XML 125 R109.htm IDEA: XBRL DOCUMENT v3.10.0.1
Schedule of Valuation and Qualifying Accounts (Detail) - Allowance for Doubtful Accounts [Member] - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Period $ 8.2 $ 6.8 $ 7.6
Addition Charged to Cost and Expenses 32.3 37.3 33.3
Net Deductions and Other [1] (28.4) (35.9) (34.1)
Balance at End of Period $ 12.1 $ 8.2 $ 6.8
[1] Primarily represents the write-off of accounts receivables net of recoveries.