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Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018
Derivative gain (loss), tax | $ 4.0 | $ 8.6 | $ 3.3
Defined benefit plan, tax | $ (4.8) | $ 1.1 | $ (4.1)
Adoption of ASU 2016-16 |  | gef:Accountingstandardsupdate201616_1 |
Class A common stock |  |  |
Dividend paid (usd per share) | $ 1.76 | $ 1.76 |
Common Stock, Dividends, Per Share, Declared (in USD per share) |  |  | $ 1.70
Class B common stock |  |  |
Dividend paid (usd per share) | $ 2.63 | $ 2.63 | $ 2.54

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