Quarterly report pursuant to Section 13 or 15(d)

Composition of Certain Financial Statement Items Investment Income, Net (Details)

v3.6.0.2
Composition of Certain Financial Statement Items Investment Income, Net (Details) - USD ($)
$ in Millions
3 Months Ended
Dec. 25, 2016
Dec. 27, 2015
Investment Income, Net [Abstract]    
Interest and dividend income $ 167 $ 136
Net realized gains on marketable securities 139 43
Net realized gains on other investments 8 6
Impairment losses on marketable securities (122) (49)
Impairment losses on other investments (21) (14)
Equity in net earnings (losses) of investees 3 (20)
Net gains (losses) on derivative investments 8 (3)
Investment income, net 182 99
Ending balance of the credit loss portion of other-than-temporary impairments   $ 22
Noncredit portion of net impairment losses $ 0