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Debt Short-term Borrowings (Details) - Commercial Paper - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Oct. 31, 2025	Apr. 30, 2025
Short-Term Debt [Line Items]
Commercial paper (par amount)	$ 228	$ 313
Average interest rate	4.18%	4.64%
Average remaining days to maturity	9 days	12 days

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- Definition

Commercial Paper Borrowings, Average Remaining Maturity

+ References

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- Definition

Short-Term Debt Instrument, Face Amount

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- Definition

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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- Definition

Weighted average interest rate of short-term debt outstanding calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-7

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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