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Network
2322301 - Disclosure - Asset Retirement Obligations (Tables)
(http://www.talenenergy.com/role/AssetRetirementObligationsTables)
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
Asset Retirement Obligation Disclosure [Abstract]
 
Schedule of Change in Asset Retirement Obligation
The changes in the carrying amounts of Talen Energy's AROs were as follows.
 
2015
 
2014
ARO at beginning of period
$
425

 
$
404

Accretion expense
35

 
32

Changes in estimate of cash flow or settlement date (a)
25

 
(16
)
Obligations assumed in RJS Power acquisition
18

 
—

Obligations incurred
2

 
13

Obligations settled
(4
)
 
(8
)
ARO at end of period
$
501

 
$
425



(a)
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.