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Shareholders' Equity - Additional Information (Details) - USD ($)
shares in Millions
12 Months Ended
Sep. 28, 2019
Apr. 30, 2019
Apr. 29, 2019
Share Repurchase Program [Line Items]      
Maximum amount authorized for repurchase of common stock   $ 175,000,000,000 $ 100,000,000,000
Share repurchase program, amount utilized $ 96,100,000,000    
Number of shares repurchased (in shares) 345.2    
Amount of share repurchases $ 67,100,000,000    
February 2019 accelerated share repurchase arrangement      
Share Repurchase Program [Line Items]      
Number of shares repurchased (in shares) 62.0    
Amount of share repurchases, accelerated share repurchase arrangement $ 12,000,000,000.0