Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 224	$ 258	$ 394	$ 453
Other comprehensive income (loss), net of tax:
Currency translation adjustments	9	(26)	34	(68)
Cash flow hedge adjustments	2	(1)	4	(3)
Postretirement benefits adjustments	3	0	12	1
Net other comprehensive income (loss)	14	(27)	50	(70)
Comprehensive income	$ 238	$ 231	$ 444	$ 383