Annual report pursuant to Section 13 and 15(d)

Composition of Certain Financial Statement Items Equity Method and Non-marketable Equity Investments (Details)

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Composition of Certain Financial Statement Items Equity Method and Non-marketable Equity Investments (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 27, 2020
Sep. 29, 2019
Sep. 30, 2018
Equity Method and Non-marketable Equity Investments [Line Items]      
Equity method investments $ 161 $ 343  
Non-marketable equity investments 821 787  
Carrying value of equity method and non-marketable equity investments 982 1,130  
Other Restructuring [Member]      
Equity Method and Non-marketable Equity Investments [Line Items]      
Non-cash consideration received for divestiture   53  
Equity Method Investee [Member]      
Equity Method and Non-marketable Equity Investments [Line Items]      
Revenues from transactions with certain equity method investees $ 36 152 $ 100
Non-cash consideration received from equity method investee   $ 98