XML 135 R123.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Fair Value Measures - Financial Instruments Carried at Fair Value (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Assets: |  |
Total debt securities available for sale | $ 9,145 | $ 9,060
Loans held-for-sale | 902 | 1,115
Total debt securities available for sale |  |
Assets: |  |
Total debt securities available for sale | 9,145 | 9,060
Mortgage-related Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 6,563 | 4,789
GSE certificates |  |
Assets: |  |
Total debt securities available for sale | 1,221 | 1,297
GSE CMOs |  |
Assets: |  |
Total debt securities available for sale | 5,162 | 3,301
Private Label CMOs |  |
Assets: |  |
Total debt securities available for sale | 180 | 191
Other Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 2,582 | 4,271
U. S. Treasury obligations |  |
Assets: |  |
Total debt securities available for sale | 198 | 1,487
GSE debentures |  |
Assets: |  |
Total debt securities available for sale | 1,609 | 1,398
Asset-backed securities |  |
Assets: |  |
Total debt securities available for sale | 302 | 361
Municipal bonds |  |
Assets: |  |
Total debt securities available for sale | 6 | 30
Corporate bonds |  |
Assets: |  |
Total debt securities available for sale | 343 | 885
Foreign notes |  |
Assets: |  |
Total debt securities available for sale | 34 | 20
Capital trust notes |  |
Assets: |  |
Total debt securities available for sale | 90 | 90
Recurring |  |
Assets: |  |
Fair Value | 9,159 | 9,074
Mortgage servicing rights | 1,111 | 1,033
Total assets at fair value | 11,310 | 11,451
Liabilities: |  |
Total liabilities at fair value | 95 | 136
Recurring | Acquisition, development, and construction |  |
Assets: |  |
Loans held-for-sale | 123 |
Recurring | Commercial and industrial |  |
Assets: |  |
Loans held-for-sale | 9 |
Recurring | Mortgage Loans | Residential first mortgage loans |  |
Assets: |  |
Loans held-for-sale | 770 | 1,115
Recurring | Interest rate swaps and swaptions |  |
Assets: |  |
Derivative assets | 115 | 182
Liabilities: |  |
Derivative liabilities | 59 | 65
Recurring | Futures |  |
Assets: |  |
Derivative assets | 0 | 2
Liabilities: |  |
Derivative liabilities | 1 |
Recurring | Rate lock commitments (fallout-adjusted) |  |
Assets: |  |
Derivative assets | 12 | 9
Liabilities: |  |
Derivative liabilities | 3 | 10
Recurring | Mortgage-backed securities forwards |  |
Assets: |  |
Derivative assets | 11 | 36
Liabilities: |  |
Derivative liabilities | 32 | 61
Recurring | Total debt securities available for sale |  |
Assets: |  |
Total debt securities available for sale | 9,145 | 9,060
Recurring | Mortgage-related Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 6,563 | 4,789
Recurring | GSE certificates |  |
Assets: |  |
Total debt securities available for sale | 1,221 | 1,297
Recurring | GSE CMOs |  |
Assets: |  |
Total debt securities available for sale | 5,162 | 3,301
Recurring | Private Label CMOs |  |
Assets: |  |
Total debt securities available for sale | 180 | 191
Recurring | Other Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 2,582 | 4,271
Recurring | U. S. Treasury obligations |  |
Assets: |  |
Total debt securities available for sale | 198 | 1,487
Recurring | GSE debentures |  |
Assets: |  |
Total debt securities available for sale | 1,609 | 1,398
Recurring | Asset-backed securities |  |
Assets: |  |
Total debt securities available for sale | 302 | 361
Recurring | Municipal bonds |  |
Assets: |  |
Total debt securities available for sale | 6 | 30
Recurring | Corporate bonds |  |
Assets: |  |
Total debt securities available for sale | 343 | 885
Recurring | Foreign notes |  |
Assets: |  |
Total debt securities available for sale | 34 | 20
Recurring | Capital trust notes |  |
Assets: |  |
Total debt securities available for sale | 90 | 90
Recurring | Equity securities: |  |
Assets: |  |
Equity securities: | 14 | 14
Recurring | Mutual funds |  |
Assets: |  |
Equity securities: | 14 | 14
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Assets: |  |
Fair Value | 198 | 1,487
Mortgage servicing rights | 0 | 0
Total assets at fair value | 198 | 1,487
Liabilities: |  |
Total liabilities at fair value | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Acquisition, development, and construction |  |
Assets: |  |
Loans held-for-sale | 0 |
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial and industrial |  |
Assets: |  |
Loans held-for-sale | 0 |
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage Loans | Residential first mortgage loans |  |
Assets: |  |
Loans held-for-sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate swaps and swaptions |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Futures |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 |
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Rate lock commitments (fallout-adjusted) |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities forwards |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Total debt securities available for sale |  |
Assets: |  |
Total debt securities available for sale | 198 | 1,487
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-related Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | GSE certificates |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | GSE CMOs |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Private Label CMOs |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 198 | 1,487
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U. S. Treasury obligations |  |
