v3.20.4
Fair Value of Financial Assets and Liabilities
 12 Months Ended
Jan. 31, 2021
Fair Value Disclosures [Abstract]  
Fair Value of Financial Assets and Liabilities Fair Value of Financial Assets and Liabilities
The fair values of our financial assets and liabilities are determined using quoted market prices of identical assets or quoted market prices of similar assets from active markets. We review fair value hierarchy classification on a quarterly basis.
Fair Value at
Pricing CategoryJanuary 31, 2021January 26, 2020
(In millions)
Assets
Cash equivalents and marketable securities:
Money market fundsLevel 1$313 $7,507 
Corporate debt securitiesLevel 2$4,444 $592 
Debt securities issued by United States government agenciesLevel 2$2,976 $1,096 
Debt securities issued by the United States TreasuryLevel 2$2,846 $1,358 
Certificates of depositLevel 2$705 $27 
Foreign government bondsLevel 2$67 $200 
Asset-backed securitiesLevel 2$— $1 
Other asset:
Investment in non-affiliated entities (1)Level 3$144 $77 
Liabilities
2.20% Notes Due 2021 (2)
Level 2$1,011 $1,006 
3.20% Notes Due 2026 (2)
Level 2$1,124 $1,065 
2.85% Notes Due 2030 (2)
Level 2$1,654 $— 
3.50% Notes Due 2040 (2)
Level 2$1,152 $— 
3.50% Notes Due 2050 (2)
Level 2$2,308 $— 
3.70% Notes Due 2060 (2)
Level 2$602 $— 
(1)Investment in private non-affiliated entities is recorded at fair value on a non-recurring basis only if an impairment or observable price adjustment occurs in the period with changes in fair value recorded through net income. The amount recorded as of January 31, 2021 has not been significant.
(2)    These liabilities are carried on our Consolidated Balance Sheets at their original issuance value, net of unamortized debt discount and issuance costs, and are not marked to fair value each period. Refer to Note 12 of these Notes to the Consolidated Financial Statements for additional information