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Debt - Debt Activity (Details) - USD ($) $ in Millions |  | 2 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Oct. 31, 2019 | Oct. 30, 2019 | Feb. 27, 2020 | Nov. 28, 2019 | Feb. 28, 2019 | Nov. 29, 2018 | Feb. 27, 2020 | Feb. 28, 2019
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |
Increase (Decrease) Principal |  |  |  |  |  |  | $ (8) |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  | (138) |
Increase (Decrease) in Cash |  |  |  |  |  |  | (105) |
Decrease in Equity |  |  | $ (3) | $ (6) | $ (336) | $ (36) | (9) |
Gain (Loss) on debt prepayments, repurchases, and conversions |  |  | $ 0 |  | $ (83) |  | 42 | $ (69)
Corporate Bonds | 2025 Notes |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |
Decrease in Principal |  |  |  |  |  |  | (519) |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  | (516) |
(Decrease) in Cash - Prepayments and Conversions |  |  |  |  |  |  | (534) |
Gain (Loss) on debt prepayments, repurchases, and conversions |  |  |  |  |  |  | $ (18) |
Convertible Debt |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |
Derivative, Term of Contract (in consecutive trading days) |  |  |  |  |  |  | 20 days |
Convertible Debt | IMFT Member Debt |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |
Decrease in Principal | $ (577) | $ (116) |  |  |  |  | $ (693) |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  | (693) |
(Decrease) in Cash - Prepayments and Conversions | $ (505) | $ (116) |  |  |  |  | (621) |
Gain (Loss) on debt prepayments, repurchases, and conversions |  |  |  | $ 72 |  |  | 72 |
Convertible Debt | 2033F Notes |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |
Decrease in Principal |  |  |  |  |  |  | (46) |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  | (180) |
(Decrease) in Cash - Prepayments and Conversions |  |  |  |  |  |  | (198) |
Decrease in Equity |  |  |  |  |  |  | (6) |
Gain (Loss) on debt prepayments, repurchases, and conversions |  |  |  |  |  |  | (12) |
Convertible Debt | 2033F Notes | Conversions not settled |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |
Decrease in Principal |  |  |  |  |  |  | 0 |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  | 3 |
(Decrease) in Cash - Prepayments and Conversions |  |  |  |  |  |  | 0 |
Decrease in Equity |  |  |  |  |  |  | (3) |
Gain (Loss) on debt prepayments, repurchases, and conversions |  |  |  |  |  |  | 0 |
Other Notes Payable | 2024 Term Loan A |  |  |  |  |  |  |  |
Extinguishment of Debt [Line Items] |  |  |  |  |  |  |  |
Increase (Decrease) Principal |  |  |  |  |  |  | 1,250 |
Increase (Decrease) in Carrying Value |  |  |  |  |  |  | 1,248 |
Increase in Cash - Issuances |  |  |  |  |  |  | $ 1,248 |

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