XML 129 R85.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Reserve for Unpaid Losses and Loss Adjustment Expenses - GB Additional information (Details) - Group Benefits - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior incurral year development [1] | $ (189) | $ (133)
Disability Insurance Policy [Member] |  |
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior incurral year development [1] | 149 | 120
group life term, disability and accident [Member] |  |
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior incurral year development [1] | 37 | 8
Supplemental Health |  |
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior incurral year development [1] | $ 3 | $ 5

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_LiabilityForClaimsAndClaimsAdjustmentExpenseLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-3 + Details
Name: | us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_GroupPoliciesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | hig_ReserveLineAxis=us-gaap_DisabilityInsurancePolicyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | hig_ReserveLineAxis=hig_GrouplifetermdisabilityandaccidentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | hig_ReserveLineAxis=hig_SupplementalHealthMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |