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Defined Benefits (Tables)
 3 Months Ended
Mar. 31, 2016
Compensation and Retirement Disclosure [Abstract]  
Schedule Of Net Periodic Defined Benefit Costs (Credits)
The table below provides the components of net periodic defined benefit costs for Talen Energy pension plans for the three months ended March 31. The net periodic defined benefit costs for Talen Energy's other postretirement benefit plans for the three months ended March 31, 2016 and 2015 were insignificant.
 

2016

2015
Service cost

$
10


$
1

Interest cost

19


2

Expected return on plan assets

(23
)

(3
)
Amortization of:

 

 
Actuarial (gain) loss

5


1

Net periodic defined benefit costs (credits)

$
11


$
1