| Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Net loss | -192 | -232 | -137 | -95 |
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| Depreciation and amortization | 13 | 12 | 12 | 19 |
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| Capitalized Contract Cost, Amortization | 13 | 19 | 24 | 29 |
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| Non-cash lease expense | - | 6 | 8 | 9 |
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| Stock-based compensation | 173 | 208 | 211 | 217 |
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| Discount on amortization on marketable securities | -2 | 2 | 16 | 16 |
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| Deferred income taxes | -2 | -2 | -1 | -13 |
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| Other | 0 | -1 | -0 | -1 |
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| Accounts receivable | 18 | 19 | 27 | 17 |
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| Deferred contract acquisition costs | 24 | 29 | 27 | 35 |
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| Prepaid expenses and other assets | 6 | 8 | 7 | 1 |
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| Accounts payable | 2 | 0 | -2 | -2 |
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| Accrued and other liabilities | 18 | 8 | 2 | 14 |
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| Deferred revenue | 56 | 45 | 61 | 55 |
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| Operating lease liabilities | - | -9 | -13 | -4 |
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| Net cash provided by (used in) operating activities | 11 | -3 | 86 | 161 |
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| Purchases of property and equipment | 6 | 7 | 2 | 9 |
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| Proceeds from sale of property and equipment | 1 | 0 | 0 | 0 |
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| Capitalized internal-use software | 4 | 5 | 6 | 5 |
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| Purchases of marketable securities | 686 | 849 | 843 | 621 |
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| Sales of marketable securities | - | 93 | - | - |
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| Maturities and redemptions of marketable securities | - | 483 | 1,010 | 888 |
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| Business combination, net of cash acquired | - | - | - | 214 |
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| Net cash provided by (used in) investing activities | -420 | -285 | 158 | 39 |
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| Proceeds from issuance of common stock under employee stock purchase plan, net | - | 11 | 7 | 7 |
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| Proceeds from Stock Options Exercised | 0 | 0 | 0 | 0 |
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| Payment of withholding taxes on net share settlement of equity awards | 3 | 167 | 68 | 60 |
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| Payment of deferred offering costs | 7 | 0 | - | - |
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| Repurchase of common stock | - | - | - | 14 |
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| Net cash used in financing activities | 1,058 | -156 | -61 | -67 |
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| Net increase (decrease) in cash, cash equivalents and restricted cash | 650 | -444 | 184 | 132 |
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| Cash paid for taxes | 10 | 13 | 12 | 12 |
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| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | - | 15 | 7 | 13 |
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| Share-Based Payment Arrangement, Amount Capitalized | - | 2 | 2 | 1 |
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| Stock And Common Stock Options Issued | - | - | - | 13 |
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| Unsettled Common Stock Repurchases Payable | - | - | - | 2 |
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