XML 85 R66.htm IDEA: XBRL DOCUMENT v3.22.0.1

LOANS - Schedule of Industry and Rate Sensitivity (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	$ 1,968,991	$ 2,239,930
Computer Programming, Data Processing & Other Computer Related Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	437,257	483,142
Management & Public Relations Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	263,187	300,869
Industrial Inorganic Chemicals
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	156,292	156,391
Metal Cans & Shipping Containers
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	118,204	115,670
Public Warehousing & Storage
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	94,179	132,397
Miscellaneous Industrial & Commercial
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	93,619	77,163
Electronic Components & Accessories
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	92,261	78,129
Surgical, Medical & Dental Instruments & Supplies
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	80,786	83,161
Miscellaneous Health & Allied Services, not elsewhere classified
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	64,133	58,857
Research, Development & Testing Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	59,311	62,008
Offices & Clinics of Doctors of Medicine
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	50,017	104,781
Engineering, Architectural & Surveying
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	49,088	77,308
Insurance Agents, Brokers & Service
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	43,598	67,193
Electrical Work
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	42,617	41,128
Telephone Communications
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	42,589	58,450
Miscellaneous Equipment Rental & Leasing
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	32,346	49,587
Medical & Dental Laboratories
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	30,199	30,711
Home Health Care Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	28,660	28,587
Metal Forgings & Stampings
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	27,483	27,523
Legal Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	26,105	26,399
Petroleum & Petroleum Products
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	21,434	33,890
Sanitary Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	20,453	0
Grocery Stores
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	19,745	22,895
Coating, Engraving & Allied Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	17,705	19,484
Chemicals & Allied Products
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	14,657	14,686
Mailing, Reproduction, Commercial Art & Photography & Stenographic
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	12,388	12,733
Machinery, Equipment & Supplies
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	10,814	12,096
Offices & Clinics of Other Health Practitioners
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	10,083	9,730
Schools & Educational Services, not elsewhere classified
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	9,781	29,040
Miscellaneous Business Services
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	0	12,980
Drugs
Schedule of Held-to-maturity Securities [Line Items]
Corporate debt	$ 0	$ 12,942

X

- Definition

For an unclassified balance sheet, this item represents firm holdings in fixed income or other debt securities issued by a corporation or other issuer not elsewhere specified in the taxonomy, which are categorized as held-to-maturity. The held-to-maturity category is for those securities that the entity has the positive intent and ability to hold until maturity.

+ References

No definition available.

+ Details

Name:	nly_HeldToMaturitySecuritiesCorporateDebt
Namespace Prefix:	nly_
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_ScheduleOfHeldToMaturitySecuritiesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_ComputerProgrammingDataProcessingAndOtherComputerRelatedServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_ManagementAndPublicRelationsServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_IndustrialInorganicChemicalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_MetalCansAndShippingContainersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_PublicWarehousingAndStorageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_MiscellaneousIndustrialAndCommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_ElectronicComponentsAccessoriesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_SurgicalMedicalAndDentalInstrumentsAndSuppliesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_MiscellaneousHealthAndAlliedServicesNotElsewhereClassifiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_ResearchDevelopmentAndTestingServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_OfficesAndClinicsOfDoctorsOfMedicineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_EngineeringArchitecturalSurveyingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_InsuranceAgentsBrokersAndServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_ElectricalWorkMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_TelephoneCommunicationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_MiscellaneousEquipmentRentalAndLeasingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_MedicalAndDentalLaboratoriesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_HomeHealthCareServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_MetalForgingsAndStampingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_LegalServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_PetroleumAndPetroleumProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_SanitaryServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_GroceryStoresMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_CoatingEngravingandAlliedServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_ChemicalsAlliedProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_MailingReproductionCommercialArtAndPhotographyAndStenographicMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_MachineryEquipmentAndSuppliesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_OfficesAndClinicsOfHealthPractitionersNotElsewhereClassifiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_SchoolsAndEducationalServicesNotElsewhereClassifiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_MiscellaneousBusinessServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=nly_DrugsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: