v2.4.0.6
DOCUMENT AND ENTITY INFORMATION (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Document and Entity Information [Abstract]  
Entity Registrant Name Sempra Energy
Entity Central Index Key 0001032208
Document Type 10-K
Document Period End Date Dec. 31, 2012
Amendment Flag false
Document Fiscal Year Focus 2012
Document Fiscal Period Focus FY
Current Fiscal Year End Date --12-31
Entity Well Known Seasoned Issuer Yes
Entity Filer Category Large Accelerated Filer
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Public Float $ 16,600
Entity Common Shares Outstanding 243,290,805