Earnings Per Share (Tables)

6 Months Ended

Oct. 31, 2020

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)	2019		2020		2019		2020
Net income available to common stockholders	$	282	$	240	$	468	$	564
Share data (in thousands):
Basic average common shares outstanding	477,680		478,506		477,522		478,413
Dilutive effect of stock-based awards	2,801		2,242		2,760		2,172
Diluted average common shares outstanding	480,481		480,748		480,282		480,585
Basic earnings per share	$	0.59	$	0.50	$	0.98	$	1.18
Diluted earnings per share	$	0.59	$	0.50	$	0.97	$	1.17