnova [Member] | Related Party Debt [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Repayments of debt | 100 |  |  |  |  |  |
IEnova [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Repayments of debt | 250 |  |  |  |  |  |
Ventika [Member] | IEnova [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Cash consideration (fair value of total consideration) | $ 50 |  |  |  |  |  |
Shareholders' equity [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Impact of issuance on equity |  |  |  | 281 |  |  |
Shareholders' equity [Member] | IEnova [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Impact of issuance on equity |  |  |  | 281 |  |  |
Non-controlling interests [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Impact of issuance on equity |  |  |  | 1,420 |  |  |
Non-controlling interests [Member] | IEnova [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Impact of issuance on equity |  |  |  | 948 |  |  |
Sempra Renewables [Member] | Noncontrolling Tax Equity Investors [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Proceeds from sale of noncontrolling interests |  |  |  | $ 472 |  |  |
Sempra South American Utilities [Member] | Luz Del Sur [Member] |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |
Additional shares purchased | shares |  |  | 18,625,594 |  |  |  |
Cash consideration (fair value of total consideration) |  |  | $ 74 |  |  |  |
Ownership interest |  |  | 83.60% |  |  |  | 79.80%

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