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Defined Benefit Postretirement Plans
 3 Months Ended
Mar. 31, 2016
Defined Benefit Postretirement Plans Disclosure [Abstract]  
Defined Benefit Postretirement Plans [Text Block]
Defined Benefit Postretirement Plans
The following summarizes the components of net periodic benefit cost:
 
 
 
 
 
 
 
 
 
Three Months Ended March 31,
  
Pension Benefits
 
Other Benefits
(In millions)
2016
 
2015
 
2016
 
2015
Service cost
$
6

 
$
12

 
$
1

 
$
1

Interest cost
11

 
14

 
3

 
3

Expected return on plan assets
(15
)
 
(19
)
 
—

 
—

Amortization:
 
 
 

 
 

 
 

– prior service cost (credit)
(2
)
 
1

 
(1
)
 
(1
)
– actuarial loss
3

 
7

 
—

 
—

Net settlement loss(a)
48

 
17

 
—

 
—

Net curtailment loss (gain) (b)
—

 
1

 
—

 
(6
)
Net periodic benefit cost
$
51


$
33


$
3


$
(3
)

(a) 
Settlements are recognized as they occur, once it is probable that lump sum payments from a plan for a given year will exceed the plan's total service and interest cost for that year.
(b) 
Related to workforce reductions, which reduced the future expected years of service for employees participating in the plans.
During the first three months of 2016, we recorded the effects of settlements of our U.S. pension plans. As required, we remeasured the plans' assets and liabilities as of the applicable balance sheet dates. The cumulative effects of these events are included in the remeasurement and reflected in both the pension liability and net periodic benefit cost.
During the first three months of 2016, we made contributions of $14 million to our funded pension plans.  We expect to make additional contributions up to an estimated $48 million to our funded pension plans over the remainder of 2016.  During the first three months of 2016, we made payments of $19 million and $5 million related to unfunded pension plans and other postretirement benefit plans, respectively.