Stock-Based Compensation PBRSUs Fair Value Assumptions (Details) - PBRSU [Member]	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate (percent)	4.60%	2.80%	0.30%
Expected volatility (percent)	22.20%	29.80%	29.10%
Expected dividend yield (percent)	1.20%	1.00%	1.00%
Remaining performance period (years) as of grant date	2 years 9 months 18 days	2 years 9 months 18 days	2 years 9 months 18 days