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Document And Entity Information
3 Months Ended
Mar. 31, 2012
Apr. 24, 2012
Document Type 10-Q  
Document Period End Date Mar. 31, 2012  
Amendment Flag false  
Entity Filer Category Large Accelerated Filer  
Entity Registrant Name PG&E CORP  
Entity Central Index Key 0001004980  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus Q1  
PG&E Corporation [Member]
   
Entity Common Stock, Shares Outstanding   422,320,110
Pacific Gas And Electric Company [Member]
   
Document Type 10-Q  
Document Period End Date Mar. 31, 2012  
Amendment Flag false  
Entity Filer Category Non-accelerated Filer  
Entity Registrant Name PACIFIC GAS & ELECTRIC Co  
Entity Central Index Key 0000075488  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus Q1  
Entity Common Stock, Shares Outstanding   264,374,809