XML 41 R28.htm IDEA: XBRL DOCUMENT
v3.22.4

Cash Equivalents and Investments (Tables) | 12 Months Ended
--- | ---
Jan. 31, 2023
Investments, Debt and Equity Securities [Abstract] |
Schedule of Amortized Costs, Unrealized Gains and Losses and Estimated Fair Value of Cash Equivalents and Short-term Investments | The following tables present the amortized cost, unrealized gain (loss) and estimated fair value of cash equivalents and short-term investments:
| As of January 31, 2023
| Amortized Cost |  | Unrealized Gain |  | Unrealized Loss |  | Estimated Fair Value
| (dollars in millions)
Cash equivalents: |  |  |  |  |  |  |
Money market funds | $ | 133 |  |  | $ | — |  |  | $ | — |  |  | $ | 133 |
Total cash equivalents | 133 |  |  | — |  |  | — |  |  | 133 |
Short-term investments: |  |  |  |  |  |  |
U.S. treasury securities | 2,207 |  |  | — |  |  | (22) |  |  | 2,185 |
Corporate debt securities | 133 |  |  | — |  |  | (2) |  |  | 131 |
Total short-term investments | 2,340 |  |  | — |  |  | (24) |  |  | 2,316 |
Total | $ | 2,473 |  |  | $ | — |  |  | $ | (24) |  |  | $ | 2,449 |
| As of January 31, 2022
| Amortized Cost |  | Unrealized Gain |  | Unrealized Loss |  | Estimated Fair Value
| (dollars in millions)
Cash equivalents: |  |  |  |  |  |  |
Money market funds | $ | 152 |  |  | $ | — |  |  | $ | — |  |  | $ | 152 |
Total cash equivalents | 152 |  |  | — |  |  | — |  |  | 152 |
Short-term investments: |  |  |  |  |  |  |
U.S. treasury securities | 1,922 |  |  | — |  |  | (9) |  |  | 1,913 |
Corporate debt securities | 331 |  |  | — |  |  | (2) |  |  | 329 |
Total short-term investments | 2,253 |  |  | — |  |  | (11) |  |  | 2,242 |
Total | $ | 2,405 |  |  | $ | — |  |  | $ | (11) |  |  | $ | 2,394 |
Schedule of Contractual Maturities of Short-term Investments | The following table presents the contractual maturities of the Company's short-term investments:
| As of January 31, 2023 |  |
| Amortized Cost |  | Estimated Fair Value |  |  |  |
| (dollars in millions) |  |  |  |
Due within one year | $ | 2,097 |  |  | $ | 2,076 |  |  |  |  |
Due between one to five years | 243 |  |  | 240 |  |  |  |  |
Total | $ | 2,340 |  |  | $ | 2,316 |  |  |  |  |
Schedule of Unrealized Loss Position and Fair Value of Debt Securities | The following table presents the fair values and unrealized losses related to the Company's investments in available-for-sale debt securities classified by length of time that the securities have been in a continuous unrealized loss position as of January 31, 2023:
| Less Than 12 Months |  | More Than 12 Months |  | Total
| Estimated Fair Value |  | Unrealized Losses |  | Estimated Fair Value |  | Unrealized Losses |  | Estimated Fair Value |  | Unrealized Losses
| (dollars in millions)
U.S. treasury securities | $ | 1,204 |  |  | $ | (9) |  |  | $ | 846 |  |  | $ | (13) |  |  | $ | 2,050 |  |  | $ | (22) |
Corporate debt securities | 13 |  |  | — |  |  | 114 |  |  | (2) |  |  | 127 |  |  | (2) |
Total | $ | 1,217 |  |  | $ | (9) |  |  | $ | 960 |  |  | $ | (15) |  |  | $ | 2,177 |  |  | $ | (24) |

X
- Definition Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27290-111563 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration