XML 53 R29.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Pension Benefits and Postretirement Benefits Other Than Pensions (Tables)
 6 Months Ended
Jun. 30, 2011
Pension Plans [Member]
  
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Defined Benefit Plans Disclosures [Text Block]
The components of Pension Expense for the six and three months ended June 30, 2011 and 2010 were:
 
 
Six Months Ended
 
Three Months Ended
(Dollars in Millions)
 
Jun 30,

2011
 
Jun 30,

2010
 
Jun 30,

2011
 
Jun 30,

2010
Service Cost on Benefits Earned
 
$
5.1


 
$
4.5


 
$
2.5


 
$
2.0


Interest Cost on Projected Benefit Obligation
 
11.5


 
11.2


 
5.8


 
5.7


Expected Return on Plan Assets
 
(12.2
)
 
(11.8
)
 
(6.1
)
 
(5.9
)
Net Amortization and Deferral
 
4.7


 
1.1


 
2.6


 
0.7


Total Pension Expense
 
$
9.1


 
$
5.0


 
$
4.8


 
$
2.5
Postretirement Benefits Other than Pensions [Member]
  
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Defined Benefit Plans Disclosures [Text Block]
The components of Postretirement Benefits Other than Pensions Expense for the six and three months ended June 30, 2011 and 2010 were:
 
 
Six Months Ended
 
Three Months Ended
(Dollars in Millions)
 
Jun 30,

2011
 
Jun 30,

2010
 
Jun 30,

2011
 
Jun 30,

2010
Service Cost on Benefits Earned
 
$
0.1


 
$
0.1


 
$
0.1


 
$
0.1


Interest Cost on Projected Benefit Obligation
 
0.9


 
1.0


 
0.4


 
0.5


Net Amortization and Deferral
 
(0.3
)
 
(0.5
)
 
(0.1
)
 
(0.1
)
Total Postretirement Benefits Other than Pensions Expense
 
$
0.7


 
$
0.6


 
$
0.4


 
$
0.5