v3.24.2.u1
Cash Equivalents and Marketable Securities (Tables)
 6 Months Ended
Jul. 28, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Cash Equivalents and Marketable Securities
The following is a summary of cash equivalents and marketable securities:
 Jul 28, 2024
Amortized
Cost		Unrealized
Gain		Unrealized
Loss		Estimated
Fair Value		Reported as
 Cash EquivalentsMarketable Securities
 (In millions)
Debt securities issued by the U.S. Treasury$14,051 $42 $(10)$14,083 $2,132 $11,951 
Corporate debt securities11,994 37 (7)12,024 682 11,342 
Money market funds5,252 — — 5,252 5,252 — 
Debt securities issued by U.S. government agencies2,461 7 (2)2,466 50 2,416 
Certificates of deposit141 — — 141 32 109 
Total marketable securities with fair value adjustments recorded in other comprehensive income$33,899 $86 $(19)$33,966 $8,148 $25,818 
Publicly-held equity securities (1)$419 $— $419 
Total$33,899 $86 $(19)$34,385 $8,148 $26,237 
(1)    Fair value adjustments on publicly-held equity securities are recorded in net income. In the second quarter of fiscal year 2025, publicly-held equity securities from investments in non-affiliated entities were classified in marketable securities on our Condensed 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 marketable 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.
Jul 28, 2024Jan 28, 2024
Amortized CostEstimated Fair ValueAmortized CostEstimated Fair Value
(In millions)
Less than one year$15,535 $15,532 $16,336 $16,329 
Due in 1 - 5 years18,364 18,434 9,348 9,395 
Total$33,899 $33,966 $25,684 $25,724 
Schedule of Investments 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:
Jul 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 U.S. government agencies$4,031 $(8)$857 $(2)$4,888 $(10)
Corporate debt securities3,170 (5)396 (2)3,566 (7)
Debt securities issued by the U.S. Treasury1,210 (1)117 (1)1,327 (2)
Total$8,411 $(14)$1,370 $(5)$9,781 $(19)
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)