Common Shares (Details) - shares shares in Millions	Jan. 31, 2025	Apr. 30, 2024
Common Shares Information
Common shares authorized	300.0	300.0
Common shares outstanding	106.4	106.2
Treasury shares outstanding	44.1	44.3

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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