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Pension and Other Postretirement Benefit Plans
 6 Months Ended
Jun. 30, 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 (Income)
2014
 
2013
 
2014
 
2013
Millions
 
 
 
 
 
 
 
For the Quarter Ended June 30,
 
 
 
 
 
 
 
Service Cost

$2.1

 

$2.5

 

$0.8

 

$1.0

Interest Cost
7.5

 
6.5

 
1.9

 
1.7

Expected Return on Plan Assets
(9.5
)
 
(8.8
)
 
(2.6
)
 
(2.4
)
Amortization of Prior Service Credits
—

 
—

 
(0.6
)
 
(0.7
)
Amortization of Net Loss
3.5

 
5.4

 
0.1

 
0.4

Net Periodic Benefit Expense (Income)

$3.6

 

$5.6

 
$(0.4)
 
—

 
 
 
 
 
 
 
 
For the Six Months Ended June 30,
 
 
 
 
 
 
 
Service Cost

$4.2

 

$5.0

 

$1.7

 

$2.0

Interest Cost
14.9

 
13.0

 
3.7

 
3.4

Expected Return on Plan Assets
(19.1
)
 
(17.6
)
 
(5.2
)
 
(4.9
)
Amortization of Prior Service Costs (Credits)
0.1

 
0.1

 
(1.2
)
 
(1.3
)
Amortization of Net Loss
7.1

 
10.7

 
0.2

 
0.8

Net Periodic Benefit Expense (Income)

$7.2

 

$11.2

 
$(0.8)
 
—



Employer Contributions. For the six months ended June 30, 2014, $19.5 million of ALLETE common stock was contributed to our defined benefit pension plan (no contributions for the six months ended June 30, 2013). For the six months ended June 30, 2014, we made no contributions to our other postretirement benefit plan ($10.8 million for the six months ended June 30, 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.