Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities Other-than-temporary Impairments (Details)

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Marketable Securities Other-than-temporary Impairments (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 29, 2014
Jun. 30, 2013
Jun. 29, 2014
Jun. 30, 2013
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]        
Beginning balance of credit losses $ 8 $ 8 $ 4 $ 31
Reduction in credit losses related to securities the Company intends to sell 0 0 0 (6)
Credit losses recognized on securities not previously impaired 0 0 5 1
Additional credit losses recognized on securities previously impaired 0 0 0 1
Reductions in credit losses related to securities sold (3) (3) (4) (21)
Accretion of credit losses due to an increase in cash flows expected to be collected 0 0 0 (1)
Ending balance of credit losses $ 5 $ 5 $ 5 $ 5