XML 36 R37.htm IDEA: XBRL DOCUMENT v2.4.0.8
Pension and Postretirement Health and Life Benefits (Tables)
 6 Months Ended
Jun. 30, 2014
General Discussion of Pension and Other Postretirement Benefits [Abstract]  
Schedule of Net Benefit Costs
 
Defined Benefit Pension Plans
 
Postretirement Health and Life Benefit Plans
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2014
 
2013
 
2014
 
2013
 
2014
 
2013
 
2014
 
2013
Service costs
$
0.6

 
$
3.7

 
$
1.2

 
$
7.4

 
$
0.4

 
$
0.9

 
$
0.9

 
$
1.8

Interest costs
10.6

 
11.0

 
21.1

 
22.0

 
2.5

 
2.3

 
5.0

 
4.5

Expected returns on plan assets (gains)
(12.8
)
 
(12.7
)
 
(25.6
)
 
(25.5
)
 
(0.5
)
 
(0.6
)
 
(1.0
)
 
(1.2
)
Amortization of actuarial (gains) losses, net
0.3

 
6.1

 
0.6

 
12.2

 
—

 
0.7

 
—

 
1.4

Amortization of prior service costs (credits)
—

 
0.5

 
—

 
0.7

 
(0.1
)
 
—

 
(0.2
)
 
—

Curtailment gains
—

 
(0.7
)
 
—

 
(0.7
)
 
—

 
—

 
—

 
—

Net benefit costs (credits)
$
(1.3
)
 
$
7.9

 
$
(2.7
)
 
$
16.1

 
$
2.3

 
$
3.3

 
$
4.7

 
$
6.5