Quarterly report pursuant to Section 13 or 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)

v2.4.0.6
PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)
 9 Months Ended
Sep. 30, 2012
Postemployment Benefits [Abstract]  
Components Of Net Periodic Benefit Cost
The following are the components of defined benefit pension and OPEB expense for the three and nine months ended September 30, 2012 and 2011:
Defined Benefit Pension Expense
 
(In Millions)
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2012
 
2011
 
2012
 
2011
Service cost
$
8.0

 
$
6.6

 
$
24.0

 
$
17.6

Interest cost
12.1

 
12.5

 
36.4

 
38.3

Expected return on plan assets
(14.9
)
 
(16.3
)
 
(44.7
)
 
(45.5
)
Amortization:
 
 
 
 
 
 
 
Prior service costs
1.1

 
1.1

 
3.0

 
3.3

Net actuarial loss
7.4

 
4.7

 
22.4

 
14.7

Settlements
0.4

 
—

 
0.4

 
—

Net periodic benefit cost
$
14.1

 
$
8.6

 
$
41.5

 
$
28.4

Other Postretirement Benefits Expense
 
(In Millions)
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2012
 
2011
 
2012
 
2011
Service cost
$
3.7

 
$
3.6

 
$
11.2

 
$
8.3

Interest cost
5.3

 
5.5

 
15.9

 
16.7

Expected return on plan assets
(4.3
)
 
(4.1
)
 
(12.9
)
 
(12.1
)
Amortization:
 
 
 
 
 
 
 
Prior service costs
0.7

 
2.0

 
2.2

 
2.8

Net actuarial loss
2.8

 
0.8

 
8.4

 
6.6

Net periodic benefit cost
$
8.2

 
$
7.8

 
$
24.8

 
$
22.3