Assets: |  |
Total debt securities available for sale | 198 | 1,487
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | GSE debentures |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal bonds |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate bonds |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign notes |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Capital trust notes |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity securities: |  |
Assets: |  |
Equity securities: | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual funds |  |
Assets: |  |
Equity securities: | 0 | 0
Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets: |  |
Fair Value | 8,929 | 7,587
Mortgage servicing rights | 0 | 0
Total assets at fair value | 9,957 | 8,922
Liabilities: |  |
Total liabilities at fair value | 92 | 126
Recurring | Significant Other Observable Inputs (Level 2) | Acquisition, development, and construction |  |
Assets: |  |
Loans held-for-sale | 123 |
Recurring | Significant Other Observable Inputs (Level 2) | Commercial and industrial |  |
Assets: |  |
Loans held-for-sale | 9 |
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage Loans | Residential first mortgage loans |  |
Assets: |  |
Loans held-for-sale | 770 | 1,115
Recurring | Significant Other Observable Inputs (Level 2) | Interest rate swaps and swaptions |  |
Assets: |  |
Derivative assets | 115 | 182
Liabilities: |  |
Derivative liabilities | 59 | 65
Recurring | Significant Other Observable Inputs (Level 2) | Futures |  |
Assets: |  |
Derivative assets | 0 | 2
Liabilities: |  |
Derivative liabilities | 1 |
Recurring | Significant Other Observable Inputs (Level 2) | Rate lock commitments (fallout-adjusted) |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities forwards |  |
Assets: |  |
Derivative assets | 11 | 36
Liabilities: |  |
Derivative liabilities | 32 | 61
Recurring | Significant Other Observable Inputs (Level 2) | Total debt securities available for sale |  |
Assets: |  |
Total debt securities available for sale | 8,915 | 7,573
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-related Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 6,531 | 4,789
Recurring | Significant Other Observable Inputs (Level 2) | GSE certificates |  |
Assets: |  |
Total debt securities available for sale | 1,221 | 1,297
Recurring | Significant Other Observable Inputs (Level 2) | GSE CMOs |  |
Assets: |  |
Total debt securities available for sale | 5,162 | 3,301
Recurring | Significant Other Observable Inputs (Level 2) | Private Label CMOs |  |
Assets: |  |
Total debt securities available for sale | 148 | 191
Recurring | Significant Other Observable Inputs (Level 2) | Other Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 2,384 | 2,784
Recurring | Significant Other Observable Inputs (Level 2) | U. S. Treasury obligations |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Other Observable Inputs (Level 2) | GSE debentures |  |
Assets: |  |
Total debt securities available for sale | 1,609 | 1,398
Recurring | Significant Other Observable Inputs (Level 2) | Asset-backed securities |  |
Assets: |  |
Total debt securities available for sale | 302 | 361
Recurring | Significant Other Observable Inputs (Level 2) | Municipal bonds |  |
Assets: |  |
Total debt securities available for sale | 6 | 30
Recurring | Significant Other Observable Inputs (Level 2) | Corporate bonds |  |
Assets: |  |
Total debt securities available for sale | 343 | 885
Recurring | Significant Other Observable Inputs (Level 2) | Foreign notes |  |
Assets: |  |
Total debt securities available for sale | 34 | 20
Recurring | Significant Other Observable Inputs (Level 2) | Capital trust notes |  |
Assets: |  |
Total debt securities available for sale | 90 | 90
Recurring | Significant Other Observable Inputs (Level 2) | Equity securities: |  |
Assets: |  |
Equity securities: | 14 | 14
Recurring | Significant Other Observable Inputs (Level 2) | Mutual funds |  |
Assets: |  |
Equity securities: | 14 | 14
Recurring | Significant Unobservable Inputs (Level 3) |  |
Assets: |  |
Fair Value | 32 | 0
Mortgage servicing rights | 1,111 | 1,033
Total assets at fair value | 1,155 | 1,042
Liabilities: |  |
Total liabilities at fair value | 3 | 10
Recurring | Significant Unobservable Inputs (Level 3) | Acquisition, development, and construction |  |
Assets: |  |
Loans held-for-sale | 0 |
Recurring | Significant Unobservable Inputs (Level 3) | Commercial and industrial |  |
Assets: |  |
Loans held-for-sale | 0 |
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage Loans | Residential first mortgage loans |  |
Assets: |  |
Loans held-for-sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Interest rate swaps and swaptions |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Futures |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 |
Recurring | Significant Unobservable Inputs (Level 3) | Rate lock commitments (fallout-adjusted) |  |
Assets: |  |
Derivative assets | 12 | 9
Liabilities: |  |
Derivative liabilities | 3 | 10
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities forwards |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Total debt securities available for sale |  |
Assets: |  |
Total debt securities available for sale | 32 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-related Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 32 | 0
