| Cover | 12 Months Ended |
| Dec. 31, 2022 | |
| Document Information [Line Items] | |
| Document Type | DEF 14A |
| Amendment Flag | false |
| Entity Information [Line Items] | |
| Entity Registrant Name | Mr. Cooper Group Inc. |
| Entity Central Index Key | 0000933136 |
| Pay vs Performance Disclosure Unit_pure in Millions | 12 Months Ended | ||
| Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | |
| Pay vs Performance Disclosure [Table] | |||
| Pay vs Performance [Table Text Block] | Pay Versus Performance The SEC has adopted a rule requiring annual disclosure of pay-versus-performance S-K. Value of Initial Fixed $100 Investment Based on: Year Summary (1) Compensation (1,2,3) Average Non-PEO NEOs (1) Average Non-PEO (1,2,3) TSR Peer (4) Net (millions) Tangible (millions) 2022 $10,762,373 $10,654,884 $2,808,655 $ 2,810,727 $321 $111 $ 923 $3,929 2021 $ 8,761,455 $19,701,296 $3,359,019 $ 5,536,118 $333 $126 $1,454 $3,233 2020 $ 9,261,290 $40,893,899 $3,689,256 $12,707,838 $248 $ 96 $ 307 $2,353 (1) The PEO in each covered year is Mr. Bray. The Non-PEO (2) The amounts shown for Compensation Actually Paid have been calculated in accordance with Item 402(v) of Regulation S-K (3) Adjustments: 2020 2021 2022 PEO Average non- PEO NEOs PEO Average non- PEO NEOs PEO Average non- Total Amounts Reported in the Summary Compensation Table for Applicable FY $ 9,261,290 $ 3,689,256 $ 8,761,455 $ 3,359,019 $ 10,762,373 $ 2,808,655 Deduction for Amounts Reported under the “Stock Awards” and “Option Awards” Columns in the Summary Compensation Table for Applicable FY $ (3,500,000 ) $ (937,504 ) $ (4,750,000 ) $ (1,612,511 ) $ (7,250,173 ) $ (1,527,056 ) Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Remain Unvested as of Applicable FY End, determined as of Applicable FY End $ 16,442,974 $ 3,646,734 $ 7,960,519 $ 2,036,075 $ 4,777,273 $ 1,069,909 Increase/deduction for Awards Granted during a Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End $ 18,658,901 $ 6,298,140 $ 6,974,323 $ 1,453,292 $ (1,107,235 ) $ (163,698 ) Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Vested during Applicable FY, determined as of Vesting Date – – – – – – Increase/deduction for Awards Granted during a Prior FY that Vested During Applicable FY, determined based on change in ASC 718 Fair Value from Prior FY End to Vesting Date $ 30,734 $ 11,212 $ 754,999 $ 300,243 $ 3,472,646 $ 622,917 Deduction of ASC 718 Fair Value of Awards Granted during a Prior FY that were Forfeited during Applicable FY, determined as of Prior FY End – – – – – – Increase based on Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date – – – – – – Increase based on Incremental Fair Value of Options/SARs Modified during Applicable FY – – – – – – Deduction for Change in the Actuarial Present Values reported under the “Change in Pension Value and Nonqualified Deferred Compensation Earnings” Column of the Summary Compensation Table for Applicable FY – – – – – – Increase for Service Cost and, if applicable, Prior Service Cost for Pension Plans – – – – – – TOTALS $ 40,893,899 $ 12,707,838 $ 19,701,296 $ 5,536,118 $ 10,654,884 $ 2,810,727 (4) We selected the S&P Composite 1500 Financials Index as our peer group for purposes of this disclosure. This index is also utilized in (a) our Annual Reports on Form 10-K | ||
| Company Selected Measure Name | Tangible Book Value | ||
| Named Executive Officers, Footnote [Text Block] | The Non-PEO | ||
| Peer Group Issuers, Footnote [Text Block] | We selected the S&P Composite 1500 Financials Index as our peer group for purposes of this disclosure | ||
| PEO Total Compensation Amount | $ 10,762,373 | $ 8,761,455 | $ 9,261,290 |
| PEO Actually Paid Compensation Amount | $ 10,654,884 | 19,701,296 | 40,893,899 |
| Adjustment To PEO Compensation, Footnote [Text Block] | 2020 2021 2022 PEO Average non- PEO NEOs PEO Average non- PEO NEOs PEO Average non- Total Amounts Reported in the Summary Compensation Table for Applicable FY $ 9,261,290 $ 3,689,256 $ 8,761,455 $ 3,359,019 $ 10,762,373 $ 2,808,655 Deduction for Amounts Reported under the “Stock Awards” and “Option Awards” Columns in the Summary Compensation Table for Applicable FY $ (3,500,000 ) $ (937,504 ) $ (4,750,000 ) $ (1,612,511 ) $ (7,250,173 ) $ (1,527,056 ) Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Remain Unvested as of Applicable FY End, determined as of Applicable FY End $ 16,442,974 $ 3,646,734 $ 7,960,519 $ 2,036,075 $ 4,777,273 $ 1,069,909 Increase/deduction for Awards Granted during a Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End $ 18,658,901 $ 6,298,140 $ 6,974,323 $ 1,453,292 $ (1,107,235 ) $ (163,698 ) Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Vested during Applicable FY, determined as of Vesting Date – – – – – – Increase/deduction for Awards Granted during a Prior FY that Vested During Applicable FY, determined based on change in ASC 718 Fair Value from Prior FY End to Vesting Date $ 30,734 $ 11,212 $ 754,999 $ 300,243 $ 3,472,646 $ 622,917 Deduction of ASC 718 Fair Value of Awards Granted during a Prior FY that were Forfeited during Applicable FY, determined as of Prior FY End – – – – – – Increase based on Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date – – – – – – Increase based on Incremental Fair Value of Options/SARs Modified during Applicable FY – – – – – – Deduction for Change in the Actuarial Present Values reported under the “Change in Pension Value and Nonqualified Deferred Compensation Earnings” Column of the Summary Compensation Table for Applicable FY – – – – – – Increase for Service Cost and, if applicable, Prior Service Cost for Pension Plans – – – – – – TOTALS $ 40,893,899 $ 12,707,838 $ 19,701,296 $ 5,536,118 $ 10,654,884 $ 2,810,727 | ||
