Income Taxes (Earnings of Foreign Subsidiaries) (Details) - USD ($) $ in Millions	Apr. 30, 2023	Apr. 30, 2022
Income Tax Disclosure [Abstract]
Undistributed Earnings of Foreign Subsidiaries	$ 1,617	$ 1,446

Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

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