XML 23 R104.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

CAPITAL STOCK - Schedule of Preferred Stock (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Class of Stock [Line Items] |  |
Preferred Stock, shares authorized (in shares) | 85,150,000 | 75,950,000
Preferred stock, shares issued (in shares) | 81,900,000 | 73,400,000
Preferred Stock, shares outstanding (in shares) | 81,900,000 | 73,400,000
Preferred Stock, carrying value | $ 1,982,026 | $ 1,778,168
Series C Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred Stock, shares authorized (in shares) | 0 | 7,000,000
Preferred stock, shares issued (in shares) | 0 | 7,000,000
Preferred Stock, shares outstanding (in shares) | 0 | 7,000,000
Preferred Stock, carrying value | $ 0 | $ 169,466
Preferred Stock, contractual rate | 7.625% |
Series D Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred Stock, shares authorized (in shares) | 18,400,000 | 18,400,000
Preferred stock, shares issued (in shares) | 18,400,000 | 18,400,000
Preferred Stock, shares outstanding (in shares) | 18,400,000 | 18,400,000
Preferred Stock, carrying value | $ 445,457 | $ 445,457
Preferred Stock, contractual rate | 7.50% |
Series H Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred Stock, shares authorized (in shares) | 0 | 2,200,000
Preferred stock, shares issued (in shares) | 0 | 2,200,000
Preferred Stock, shares outstanding (in shares) | 0 | 2,200,000
Preferred Stock, carrying value | $ 0 | $ 55,000
Preferred Stock, contractual rate | 8.125% |
Series F Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred Stock, shares authorized (in shares) | 28,800,000 | 28,800,000
Preferred stock, shares issued (in shares) | 28,800,000 | 28,800,000
Preferred Stock, shares outstanding (in shares) | 28,800,000 | 28,800,000
Preferred Stock, carrying value | $ 696,910 | $ 696,910
Preferred Stock, contractual rate | 6.95% |
Preferred Stock, floating annual rate | 4.993% |
Series G Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred Stock, shares authorized (in shares) | 19,550,000 | 19,550,000
Preferred stock, shares issued (in shares) | 17,000,000 | 17,000,000.0
Preferred Stock, shares outstanding (in shares) | 17,000,000 | 17,000,000
Preferred Stock, carrying value | $ 411,335 | $ 411,335
Preferred Stock, contractual rate | 6.50% | 6.50%
Preferred Stock, floating annual rate | 4.172% |
Series I Preferred Stock |  |
Class of Stock [Line Items] |  |
Preferred Stock, shares authorized (in shares) | 18,400,000 | 0
Preferred stock, shares issued (in shares) | 17,700,000 | 0
Preferred Stock, shares outstanding (in shares) | 17,700,000 | 0
Preferred Stock, carrying value | $ 428,324 | $ 0
Preferred Stock, contractual rate | 6.75% |
Preferred Stock, floating annual rate | 4.989% |

X
- Definition Preferred Stock, Dividend Rate, Percentage, Basis Spread + References No definition available. + Details
Name: | nly_PreferredStockDividendRatePercentageBasisSpread
Namespace Prefix: | nly_
Data Type: | num:percentItemType
Balance Type: | na
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 No definition available. + Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PreferredStockSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PreferredStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PreferredStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PreferredStockValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesCPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesDPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesHPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesFPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesGPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=nly_SeriesIPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |