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Supplemental Data (Tables)
 12 Months Ended
Jun. 30, 2018
Supplemental Data  
Additional supplemental disclosures
The following are additional required disclosures and other material items:
 
 
 
Years Ended June 30,
($ in millions)
 
2018
 
2017
 
2016
Cost Data:
 
 

 
 

 
 

Repairs and maintenance costs
 
$
108.0

 
$
99.1

 
$
101.8

Cash Flow Data:
 
 

 
 

 
 

Noncash investing and financing activities:
 
 

 
 

 
 

Sale of equity method investment
 
$
—

 
$
—

 
$
12.6

Noncash purchases of property, equipment and software
 
$
16.5

 
$
13.7

 
$
15.1

Cash paid (received) during the year for:
 
 

 
 

 
 

Interest payments, net
 
$
29.5

 
$
27.7

 
$
27.5

Income tax payments (refunds), net
 
$
33.7

 
$
(33.3
)
 
$
27.9