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Employee Benefits (Tables)
 9 Months Ended
Sep. 30, 2017
Retirement Benefits [Abstract]  
Schedule of (Income) Charges Related to Benefit Plans
The following table presents the components of Net periodic postretirement benefit cost relating to Salaried VEBA for the periods presented (in millions of dollars):
 
Quarter Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2017
 
2016
 
2017
 
2016
Salaried VEBA1:
 
 
 
 
 
 
 
Interest cost
$
0.8

 
$
0.7

 
$
2.3

 
$
2.2

Expected return on plan assets
(1.0
)
 
(1.0
)
 
(3.1
)
 
(3.0
)
Amortization of prior service cost
1.2

 
1.0

 
3.6

 
3.0

Amortization of net actuarial loss
0.2

 
0.1

 
0.6

 
0.3

Total net periodic postretirement benefit cost relating to Salaried VEBA
$
1.2

 
$
0.8

 
$
3.4

 
$
2.5


____________
1 
The service cost was insignificant for all periods presented.
The following table presents the total charges (income) related to all benefit plans for the periods presented (in millions of dollars):
 
Quarter Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2017
 
2016
 
2017
 
2016
Included within Fabricated Products:
 
 
 
 
 
 
 
Deferred compensation plan
$
0.1

 
$
0.1

 
$
0.3

 
$
0.2

Defined contribution plans
1.3

 
1.6

 
6.8

 
6.7

Multiemployer pension plans
1.1

 
1.2

 
3.4

 
3.5

Total Fabricated Products
$
2.5

 
$
2.9

 
$
10.5

 
$
10.4

 
 
 
 
 
 
 
 
Included within All Other:
 
 
 
 
 
 
 
Deferred compensation plan
0.4

 
0.4

 
1.1

 
0.6

Defined contribution plans
0.1

 
0.1

 
0.7

 
0.7

Net periodic postretirement benefit cost relating to Salaried VEBA
1.2

 
0.8

 
3.4

 
2.5

Loss (gain) on removal of Union VEBA net assets
0.5

 
—

 
(0.8
)
 
(0.1
)
Total All Other
$
2.2

 
$
1.3

 
$
4.4

 
$
3.7

Total
$
4.7

 
$
4.2

 
$
14.9

 
$
14.1