| Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
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| Net income | -485 | -53 | -256 | 336 | 553 | 454 | 452 |
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| Depreciation and amortization | 167 | 174 | 159 | 151 | 157 | 170 | 137 |
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| Stock-based compensation | 650 | 261 | 262 | 287 | 331 | 338 | 347 |
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| Impairment of Real Estate | - | - | - | - | - | -155 | 0 |
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| Amortization of debt issuance costs | - | - | - | 4 | 4 | 4 | 5 |
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| Net loss (gain) on equity investments | - | - | 18 | - | 5 | - | -0 |
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| Amortization of deferred commissions | - | - | 24 | 32 | 40 | 39 | 30 |
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| Non-cash operating lease expense | - | - | - | - | 64 | 44 | 36 |
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| Deferred taxes | - | - | - | - | -396 | 38 | -5 |
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| Other | 2 | 17 | 3 | 4 | 1 | 1 | -4 |
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| Trade and other receivables, net | -0 | 8 | 6 | 6 | 6 | 15 | 2 |
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| Prepaid expenses and other current assets | 48 | 18 | 39 | 58 | 50 | 41 | 5 |
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| Other assets | 11 | -61 | -62 | -50 | 10 | -23 | -6 |
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| Accounts payable | -2 | 6 | -20 | 8 | 13 | 1 | -4 |
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| Accrued and other current liabilities | 40 | 23 | -10 | -35 | 5 | -21 | -25 |
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| Accrued compensation and benefits | 25 | 19 | 12 | 24 | -7 | -23 | -4 |
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| Deferred revenue | 66 | 69 | 55 | 60 | 26 | 22 | 2 |
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| Other non-current liabilities | 12 | -62 | -73 | -109 | -18 | -1 | -6 |
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| Operating lease liabilities | - | - | - | - | -86 | -65 | -57 |
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| Tenant improvement allowance reimbursement | - | 55 | 23 | 5 | 9 | 1 | - |
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| Cash paid for lease termination | - | - | - | 32 | - | 28 | 15 |
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| Net cash provided by operating activities | 425 | 529 | 571 | 730 | 797 | 784 | 894 |
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| Capital expenditures | 63 | 136 | 80 | 22 | 34 | 24 | 23 |
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| Purchase of intangible assets | 3 | 2 | 0 | 7 | 1 | 0 | 0 |
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| Business combinations, net of cash acquired | - | 174 | - | 140 | 75 | - | 58 |
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| Purchases of short-term investments | 850 | 775 | 756 | 1,138 | 571 | 209 | 62 |
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| Proceeds from Sale of Short-Term Investments | 212 | 295 | 387 | 449 | 214 | 352 | 242 |
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| Proceeds from maturities of short-term investments | 71 | 456 | 199 | 294 | 389 | 252 | 314 |
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| Proceeds from sales of equity investments | - | - | - | - | 11 | - | - |
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| Other | 1 | -16 | -17 | -40 | -20 | -24 | -31 |
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| Net cash provided by (used in) investing activities | -634 | -320 | -234 | -525 | -48 | 395 | 444 |
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| Proceeds from Lines of Credit | - | - | - | - | - | - | 1,000 |
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| Payments of debt issuance costs | - | - | - | 24 | - | 0 | 50 |
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| Payments for taxes related to net share settlement of restricted stock units and awards | 352 | 85 | 92 | 125 | 119 | 135 | 149 |
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| Proceeds from Issuance of Common Stock | 26 | 2 | 2 | 7 | 1 | 3 | 1 |
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| Principal payments on finance lease obligations | - | - | 90 | 110 | 128 | 127 | 129 |
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| Common stock repurchases | - | - | 398 | 1,059 | 795 | 540 | 1,242 |
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| Payment of acquisition-related indemnification holdback | - | - | - | - | - | - | 18 |
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| Net cash used in financing activities | 301 | -177 | -578 | 16 | -1,042 | -799 | -587 |
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| Effect of exchange rate changes on cash, cash equivalents, and restricted cash | - | 0 | 4 | -3 | -7 | 2 | -6 |
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| Change in cash, cash equivalents, and restricted cash | - | 32 | -236 | 218 | -300 | 382 | 746 |
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| Interest | 8 | 10 | 10 | 9 | 8 | 11 | 15 |
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| Income taxes | 1 | 1 | 5 | 4 | 28 | 68 | 61 |
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| Capital Expenditures Incurred but Not yet Paid | 7 | 20 | 8 | 6 | 3 | 2 | - |
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| Property and equipment acquired under finance leases | - | - | - | - | - | 145 | 172 |
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