Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

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+ Details

Acquisitions and Acquisition-Related Items, Contingent Consideration (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended		3 Months Ended		6 Months Ended			6 Months Ended
	Oct. 26, 2012	Oct. 28, 2011	Oct. 26, 2012 Level 3	Oct. 28, 2011 Level 3	Oct. 26, 2012 Recurring Level 3 Revenue-based Payments Minimum	Oct. 26, 2012 Recurring Level 3 Revenue-based Payments Maximum	Oct. 26, 2012 Recurring Level 3 Revenue-based Payments Discounted Cash Flow	Oct. 26, 2012 Recurring Level 3 Product Development-based Payments	Oct. 26, 2012 Recurring Level 3 Product Development-based Payments Discounted Cash Flow
Fair Value Inputs
Discount rate					13.00%	24.00%		5.90%
Probability of payment					25.00%	100.00%		100.00%
Projected fiscal year of payment					2013	2019		2013
Reconciliation of Beginning and Ending Balances of Contingent Milestone Payments Associated with Acquisitions
Beginning Balance	$ 231	$ 335	$ 215	$ 343			$ 208		$ 5
Purchase price contingent consideration	5	2	0	2
Contingent milestone payments	(26)	(66)	0	(66)
Change in fair value of contingent consideration	3	17	(2)	9
Ending Balance	$ 213	$ 288	$ 213	$ 288			$ 208		$ 5