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Insurance (Tables)
 6 Months Ended
Apr. 30, 2017
Insurance [Abstract]  
Schedule of Insurance Related Balances and Activity
Insurance Related Balances and Activity
(in millions)
April 30, 2017
 
October 31, 2016
Insurance claim reserves excluding medical and dental
$
432.7

 
$
417.9

Medical and dental claim reserves
6.8

 
5.9

Insurance recoverables
69.8

 
69.7
Schedule of Instruments Used to Collateralize Insurance Obligations
Instruments Used to Collateralize Our Insurance Obligations
(in millions)
April 30, 2017
 
October 31, 2016
Standby letters of credit
$
120.1

 
$
118.3

Surety bonds
59.5

 
57.2

Restricted insurance deposits
11.2

 
11.2

Total
$
190.8

 
$
186.7