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Insurance (Tables) | 9 Months Ended
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Jul. 31, 2021
Insurance [Abstract] |
Schedule of Insurance Related Balances and Activity | Insurance Related Balances and Activity
(in millions) | July 31, 2021 |  | October 31, 2020
Insurance claim reserves, excluding medical and dental | $ | 488.8 |  |  | $ | 504.9 |
Medical and dental claim reserves | 10.5 |  |  | 16.6 |
Insurance recoverables | 67.4 |  |  | 70.1 |
Schedule of Instruments Used to Collateralize Insurance Obligations | Instruments Used to Collateralize Our Insurance Obligations
(in millions) | July 31, 2021 |  | October 31, 2020
Standby letters of credit | $ | 139.0 |  |  | $ | 143.6 |
Surety bonds | 83.8 |  |  | 82.6 |
Restricted insurance deposits | 0.7 |  |  | 0.7 |
Total | $ | 223.5 |  |  | $ | 226.9 |

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