Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after income tax refund received, of cash paid to federal (national) tax jurisdiction for tax on income.

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Amount, after income tax refund received, of cash paid to foreign tax jurisdiction for tax on income.

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Amount, after income tax refund received, of cash paid to state and local tax jurisdictions for tax on income.

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Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2A
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-Topic 740
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-Topic 740
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Income Taxes - Income Tax Paid (Refunded) (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2024
Income Tax Paid, by Individual Jurisdiction [Line Items]
U.S. - Federal	$ 233	$ (41)	$ 1
U.S.- State and local	73
Foreign
Total income taxes paid	332	425	246
Canada
Foreign
Foreign	30
U.S. - Federal
Foreign
Foreign		397	149
U.S. - State and local
Foreign
Foreign		63	89
Other foreign jurisdictions
Foreign
Foreign	$ (4)	$ 6	$ 7