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Cash and Investments
9 Months Ended
May 28, 2020
Investments [Abstract]  
Cash and Investments
Cash and Investments
Substantially all of our marketable debt and equity investments were classified as available-for-sale as of the dates noted below. Cash and equivalents and the fair values of our available-for-sale investments, which approximated amortized costs, were as follows:
May 28, 2020August 29, 2019
As ofCash and EquivalentsShort-term Investments
Long-term Marketable Investments(1)
Total Fair ValueCash and EquivalentsShort-term Investments
Long-term Marketable Investments(1)
Total Fair Value
Cash$2,506  $—  $—  $2,506  $2,388  $—  $—  $2,388  
Level 1(2)
Money market funds
4,346  —  —  4,346  3,418  —  —  3,418  
Level 2(3)
Certificates of deposits
1,405    1,412  1,292  13   1,306  
Corporate bonds
—  238  242  480  —  550  689  1,239  
Government securities
 63  235  303  36  149  232  417  
Asset-backed securities
—  25  96  121  —  67  242  309  
Commercial paper
 62  —  67  18  24  —  42  
8,267  $391  $577  $9,235  7,152  $803  $1,164  $9,119  
Restricted cash(4)
53  127  
Cash, cash equivalents, and restricted cash
$8,320  $7,279  
(1)The maturities of long-term marketable investments range from one to four years.
(2)The fair value of Level 1 securities is measured based on quoted prices in active markets for identical assets.
(3)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 May 28, 2020 or August 29, 2019.
(4)Restricted cash is included in other noncurrent assets and primarily relates to certain government incentives received prior to being earned. The restrictions lapse upon achieving certain performance conditions. Restricted cash as of August 29, 2019 also included amounts related to the corporate reorganization proceedings of MMJ.

Gross realized gains and losses from sales of available-for-sale securities were not significant for any period presented. As of May 28, 2020, there were no available-for-sale securities that had been in a loss position for longer than 12 months.