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Indebtedness (Tables) | 9 Months Ended
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Sep. 30, 2021
Debt Disclosure [Abstract] |
Schedule of advance and warehouse facilities | Advance and Warehouse Facilities
|  |  |  |  |  |  |  |  |  | September 30, 2021 |  | December 31, 2020
|  | Interest Rate |  | Maturity Date |  | Collateral |  | Capacity Amount |  | Outstanding |  | Collateral Pledged |  | Outstanding |  | Collateral Pledged
Advance Facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
$940 advance facility(1) |  | LIBOR+3.5% |  | August 2023 |  | Servicing advance receivables |  | $ | 940 |  |  | $ | 170 |  |  | $ | 228 |  |  | $ | 235 |  |  | $ | 305 |
$350 advance facility(2) |  | LIBOR+1.1% to 6.5% |  | October 2022 |  | Servicing advance receivables |  | 350 |  |  | 168 |  |  | 211 |  |  | 192 |  |  | 246 |
$350 advance facility(3) |  | CP+2.0% to 6.5% |  | January 2022 |  | Servicing advance receivables |  | 350 |  |  | 136 |  |  | 159 |  |  | 168 |  |  | 195 |
$100 advance facility |  | LIBOR+2.5% |  | January 2022 |  | Servicing advance receivables |  | 100 |  |  | 65 |  |  | 86 |  |  | 74 |  |  | 98 |
Advance facilities principal amount |  |  |  |  |  | 539 |  |  | 684 |  |  | 669 |  |  | 844 |
Warehouse Facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
$4,000 warehouse facility(4) |  | LIBOR+1.6% to 2.2% |  | February 2023 |  | Mortgage loans or MBS |  | 4,000 |  |  | 3,117 |  |  | 3,352 |  |  | 339 |  |  | 392 |
$2,500 warehouse facility(5) |  | LIBOR+1.6% to 1.9% |  | October 2022 |  | Mortgage loans or MBS |  | 2,500 |  |  | 1,225 |  |  | 1,276 |  |  | 1,003 |  |  | 1,037 |
$1,600 warehouse facility(6)(7) |  | LIBOR+1.5% to 3.0% |  | September 2023 |  | Mortgage loans or MBS |  | 1,600 |  |  | 906 |  |  | 945 |  |  | 951 |  |  | 977 |
$1,500 warehouse facility |  | LIBOR+1.5% |  | June 2022 |  | Mortgage loans or MBS |  | 1,500 |  |  | 546 |  |  | 529 |  |  | 1,081 |  |  | 1,028 |
$1,200 warehouse facility(6) |  | LIBOR+1.8% to 3.0% |  | November 2021 |  | Mortgage loans or MBS |  | 1,200 |  |  | 473 |  |  | 492 |  |  | 586 |  |  | 607 |
$600 warehouse facility(6) |  | LIBOR+2.5% |  | February 2022 |  | Mortgage loans or MBS |  | 600 |  |  | 37 |  |  | 38 |  |  | — |  |  | — |
$550 warehouse facility(8) |  | LIBOR+1.5% |  | August 2022 |  | Mortgage loans or MBS |  | 550 |  |  | 84 |  |  | 86 |  |  | 477 |  |  | 492 |
$500 warehouse facility |  | LIBOR+1.5% to 3.0% |  | June 2023 |  | Mortgage loans or MBS |  | 500 |  |  | 439 |  |  | 452 |  |  | — |  |  | — |
$500 warehouse facility(9) |  | LIBOR+1.5% to 1.8% |  | September 2022 |  | Mortgage loans or MBS |  | 500 |  |  | 231 |  |  | 238 |  |  | 562 |  |  | 574 |
$500 warehouse facility(6) |  | LIBOR+1.5% to 4.0% |  | June 2022 |  | Mortgage loans or MBS |  | 500 |  |  | 125 |  |  | 125 |  |  | — |  |  | — |
$500 warehouse facility |  | LIBOR+1.7% |  | August 2023 |  | Mortgage loans or MBS |  | 500 |  |  | 48 |  |  | 49 |  |  | — |  |  | — |
$300 warehouse facility |  | LIBOR+1.4% |  | January 2022 |  | Mortgage loans or MBS |  | 300 |  |  | 94 |  |  | 96 |  |  | 163 |  |  | 164 |
$200 warehouse facility(10) |  | LIBOR+1.8% |  | October 2021 |  | Mortgage loans or MBS |  | 200 |  |  | 3 |  |  | 3 |  |  | 131 |  |  | 134 |
$200 warehouse facility(11) |  | LIBOR+1.6% to 4.9% |  | April 2022 |  | Mortgage loans or MBS |  | 200 |  |  | 47 |  |  | 54 |  |  | 37 |  |  | 42 |
$30 warehouse facility(6)(12) |  | LIBOR+3.3% |  | January 2022 |  | Mortgage loans or MBS |  | 30 |  |  | — |  |  | — |  |  | — |  |  | — |
