10-Q Filing

HUMANA INC CIK: 49071 Q2 2025

Filing Information

Form Type	10-Q
Accession Number	`0000049071-25-000042`
Period End Date	20250630
Filing Date	20250730
Fiscal Year	2025
Fiscal Period	Q2
XBRL Instance	hum-20250630_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 168 Income Statement 152 Cash Flow Statement 194 Stockholders Equity 80 Comprehensive Income 72

Balance Sheet 168 line items

Line Item	Tag	Value	Unit	Period
Receivables, net of allowances	`AllowanceForDoubtfulAccountsReceivableCurrent`	$98.00M	USD	Point-in-time
Receivables, net of allowances	`AllowanceForDoubtfulAccountsReceivableCurrent`	$98.00M	USD	Point-in-time
Receivables, net of allowances	`AllowanceForDoubtfulAccountsReceivableCurrent`	$143.00M	USD	Point-in-time
Receivables, net of allowances	`AllowanceForDoubtfulAccountsReceivableCurrent`	$143.00M	USD	Point-in-time
Preferred stock, par (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Preferred stock, par (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Preferred stock, par (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Preferred stock, par (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$2.22B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$2.22B	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$4.04B	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$4.04B	USD	Point-in-time
Preferred stock, shares authorized (in shares)	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, shares issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Investment securities	`ShortTermInvestments`	$17.67B	USD	Point-in-time
Investment securities	`ShortTermInvestments`	$18.21B	USD	Point-in-time
Investment securities	`ShortTermInvestments`	$17.67B	USD	Point-in-time
Investment securities	`ShortTermInvestments`	$18.21B	USD	Point-in-time
Receivables, net of allowances of $143 in 2025 and $98 in 2024	`ReceivablesNetCurrent`	$2.70B	USD	Point-in-time
Receivables, net of allowances of $143 in 2025 and $98 in 2024	`ReceivablesNetCurrent`	$2.70B	USD	Point-in-time
Receivables, net of allowances of $143 in 2025 and $98 in 2024	`ReceivablesNetCurrent`	$4.50B	USD	Point-in-time
Receivables, net of allowances of $143 in 2025 and $98 in 2024	`ReceivablesNetCurrent`	$4.50B	USD	Point-in-time
Common stock, par (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.17	USD	Point-in-time
Common stock, par (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.17	USD	Point-in-time
Common stock, par (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.17	USD	Point-in-time
Common stock, par (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.17	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$7.40B	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Other current assets	`OtherAssetsCurrent`	$7.40B	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Other current assets	`OtherAssetsCurrent`	$6.68B	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Other current assets	`OtherAssetsCurrent`	$6.68B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$29.82B	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	198.72M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	198.72M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	198.72M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	198.72M	shares	Point-in-time
Total current assets	`AssetsCurrent`	$33.62B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$33.62B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$29.82B	USD	Point-in-time
Treasury stock, shares (in shares)	`TreasuryStockCommonShares`	78.45M	shares	Point-in-time
Treasury stock, shares (in shares)	`TreasuryStockCommonShares`	78.45M	shares	Point-in-time
Property and equipment, net	`PropertyPlantAndEquipmentNet`	$2.36B	USD	Point-in-time
Property and equipment, net	`PropertyPlantAndEquipmentNet`	$2.36B	USD	Point-in-time
Property and equipment, net	`PropertyPlantAndEquipmentNet`	$2.53B	USD	Point-in-time
Treasury stock, shares (in shares)	`TreasuryStockCommonShares`	78.08M	shares	Point-in-time
Property and equipment, net	`PropertyPlantAndEquipmentNet`	$2.53B	USD	Point-in-time
Treasury stock, shares (in shares)	`TreasuryStockCommonShares`	78.08M	shares	Point-in-time
Long-term investment securities	`AvailableForSaleSecuritiesDebtSecuritiesNoncurrent`	$431.00M	USD	Point-in-time
Long-term investment securities	`AvailableForSaleSecuritiesDebtSecuritiesNoncurrent`	$431.00M	USD	Point-in-time
Long-term investment securities	`AvailableForSaleSecuritiesDebtSecuritiesNoncurrent`	$421.00M	USD	Point-in-time
Long-term investment securities	`AvailableForSaleSecuritiesDebtSecuritiesNoncurrent`	$421.00M	USD	Point-in-time
Equity method investments	`EquityMethodInvestments`	$636.00M	USD	Point-in-time
Equity method investments	`EquityMethodInvestments`	$636.00M	USD	Point-in-time
Equity method investments	`EquityMethodInvestments`	$697.00M	USD	Point-in-time
Equity method investments	`EquityMethodInvestments`	$697.00M	USD	Point-in-time
Goodwill	`Goodwill`	$9.63B	USD	Point-in-time
Goodwill	`Goodwill`	$9.63B	USD	Point-in-time
Goodwill	`Goodwill`	$9.63B	USD	Point-in-time
Goodwill	`Goodwill`	$9.63B	USD	Point-in-time
Other long-term assets	`OtherAssetsNoncurrent`	$3.38B	USD	Point-in-time
Other long-term assets	`OtherAssetsNoncurrent`	$3.38B	USD	Point-in-time
Other long-term assets	`OtherAssetsNoncurrent`	$3.69B	USD	Point-in-time
Other long-term assets	`OtherAssetsNoncurrent`	$3.69B	USD	Point-in-time
Total assets	`Assets`	$46.48B	USD	Point-in-time
Total assets	`Assets`	$50.36B	USD	Point-in-time
Total assets	`Assets`	$50.36B	USD	Point-in-time
Total assets	`Assets`	$46.48B	USD	Point-in-time
Benefits payable	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$10.44B	USD	Point-in-time
Benefits payable	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$11.45B	USD	Point-in-time
Benefits payable	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$10.44B	USD	Point-in-time
Benefits payable	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$11.45B	USD	Point-in-time
Benefits payable	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$10.24B	USD	Point-in-time
Benefits payable	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$11.06B	USD	Point-in-time
Benefits payable	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$11.06B	USD	Point-in-time
