XML 61 R51.htm IDEA: XBRL DOCUMENT v3.21.2

Loans and Leases - Schedule of Credit Quality Indicator, Loan Class and Year of Origination the Amortized Cost Basis of Loans And Leases (Details) $ in Millions	Jun. 30, 2021 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	$ 43,575
Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	39,758
Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,817
2021
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,909
2021 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,297
2021 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	612
2020
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	10,506
2020 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	9,573
2020 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	933
2019
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	7,136
2019 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	6,501
2019 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	635
2018
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	5,866
2018 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	5,725
2018 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	141
2017
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,080
2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,888
2017 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	192
Prior to 2017
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	9,984
Prior to 2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	9,753
Prior to 2017 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	231
Revolving Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1,094
Revolving Loans | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	21
Revolving Loans | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1,073
Pass | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	37,330
Pass | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,760
Pass | 2021 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	4,297
Pass | 2021 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	612
Pass | 2020 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	9,536
Pass | 2020 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	931
Pass | 2019 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	6,159
Pass | 2019 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	632
Pass | 2018 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	5,305
Pass | 2018 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	139
Pass | 2017
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3,630
Pass | 2017 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	184
Pass | Prior to 2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	8,383
Pass | Prior to 2017 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	217
Pass | Revolving Loans | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	20
Pass | Revolving Loans | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1,045
Special Mention | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1,578
Special Mention | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	2
Special Mention | 2020 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	30
Special Mention | 2019 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	272
Special Mention | 2018 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	194
Special Mention | 2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	138
Special Mention | Prior to 2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	944
Special Mention | Revolving Loans | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	2
Substandard | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	850
Substandard | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	55
Substandard | 2020 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	7
Substandard | 2020 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	2
Substandard | 2019 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	70
Substandard | 2019 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	3
Substandard | 2018 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	226
Substandard | 2018 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	2
Substandard | 2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	120
Substandard | 2017 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	8
Substandard | Prior to 2017 | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	426
Substandard | Prior to 2017 | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	14
Substandard | Revolving Loans | Mortgage Receivable
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	1
Substandard | Revolving Loans | Other Loans
Financing Receivable, Recorded Investment [Line Items]
Loans and lease receivable amortized cost basis	$ 26

X

- Definition

Loans and lease receivable amortized cost basis.

+ References

No definition available.

+ Details

Name:	nycb_LoansAndLeaseReceivableAmortizedCostBasis
Namespace Prefix:	nycb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_MortgageReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=nycb_OtherLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nycb_LoanOriginationYearAxis=nycb_TwoThousandTwentyOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nycb_LoanOriginationYearAxis=nycb_TwoThousandTwentyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nycb_LoanOriginationYearAxis=nycb_TwoThousandNineteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nycb_LoanOriginationYearAxis=nycb_TwoThousandEighteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nycb_LoanOriginationYearAxis=nycb_TwoThousandSeventeenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nycb_LoanOriginationYearAxis=nycb_PriorToTwoThousandSeventeenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	nycb_LoanOriginationYearAxis=nycb_RevolvingLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: