XML 155 R135.htm IDEA: XBRL DOCUMENT
v3.22.4

Fair Value Measurements - Summary of Quantitative Information (Details) - Fair Value, Measurements, Recurring $ in Millions | Dec. 31, 2022 USD ($)
--- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Fair Value | $ 1,033
Significant Unobservable Inputs (Level 3) |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Fair Value | 1,033
Minimum | Significant Unobservable Inputs (Level 3) |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Weighted average cost to service per loan | $ 65
Minimum | Significant Unobservable Inputs (Level 3) | Option adjusted spread |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Range (Weighted Average) | 5.3
Maximum | Significant Unobservable Inputs (Level 3) |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Weighted average cost to service per loan | $ 90
Maximum | Significant Unobservable Inputs (Level 3) | Option adjusted spread |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Range (Weighted Average) | 21.6
Weighted Average | Significant Unobservable Inputs (Level 3) |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Weighted average cost to service per loan | $ 68
Weighted Average | Significant Unobservable Inputs (Level 3) | Option adjusted spread |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Discount rate | 5.9
Discounted cash flows | Mortgage Servicing Rights | Significant Unobservable Inputs (Level 3) | Constant prepayment rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Fair Value | $ 1,033
Discounted cash flows | Minimum | Mortgage Servicing Rights | Significant Unobservable Inputs (Level 3) | Constant prepayment rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Range (Weighted Average) | 0
Discounted cash flows | Maximum | Mortgage Servicing Rights | Significant Unobservable Inputs (Level 3) | Constant prepayment rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Range (Weighted Average) | 10.0
Discounted cash flows | Weighted Average | Mortgage Servicing Rights | Significant Unobservable Inputs (Level 3) | Constant prepayment rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Range (Weighted Average) | 7.9
Consensus pricing | Rate Lock Commitments | Significant Unobservable Inputs (Level 3) | Origination pull-through rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Fair Value | $ (1)
Range (Weighted Average) | 76.41

X
- Definition Servicing asset at fair value amount net. + References No definition available. + Details
Name: | nycb_ServicingAssetAtFairValueAmountNet
Namespace Prefix: | nycb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Weighted Average Cost To Service Per Loan. + References No definition available. + Details
Name: | nycb_WeightedAverageCostToServicePerLoan
Namespace Prefix: | nycb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Value of input used to measure investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Value of input used to measure derivative asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_DerivativeAssetMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122625-111746 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 + Details
Name: | us-gaap_ServicingAssetAtFairValueAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Value of input used to measure servicing asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_ServicingAssetMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputOptionVolatilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=us-gaap_ValuationTechniqueDiscountedCashFlowMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=nycb_MortgageServicingRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputConstantPrepaymentRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=us-gaap_ValuationTechniqueConsensusPricingModelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_InterestRateLockCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |