Stock-Based Compensation (Tables)

6 Months Ended

Oct. 28, 2011

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

	Three months ended				Six months ended
	October 28,		October 29,		October 28,		October 29,
(in millions)	2011		2010		2011		2010
Stock options	$	21	$	28	$	36	$	50
Restricted stock awards/units		25		24		47		47
Employee stock purchase plan		3		3		7		7
Total stock-based compensation expense	$	49	$	55	$	90	$	104
Cost of products sold	$	4	$	6	$	7	$	12
Research and development expense		9		14		16		26
Selling, general, and administrative expense		36		35		67		66
Total stock-based compensation expense	$	49	$	55	$	90	$	104
Income tax benefits		(15)		(16)		(26)		(30)
Total stock-based compensation expense, net of tax	$	34	$	39	$	64	$	74