Rendering

Component: (Network and Table)
Network
2422402 - Disclosure - Asset Retirement Obligations (Details)
(http://www.talenenergy.com/role/AssetRetirementObligationsDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001622536 (http://www.sec.gov/CIK)
Asset Retirement Obligation Disclosure [Abstract]Period [Axis]
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Asset Retirement Obligation Disclosure [Abstract]
 
 
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
 
 
Balance at Beginning of Period
425,000,000  
404,000,000  
Accretion expense
35,000,000  
32,000,000  
Changes in estimate of cash flow or settlement date
25,000,000 1
(16,000,000) 
Obligations assumed in RJS Power acquisition
18,000,000  
0  
Obligations incurred
2,000,000  
13,000,000  
Obligations settled
(4,000,000) 
(8,000,000) 
Balance at End of Period
501,000,000  
 
425,000,000  
 
Changes in estimate of cash flow or settlement date, new CCR rule
41,000,000  
 
1: Includes increases in 2015 of $41 million as a result of a new CCR rule. Further changes to the AROs may be required as estimates are refined and analysis of the rule continues.