XML 110 R69.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Derivative Instruments - Derivatives - Fair Value Hedges - Non-qualifying Strategies (Details) - Not Designated as Hedging Instrument - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Non-qualifying foreign currency derivatives | $ 9 | $ (1) | $ 8 | $ (7)
Total other non-qualifying derivatives |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Non-qualifying foreign currency derivatives | 8 | (1) | 6 | 7
Foreign currency swaps and forwards |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Non-qualifying foreign currency derivatives | 1 | 0 | 2 | (14)
Interest rate swaps, swaptions, and futures |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Non-qualifying foreign currency derivatives | 1 | (4) | 7 | (6)
Credit derivatives that assume credit risk | Credit derivatives that purchase credit protection |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Non-qualifying foreign currency derivatives | 0 | 8 | 0 | 26
Credit derivatives that assume credit risk | Credit derivatives that assume credit risk |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Non-qualifying foreign currency derivatives | 8 | (2) | 0 | (9)
Equity Options |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Non-qualifying foreign currency derivatives | (1) | (3) | (1) | (3)
Contingent capital facility put option |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Non-qualifying foreign currency derivatives | $ 0 | $ 0 | $ 0 | $ (1)

X
- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
Name: | us-gaap_DerivativeGainLossOnDerivativeNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditDerivativesByContractTypeAxis=us-gaap_OtherCreditDerivativesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | us-gaap_CreditDerivativesByContractTypeAxis=us-gaap_CreditDefaultSwapBuyingProtectionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditDerivativesByContractTypeAxis=us-gaap_CreditDefaultSwapSellingProtectionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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