XML 40 R1.htm IDEA: XBRL DOCUMENT v3.4.0.3
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2016
Apr. 29, 2016
Entity Registrant Name TALEN ENERGY CORPORATION  
Entity Central Index Key 0001622536  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Document Type 10-Q  
Document Period End Date Mar. 31, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   128,526,720
Talen Energy Supply    
Entity Registrant Name TALEN ENERGY SUPPLY, LLC  
Entity Central Index Key 0001161976  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Document Type 10-Q  
Document Period End Date Mar. 31, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   0