Earnings Per Share (Tables)

9 Months Ended

Jan. 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				Nine Months Ended
	January 31,				January 31,
(Dollars in millions, except per share amounts)	2019		2020		2019		2020
Net income available to common stockholders	$	227	$	231	$	676	$	699
Share data (in thousands):
Basic average common shares outstanding	477,301		477,898		479,522		477,643
Dilutive effect of stock-based awards	2,798		2,859		3,143		2,793
Diluted average common shares outstanding	480,099		480,757		482,665		480,436
Basic earnings per share	$	0.47	$	0.48	$	1.41	$	1.46
Diluted earnings per share	$	0.47	$	0.48	$	1.40	$	1.45