Earnings Per Share (Tables)

9 Months Ended

Jan. 31, 2014

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)	2013		2014		2013		2014
Net income available to common stockholders	$	157	$	177	$	478	$	526
Share data (in thousands):
Basic average common shares outstanding	213,459		213,151		213,301		213,493
Dilutive effect of stock-based awards	1,592		1,641		1,612		1,623
Diluted average common shares outstanding	215,051		214,792		214,913		215,116
Basic earnings per share	$	0.74	$	0.83	$	2.24	$	2.46
Diluted earnings per share	$	0.73	$	0.82	$	2.22	$	2.45