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Marketable Securities (Notes)
9 Months Ended
Jun. 28, 2020
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities
Note 9. Marketable Securities
We classify marketable securities as current or noncurrent based on the nature of the securities and their availability for use in current operations. Our marketable securities were comprised as follows (in millions):
CurrentNoncurrent (1)
June 28,
2020
September 29,
2019
June 28,
2020
September 29,
2019
Available-for-sale debt securities:    
U.S. Treasury securities and government-related securities$ $—  $—  $—  
Corporate bonds and notes4,005   —  —  
Mortgage- and asset-backed and auction rate securities84  —  34  35  
Total available-for-sale debt securities4,095   34  35  
Equity securities
355  417  —   
 Time deposit (2)30  —  —  —  
Total marketable securities$4,480  $421  $34  $36  
(1) Noncurrent marketable securities were included in other assets.
(2) At June 28, 2020, marketable securities also included a time deposit with an original maturity of greater than 90 days.
The contractual maturities of available-for-sale debt securities were as follows (in millions):
June 28,
2020
Years to Maturity
Less than one year$2,730  
One to five years1,281  
No single maturity date118  
Total$4,129  
Debt securities with no single maturity date included mortgage- and asset-backed securities and auction rate securities.