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Marketable Securities Other-than-temporary Impairments (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
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Dec. 29, 2013
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Dec. 30, 2012
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| Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] | ||
| Beginning balance of credit losses | $ 4 | $ 31 |
| Credit losses recognized on securities previously impaired | 2 | 0 |
| Reductions in credit losses related to securities sold | 0 | (12) |
| Ending balance of credit losses | $ 6 | $ 19 |
| X | ||||||||||
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- Definition
This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment of a debt security held for which other than temporary impairment was previously recognized. No definition available.
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| X | ||||||||||
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- Definition
The cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (a component of shareholders' equity). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This item represents reductions in the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security because of the sale of impaired securities during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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