|
Document and Entity Information
|
12 Months Ended |
|---|---|
|
Dec. 31, 2011
|
|
| Document and Entity Information [Abstract] | |
| Entity Registrant Name | San Diego Gas & Electric Company |
| Entity Central Index Key | 0000086521 |
| Document Type | 8-K |
| Document Period End Date | Dec. 31, 2011 |
| Amendment Flag | false |
| Document Fiscal Year Focus | 2011 |
| Document Fiscal Period Focus | FY |
| Current Fiscal Year End Date | --12-31 |
| Entity Filer Category | Non-accelerated Filer |