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Employee Benefit Plans
 3 Months Ended
Mar. 31, 2013
Employee Benefit Plans [Abstract]  
Pension and Other Postretirement Benefits Disclosure [Text Block]
7. EMPLOYEE BENEFIT PLANS

The components of net periodic benefit cost (credit) are as follows:

 
 
Pension Benefits
 
 
Three Months Ended
 
 
March 31,
 
 
2013
 
2012
 
 
(in millions)
 
 
 
 
 
Service cost
 
$
0.9

 
$
0.8

Interest cost
 
8.5

 
8.8

Expected asset return
 
(11.5
)
 
(8.0
)
Amortized loss
 
2.4

 
1.8

Amortized prior service cost
 
0.3

 
—

Net periodic benefit cost
 
$
0.6

 
$
3.4

 
 
 
 
 
Other Postretirement Benefits
 
 
Three Months Ended
 
 
March 31,
 
 
2013
 
2012
 
 
(in millions)
 
 
 

 
 

Service cost
 
$
0.1

 
$
0.1

Interest cost
 
3.3

 
3.9

Amortized loss
 
0.2

 
0.2

Amortized prior service credit
 
(0.4
)
 
(0.5
)
Curtailment gain
 
—

 
(21.8
)
Net periodic benefit cost (credit)
 
$
3.2

 
$
(18.1
)


We recorded a gain of $21.8 million to cost of goods sold for the curtailment of certain other postretirement benefits (OPEB) in the three months ended March 31, 2012. This resulted primarily from the reduction in the expected future OPEB related to the DMC and CKMF hourly associates who terminated employment from AAM as a result of our plant closures. These curtailment gains resulted in an increase in our accumulated other comprehensive loss of $21.8 million.

Due to our significant pension contributions made in 2012, we will not make any cash payments in 2013 to satisfy our regulatory funding requirements. We expect our cash outlay for other postretirement benefit obligations in 2013, net of GM cost sharing, to be approximately $15 million.