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Employee Benefits
3 Months Ended
Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]  
Employee Benefits
Employee Benefits
Net periodic (income) expense for our qualified and non-qualified pension plans included the following components:
 
Pension Plans
 
Three Months Ended March 31,
 
2015
 
2014
 
(Dollars in millions)
Service cost
$
22

 
20

Interest cost
141

 
151

Expected return on plan assets
(226
)
 
(223
)
Recognition of prior service cost
1

 
1

Recognition of actuarial loss
38

 
5

Net periodic pension benefit income
$
(24
)
 
(46
)

Net periodic expense (income) for our post-retirement benefit plans included the following components:
 
Post-Retirement Benefit Plans
 
Three Months Ended March 31,
 
2015
 
2014
 
(Dollars in millions)
Service cost
$
6

 
5

Interest cost
35

 
40

Expected return on plan assets
(5
)
 
(8
)
Recognition of prior service cost
5

 
4

Net periodic post-retirement benefit expense
$
41

 
41


We report net periodic benefit (income) expense for our qualified pension, non-qualified pension and post-retirement benefit plans in cost of services and products and selling, general and administrative expenses in our consolidated statements of operations.