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COMMITMENTS AND CONTINGENT LIABILITIES (Tables)
12 Months Ended
Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]  
Future minimum payments to be made under noncancelable operating leases
At December 31, 2017, future minimum payments to be made under noncancelable operating leases were as follows (in millions):
2018
$
11.8

2019
8.1

2020
4.4

2021
1.4

2022
1.5

Later years
9.6

 
$
36.8