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Insurance (Tables) | 9 Months Ended
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Jul. 31, 2018
Insurance [Abstract] |
Schedule of Insurance Related Balances and Activity | Insurance Related Balances and Activity
(in millions) | July 31, 2018 |  | October 31, 2017
Insurance claim reserves excluding medical and dental | $ | 500.4 |  |  | $ | 485.6 |
Medical and dental claim reserves | 8.9 |  |  | 9.8 |
Insurance recoverables | 73.8 |  |  | 73.1 |
Schedule of Instruments Used to Collateralize Insurance Obligations | Instruments Used to Collateralize Our Insurance Obligations
(in millions) | July 31, 2018 |  | October 31, 2017
Standby letters of credit | $ | 146.7 |  |  | $ | 137.6 |
Surety bonds | 89.0 |  |  | 77.5 |
Restricted insurance deposits | 0.6 |  |  | 11.2 |
Total | $ | 236.3 |  |  | $ | 226.3 |

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