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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Oct. 31, 2021
Earnings Per Share [Abstract] |
Schedule of Computation of Class Based Basic and Diluted Earnings Per Share | The Company calculates EPS as follows:
Basic | = | 40% * Average Class A Shares Outstanding | * | Undistributed Net Income | + | Class A Dividends Per Share
Class A EPS | 40% * Average Class A Shares Outstanding + 60% * Average Class B Shares Outstanding | Average Class A Shares Outstanding
Diluted | = | 40% * Average Class A Shares Outstanding | * | Undistributed Net Income | + | Class A Dividends Per Share
Class A EPS | 40% * Average Class A Shares Outstanding + 60% * Average Class B Shares Outstanding | Average Diluted Class A Shares Outstanding
Basic | = | 60% * Average Class B Shares Outstanding | * | Undistributed Net Income | + | Class B Dividends Per Share
Class B EPS | 40% * Average Class A Shares Outstanding + 60% * Average Class B Shares Outstanding | Average Class B Shares Outstanding
|  | * Diluted Class B EPS calculation is identical to Basic Class B calculation
Schedule of Computation of Earnings Per Share Basic and Diluted | The following table provides EPS information for each period, respectively:
| Year Ended October 31,
(in millions, except per share data) | 2021 |  | 2020 |  | 2019
Numerator |  |  |  |  |
Numerator for basic and diluted EPS – |  |  |  |  |
Net income attributable to Greif | $ | 390.7 |  |  | $ | 108.8 |  |  | $ | 171.0 |
Cash dividends | (105.8) |  |  | (104.3) |  |  | (104.0) |
Undistributed net income attributable to Greif, Inc. | $ | 284.9 |  |  | $ | 4.5 |  |  | $ | 67.0 |
Denominator |  |  |  |  |
Denominator for basic EPS – |  |  |  |  |
Class A common stock | 26.5 |  |  | 26.4 |  |  | 26.2 |
Class B common stock | 22.0 |  |  | 22.0 |  |  | 22.0 |
Denominator for diluted EPS – |  |  |  |  |
Class A common stock | 26.7 |  |  | 26.4 |  |  | 26.2 |
Class B common stock | 22.0 |  |  | 22.0 |  |  | 22.0 |
EPS Basic |  |  |  |  |
Class A common stock | $ | 6.57 |  |  | $ | 1.83 |  |  | $ | 2.89 |
Class B common stock | $ | 9.84 |  |  | $ | 2.74 |  |  | $ | 4.33 |
EPS Diluted |  |  |  |  |
Class A common stock | $ | 6.54 |  |  | $ | 1.83 |  |  | $ | 2.89 |
Class B common stock | $ | 9.84 |  |  | $ | 2.74 |  |  | $ | 4.33 |
Schedule of Company's Class A and Class B Common and Treasury Shares | The following table summarizes the Company’s Class A and Class B common and treasury shares at the specified dates:
| Authorized Shares |  | Issued Shares |  | Outstanding Shares |  | Treasury Shares
October 31, 2021: |  |  |  |  |  |  |
Class A common stock | 128,000,000 |  |  | 42,281,920 |  |  | 26,550,924 |  |  | 15,730,996 |
Class B common stock | 69,120,000 |  |  | 34,560,000 |  |  | 22,007,725 |  |  | 12,552,275 |
October 31, 2020: |  |  |  |  |  |  |
Class A common stock | 128,000,000 |  |  | 42,281,920 |  |  | 26,441,986 |  |  | 15,839,934 |
Class B common stock | 69,120,000 |  |  | 34,560,000 |  |  | 22,007,725 |  |  | 12,552,275 |
Schedule of Reconciliation of Shares Used to Calculate Basic and Diluted Earnings Per Share | The following is a reconciliation of the shares used to calculate basic and diluted earnings per share:
| Year Ended October 31,
| 2021 |  | 2020 |  | 2019
Class A Common Stock: |  |  |  |  |
Basic shares | 26,525,529 |  |  | 26,382,838 |  |  | 26,189,445 |
Assumed conversion of stock options and unvested shares | 133,692 |  |  | 7,805 |  |  | 25,666 |
Diluted shares | 26,659,221 |  |  | 26,390,643 |  |  | 26,215,111 |
Class B Common Stock: |  |  |  |  |
Basic and diluted shares | 22,007,725 |  |  | 22,007,725 |  |  | 22,007,725 |

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