The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) estimated litigation liability extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9, 10, 11, 12

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349

Name:	us-gaap_GainLossRelatedToLitigationSettlement
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Certain Litigation Charges, Net (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended						3 Months Ended	12 Months Ended
	Apr. 27, 2012	Apr. 29, 2011	Apr. 30, 2010	Apr. 30, 2010 Abbott	Apr. 30, 2010 evYsio	Apr. 30, 2010 Amendment to Existing Agreement with evYsio	Apr. 27, 2012 Federal Securities Class Action Initiated by Minneapolis Firefighters' Relief Association	Apr. 29, 2011 Sprint Fidelis Litigation Matters	Apr. 30, 2010 Abbott and Gore Litigation Matters	Apr. 30, 2010 Abbott Litigation Matters	Apr. 30, 2010 Gore Litigation Matters
Loss Contingencies
Certain litigation charges, net	$ (90)	$ (245)	$ (374)					$ (245)	$ (374)	$ (444)	$ 70
Settlement consideration				400	42	2	85	221
Litigation fees							$ 5