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Fair Value Measurements - Fair and Carrying Value of Debt (Details) - USD ($)
$ in Millions
Mar. 04, 2021
Sep. 03, 2020
Fair Value    
Debt Instrument, Fair Value Disclosure [Abstract]    
Notes (level 2) $ 6,565 $ 6,710
Convertible notes (level 2) 1,125 634
Carrying Value    
Debt Instrument, Fair Value Disclosure [Abstract]    
Notes (level 2) 5,966 6,026
Convertible notes (level 2) $ 133 $ 131