XML 138 R1.htm IDEA: XBRL DOCUMENT v2.4.1.9
Document and Entity Information (USD $)
 12 Months Ended
Dec. 31, 2014
Jan. 30, 2015
Jun. 30, 2014
Entity Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2014    
Document Fiscal Year Focus 2014    
Document Fiscal Period Focus FY    
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   506,179,029dei_EntityCommonStockSharesOutstanding  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 20,598,517,672dei_EntityPublicFloat
Power [Member]      
Entity Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2014    
Document Fiscal Year Focus 2014    
Document Fiscal Period Focus FY    
Entity Registrant Name PSEG POWER LLC    
Entity Central Index Key 0001158659    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
PSE&G [Member]      
Entity Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2014    
Document Fiscal Year Focus 2014    
Document Fiscal Period Focus FY    
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   132,450,344dei_EntityCommonStockSharesOutstanding
/ dei_LegalEntityAxis
= pseg_PseAndGMember		  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes