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Employee Incentive Plans (Tables) | 12 Months Ended
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Jan. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock-based Compensation Expense by Award Type | Stock-based compensation expense by award type was as follows:
|  |  | Year Ended January 31,
|  |  |  |  | 2023 |  | 2022 |  | 2021
|  |  |  |  | (dollars in millions)
Stock options |  |  |  |  | $ | 82 |  |  | $ | 132 |  |  | $ | 21 |
RSUs |  |  |  |  | 464 |  |  | 335 |  |  | 164 |
ESPP |  |  |  |  | 19 |  |  | 15 |  |  | 10 |
Restricted stock awards |  |  |  |  | 112 |  |  | 84 |  |  | — |
Total |  |  |  |  | $ | 677 |  |  | $ | 566 |  |  | $ | 195 |
Schedule of Stock-based Compensation Expense by Statement of Operations Location | Stock-based compensation expense was recorded in the following cost and expense categories in the consolidated statements of operations:
| Year Ended January 31,
| 2023 |  | 2022 |  | 2021
| (dollars in millions)
Cost of revenue: |  |  |  |  |
Subscription | $ | 69 |  |  | $ | 49 |  |  | $ | 21 |
Professional services and other | 14 |  |  | 12 |  |  | 9 |
Research and development | 275 |  |  | 193 |  |  | 63 |
Sales and marketing | 159 |  |  | 136 |  |  | 53 |
General and administrative | 160 |  |  | 176 |  |  | 49 |
Total | $ | 677 |  |  | $ | 566 |  |  | $ | 195 |
Schedule of Stock Option Activity | A summary of stock option activity and related information was as follows:
| Number of Options (in thousands) |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value (in millions)
Outstanding as of January 31, 2022 | 7,984 |  |  | $ | 39.59 |  |  | 5.2 |  | $ | 1,314 |
Exercised | (1,416) |  |  | 11.92 |  |  |  |  |
Expired | (26) |  |  | 189.80 |  |  |  |  |
Forfeited | (189) |  |  | 80.67 |  |  |  |  |
Outstanding as of January 31, 2023 | 6,353 |  |  | $ | 43.92 |  |  | 4.3 |  | $ | 331 |
As of January 31, 2023 |  |  |  |  |  |  |
Vested and expected to vest | 6,353 |  |  | $ | 43.92 |  |  | 4.3 |  | $ | 331 |
Vested and exercisable | 5,729 |  |  | $ | 29.75 |  |  | 3.9 |  | $ | 323 |
Schedule of Black-Scholes Option Pricing Model Estimated Fair Value Assumptions | The Company used the Black-Scholes option pricing model to estimate the fair value of stock options granted with the following assumptions:
| Year Ended January 31, |  |
| 2023 |  | 2022 |  | 2021 |  |  |  |
Expected volatility | — | % |  | 46 | % |  | 45 | % |  |  |  |
Expected term (in years) | 0.0 |  | 6.3 |  | 6.3 |  |  |  |
Risk-free interest rate | — | % |  | 1.03% |  | 0.37% - 0.44% |  |  |  |
Expected dividend yield | — |  |  | — |  |  | — |  |  |  |  |
Schedule of Nonvested Restricted Stock Units Activity | A summary of RSU activity (inclusive of market-based RSUs) and related information was as follows:
| Number of RSUs (in thousands) |  | Weighted- Average Grant Date Fair Value Per Share
Outstanding as of January 31, 2022 | 6,226 |  |  | $ | 207.26 |
Granted | 7,194 |  |  | 111.84 |
Vested | (2,556) |  |  | 180.81 |
Forfeited | (1,489) |  |  | 191.40 |
Outstanding as of January 31, 2023 | 9,375 |  |  | $ | 143.77 |
Schedule of ESPP Black-Scholes Option Pricing Model Estimated Fair Value Assumptions | The Company estimated the fair value of ESPP purchase rights using a Black-Scholes option pricing model with the following assumptions:
|  | Year Ended January 31,
|  | 2023 |  | 2022 |  | 2021
Expected volatility |  | 63% - 90% |  | 44% - 48% |  | 48% - 54%
Expected term (in years) |  | 0.5 - 1.0 |  | 0.5 - 1.0 |  | 0.5 - 1.0
Risk-free interest rate |  | 2.46% - 4.67% |  | 0.06% - 0.29% |  | 0.09% - 0.18%
Expected dividend yield |  | — |  | — |  | —

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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