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Pension and Other Postretirement Benefit Plans
 3 Months Ended
Mar. 31, 2014
Pension and Other Postretirement Benefit Plans [Abstract]  
Pension and Other Postretirement Benefit Plans [Text Block]
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

 
Pension
 
Other
Postretirement
Components of Net Periodic Benefit Expense
2014
 
2013
 
2014
 
2013
Millions
 
 
 
 
 
 
 
For the Quarter Ended March 31,
 
 
 
 
 
 
 
Service Cost

$2.1

 

$2.5

 

$0.9

 

$1.0

Interest Cost
7.4

 
6.5

 
1.8

 
1.7

Expected Return on Plan Assets
(9.6
)
 
(8.8
)
 
(2.6
)
 
(2.5
)
Amortization of Prior Service Costs (Credits)
0.1

 
0.1

 
(0.6
)
 
(0.6
)
Amortization of Net Loss
3.6

 
5.3

 
0.1

 
0.4

Net Periodic Benefit Expense

$3.6

 

$5.6

 
$(0.4)
 
—



Employer Contributions. For the quarter ended March 31, 2014, $19.5 million of ALLETE common stock was contributed to our defined benefit pension plan (no contributions for the quarter ended March 31, 2013). For the quarter ended March 31, 2014, we made no contributions to our other postretirement benefit plan ($10.8 million for the quarter ended March 31, 2013). We do not expect to make any additional contributions to our defined benefit pension plan in 2014, and we do not expect to make any contributions to our other postretirement benefit plan in 2014.