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Equity Plans - Stock-based compensation expense (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 27, 2020 | Feb. 28, 2019 | Feb. 27, 2020 | Feb. 28, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation expense | $ 85 | $ 57 | $ 157 | $ 118
Share-based Payment Arrangement, Additional Disclosure [Abstract] |  |  |  |
Tax benefit from share-based compensation expense | 53 | 30 | 79 | 53
Total unrecognized compensation costs related to non-vested awards expected to be recognized | 656 |  | $ 656 |
Weighted average period that unrecognized compensation costs are expected to be recognized (in years) |  |  | 1 year 4 months 24 days |
Restricted stock awards |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation expense | 70 | 42 | $ 127 | 83
Employee stock purchase plan (ESPP) |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation expense | 11 | 8 | 19 | 16
Stock options |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation expense | 4 | 7 | 11 | 19
Cost of goods sold |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation expense | 37 | 23 | 68 | 49
Selling, general, and administrative |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation expense | 26 | 18 | 48 | 37
Research and development |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation expense | $ 22 | $ 16 | $ 41 | $ 32

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