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Pension and Postretirement Benefits (Tables)
 3 Months Ended
Mar. 31, 2017
Pension Plans  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Components of Net Periodic Benefit Expense
Net periodic pension expense for the three months ended March 31, 2017 and 2016 is presented below:
 
 
 
Three Months Ended
March 31, 2017
 
Three Months Ended
March 31, 2016
 
 
Total
 
U.S.
Plans
 
Int’l.
Plans
 
Total
 
U.S.
Plans
 
Int’l.
Plans
Service cost
 
$
1.6

 
$
—

 
$
1.6

 
$
1.8

 
$
—

 
$
1.8

Interest cost
 
69.9

 
52.5

 
17.4

 
80.5

 
57.6

 
22.9

Expected return on plan assets
 
(89.4
)
 
(58.8
)
 
(30.6
)
 
(99.4
)
 
(63.4
)
 
(36.0
)
Amortization of prior service benefit
 
(1.3
)
 
(0.6
)
 
(0.7
)
 
(1.4
)
 
(0.6
)
 
(0.8
)
Recognized net actuarial loss
 
43.7

 
30.9

 
12.8

 
38.8

 
28.7

 
10.1

Net periodic pension expense
 
$
24.5

 
$
24.0

 
$
0.5

 
$
20.3

 
$
22.3

 
$
(2.0
)
Other Postretirement Benefit Plans  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Components of Net Periodic Benefit Expense
Net periodic postretirement benefit expense for the three months ended March 31, 2017 and 2016 is presented below:
 
 
 
Three Months Ended
March 31,
 
 
2017
 
2016
Service cost
 
$
0.1

 
$
0.1

Interest cost
 
1.5

 
1.6

Expected return on assets
 
(0.1
)
 
(0.1
)
Recognized net actuarial loss
 
0.3

 
0.3

Amortization of prior service benefit
 
(0.1
)
 
—

Net periodic postretirement benefit expense
 
$
1.7

 
$
1.9