Earnings Per Share (Tables)

6 Months Ended

Oct. 31, 2021

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table presents information concerning basic and diluted earnings per share:

	Three Months Ended				Six Months Ended
	October 31,				October 31,
(Dollars in millions, except per share amounts)	2020		2021		2020		2021
Net income available to common stockholders	$	240	$	236	$	564	$	428
Share data (in thousands):
Basic average common shares outstanding	478,506		478,857		478,413		478,822
Dilutive effect of stock-based awards	2,242		1,661		2,172		1,793
Diluted average common shares outstanding	480,748		480,518		480,585		480,615
Basic earnings per share	$	0.50	$	0.49	$	1.18	$	0.89
Diluted earnings per share	$	0.50	$	0.49	$	1.17	$	0.89