XML 63 R53.htm IDEA: XBRL DOCUMENT
v3.21.2

Loans and Leases - Information Regarding Troubled Debt Restructurings (Details) - Non-Covered Loans - USD ($) $ in Millions | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructurings |  | $ 31 | $ 34
Multi-Family |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 7 |
Commercial Real Estate |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 15 | 15
Commercial and Industrial |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructurings | [1] | 9 | 19
Accruing |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 15 | 15
Accruing | Commercial Real Estate |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 15 | 15
Non-Accrual |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 16 | 19
Non-Accrual | Multi-Family |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructurings |  | 7 |
Non-Accrual | Commercial and Industrial |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Troubled debt restructurings | [1] | $ 9 | $ 19
[1] | Includes $9 million and $18 million of taxi medallion-related loans at June 30, 2021 and December 31, 2020, respectively

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_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialAndIndustrialSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=nycb_AccrualLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=nycb_NonAccrualLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |