Derivative Instruments And Hedging Activities (Ineffective Portion Of The Cash Flow Hedges And Amount Excluded From Effectiveness Testing Of The Cash Flow Hedges) (Details) (USD $) In Millions	12 Months Ended
Sep. 30, 2011	Oct. 01, 2010	Oct. 02, 2009
Revenues [Member]
Derivative [Line Items]
Ineffective portion of cash flow hedges - Gain (Loss)	$ 0	$ 0	$ 0
Cost Of Revenues [Member]
Derivative [Line Items]
Amount excluded from assessment of effectiveness of cash flow hedges - Gain (Loss)	$ 0	$ 0	$ (0.1)

The net gain (loss) relating to components of the gain (loss) on the cash flow hedging instrument excluded from the assessment of cash flow hedge effectiveness. Recognized in earnings.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (d)(2)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624171-113959

Name:	us-gaap_GainLossFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectivenessNet
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration