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Cash and Investments (Tables)
3 Months Ended
Nov. 30, 2017
Investments [Abstract]  
Cash and equivalents and the fair values of available-for-sale investments
Cash and equivalents and the fair values of our available-for-sale investments, which approximated amortized costs, were as follows:
As of
 
November 30, 2017
 
August 31, 2017
 
 
Cash and Equivalents
 
Short-term Investments
 
Long-term Marketable Investments(1)
 
Total Fair Value
 
Cash and Equivalents
 
Short-term Investments
 
Long-term Marketable Investments(1)
 
Total Fair Value
Cash
 
$
1,850

 
$

 
$

 
$
1,850

 
$
2,237

 
$

 
$

 
$
2,237

Level 1(2)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Money market funds
 
3,971

 

 

 
3,971

 
2,332

 

 

 
2,332

Level 2(3)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Corporate bonds
 
3

 
96

 
156

 
255

 

 
193

 
315

 
508

Certificates of deposit
 
169

 
7

 
3

 
179

 
483

 
24

 
3

 
510

Government securities
 
5

 
45

 
65

 
115

 
1

 
90

 
126

 
217

Asset-backed securities
 

 
13

 
90

 
103

 

 
2

 
173

 
175

Commercial paper
 
10

 
5

 

 
15

 
56

 
10

 

 
66

 
 
6,008

 
$
166

 
$
314

 
$
6,488

 
5,109

 
$
319

 
$
617

 
$
6,045

Restricted cash(4)
 
122

 
 
 
 
 
 
 
107

 
 
 
 
 
 
Cash, cash equivalents, and restricted cash
 
$
6,130

 
 
 
 
 
 
 
$
5,216

 
 
 
 
 
 
(1) 
The maturities of long-term marketable securities 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 November 30, 2017 or August 31, 2017.
(4) 
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.