Annual report pursuant to Section 13 and 15(d)

Composition of Certain Financial Statement Items Other intangible assets (Details)

v3.10.0.1
Composition of Certain Financial Statement Items Other intangible assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2018
Sep. 24, 2017
Sep. 25, 2016
Other intangible assets [Line Items]      
Gross Carrying Amount $ 6,483 $ 6,640  
Accumulated Amortization $ (3,528) $ (2,903)  
Weighted-average amortization period (years) 10 years 10 years  
Carrying value of acquired in-process research and development   $ 74  
Amortization of intangible assets $ 785 777 $ 804
Amortization expense, Fiscal 2019 733    
Amortization expense, Fiscal 2020 630    
Amortization expense, Fiscal 2021 517    
Amortization expense, Fiscal 2022 418    
Amortization expense, Fiscal 2023 285    
Amortization expense, thereafter 372    
Wireless spectrum [Member]      
Other intangible assets [Line Items]      
Gross Carrying Amount 1 1  
Accumulated Amortization $ 0 $ 0  
Weighted-average amortization period (years) 20 years 20 years  
Marketing-related [Member]      
Other intangible assets [Line Items]      
Gross Carrying Amount $ 51 $ 77  
Accumulated Amortization $ (39) $ (52)  
Weighted-average amortization period (years) 5 years 4 years  
Technology-based [Member]      
Other intangible assets [Line Items]      
Gross Carrying Amount $ 6,334 $ 6,413  
Accumulated Amortization $ (3,461) $ (2,818)  
Weighted-average amortization period (years) 10 years 10 years  
Customer-related [Member]      
Other intangible assets [Line Items]      
Gross Carrying Amount $ 97 $ 149  
Accumulated Amortization $ (28) $ (33)  
Weighted-average amortization period (years) 10 years 9 years