v3.4.0.3

OTHER FINANCIAL DATA - OTHER NONCONTROLLING INTERESTS (Details) - USD ($) $ in Millions | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interests |  | $ 758 | $ 750 | [1]
Ownership Interests Held By Others, Bay Gas Storage Company [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Minority Interest Ownership Percentage By Noncontrolling Owners |  | 9.10% | 9.10% |
Other Noncontrolling Interests |  | $ 25 | $ 25 |
Ownership Interests Held By Others, Southern Gas Transmission [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Minority Interest Ownership Percentage By Noncontrolling Owners |  | 49.00% | 49.00% |
Other Noncontrolling Interests |  | $ 1 | $ 1 |
Ownership Interests Held By Others, Liberty Gas Storage [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Minority Interest Ownership Percentage By Noncontrolling Owners |  | 23.20% | 23.20% |
Other Noncontrolling Interests |  | $ 14 | $ 14 |
Ownership Interests Held By Others, Tecsur [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Minority Interest Ownership Percentage By Noncontrolling Owners |  | 9.80% | 9.80% |
Other Noncontrolling Interests |  | $ 4 | $ 4 |
Ownership Interests Held By Others, Luz Del Sur [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Minority Interest Ownership Percentage By Noncontrolling Owners |  | 16.40% | 16.40% |
Other Noncontrolling Interests |  | $ 171 | $ 164 |
Ownership Interests Held By Others, Chilquinta Energia [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Percent Of Ownership Held By Others Minimum | [2] | 23.50% | 23.50% |
Percent Of Ownership Held By Others Maximum | [2] | 43.40% | 43.40% |
Other Noncontrolling Interests | [2] | $ 22 | $ 21 |
Ownership Interests Held By Others, Otay Mesa VIE [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Minority Interest Ownership Percentage By Noncontrolling Owners |  | 100.00% | 100.00% |
Other Noncontrolling Interests |  | $ 51 | $ 53 |
Ownership Interests Held By Others IEnova [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Minority Interest Ownership Percentage By Noncontrolling Owners |  | 18.90% | 18.90% |
Other Noncontrolling Interests |  | $ 470 | $ 468 |
[1] | Derived from audited financial statements.
[2] | Chilquinta Energía has four subsidiaries with noncontrolling interests held by others. Percentage range reflects the highest and lowest ownership percentages among these subsidiaries.

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