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Earnings per share (Tables) | 3 Months Ended
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Jan. 31, 2025
Text Block [Abstract] |
Summary of Earnings Per Share |
$ millions, except number of shares and per share amounts, for the three months ended |  | 2025 Jan. 31 |  |  | 2024 Oct. 31 |  |  | 2024 Jan. 31 |
Basic earnings per share |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to equity shareholders |  | $ | 2,163 |  |  | $ | 1,874 |  |  | $ | 1,716 |
Less: Preferred share dividends and distributions on other equity instruments |  |  | 88 |  |  |  | 72 |  |  |  | 67 |
Net income attributable to common shareholders |  | $ | 2,075 |  |  | $ | 1,802 |  |  | $ | 1,649 |
Weighted-average common shares outstanding (thousands) |  |  | 942,039 |  |  |  | 944,283 |  |  |  | 931,775 |
Basic earnings per share |  | $ | 2.20 |  |  | $ | 1.91 |  |  | $ | 1.77 |
Diluted earnings per share |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to common shareholders |  | $ | 2,075 |  |  | $ | 1,802 |  |  | $ | 1,649 |
Weighted-average common shares outstanding (thousands) |  |  | 942,039 |  |  |  | 944,283 |  |  |  | 931,775 |
Add: Stock options potentially exercisable (1) (thousands) |  |  | 5,306 |  |  |  | 4,326 |  |  |  | 555 |
Weighted-average diluted common shares outstanding (thousands) |  |  | 947,345 |  |  |  | 948,609 |  |  |  | 932,330 |
Diluted earnings per share |  | $ | 2.19 |  |  | $ | 1.90 |  |  | $ | 1.77 |
(1) | Excludes average options outstanding of 1,615,008 (October 31, 2024: nil; January 31, 2024: 7,202,031) with a weighted-average exercise price of $94.35 (October 31, 2024: nil; January 31, 2024: $63.27) for the quarter ended January 31, 2025, as the options’ exercise prices were greater than the average market price of CIBC’s common shares.

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- Definition The disclosure of earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2024-01-01 -Paragraph 66 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2024-en-r&anchor=para_66&doctype=Standard -URIDate 2024-03-27 + Details
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