Benefits payable	`LiabilityForClaimsAndClaimsAdjustmentExpense`	$10.24B	USD	Point-in-time
Trade accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$5.26B	USD	Point-in-time
Trade accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$5.26B	USD	Point-in-time
Trade accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$5.59B	USD	Point-in-time
Trade accounts payable and accrued expenses	`AccountsPayableAndAccruedLiabilitiesCurrent`	$5.59B	USD	Point-in-time
Book overdraft	`BookOverdraftLiability`	$298.00M	USD	Point-in-time
Book overdraft	`BookOverdraftLiability`	$298.00M	USD	Point-in-time
Book overdraft	`BookOverdraftLiability`	$403.00M	USD	Point-in-time
Book overdraft	`BookOverdraftLiability`	$403.00M	USD	Point-in-time
Unearned revenues	`ContractWithCustomerLiabilityCurrent`	$274.00M	USD	Point-in-time
Unearned revenues	`ContractWithCustomerLiabilityCurrent`	$274.00M	USD	Point-in-time
Unearned revenues	`ContractWithCustomerLiabilityCurrent`	$260.00M	USD	Point-in-time
Unearned revenues	`ContractWithCustomerLiabilityCurrent`	$260.00M	USD	Point-in-time
Short-term debt	`DebtCurrent`	-	USD	Point-in-time
Short-term debt	`DebtCurrent`	-	USD	Point-in-time
Short-term debt	`DebtCurrent`	$577.00M	USD	Point-in-time
Short-term debt	`DebtCurrent`	$577.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$17.22B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$17.22B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$16.94B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$16.94B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$12.59B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$12.59B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$11.14B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$11.14B	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$1.95B	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$2.26B	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$2.26B	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$1.95B	USD	Point-in-time
Total liabilities	`Liabilities`	$30.03B	USD	Point-in-time
Total liabilities	`Liabilities`	$30.03B	USD	Point-in-time
Total liabilities	`Liabilities`	$32.06B	USD	Point-in-time
Total liabilities	`Liabilities`	$32.06B	USD	Point-in-time
Commitments and Contingencies (Note 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies (Note 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies (Note 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies (Note 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock, $1 par; 10,000,000 shares authorized; none issued	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, $1 par; 10,000,000 shares authorized; none issued	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, $1 par; 10,000,000 shares authorized; none issued	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, $1 par; 10,000,000 shares authorized; none issued	`PreferredStockValue`	-	USD	Point-in-time
Common stock, $0.16 2/3 par; 300,000,000 shares authorized; 198,719,321 shares issued at June 30, 2025 and 198,718,810 shares issued at December 31, 2024	`CommonStockValue`	$33.00M	USD	Point-in-time
Common stock, $0.16 2/3 par; 300,000,000 shares authorized; 198,719,321 shares issued at June 30, 2025 and 198,718,810 shares issued at December 31, 2024	`CommonStockValue`	$33.00M	USD	Point-in-time
Common stock, $0.16 2/3 par; 300,000,000 shares authorized; 198,719,321 shares issued at June 30, 2025 and 198,718,810 shares issued at December 31, 2024	`CommonStockValue`	$33.00M	USD	Point-in-time
Common stock, $0.16 2/3 par; 300,000,000 shares authorized; 198,719,321 shares issued at June 30, 2025 and 198,718,810 shares issued at December 31, 2024	`CommonStockValue`	$33.00M	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$3.46B	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$3.46B	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$3.56B	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$3.56B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$28.32B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$28.32B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$29.89B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$29.89B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-1.07B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-1.07B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-783.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-783.00M	USD	Point-in-time
Treasury stock, at cost, 78,447,502 shares at June 30, 2025 and 78,077,195 shares at December 31, 2024	`TreasuryStockCommonValue`	$14.46B	USD	Point-in-time
Treasury stock, at cost, 78,447,502 shares at June 30, 2025 and 78,077,195 shares at December 31, 2024	`TreasuryStockCommonValue`	$14.46B	USD	Point-in-time
Treasury stock, at cost, 78,447,502 shares at June 30, 2025 and 78,077,195 shares at December 31, 2024	`TreasuryStockCommonValue`	$14.37B	USD	Point-in-time
Treasury stock, at cost, 78,447,502 shares at June 30, 2025 and 78,077,195 shares at December 31, 2024	`TreasuryStockCommonValue`	$14.37B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$16.38B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$16.38B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$18.23B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$18.23B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$61.00M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$61.00M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$70.00M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$70.00M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.32B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.19B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.19B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.82B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.82B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.73B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.32B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.73B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$18.30B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$18.30B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$46.48B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$50.36B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$46.48B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$50.36B	USD	Point-in-time

