Annual report pursuant to Section 13 and 15(d)

Composition of Certain Financial Statement Items Other Comprehensive Income (Details)

v3.10.0.1
Composition of Certain Financial Statement Items Other Comprehensive Income (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2018
Sep. 24, 2017
Sep. 25, 2016
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance $ 384    
Accumulated other comprehensive income (loss), net of tax, ending balance 265 $ 384  
Investment and other income, net 539 900 $ 635
Foreign Currency Translation Adjustment [Member]      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance 147    
Other comprehensive (loss) income before reclassifications (136)    
Reclassifications from accumulated other comprehensive income 0    
Other comprehensive (loss) income (136)    
Accumulated other comprehensive income (loss), net of tax, ending balance 11 147  
Noncredit Other-than-Temporary Impairment Losses and Subsequent Changes in Fair Value for Certain Available-for-Sale Debt Securities [Member]      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance 23    
Other comprehensive (loss) income before reclassifications 0    
Reclassifications from accumulated other comprehensive income 0    
Other comprehensive (loss) income 0    
Accumulated other comprehensive income (loss), net of tax, ending balance 23 23  
Net Unrealized Gain (Loss) on Other Available-for-Sale Securities [Member]      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance 218    
Other comprehensive (loss) income before reclassifications 29    
Reclassifications from accumulated other comprehensive income (4)    
Other comprehensive (loss) income 25    
Accumulated other comprehensive income (loss), net of tax, ending balance 243 218  
Net Unrealized Gain (Loss) on Derivative Instruments [Member]      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance (8)    
Other comprehensive (loss) income before reclassifications (17)    
Reclassifications from accumulated other comprehensive income 12    
Other comprehensive (loss) income (5)    
Accumulated other comprehensive income (loss), net of tax, ending balance (13) (8)  
Other Gains [Member]      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance 4    
Other comprehensive (loss) income before reclassifications (3)    
Reclassifications from accumulated other comprehensive income 0    
Other comprehensive (loss) income (3)    
Accumulated other comprehensive income (loss), net of tax, ending balance 1 4  
AOCI Attributable to Parent [Member]      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance 384    
Other comprehensive (loss) income before reclassifications (127)    
Reclassifications from accumulated other comprehensive income 8    
Other comprehensive (loss) income (119)    
Accumulated other comprehensive income (loss), net of tax, ending balance 265 384  
Reclassification out of Accumulated Other Comprehensive Income [Member]      
Changes in the components of accumulated other comprehensive income [Line Items]      
Investment and other income, net   201 83
Reclassification from AOCI related to FX losses recorded in SG&A and other operating expenses     $ 21
Reclassification from AOCI related to derivatives recorded in revenues, cost of revenues, R&D expenses and SG&A expenses $ 12 $ 10