Stock-Based Compensation (Tables)

3 Months Ended

Jul. 27, 2012

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

Schedule of Components and Classification of Stock-based Compensation Expense

	Three months ended
	July 27,		July 29,
(in millions)	2012		2011
Stock options	$	11	$	15
Restricted stock awards		21		22
Employee stock purchase plan		4		4
Total stock-based compensation expense	$	36	$	41
Cost of products sold	$	3	$	3
Research and development expense		7		7
Selling, general, and administrative expense		26		31
Total stock-based compensation expense	$	36	$	41
Income tax benefits		(10)		(11)
Total stock-based compensation expense, net of tax	$	26	$	30