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Fair Value Measurements (Details) - USD ($) $ in Millions | Nov. 30, 2017 | Aug. 31, 2017
--- | --- | ---
Fair value disclosure [Line Items] |  |
Carrying Value of Debt | $ 9,045 | $ 11,134
Fair Value | Level 2 | Notes and MMJ Creditor Payments |  |
Fair value disclosure [Line Items] |  |
Fair Value of Notes and MMJ Creditor Payments | 6,484 | 8,793
Fair Value | Level 2 | Convertible notes |  |
Fair value disclosure [Line Items] |  |
Fair Value of Convertible notes | 4,670 | 3,901
Carrying Value | Notes and MMJ Creditor Payments |  |
Fair value disclosure [Line Items] |  |
Carrying Value of Debt | 6,342 | 8,423
Carrying Value | Convertible notes |  |
Fair value disclosure [Line Items] |  |
Carrying Value of Debt | $ 1,590 | $ 1,521

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