DERIVATIVE COMMODITY VOLUMES (Details) |
Mar. 31, 2016 |
Dec. 31, 2015 |
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|---|---|---|---|---|---|---|---|
| S D G E Segment [Member] | |||||||
| Derivatives, Fair Value [Line Items] | |||||||
| Commodity Derivative Volumes Natural Gas | [1] | 60 | 70 | ||||
| Commodity Derivative Volumes Congestion Revenue Rights | [2] | 33 | 36 | ||||
| Commodity Derivative Volumes Electric Power | [2] | 0 | 1 | ||||
| So Cal Gas Segment [Member] | |||||||
| Derivatives, Fair Value [Line Items] | |||||||
| Commodity Derivative Volumes Natural Gas | [1] | 0 | 1 | ||||
| Sempra Natural Gas Segment [Member] | |||||||
| Derivatives, Fair Value [Line Items] | |||||||
| Commodity Derivative Volumes Natural Gas | [1] | 39 | 43 | ||||
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