XML 85 R1.htm IDEA: XBRL DOCUMENT v2.4.0.6
Document and Entity Information
9 Months Ended
Sep. 30, 2012
Oct. 16, 2012
Entity Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2012  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus Q3  
Trading Symbol PEG  
Entity Registrant Name PUBLIC SERVICE ENTERPRISE GROUP INC  
Entity Central Index Key 0000788784  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   505,917,472
Power [Member]
   
Entity Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2012  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus Q3  
Entity Registrant Name PSEG POWER LLC  
Entity Central Index Key 0001158659  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
PSE And G [Member]
   
Entity Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2012  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus Q3  
Entity Registrant Name PUBLIC SERVICE ELECTRIC & GAS CO  
Entity Central Index Key 0000081033  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Common Stock, Shares Outstanding   132,450,344