Earnings Per Share (Tables)

9 Months Ended

Jan. 31, 2015

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)	2014		2015		2014		2015
Net income available to common stockholders	$	177	$	186	$	526	$	543
Share data (in thousands):
Basic average common shares outstanding	213,151		211,126		213,493		212,189
Dilutive effect of stock-based awards	1,641		1,480		1,623		1,512
Diluted average common shares outstanding	214,792		212,606		215,116		213,701
Basic earnings per share	$	0.83	$	0.88	$	2.46	$	2.56
Diluted earnings per share	$	0.82	$	0.87	$	2.45	$	2.54