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Financial Derivatives and Hedging - Schedule of Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2024 | Jul. 31, 2023 | Jul. 31, 2024 | Jul. 31, 2023
AOCI Attributable To Parent, Before Reclassification And Tax [Roll Forward] |  |  |  |  |  |  |  |  |
Stockholders' equity, beginning balance |  | $ 7,803.9 | [1] | $ 7,378.0 | [1] | $ 7,551.0 | [2] | $ 7,174.7 | [1]
Stockholders' equity, ending balance | [1] | 7,925.2 |  | 7,528.5 |  | 7,925.2 |  | 7,528.5 |
Accumulated Gain (Loss), Net, Cash Flow Hedge, Before Tax, Parent |  |  |  |  |  |  |  |  |
AOCI Attributable To Parent, Before Reclassification And Tax [Roll Forward] |  |  |  |  |  |  |  |  |
Stockholders' equity, beginning balance |  | 106.4 |  | 89.5 |  | 115.1 |  | 124.5 |
Stockholders' equity, ending balance |  | 70.7 |  | 108.8 |  | 70.7 |  | 108.8 |
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent |  |  |  |  |  |  |  |  |
AOCI Attributable To Parent, Before Reclassification And Tax [Roll Forward] |  |  |  |  |  |  |  |  |
Stockholders' equity, beginning balance |  |  |  |  |  | 87.4 |  | 94.4 |
Amount recognized in accumulated other comprehensive income on interest rate swap contracts, gross |  | (21.6) |  | 31.4 |  | (3.1) |  | 14.6 |
Amount reclassified from accumulated other comprehensive income into earnings, gross |  | (14.1) |  | (12.1) |  | (41.3) |  | (30.3) |
Stockholders' equity, ending balance |  | $ 53.6 |  | $ 82.5 |  | $ 53.6 |  | $ 82.5 |
[1] | All periods presented have been adjusted to reflect the four-for-one stock split effected on February 16, 2024. Refer to Note 1. General for further information.
[2] | All periods presented have been adjusted to reflect the four-for-one stock split effected on February 16, 2024. Refer to Note 1. General for further information.

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