Warehouse facilities principal amount |  | 7,375 |  |  | 7,735 |  |  | 5,330 |  |  | 5,447 |
MSR Facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
$400 warehouse facility(13) |  | LIBOR+3.0% |  | August 2022 |  | MSR |  | 400 |  | 35 |  | 685 |  | — |  | 247
$400 warehouse facility(7) |  | LIBOR+3.0% |  | September 2023 |  | MSR |  | 400 |  | — |  | 601 |  | — |  | 228
$260 warehouse facility(1) |  | LIBOR+3.5% |  | August 2023 |  | MSR |  | 260 |  | 260 |  | 940 |  | 260 |  | 668
$50 warehouse facility |  | LIBOR+3.3% |  | November 2022 |  | MSR |  | 50 |  | 10 |  | 69 |  | 10 |  | 74
MSR facilities principal amount |  | 305 |  | 2,295 |  | 270 |  | 1,217
Advance, warehouse and MSR facilities principal amount |  | 8,219 |  |  | $ | 10,714 |  | 6,269 |  |  | $ | 7,508 |
Unamortized debt issuance costs |  |  |  |  |  |  |  | (13) |  |  |  | (11) |  |  |
Advance and warehouse facilities, net |  | $ | 8,206 |  |  |  | $ | 6,258 |  |
(1)Total capacity for this facility is $1,200, of which $940 is internally allocated for advance financing and $260 is internally allocated for MSR financing; capacity is fully fungible and is not restricted by these allocations, in comparison to $900, $640, and $260 respectively in 2020. (2)The capacity amount for this advance facility decreased from $425 to $350 in 2021. (3)The capacity amount for this advance facility decreased from $875 to $350 in 2021. (4)The capacity amount for this warehouse facility increased from $2,000 to $4,000 in 2021. (5)The capacity amount for this warehouse facility increased from $1,500 to $2,500 in 2021. (6)The outstanding and collateral pledged amounts excluded balances related to reverse mortgage interests, which are included in liabilities of discontinued operations. Refer to Note 2, Discontinued Operations for further details on liabilities of discontinued operations. (7)The capacity amount for this facility increased from $1,500 to $2,000, and its related sublimit for MSR financing has increased from $150 to $400 in 2021. (8)The capacity amount for this warehouse facility decreased from $750 to $550 in 2021. (9)The capacity amount for this warehouse facility decreased from $750 to $500 in 2021. (10)This facility was subsequently terminated in October 2021. (11)The capacity amount for this warehouse facility increased from $50 to $200 in 2021 (12)The capacity amount for this warehouse facility decreased from $40 to $30 in 2021. (13)The capacity amount for this warehouse facility increased from $200 to $400 in 2021.
Schedule of unsecured senior notes | Unsecured senior notes consist of the following:
Unsecured Senior Notes | September 30, 2021 |  | December 31, 2020
$850 face value, 5.500% interest rate payable semi-annually, due August 2028 | $ | 850 |  |  | $ | 850 |
$650 face value, 5.125% interest rate payable semi-annually, due December 2030 | 650 |  |  | 650 |
$600 face value, 6.000% interest rate payable semi-annually, due January 2027 | 600 |  |  | 600 |
Unsecured senior notes principal amount | 2,100 |  |  | 2,100 |
Unamortized debt issuance costs | (24) |  |  | (26) |
Unsecured senior notes, net | $ | 2,076 |  |  | $ | 2,074 |
Schedule of maturities of long-term debt | As of September 30, 2021, the expected maturities of the Company’s unsecured senior notes based on contractual maturities are as follows:
Year Ending December 31, |  | Amount
2021 through 2025 |  | $ | — |
Thereafter |  | 2,100 |
Total unsecured senior notes principal amount |  | $ | 2,100 |

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