| 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 | NEW YORK COMMUNITY BANCORP INC |
| Entity Central Index Key | 0000910073 |
| Pay vs Performance Disclosure | 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 As Street S-K, paid pay-for-performance The following table reports the compensation of our CEO and the Year Summary (1) (Mr. Cangemi) Compensation (2) (Mr. Cangemi) Summary (Mr. Ficalora) Compensation (Mr. Ficalora) Average Non-CEO Average Non-CEO (3) Value of Initial Fixed Net (000) (5) EPS Total (4) S&P U.S. 2022 6,280,354 4,408,948 — — 4,662,199 3,471,410 87.19 98.38 650 1.26 2021 8,652,305 9,452,320 — — 2,653,231 2,993,324 115.54 118.61 596 1.20 2020 — — 5,095,874 (6,769,897 ) 2,607,607 2,383,152 94.18 87.24 511 1.02 (1) Amounts reported in “Summary Compensation Table Total for CEO Cangemi” and “Average Summary Compensation Table Total for non-CEO (2) Thomas R. Cangemi is the CEO for 2022 and 2021, and Joseph R. Ficalora is the CEO for 2020. The Non-CEOs Non-CEOs Non-CEOs (3) The amounts reported in these columns represent the amount of Compensation Actually Paid to Mr. Cangemi S-K. m 402(v) of Regulatio S-K, CEO Average of Other NEOs Adjustments 2022 2021 2020 2022 2021 2020 Summary Compensation Table Total $ 6,280,354 $ 8,652,305 $ 5,095,874 $ 4,662,199 $ 2,653,231 $ 2,607,607 Pension values as report in SCT — — — — — — Fair value of equity awards granted during fiscal year (2,996,246 ) (5,058,239 ) (2,800,000 ) (1,542,504 ) (1,095,859 ) (882,752 ) Pension value attributable to current years’ service and any change in pension value attributable to plan amendments made in current year — — — — — — Increase for Fair Value of Awards Granted during year that Remain Unvested as of Year end 2,553,787 5,392,864 — 1,268,541 1,127,377 873,289 Dividends paid on stock in the covered fiscal year prior to the vesting date that are not otherwise included in the total compensation for the covered fiscal year 232,364 118,545 — 5,103 66,522 51,923 Change in fair value from end of prior fiscal year to end of current fiscal year for awards made in prior fiscal years that were unvested at end of current fiscal year (1,613,580 ) 255,363 — (327,314 ) 185,893 (176,548 ) Change in fair value from end of prior fiscal year to vesting date for awards made in prior fiscal years that vested during current fiscal year (47,732 ) 91,482 (368,760 ) (42,254 ) 56,160 (90,368 ) Deduction of Fair Value of Awards Granted Prior to year that were Forfeited during year — — (8,697,011 ) (552,358 ) — — Compensation Actually Paid (CAP) $ 4,408,948 $ 9,452,320 $ (6,769,897 ) $ 3,471,410 $ 2,993,324 $ 2,383,152 (4) The Peer Group TSR set forth in this table utilizes the S&P U.S. BMI Banks Index (assuming reinvestment of all dividends), which we also utilize in the stock performance graph required by Item 201(e) of Regulation S-K 10-K (5) Net Income as reported on pages 78-82 10-K | ||
| Company Selected Measure Name | EPS | ||
| Named Executive Officers, Footnote [Text Block] | Thomas R. Cangemi is the CEO for 2022 and 2021, and Joseph R. Ficalora is the CEO for 2020. The Non-CEOs Non-CEOs Non-CEOs | ||
| Peer Group Issuers, Footnote [Text Block] | The Peer Group TSR set forth in this table utilizes the S&P U.S. BMI Banks Index (assuming reinvestment of all dividends), which we also utilize in the stock performance graph required by Item 201(e) of Regulation S-K 10-K | ||
| Adjustment To PEO Compensation, Footnote [Text Block] | (3) The amounts reported in these columns represent the amount of Compensation Actually Paid to Mr. Cangemi S-K. m 402(v) of Regulatio S-K, CEO Average of Other NEOs Adjustments 2022 2021 2020 2022 2021 2020 Summary Compensation Table Total $ 6,280,354 $ 8,652,305 $ 5,095,874 $ 4,662,199 $ 2,653,231 $ 2,607,607 Pension values as report in SCT — — — — — — Fair value of equity awards granted during fiscal year (2,996,246 ) (5,058,239 ) (2,800,000 ) (1,542,504 ) (1,095,859 ) (882,752 ) Pension value attributable to current years’ service and any change in pension value attributable to plan amendments made in current year — — — — — — Increase for Fair Value of Awards Granted during year that Remain Unvested as of Year end 2,553,787 5,392,864 — 1,268,541 1,127,377 873,289 Dividends paid on stock in the covered fiscal year prior to the vesting date that are not otherwise included in the total compensation for the covered fiscal year 232,364 118,545 — 5,103 66,522 51,923 Change in fair value from end of prior fiscal year to end of current fiscal year for awards made in prior fiscal years that were unvested at end of current fiscal year (1,613,580 ) 255,363 — (327,314 ) 185,893 (176,548 ) Change in fair value from end of prior fiscal year to vesting date for awards made in prior fiscal years that vested during current fiscal year (47,732 ) 91,482 (368,760 ) (42,254 ) 56,160 (90,368 ) Deduction of Fair Value of Awards Granted Prior to year that were Forfeited during year — — (8,697,011 ) (552,358 ) — — Compensation Actually Paid (CAP) $ 4,408,948 $ 9,452,320 $ (6,769,897 ) $ 3,471,410 $ 2,993,324 $ 2,383,152 | ||
| Non-PEO NEO Average Total Compensation Amount | $ 4,662,199 | $ 2,653,231 | $ 2,607,607 |
| Non-PEO NEO Average Compensation Actually Paid Amount | $ 3,471,410 | 2,993,324 | 2,383,152 |
| Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | (3) The amounts reported in these columns represent the amount of Compensation Actually Paid to Mr. Cangemi S-K. m 402(v) of Regulatio S-K, CEO Average of Other NEOs Adjustments 2022 2021 2020 2022 2021 2020 Summary Compensation Table Total $ 6,280,354 $ 8,652,305 $ 5,095,874 $ 4,662,199 $ 2,653,231 $ 2,607,607 Pension values as report in SCT — — — — — — Fair value of equity awards granted during fiscal year (2,996,246 ) (5,058,239 ) (2,800,000 ) (1,542,504 ) (1,095,859 ) (882,752 ) Pension value attributable to current years’ service and any change in pension value attributable to plan amendments made in current year — — — — — — Increase for Fair Value of Awards Granted during year that Remain Unvested as of Year end 2,553,787 5,392,864 — 1,268,541 1,127,377 873,289 Dividends paid on stock in the covered fiscal year prior to the vesting date that are not otherwise included in the total compensation for the covered fiscal year 232,364 118,545 — 5,103 66,522 51,923 Change in fair value from end of prior fiscal year to end of current fiscal year for awards made in prior fiscal years that were unvested at end of current fiscal year (1,613,580 ) 255,363 — (327,314 ) 185,893 (176,548 ) Change in fair value from end of prior fiscal year to vesting date for awards made in prior fiscal years that vested during current fiscal year (47,732 ) 91,482 (368,760 ) (42,254 ) 56,160 (90,368 ) Deduction of Fair Value of Awards Granted Prior to year that were Forfeited during year — — (8,697,011 ) (552,358 ) — — Compensation Actually Paid (CAP) $ 4,408,948 $ 9,452,320 $ (6,769,897 ) $ 3,471,410 $ 2,993,324 $ 2,383,152 | ||
| Compensation Actually Paid vs. Total Shareholder Return [Text Block] | Compensation Actually Paid Compared to TSR: | ||
| Compensation Actually Paid vs. Net Income [Text Block] | Compensation Actually Paid Compared to Net Income: | ||
| Compensation Actually Paid vs. Company Selected Measure [Text Block] | Compensation Actually Paid Compared to EPS: | ||
| Tabular List [Table Text Block] | ☐ Financial Performance Measures As described in greater detail in the CD&A, the metrics that the Company uses for both our short- and long-term incentive plans are selected to drive the creation of shareholder value through positive business results. The most important financial performance measures used by the Company to link Compensation Actually Paid to NEOs, for the most recently completed fiscal year to Company’s performance are as follows: 1. Pre-tax operating 2. Return on Average Tangible Assets (ROATA) 3. EPS Growth 4. Return on Average Tangible Common Equity (ROATCE) | ||
| Total Shareholder Return Amount | $ 87.19 | 115.54 | 94.18 |
| Peer Group Total Shareholder Return Amount | 98.38 | 118.61 | 87.24 |
| Net Income (Loss) | $ 650,000 | $ 596,000 | $ 511,000 |
| Company Selected Measure Amount | 1.26 | 1.2 | 1.02 |
| Measure [Axis]: 1 | |||
| Pay vs Performance Disclosure [Table] | |||
| Measure Name | Pre-tax operating earnings | ||
| Measure [Axis]: 2 | |||
| Pay vs Performance Disclosure [Table] | |||
| Measure Name | Return on Average Tangible Assets (ROATA) | ||
| Measure [Axis]: 3 | |||
| Pay vs Performance Disclosure [Table] | |||
| Measure Name | EPS Growth | ||
| Measure [Axis]: 4 | |||
| Pay vs Performance Disclosure [Table] | |||
| Measure Name | Return on Average Tangible Common Equity (ROATCE) | ||
| Thomas R. Cangemi [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| PEO Total Compensation Amount | $ 6,280,354 | $ 8,652,305 | $ 0 |
| PEO Actually Paid Compensation Amount | $ 4,408,948 | $ 9,452,320 | 0 |
| PEO Name | Thomas R. Cangemi | Thomas R. Cangemi | |
| Joseph R. Ficalora [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| PEO Total Compensation Amount | $ 0 | $ 0 | 5,095,874 |
| PEO Actually Paid Compensation Amount | 0 | 0 | $ (6,769,897) |
| PEO Name | Joseph R. Ficalora | ||
| PEO [Member] | Pension Values as Report in SCT [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | 0 | 0 | $ 0 |
| PEO [Member] | Fair Value of Equity Awards Granted During Fiscal Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | (2,996,246) | (5,058,239) | (2,800,000) |
| PEO [Member] | Pension Value Attributable to Current Years Service and any Change in Pension Value Attributable to Plan Amendments Made in Current Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | 0 | 0 | 0 |
| PEO [Member] | Increase for Fair Value of Awards Granted during year that Remain Unvested as of Year end [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | 2,553,787 | 5,392,864 | 0 |
| PEO [Member] | Dividends Paid on Stock in the Covered Fiscal Year Prior to the Vesting Date that are not Otherwise included in the Total Compensation for the Covered Fiscal Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | 232,364 | 118,545 | 0 |
| PEO [Member] | Change in fair Value From End of Prior Fiscal year to End of Current Fiscal Year For Awards Made in Prior Fiscal Years that were Unvested at End of Current Fiscal Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | (1,613,580) | 255,363 | 0 |
| PEO [Member] | Change In Fair Value From End Of Prior Fiscal Year To Vesting Date For Awards Made In Prior Fiscal Years That Vested During Current Fiscal Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | (47,732) | 91,482 | (368,760) |
| PEO [Member] | Deduction of Fair Value of Awards Granted Prior to year that were Forfeited During Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | 0 | 0 | (8,697,011) |
| Non-PEO NEO [Member] | Pension Values as Report in SCT [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | 0 | 0 | 0 |
| Non-PEO NEO [Member] | Fair Value of Equity Awards Granted During Fiscal Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | (1,542,504) | (1,095,859) | (882,752) |
| Non-PEO NEO [Member] | Pension Value Attributable to Current Years Service and any Change in Pension Value Attributable to Plan Amendments Made in Current Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | 0 | 0 | 0 |
| Non-PEO NEO [Member] | Increase for Fair Value of Awards Granted during year that Remain Unvested as of Year end [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | 1,268,541 | 1,127,377 | 873,289 |
| Non-PEO NEO [Member] | Dividends Paid on Stock in the Covered Fiscal Year Prior to the Vesting Date that are not Otherwise included in the Total Compensation for the Covered Fiscal Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | 5,103 | 66,522 | 51,923 |
| Non-PEO NEO [Member] | Change in fair Value From End of Prior Fiscal year to End of Current Fiscal Year For Awards Made in Prior Fiscal Years that were Unvested at End of Current Fiscal Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | (327,314) | 185,893 | (176,548) |
| Non-PEO NEO [Member] | Change In Fair Value From End Of Prior Fiscal Year To Vesting Date For Awards Made In Prior Fiscal Years That Vested During Current Fiscal Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | (42,254) | 56,160 | (90,368) |
| Non-PEO NEO [Member] | Deduction of Fair Value of Awards Granted Prior to year that were Forfeited During Year [Member] | |||
| Pay vs Performance Disclosure [Table] | |||
| Adjustment to Compensation Amount | $ (552,358) | $ 0 | $ 0 |
