XML 94 R76.htm IDEA: XBRL DOCUMENT
v3.24.0.1

BENEFITS PAYABLE - Narrative (Details) claim in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) claim | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Claims Development [Line Items] |  |  |
Total IBNR | $ | $ 6,600 | $ 5,700 |
Favorable medical claims reserve development related to prior fiscal years | $ | $ 872 | $ 415 | $ 825
2023 Claims Incurred Year |  |  |
Claims Development [Line Items] |  |  |
Cumulative number of reported claims | 200.0 |  |
2022 Claims Incurred Year |  |  |
Claims Development [Line Items] |  |  |
Cumulative number of reported claims | 182.4 |  |
2021 Claims Incurred Year |  |  |
Claims Development [Line Items] |  |  |
Cumulative number of reported claims | 173.7 |  |

X
- Definition Favorable medical claims reserve development related to prior fiscal years + References No definition available. + Details
Name: | hum_FavorableMedicalClaimsReserveDevelopmentRelatedToPriorFiscalYears
Namespace Prefix: | hum_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Liability For Unpaid Claims And Claims Adjustment Expense, Cumulative Number Of Claims, Reported + References No definition available. + Details
Name: | hum_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseCumulativeNumberOfClaimsReported
Namespace Prefix: | hum_
Data Type: | xbrli:integerItemType
Balance Type: | na
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_ClaimsDevelopmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Estimated costs as of the balance sheet date of settling insured claims and costs incurred in the claims settlement process for claims that have not yet been submitted to the insurance company for reimbursement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.W) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479583/944-40-S99-1 + Details
Name: | us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractAccidentYear2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractAccidentYear2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractAccidentYear2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |