v3.25.0.1
Cash Equivalents and Marketable Securities (Tables)
 12 Months Ended
Jan. 26, 2025
Investments, Debt and Equity Securities [Abstract]  
Schedule of Cash Equivalents and Marketable Securities
The following is a summary of cash equivalents and marketable securities:
 Jan 26, 2025
Amortized
Cost		Unrealized
Gain		Unrealized
Loss		Estimated
Fair Value		Reported as
 Cash EquivalentsMarketable Securities
 (In millions)
Corporate debt securities$18,504 $51 $(29)$18,526 $2,071 $16,455 
Debt securities issued by the U.S. Treasury16,749 42 (22)16,769 1,801 14,968 
Money market funds3,760 — — 3,760 3,760 — 
Debt securities issued by U.S. government agencies2,775 7 (5)2,777 — 2,777 
Foreign government bonds177 — — 177 137 40 
Certificates of deposit97 — — 97 97 — 
Total debt securities with fair value adjustments recorded in other comprehensive income42,062 100 (56)42,106 7,866 34,240 
Publicly-held equity securities (1)381 — 381 
Total$42,062 $100 $(56)$42,487 $7,866 $34,621 
(1)    Fair value adjustments on publicly-held equity securities are recorded in net income. Beginning in the second quarter of fiscal year 2025, publicly-held equity securities from investments in non-affiliated entities included in other assets (long term) were classified in marketable securities on our Consolidated Balance Sheets.
 Jan 28, 2024
Amortized
Cost		Unrealized
Gain		Unrealized
Loss		Estimated
Fair Value		Reported as
 Cash EquivalentsMarketable Securities
 (In millions)
Corporate debt securities$10,126 $31 $(5)$10,152 $2,231 $7,921 
Debt securities issued by the U.S. Treasury9,517 17 (10)9,524 1,315 8,209 
Money market funds3,031 — — 3,031 3,031 — 
Debt securities issued by U.S. government agencies2,326 8 (1)2,333 89 2,244 
Certificates of deposit510 — — 510 294 216 
Foreign government bonds174 — — 174 60 114 
Total debt securities with fair value changes recorded in other comprehensive income$25,684 $56 $(16)$25,724 $7,020 $18,704 
The amortized cost and estimated fair value of debt securities included in cash equivalents and marketable securities are shown below by contractual maturity.
 Jan 26, 2025Jan 28, 2024
 Amortized
Cost		Estimated
Fair Value		Amortized
Cost		Estimated
Fair Value
 (In millions)
Less than one year$18,426 $18,450 $16,336 $16,329 
Due in 1 - 5 years23,636 23,656 9,348 9,395 
Total$42,062 $42,106 $25,684 $25,724 
Schedule of Marketable Securities in a Continuous Unrealized Loss Position
The following tables provide the breakdown of unrealized losses, aggregated by investment category and length of time that individual debt securities have been in a continuous loss position:
Jan 26, 2025
 Less than 12 Months12 Months or GreaterTotal
 Estimated Fair ValueGross Unrealized LossEstimated Fair ValueGross Unrealized LossEstimated Fair ValueGross Unrealized Loss
 (In millions)
Debt securities issued by the U.S. Treasury$6,315 $(22)$177 $— $6,492 $(22)
Corporate debt securities5,291 (29)15 — 5,306 (29)
Debt securities issued by U.S. government agencies816 (5)21 — 837 (5)
Total$12,422 $(56)$213 $— $12,635 $(56)
Jan 28, 2024
 Less than 12 Months12 Months or GreaterTotal
 Estimated Fair ValueGross Unrealized LossEstimated Fair ValueGross Unrealized LossEstimated Fair ValueGross Unrealized Loss
 (In millions)
Debt securities issued by the U.S. Treasury$3,343 $(5)$1,078 $(5)$4,421 $(10)
Corporate debt securities1,306 (3)618 (2)1,924 (5)
Debt securities issued by U.S. government agencies670 (1)— — 670 (1)
Total$5,319 $(9)$1,696 $(7)$7,015 $(16)