Derivative Financial Instruments and Hedging Activities (Amounts Recognized in AOCI and Earnings) (Details) - USD ($) $ in Millions	3 Months Ended
Jul. 31, 2026	Jul. 31, 2025
Total amounts presented in the accompanying consolidated statements of operations for line items affected by the net gains (losses) shown above: [Abstract]
Sales	$ 1,181	$ 1,191
Other income (expense), net	2	17
Foreign Currency Denominated Debt [Member]
Foreign currency-denominated debt designated as net investment hedge: [Abstract]
Net gain (loss) recognized in AOCI	4	5
Currency derivatives [Member]
Currency derivatives designated as cash flow hedges: [Abstract]
Net gain (loss) recognized in AOCI	4	0
Foreign currency-denominated debt designated as net investment hedge: [Abstract]
Net gain (loss) recognized in AOCI	(2)	0
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Currency derivatives not designated as hedging instruments: [Abstract]
Net gain (loss) recognized in earnings	(4)	2
Currency derivatives [Member] \| Income Statement Location [Axis]: us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
Currency derivatives designated as cash flow hedges: [Abstract]
Net gain (loss) reclassified from AOCI into earnings	(4)	(3)
Currency derivatives not designated as hedging instruments: [Abstract]
Net gain (loss) recognized in earnings	$ 1	$ 0

Currency derivatives designated as cash flow hedges: [Abstract]

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Currency derivatives not designated as hedging instruments: [Abstract]

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Total amounts presented in the accompanying condensed consolidated statements of operations for line items affected by the net gains (losses) shown above: [Abstract]

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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