Recurring | Significant Unobservable Inputs (Level 3) | GSE certificates |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | GSE CMOs |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Private Label CMOs |  |
Assets: |  |
Total debt securities available for sale | 32 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Other Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | U. S. Treasury obligations |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | GSE debentures |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Asset-backed securities |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Municipal bonds |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Corporate bonds |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Foreign notes |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Capital trust notes |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Equity securities: |  |
Assets: |  |
Equity securities: | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Mutual funds |  |
Assets: |  |
Equity securities: | $ 0 | $ 0

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount excluding accrued interest, of 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/2009/role/commonPracticeRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-12 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 55 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480493/946-210-55-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-1 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-1 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-1 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(3)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5C -Subparagraph (SX 210.12-13C(Column H)(Footnote 7)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5C Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(3)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SX 210.12-13(Column A)(Footnote 3)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5C -Subparagraph (SX 210.12-13C(Column H)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5C Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5A -Subparagraph (SX 210.12-13A(Column E)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5A Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5B -Subparagraph (SX 210.12-13B(Column E)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5B Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5B -Subparagraph (SX 210.12-13B(Column E)(Footnote 4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5B Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483466/210-20-50-3 Reference 22: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483444/210-20-55-22 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483444/210-20-55-10 Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-10 + Details
Name: | us-gaap_DerivativeAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-1 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480524/946-210-50-6 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(9)(e)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5C -Subparagraph (SX 210.12-13C(Column H)(Footnote 7)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5C Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(9)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(9)(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SX 210.12-13(Column G)(Footnote 8)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5C -Subparagraph (SX 210.12-13C(Column H)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5C Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SX 210.12-13(Column G)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5A -Subparagraph (SX 210.12-13A(Column E)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5A Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5B -Subparagraph (SX 210.12-13B(Column E)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5B Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5B -Subparagraph (SX 210.12-13B(Column E)(Footnote 4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5B Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483466/210-20-50-3 Reference 22: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483444/210-20-55-22 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483444/210-20-55-10 Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-10 + Details
Name: | us-gaap_DerivativeLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482736/825-10-45-1A + Details
Name: | us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables. + References No definition available. + Details
Name: | us-gaap_LoansHeldForSaleFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in marketable security. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
Name: | us-gaap_MarketableSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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 -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481229/860-50-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481260/860-50-45-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481260/860-50-45-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481260/860-50-45-2 + Details
Name: | us-gaap_ServicingAssetAtFairValueAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=fbc_InterestRateSwapsandSwaptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_FutureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_MortgageBackedSecuritiesOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
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: |