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ACQUISITIONS AND DIVESTITURES - Pro Forma Results (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2024 | Jul. 31, 2023 | Jul. 31, 2024 | Jul. 31, 2023
Ipackchem Acquisition |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Pro forma net sales | $ 1,454.2 | $ 1,383.1 | $ 4,120.0 | $ 4,076.5
Pro forma net income attributable to Greif, Inc. | $ 87.1 | 98.8 | $ 224.3 | 289.2
Lee Container Acquisition |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Pro forma net sales |  | 1,330.2 |  | 3,968.0
Pro forma net income attributable to Greif, Inc. |  | $ 86.0 |  | $ 298.4
Class A Common Stock | Ipackchem Acquisition |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Basic earnings per share attributable to Greif, Inc. common shareholders: (in dollars per share) | $ 1.51 | $ 1.72 | $ 3.89 | $ 5.00
Diluted earnings per share attributable to Greif, Inc. common shareholders: (in dollars per share) | 1.50 | 1.69 | 3.88 | 4.95
Class A Common Stock | Lee Container Acquisition |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Basic earnings per share attributable to Greif, Inc. common shareholders: (in dollars per share) |  | 1.50 |  | 5.16
Diluted earnings per share attributable to Greif, Inc. common shareholders: (in dollars per share) |  | 1.48 |  | 5.11
Class B Common Stock | Ipackchem Acquisition |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Basic earnings per share attributable to Greif, Inc. common shareholders: (in dollars per share) | 2.26 | 2.58 | 5.83 | 7.49
Diluted earnings per share attributable to Greif, Inc. common shareholders: (in dollars per share) | $ 2.26 | 2.58 | $ 5.83 | 7.49
Class B Common Stock | Lee Container Acquisition |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Basic earnings per share attributable to Greif, Inc. common shareholders: (in dollars per share) |  | 2.24 |  | 7.72
Diluted earnings per share attributable to Greif, Inc. common shareholders: (in dollars per share) |  | $ 2.24 |  | $ 7.72

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