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Insurance (Tables)
 12 Months Ended
Oct. 31, 2016
Insurance [Abstract]  
Insurance Reserves Rollforward
Casualty Program Insurance Reserves Rollforward
 
 
Years Ended October 31,
(in millions)
 
2016
 
2015
 
2014
Net balance at beginning of year
 
$
312.7

 
$
277.8

 
$
282.2

Change in case reserves plus IBNR - current year
 
104.5

 
88.7

 
78.6

Change in case reserves plus IBNR - prior year
 
35.8

 
40.1

 
12.7

Claims paid
 
(104.8
)
 
(93.9
)
 
(95.7
)
Net balance at October 31
 
348.2

 
312.7

 
277.8

Recoverables
 
69.7

 
65.9

 
66.4

Gross balance at October 31(1)
 
$
417.9

 
$
378.6

 
$
344.2

(1) Includes reserves related to discontinued operations of approximately $12 million for both 2016 and 2015 and $11 million for 2014.
Standby Letters of Credit, Surety Bonds and Restricted Insurance Deposits Outstanding to Collateralize Self-Insurance Obligations
Instruments Used to Collateralize Our Insurance Obligations
 
As of October 31,
(in millions)
2016
 
2015
Standby letters of credit
$
118.3

 
$
105.4

Surety bonds
57.2

 
55.9

Restricted insurance deposits
11.2

 
11.4

Total
$
186.7

 
$
172.7