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Employee Benefit Plans
 6 Months Ended
Jun. 30, 2011
Employee Benefit Plans [Abstract]  
Pension and Other Postretirement Benefits Disclosure [Text Block]
EMPLOYEE BENEFIT PLANS


The components of net periodic benefit cost are as follows:


 
 
Pension Benefits
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2011
 
2010
 
2011
 
2010
 
 
(in millions)
 
 
 
 
 
 
 
 
 
Service cost
 
$
1.1


 
$
1.3


 
$
2.2


 
$
2.5


Interest cost
 
9.2


 
9.2


 
18.4


 
18.5


Expected asset return
 
(7.9
)
 
(8.0
)
 
(15.8
)
 
(16.0
)
Amortized loss
 
1.1


 
0.6


 
2.2


 
1.2


Net periodic benefit cost
 
$
3.5


 
$
3.1


 
$
7.0


 
$
6.2


 
 
 
 
 
Other Postretirement Benefits
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2011
 
2010
 
2011
 
2010
 
 
(in millions)
 
 
 


 
 


 
 


 
 


Service cost
 
$
0.2


 
$
0.2


 
$
0.4


 
$
0.5


Interest cost
 
4.3


 
4.0


 
8.6


 
8.0


Amortized gain
 
0.1


 
(0.4
)
 
0.2


 
(0.7
)
Amortized prior service credit
 
(0.8
)
 
(0.7
)
 
(1.6
)
 
(1.5
)
Net periodic benefit cost
 
$
3.8


 
$
3.1


 
$
7.6


 
$
6.3




Our regulatory pension funding requirements in 2011 are approximately $25 million. We expect our cash outlay for other postretirement benefit obligations in 2011, net of GM cost sharing, to be approximately $15 million.