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Restructuring Expenses and Repositioning Expenses (Tables)
 9 Months Ended
Sep. 30, 2017
Restructuring and Related Activities [Abstract]  
Schedule of restructuring expenses and asset impairments
The following table presents restructuring expenses by reportable segment for the three and nine months ended September 30, 2017.
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
(In millions)
2017
 
2016
 
2017
 
2016
Catalysts Technologies
$
2.4

 
$
1.6

 
$
2.8

 
$
2.7

Materials Technologies
0.2

 
(0.1
)
 
0.5

 
15.1

Corporate
2.7

 
0.3

 
6.8

 
0.4

Total restructuring expenses
$
5.3

 
$
1.8

 
$
10.1

 
$
18.2
Schedule of restructuring liability
Restructuring Liability
(In millions)
Total
Balance, December 31, 2016
$
9.6

Accruals for severance and other costs
9.5

Payments
(10.9
)
Currency translation adjustments and other
0.1

Balance, September 30, 2017
$
8.3