Income Statement 152 line items

Line Item	Tag	Value	Unit	Period
Premiums	`PremiumsEarnedNet`	$30.72B	USD	1 Quarter
Premiums	`PremiumsEarnedNet`	$30.72B	USD	1 Quarter
Premiums	`PremiumsEarnedNet`	$61.23B	USD	2 Qtrs
Premiums	`PremiumsEarnedNet`	$61.23B	USD	2 Qtrs
Premiums	`PremiumsEarnedNet`	$28.14B	USD	1 Quarter
Premiums	`PremiumsEarnedNet`	$28.14B	USD	1 Quarter
Premiums	`PremiumsEarnedNet`	$56.40B	USD	2 Qtrs
Premiums	`PremiumsEarnedNet`	$56.40B	USD	2 Qtrs
Services	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.10B	USD	1 Quarter
Services	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.10B	USD	1 Quarter
Services	`RevenueFromContractWithCustomerIncludingAssessedTax`	$2.73B	USD	2 Qtrs
Services	`RevenueFromContractWithCustomerIncludingAssessedTax`	$2.73B	USD	2 Qtrs
Services	`RevenueFromContractWithCustomerIncludingAssessedTax`	$2.16B	USD	2 Qtrs
Services	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.40B	USD	1 Quarter
Services	`RevenueFromContractWithCustomerIncludingAssessedTax`	$2.16B	USD	2 Qtrs
Services	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.40B	USD	1 Quarter
Investment income	`InvestmentIncomeInterestAndDividend`	$272.00M	USD	1 Quarter
Investment income	`InvestmentIncomeInterestAndDividend`	$536.00M	USD	2 Qtrs
Investment income	`InvestmentIncomeInterestAndDividend`	$536.00M	USD	2 Qtrs
Investment income	`InvestmentIncomeInterestAndDividend`	$272.00M	USD	1 Quarter
Investment income	`InvestmentIncomeInterestAndDividend`	$586.00M	USD	2 Qtrs
Investment income	`InvestmentIncomeInterestAndDividend`	$298.00M	USD	1 Quarter
Investment income	`InvestmentIncomeInterestAndDividend`	$586.00M	USD	2 Qtrs
Investment income	`InvestmentIncomeInterestAndDividend`	$298.00M	USD	1 Quarter
Total revenues	`Revenues`	$64.50B	USD	2 Qtrs
Total revenues	`Revenues`	$64.50B	USD	2 Qtrs
Total revenues	`Revenues`	$29.54B	USD	1 Quarter
Total revenues	`Revenues`	$29.54B	USD	1 Quarter
Total revenues	`Revenues`	$59.15B	USD	2 Qtrs
Total revenues	`Revenues`	$59.15B	USD	2 Qtrs
Total revenues	`Revenues`	$32.39B	USD	1 Quarter
Total revenues	`Revenues`	$32.39B	USD	1 Quarter
Benefits	`PolicyholderBenefitsAndClaimsIncurredNet`	$27.57B	USD	1 Quarter
Benefits	`PolicyholderBenefitsAndClaimsIncurredNet`	$27.57B	USD	1 Quarter
Benefits	`PolicyholderBenefitsAndClaimsIncurredNet`	$25.04B	USD	1 Quarter
Benefits	`PolicyholderBenefitsAndClaimsIncurredNet`	$25.04B	USD	1 Quarter
Benefits	`PolicyholderBenefitsAndClaimsIncurredNet`	$54.10B	USD	2 Qtrs
Benefits	`PolicyholderBenefitsAndClaimsIncurredNet`	$54.10B	USD	2 Qtrs
Benefits	`PolicyholderBenefitsAndClaimsIncurredNet`	$50.16B	USD	2 Qtrs
Benefits	`PolicyholderBenefitsAndClaimsIncurredNet`	$50.16B	USD	2 Qtrs
Operating costs	`SellingGeneralAndAdministrativeExpense`	$6.93B	USD	2 Qtrs
Operating costs	`SellingGeneralAndAdministrativeExpense`	$6.93B	USD	2 Qtrs
Operating costs	`SellingGeneralAndAdministrativeExpense`	$6.19B	USD	2 Qtrs
Operating costs	`SellingGeneralAndAdministrativeExpense`	$6.19B	USD	2 Qtrs
Operating costs	`SellingGeneralAndAdministrativeExpense`	$3.15B	USD	1 Quarter