| Non-PEO NEO Average Total Compensation Amount | $ 2,808,655 | 3,359,019 | 3,689,256 |
| Non-PEO NEO Average Compensation Actually Paid Amount | $ 2,810,727 | 5,536,118 | 12,707,838 |
| Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | 2020 2021 2022 PEO Average non- PEO NEOs PEO Average non- PEO NEOs PEO Average non- Total Amounts Reported in the Summary Compensation Table for Applicable FY $ 9,261,290 $ 3,689,256 $ 8,761,455 $ 3,359,019 $ 10,762,373 $ 2,808,655 Deduction for Amounts Reported under the “Stock Awards” and “Option Awards” Columns in the Summary Compensation Table for Applicable FY $ (3,500,000 ) $ (937,504 ) $ (4,750,000 ) $ (1,612,511 ) $ (7,250,173 ) $ (1,527,056 ) Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Remain Unvested as of Applicable FY End, determined as of Applicable FY End $ 16,442,974 $ 3,646,734 $ 7,960,519 $ 2,036,075 $ 4,777,273 $ 1,069,909 Increase/deduction for Awards Granted during a Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End $ 18,658,901 $ 6,298,140 $ 6,974,323 $ 1,453,292 $ (1,107,235 ) $ (163,698 ) Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY that Vested during Applicable FY, determined as of Vesting Date – – – – – – Increase/deduction for Awards Granted during a Prior FY that Vested During Applicable FY, determined based on change in ASC 718 Fair Value from Prior FY End to Vesting Date $ 30,734 $ 11,212 $ 754,999 $ 300,243 $ 3,472,646 $ 622,917 Deduction of ASC 718 Fair Value of Awards Granted during a Prior FY that were Forfeited during Applicable FY, determined as of Prior FY End – – – – – – Increase based on Dividends or Other Earnings Paid during Applicable FY prior to Vesting Date – – – – – – Increase based on Incremental Fair Value of Options/SARs Modified during Applicable FY – – – – – – Deduction for Change in the Actuarial Present Values reported under the “Change in Pension Value and Nonqualified Deferred Compensation Earnings” Column of the Summary Compensation Table for Applicable FY – – – – – – Increase for Service Cost and, if applicable, Prior Service Cost for Pension Plans – – – – – – TOTALS $ 40,893,899 $ 12,707,838 $ 19,701,296 $ 5,536,118 $ 10,654,884 $ 2,810,727 | ||
| Compensation Actually Paid vs. Total Shareholder Return [Text Block] | |||
| Compensation Actually Paid vs. Net Income [Text Block] | |||
| Compensation Actually Paid vs. Company Selected Measure [Text Block] | |||
| Total Shareholder Return Vs Peer Group [Text Block] | * | ||
| Tabular List [Table Text Block] | For fiscal year 2022, our Compensation Committee identified the performance measures listed below (listed in no particular order) as the most important in its compensation-setting process for our NEOs: Financial Performance Measures Tangible Book Value TSR Adjusted EBT | ||
| Total Shareholder Return Amount | $ 321 | 333 | 248 |
| Peer Group Total Shareholder Return Amount | 111 | 126 | 96 |
| Net Income (Loss) | $ 923,000,000 | $ 1,454,000,000 | $ 307,000,000 |
| Company Selected Measure Amount | 3,929 | 3,233 | 2,353 |
| PEO Name | Mr. Bray | ||
| Measure [Axis]: 1 | |||
| Pay vs Performance Disclosure [Table] | |||
| Measure Name | Tangible Book Value | ||
| Measure [Axis]: 2 | |||
| Pay vs Performance Disclosure [Table] | |||
| Measure Name | TSR | ||
| Measure [Axis]: 3 | |||
| Pay vs Performance Disclosure [Table] | |||
| Measure Name | Adjusted EBT | ||
| PEO [Member] | Deduct: Equity Awards Value In Summary Compensation Table (Grant Date Value) [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Equity Awards (from Summary Compensation Table) | $ (7,250,173) | $ (4,750,000) | $ (3,500,000) |
| PEO [Member] | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Equity Awards (from Summary Compensation Table) | 3,472,646 | 754,999 | 30,734 |
| PEO [Member] | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Equity Awards (from Summary Compensation Table) | 4,777,273 | 7,960,519 | 16,442,974 |
| PEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Equity Awards (from Summary Compensation Table) | (1,107,235) | 6,974,323 | 18,658,901 |
| Non-PEO NEO [Member] | Deduct: Equity Awards Value In Summary Compensation Table (Grant Date Value) [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Equity Awards (from Summary Compensation Table) | (1,527,056) | (1,612,511) | (937,504) |
| Non-PEO NEO [Member] | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Equity Awards (from Summary Compensation Table) | 622,917 | 300,243 | 11,212 |
| Non-PEO NEO [Member] | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Equity Awards (from Summary Compensation Table) | 1,069,909 | 2,036,075 | 3,646,734 |
| Non-PEO NEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Equity Awards (from Summary Compensation Table) | $ (163,698) | $ 1,453,292 | $ 6,298,140 |
