| 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 cash equivalents | 122 | 164 | 191 | 191 | 233 | 165 | 198 |
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| Restricted cash | - | 58 | 67 | 75 | 80 | 94 | 107 |
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| Loans held for sale, at fair value | 991 | 215 | 1,087 | 1,072 | 138 | 529 | 775 |
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| Other Assets, Current | 58 | 91 | 64 | 83 | 100 | 96 | 88 |
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| Total current assets | 1,757 | 1,074 | 1,819 | 2,524 | 1,076 | 1,506 | 1,773 |
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| Goodwill | 515 | 558 | 560 | 657 | 706 | 777 | 771 |
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| Servicing Asset | - | - | - | - | - | 531 | 518 |
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| Other Receivable, after Allowance for Credit Loss, Noncurrent | - | - | - | - | - | 651 | 769 |
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| Right-of-use assets | - | 202 | 191 | 607 | 639 | 596 | 501 |
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| Fixed assets, net | 79 | 98 | 96 | 136 | 156 | 178 | 167 |
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| Other intangible assets, net | 36 | 45 | 44 | 76 | 81 | 84 | 64 |
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| Other Assets, Noncurrent | 370 | 408 | 323 | 212 | 214 | 149 | 148 |
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| Total assets | 3,454 | 3,202 | 3,982 | 5,216 | 3,941 | 4,472 | 4,700 |
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| Warehouse Agreement Borrowings | 972 | 210 | 1,061 | 1,051 | 137 | 499 | 754 |
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| Accrued compensation | 367 | 344 | 280 | 463 | 370 | 401 | 448 |
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| Accounts Payable and Other Accrued Liabilities, Current | 312 | 417 | 327 | 529 | 512 | 584 | 578 |
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| Total current liabilities | 1,665 | 1,045 | 1,705 | 2,193 | 1,576 | 1,490 | 1,780 |
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| Long-term debt | 538 | 589 | 680 | 545 | - | 547 | 671 |
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| Right-of-use liabilities | - | 228 | 219 | 586 | 627 | 598 | 490 |
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| Other Liabilities, Noncurrent | 169 | 377 | 437 | 207 | 196 | 242 | 231 |
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| Total liabilities | 2,371 | 2,239 | 3,041 | 3,531 | 2,399 | 2,877 | 3,172 |
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| Redeemable partnership interests | 26 | 22 | 20 | 21 | 17 | 16 | 14 |
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| Class A Common Stock | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
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| Class B Common Stock | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Additional paid-in capital | 285 | 318 | 351 | 487 | 585 | 658 | 753 |
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| Retained earnings | 278 | 313 | 343 | 1,080 | 1,145 | 1,167 | 1,207 |
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| Treasury stock at cost: 74,983,414 and 56,591,397 shares of Class A common stock at December 31, 2024 and December 31, 2023, respectively | 0 | 35 | 41 | 290 | 539 | - | - |
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| Accumulated other comprehensive loss | - | - | -2 | -3 | -12 | -5 | -11 |
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| Total stockholders’ equity | 1,057 | 941 | 921 | 1,664 | 1,525 | 1,579 | 1,524 |
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| Noncontrolling interests | 489 | 341 | 266 | 386 | 344 | 326 | 319 |
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| Class A Common Stock | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
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| Class B Common Stock | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Total equity | 1,057 | 941 | 921 | 1,664 | 1,525 | 1,579 | 1,524 |
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| Total liabilities, redeemable partnership interests, and equity | 3,454 | 3,202 | 3,982 | 5,216 | 3,941 | 4,472 | 4,710 |
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