Earnings Per Share (Tables)

9 Months Ended

Jan. 31, 2019

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)	2018		2019		2018		2019
Net income available to common stockholders	$	190	$	227	$	607	$	676
Share data (in thousands):
Basic average common shares outstanding	480,361		477,301		480,193		479,522
Dilutive effect of stock-based awards	3,883		2,798		3,318		3,143
Diluted average common shares outstanding	484,244		480,099		483,511		482,665
Basic earnings per share	$	0.39	$	0.47	$	1.26	$	1.41
Diluted earnings per share	$	0.39	$	0.47	$	1.25	$	1.40