XML 69 R59.htm IDEA: XBRL DOCUMENT v3.25.1

Loans and Leases - Loan Modification Subsequently Defaulted (Details) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 11
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	7
Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	1
Combination - Interest Rate Reduction and Term/Payment Extension/Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	3
Loans and Leases Held for Investment: | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	4
Loans and Leases Held for Investment: | Commercial real estate | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	4
Loans and Leases Held for Investment: | Commercial real estate | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Loans and Leases Held for Investment: | Commercial real estate | Combination - Interest Rate Reduction and Term/Payment Extension/Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Loans and Leases Held for Investment: | One-to-four family first mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	7
Loans and Leases Held for Investment: | One-to-four family first mortgage | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	3
Loans and Leases Held for Investment: | One-to-four family first mortgage | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	1
Loans and Leases Held for Investment: | One-to-four family first mortgage | Combination - Interest Rate Reduction and Term/Payment Extension/Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 3

X

- Definition

Amortized cost excluding accrued interest, of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 44
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-44

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefault
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-34

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-33

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

+ Details

Name:	us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_PrincipalForgivenessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityAndInterestRateReductionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fbc_CommercialRealEstateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fbc_OneToFourFamilyFirstMortgageLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: