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Cash and Investments (Details) - USD ($) | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Nov. 30, 2017 | Aug. 31, 2017 | Dec. 01, 2016 | Sep. 01, 2016
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Cash and equivalents |  | $ 6,008,000,000 | $ 5,109,000,000 |  |
Short-term investments |  | 166,000,000 | 319,000,000 |  |
Long-term marketable investments | [1] | 314,000,000 | 617,000,000 |  |
Total fair value |  | 6,488,000,000 | 6,045,000,000 |  |
Restricted cash | [2] | 122,000,000 | 107,000,000 |  |
Cash, cash equivalents, and restricted cash |  | 6,130,000,000 | 5,216,000,000 | $ 4,211,000,000 | $ 4,263,000,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  |  |  |  |
Available-for-sale securities in an unrealized loss position for longer than twelve months |  | $ 0 |  |  |
Minimum |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Long-term marketable investments, general maturities (in years) |  | 1 year |  |  |
Maximum |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Long-term marketable investments, general maturities (in years) |  | 4 years |  |  |
Cash |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Cash and equivalents |  | $ 1,850,000,000 | 2,237,000,000 |  |
Short-term investments |  | 0 | 0 |  |
Long-term marketable investments |  | 0 | 0 |  |
Total fair value |  | 1,850,000,000 | 2,237,000,000 |  |
Money market funds | Level 1 |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Cash and equivalents | [3] | 3,971,000,000 | 2,332,000,000 |  |
Short-term investments | [3] | 0 | 0 |  |
Long-term marketable investments | [1],[3] | 0 | 0 |  |
Total fair value | [3] | 3,971,000,000 | 2,332,000,000 |  |
Corporate bonds | Level 2 |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Cash and equivalents | [4] | 3,000,000 | 0 |  |
Short-term investments | [4] | 96,000,000 | 193,000,000 |  |
Long-term marketable investments | [1],[4] | 156,000,000 | 315,000,000 |  |
Total fair value | [4] | 255,000,000 | 508,000,000 |  |
Certificates of deposit | Level 2 |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Cash and equivalents | [4] | 169,000,000 | 483,000,000 |  |
Short-term investments | [4] | 7,000,000 | 24,000,000 |  |
Long-term marketable investments | [1],[4] | 3,000,000 | 3,000,000 |  |
Total fair value | [4] | 179,000,000 | 510,000,000 |  |
Government securities | Level 2 |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Cash and equivalents | [4] | 5,000,000 | 1,000,000 |  |
Short-term investments | [4] | 45,000,000 | 90,000,000 |  |
Long-term marketable investments | [1],[4] | 65,000,000 | 126,000,000 |  |
Total fair value | [4] | 115,000,000 | 217,000,000 |  |
Asset-backed securities | Level 2 |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Cash and equivalents | [4] | 0 | 0 |  |
Short-term investments | [4] | 13,000,000 | 2,000,000 |  |
Long-term marketable investments | [1],[4] | 90,000,000 | 173,000,000 |  |
Total fair value | [4] | 103,000,000 | 175,000,000 |  |
Commercial paper | Level 2 |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |
Cash and equivalents | [4] | 10,000,000 | 56,000,000 |  |
Short-term investments | [4] | 5,000,000 | 10,000,000 |  |
Long-term marketable investments | [1],[4] | 0 | 0 |  |
Total fair value | [4] | $ 15,000,000 | $ 66,000,000 |  |
[1] | The maturities of long-term marketable securities range from one to four years.
[2] | Restricted cash is included in other noncurrent assets and primarily represents balances related to the MMJ Creditor Payments and interest reserve balances related to the 2021 MSTW Term Loan.
[3] | The fair value of Level 1 securities is measured based on quoted prices in active markets for identical assets.
[4] | The fair value of Level 2 securities is measured using information obtained from pricing services, which obtain quoted market prices for similar instruments, non-binding market consensus prices that are corroborated by observable market data, or various other methodologies, to determine the appropriate value at the measurement date. We perform supplemental analyses to validate information obtained from these pricing services. No adjustments were made to the fair values indicated by such pricing information as of November 30, 2017 or August 31, 2017.

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- Definition Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26626-111562 + Details
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