Subsequent Event (Details) (USD $) In Millions, unless otherwise specified			6 Months Ended
Oct. 28, 2011	Apr. 29, 2011	Oct. 28, 2011 Physio Control Business [Member]
Subsequent Event [Line Items]
Subsequent Event, Date			Nov. 16, 2011
Subsequent Event, Description			On November 16, 2011, the Company and Bain Capital entered into a definitive agreement under which affiliates of Bain Capital will acquire Physio-Control and related entities for cash in a transaction valued at approximately $404 million excluding closing adjustments and potential earn-outs.
Transaction value			$ 404
Net Assets	$ 16,739	$ 15,968	$ 210

Describes the event or transaction that occurred between the balance sheet date and the date the financial statements are issued or available to be issued.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 855

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 165

-Paragraph 13

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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