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Employee Benefit Plans
 3 Months Ended
Mar. 31, 2015
Defined Pension, Defined Contribution and Other Postretirement Benefit Plans [Abstract]  
Employee Benefit Plans [Text Block]
Employee Benefit Plans
Pension and Postretirement Plans. We sponsor both funded and unfunded domestic and foreign defined pension and other postretirement benefit plans, and defined contribution plans. Contributions to our plans were as follows:
 
Quarter Ended March 31,
(Dollars in millions)
2015
 
2014
Defined benefit plans
$
45

 
$
84

Defined contribution plans
$
96

 
$
90


There were no contributions to our domestic defined benefit pension plans in the quarters ended March 31, 2015 and 2014. The following table illustrates the components of net periodic benefit cost for our defined pension and other postretirement benefit plans:
 
Pension Benefits
Quarter Ended March 31,
 
Other Postretirement Benefits
Quarter Ended March 31,
(Dollars in millions)
2015
 
2014
 
2015
 
2014
Service cost
$
125

 
$
122

 
$
1

 
$
1

Interest cost
351

 
380

 
8

 
10

Expected return on plan assets
(569
)
 
(554
)
 
—

 
—

Amortization
(3
)
 
(2
)
 
—

 
—

Recognized actuarial net loss (gain)
221

 
107

 
(1
)
 
(1
)
Net settlement and curtailment loss
6

 
—

 
—

 
—

Total net periodic benefit cost
$
131

 
$
53

 
$
8

 
$
10