COMMITMENTS AND CONTINGENCIES - NUCLEAR FUEL DISPOSAL (Details) - San Diego Gas and Electric Company [Member] - USD ($) $ in Millions |
1 Months Ended | ||
|---|---|---|---|
Apr. 18, 2016 |
Sep. 30, 2016 |
May 31, 2016 |
|
| Total Ownership [Member] | |||
| Jointly Owned Utility Plant Interests [Line Items] | |||
| Spent nuclear fuel damages awarded | $ 162 | ||
| Filed claims amount | $ 56 | ||
| SDG&E Ownership [Member] | |||
| Jointly Owned Utility Plant Interests [Line Items] | |||
| Spent nuclear fuel damages awarded | $ 32 | ||
| Decrease In SONGS regulatory asset | 23 | ||
| Decrease In nuclear decommissioning balancing account | 8 | ||
| Decrease In operation and maintenance cost balancing account | $ 1 | ||
| Filed claims amount | $ 11 | ||