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POST-RETIREMENT BENEFIT PLANS - Amounts Recognized in Consolidated Financial Statements - in Consolidated Balance Sheets (Details) - USD ($) $ in Millions | Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2020
--- | --- | --- | ---
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] |  |  |
Unrecognized net actuarial loss | $ 93.4 | $ 87.2 |
Unrecognized prior service credit | (1.4) | (2.0) |
Accumulated other comprehensive loss - Pre-tax | 92.0 | 85.2 | $ 150.6
Amounts recognized in the Consolidated Balance Sheets consist of: |  |  |
Prepaid benefit cost | 30.8 | 39.9 |
Accrued benefit liability | (58.0) | (78.3) |
Accumulated other comprehensive loss - Pre-tax | 92.0 | 85.2 | $ 150.6
Net amount recognized | 64.8 | 46.8 |
United States |  |  |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] |  |  |
Unrecognized net actuarial loss | 41.0 | 29.9 |
Unrecognized prior service credit | (0.4) | (0.7) |
Accumulated other comprehensive loss - Pre-tax | 40.6 | 29.2 |
Amounts recognized in the Consolidated Balance Sheets consist of: |  |  |
Prepaid benefit cost | 11.7 | 2.7 |
Accrued benefit liability | (30.8) | (35.5) |
Accumulated other comprehensive loss - Pre-tax | 40.6 | 29.2 |
Net amount recognized | 21.5 | (3.6) |
Germany |  |  |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] |  |  |
Unrecognized net actuarial loss | 2.3 | 11.9 |
Unrecognized prior service credit | 0.0 | 0.0 |
Accumulated other comprehensive loss - Pre-tax | 2.3 | 11.9 |
Amounts recognized in the Consolidated Balance Sheets consist of: |  |  |
Prepaid benefit cost | 0.0 | 0.0 |
Accrued benefit liability | (25.9) | (39.3) |
Accumulated other comprehensive loss - Pre-tax | 2.3 | 11.9 |
Net amount recognized | (23.6) | (27.4) |
United Kingdom |  |  |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] |  |  |
Unrecognized net actuarial loss | 43.2 | 36.2 |
Unrecognized prior service credit | 0.0 | 0.0 |
Accumulated other comprehensive loss - Pre-tax | 43.2 | 36.2 |
Amounts recognized in the Consolidated Balance Sheets consist of: |  |  |
Prepaid benefit cost | 15.8 | 31.1 |
Accrued benefit liability | 0.0 | 0.0 |
Accumulated other comprehensive loss - Pre-tax | 43.2 | 36.2 |
Net amount recognized | 59.0 | 67.3 |
Netherlands |  |  |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] |  |  |
Unrecognized net actuarial loss | 3.9 | 4.4 |
Unrecognized prior service credit | (1.0) | (1.3) |
Accumulated other comprehensive loss - Pre-tax | 2.9 | 3.1 |
Amounts recognized in the Consolidated Balance Sheets consist of: |  |  |
Prepaid benefit cost | 0.0 | 2.0 |
Accrued benefit liability | (1.3) | 0.0 |
Accumulated other comprehensive loss - Pre-tax | 2.9 | 3.1 |
Net amount recognized | 1.6 | 5.1 |
Other International |  |  |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] |  |  |
Unrecognized net actuarial loss | 3.0 | 4.8 |
Unrecognized prior service credit | 0.0 | 0.0 |
Accumulated other comprehensive loss - Pre-tax | 3.0 | 4.8 |
Amounts recognized in the Consolidated Balance Sheets consist of: |  |  |
Prepaid benefit cost | 3.3 | 4.1 |
Accrued benefit liability | 0.0 | (3.5) |
Accumulated other comprehensive loss - Pre-tax | 3.0 | 4.8 |
Net amount recognized | $ 6.3 | $ 5.4 |

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