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Summary of Significant Accounting Policies - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Jan. 31, 2023 | Jan. 31, 2022 | Jan. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Payment terms for deferred revenue | 30 days |  |
Commissions capitalized as contract costs | $ 121,000,000 | $ 171,000,000 |
Amortization of contract costs | 84,000,000 | 57,000,000 | $ 40,000,000
Advertising expenses | $ 77,000,000 | 79,000,000 | 33,000,000
Expected dividend yield | 0.00% |  |
Noncurrent portion of restricted cash | $ 7,000,000 | 8,000,000 |
Goodwill impairments | 0 | 0 | 0
Interest expense decrease | $ (11,000,000) | $ (91,000,000) | $ (73,000,000)
Net loss per share, basic, decrease (in dollars per share) | $ 5.16 | $ 5.73 | $ 2.09
Net loss per share, diluted, decrease (in dollars per share) | $ 5.16 | $ 5.73 | $ 2.09
RSUs |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Requisite service period | 4 years |  |
Capitalized internal-use software costs |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Intangible asset, useful life | 3 years |  |
Adjustment |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Interest expense decrease | $ 85,000,000 |  |
Net loss per share, basic, decrease (in dollars per share) | $ 0.54 |  |
Net loss per share, diluted, decrease (in dollars per share) | $ 0.54 |  |
Minimum |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Contract duration | 1 year |  |
Amortization period for capitalized contract costs | 2 years |  |
Maximum |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Contract duration | 5 years |  |
Amortization period for capitalized contract costs | 5 years |  |

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