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Investments (Tables)
 6 Months Ended
Jul. 31, 2025
Investments, Debt and Equity Securities [Abstract]  
Summary of Debt Securities
As of July 31, 2025, debt securities consisted of the following (in millions):
Amortized CostUnrealized GainsUnrealized LossesAggregate Fair Value
U.S. treasury securities$2,050 $6 $0 $2,056 
U.S. agency obligations537 1 0 538 
Corporate bonds3,943 25 (1)3,967 
Commercial paper215 0 0 215 
Asset-backed securities305 1 0 306 
Other debt securities
42 0 0 42 
Total debt securities$7,092 $33 $(1)$7,124 
Included in Cash and cash equivalents$202 $0 $0 $202 
Included in Marketable securities$6,890 $33 $(1)$6,922 
As of January 31, 2025, debt securities consisted of the following (in millions):
Amortized CostUnrealized GainsUnrealized LossesAggregate Fair Value
U.S. treasury securities$2,069 $4 $(1)$2,072 
U.S. agency obligations634 2 0 636 
Corporate bonds3,532 11 (3)3,540 
Commercial paper294 0 0 294 
Asset-backed securities104 0 0 104 
Other debt securities
5 0 0 5 
Total debt securities$6,638 $17 $(4)$6,651 
Included in Cash and cash equivalents$177 $0 $0 $177 
Included in Marketable securities$6,461 $17 $(4)$6,474 
Contractual Maturity of Debt Securities
The following table presents the fair values of debt securities as of July 31, 2025, by remaining contractual maturity (in millions). Actual maturities may differ from contractual maturities because borrowers may have certain prepayment conditions.
Due within 1 year$2,313 
Due 1 year through 5 years4,650 
Due 5 years through 10 years
91 
Due after 10 years
70 
Total debt securities$7,124 
Equity Investments
Equity investments consisted of the following (in millions):
Condensed Consolidated Balance Sheets LocationJuly 31, 2025January 31, 2025
Money market funds Cash and cash equivalents$802 $988 
Non-marketable equity investments measured using the measurement alternative Other assets251 244 
Total equity investments$1,053 $1,232 
Carrying Values of Non-marketable Equity Investments The carrying values for our non-marketable equity investments are summarized below (in millions):
July 31, 2025January 31, 2025
Total initial cost$223 $217 
Cumulative net unrealized gains (losses)28 27 
Carrying value$251 $244