Fair Value Measurements Fair Value Measurement (Narrative) (Details) (USD $) In Millions, unless otherwise specified			6 Months Ended
Mar. 29, 2014	Mar. 30, 2013	Mar. 29, 2014 Common Stock and Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities			$ 6
Assets, Fair Value Disclosure, Nonrecurring	0	0
Liabilities, Fair Value Disclosure, Nonrecurring	$ 0	$ 0

The amount by which the fair value of an investment in debt and equity securities categorized as Available-for-sale is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration