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Consolidated Balance Sheets (Parenthetical) - USD ($) | Jun. 30, 2020 | Dec. 31, 2019
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Statement of Financial Position [Abstract] |  |
Forward MSRs - fair value | $ 2,757,000,000 | $ 3,496,000,000
Advances and other receivables, reserves | 216,000,000 | 175,000,000
Purchase discount, net | 127,000,000 | 114,000,000
Accumulated depreciation | $ 75,000,000 | $ 55,000,000
Preferred stock, par value (in dollars per share) | $ 0.00001 | $ 0.00001
Preferred stock, shares authorized (in shares) | 10,000,000 | 10,000,000
Preferred stock, shares issued (in shares) | 1,000,000 | 1,000,000
Preferred stock, shares outstanding (in shares) | 1,000,000 | 1,000,000
Preferred stock, liquidation preference | $ 10 | $ 10
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, shares authorized (in shares) | 300,000,000 | 300,000,000
Common stock, shares, issued (in shares) | 92,000,000.0 | 91,100,000

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