| 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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| Cash and equivalents | - | - | 188 | 368 | 432 | 570 | 580 |
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| Restricted cash | - | - | - | 2 | 1 | 1 | - |
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| Trade and other receivables, net | 70 | 80 | 101 | 146 | 180 | 229 | 265 |
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| Prepaid expenses and other current assets | - | 58 | 74 | 93 | 98 | 127 | 138 |
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| Total current assets before customer funds | - | - | 363 | 608 | 711 | 927 | 982 |
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| Customer funds | 2,604 | 3,204 | 3,759 | 3,536 | 4,183 | 5,029 | 5,002 |
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| Total current assets | 2,934 | 3,624 | 4,123 | 4,144 | 4,894 | 5,955 | 5,984 |
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| Right of use lease assets, net | - | 32 | 28 | 29 | 24 | 19 | 12 |
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| Property, Plant and Equipment, Net | 104 | 128 | 136 | 128 | 175 | 210 | 224 |
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| Goodwill | 1,927 | 1,974 | 2,032 | 2,324 | 2,280 | 2,294 | 2,337 |
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| Other intangible assets, net | 188 | 178 | 195 | 333 | 282 | 230 | 189 |
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| Deferred sales commissions | - | - | - | - | - | - | 232 |
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| Other assets | 2 | 150 | 188 | 208 | 262 | 302 | 140 |
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| Total assets | 5,154 | 6,086 | 6,701 | 7,166 | 7,917 | 9,011 | 9,117 |
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| Current portion of long-term debt | - | 11 | 7 | 8 | 8 | 8 | 7 |
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| Operating Lease, Liability, Current | - | 9 | 11 | 11 | 10 | 7 | 6 |
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| Accounts payable | 42 | 43 | 39 | 52 | 54 | 67 | 77 |
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| Deferred revenue | 17 | 26 | 24 | 49 | 41 | 40 | 42 |
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| Employee compensation and benefits | 55 | 76 | 65 | 77 | 97 | 93 | 127 |
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| Other accrued expenses | 24 | 14 | 21 | 25 | 24 | 30 | 32 |
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| Total current liabilities before customer funds obligations | - | - | 166 | 222 | 235 | 245 | 291 |
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| Customer funds obligations | - | - | - | 3,520 | 4,299 | 5,090 | 5,024 |
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| Total current liabilities | 2,764 | 3,372 | 3,864 | 3,742 | 4,534 | 5,335 | 5,315 |
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| Long-Term Debt and Lease Obligation | - | 666 | 661 | 1,124 | 1,213 | 1,210 | 1,209 |
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| Employee benefit plans | 153 | 117 | 24 | 21 | 18 | 28 | 6 |
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| Operating Lease, Liability, Noncurrent | - | 30 | 34 | 33 | 24 | 19 | 11 |
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| Other liabilities | 42 | 18 | 21 | 19 | 20 | 21 | 30 |
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| Total liabilities | 3,622 | 4,203 | 4,603 | 4,939 | 5,808 | 6,613 | 6,571 |
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| Common Stock, Value, Issued | 1 | 1 | 2 | 2 | 2 | 2 | 2 |
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| Additional paid in capital | 2,326 | 2,449 | 2,607 | 2,860 | 2,966 | 3,151 | 3,363 |
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| Accumulated deficit | -419 | -230 | -234 | -309 | -373 | -318 | -336 |
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| Accumulated other comprehensive loss | -376 | -338 | -276 | -325 | -485 | -437 | -483 |
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| Total stockholders’ equity | 1,532 | 1,882 | 2,098 | 2,228 | 2,109 | 2,398 | 2,546 |
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| Total liabilities and stockholders' equity | 5,154 | 6,086 | 6,701 | 7,166 | 7,917 | 9,011 | 9,117 |
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