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Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017
Income tax expense, unrealized gain on derivatives | $ 8.6 | $ 3.3 |
Income tax (expense) benefit on minimum pension liability | $ 1.1 | $ (4.1) | $ (3.1)
Class A common stock |  |  |
Dividend paid (usd per share) | $ 1.76 | $ 1.70 | $ 1.68
Class B common stock |  |  |
Dividend paid (usd per share) | $ 2.63 | $ 2.54 | $ 2.51

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