Operating costs	`SellingGeneralAndAdministrativeExpense`	$3.15B	USD	1 Quarter
Operating costs	`SellingGeneralAndAdministrativeExpense`	$3.55B	USD	1 Quarter
Operating costs	`SellingGeneralAndAdministrativeExpense`	$3.55B	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$361.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$212.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$212.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$361.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$178.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$421.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$421.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$178.00M	USD	1 Quarter
Total operating expenses	`BenefitsLossesAndExpenses`	$31.29B	USD	1 Quarter
Total operating expenses	`BenefitsLossesAndExpenses`	$56.77B	USD	2 Qtrs
Total operating expenses	`BenefitsLossesAndExpenses`	$56.77B	USD	2 Qtrs
Total operating expenses	`BenefitsLossesAndExpenses`	$31.29B	USD	1 Quarter
Total operating expenses	`BenefitsLossesAndExpenses`	$28.40B	USD	1 Quarter
Total operating expenses	`BenefitsLossesAndExpenses`	$61.39B	USD	2 Qtrs
Total operating expenses	`BenefitsLossesAndExpenses`	$61.39B	USD	2 Qtrs
Total operating expenses	`BenefitsLossesAndExpenses`	$28.40B	USD	1 Quarter
Income (loss) from operations	`OperatingIncomeLoss`	$3.11B	USD	2 Qtrs
Income (loss) from operations	`OperatingIncomeLoss`	$3.11B	USD	2 Qtrs
Income (loss) from operations	`OperatingIncomeLoss`	$1.14B	USD	1 Quarter
Income (loss) from operations	`OperatingIncomeLoss`	$1.14B	USD	1 Quarter
Income (loss) from operations	`OperatingIncomeLoss`	$1.10B	USD	1 Quarter
Income (loss) from operations	`OperatingIncomeLoss`	$1.10B	USD	1 Quarter
Income (loss) from operations	`OperatingIncomeLoss`	$2.38B	USD	2 Qtrs
Income (loss) from operations	`OperatingIncomeLoss`	$2.38B	USD	2 Qtrs
Interest expense	`InterestExpenseNonoperating`	$317.00M	USD	2 Qtrs
Interest expense	`InterestExpenseNonoperating`	$327.00M	USD	2 Qtrs
Interest expense	`InterestExpenseNonoperating`	$327.00M	USD	2 Qtrs
Interest expense	`InterestExpenseNonoperating`	$317.00M	USD	2 Qtrs
Interest expense	`InterestExpenseNonoperating`	$157.00M	USD	1 Quarter
Interest expense	`InterestExpenseNonoperating`	$157.00M	USD	1 Quarter
Interest expense	`InterestExpenseNonoperating`	$168.00M	USD	1 Quarter
Interest expense	`InterestExpenseNonoperating`	$168.00M	USD	1 Quarter
Other expense, net	`OtherNonoperatingIncomeExpense`	$-55.00M	USD	1 Quarter
Other expense, net	`OtherNonoperatingIncomeExpense`	$-55.00M	USD	1 Quarter
Other expense, net	`OtherNonoperatingIncomeExpense`	$-363.00M	USD	2 Qtrs
Other expense, net	`OtherNonoperatingIncomeExpense`	$-363.00M	USD	2 Qtrs
Other expense, net	`OtherNonoperatingIncomeExpense`	$-118.00M	USD	2 Qtrs
Other expense, net	`OtherNonoperatingIncomeExpense`	$-118.00M	USD	2 Qtrs
Other expense, net	`OtherNonoperatingIncomeExpense`	$-200.00M	USD	1 Quarter
Other expense, net	`OtherNonoperatingIncomeExpense`	$-200.00M	USD	1 Quarter
Income before income taxes and equity in net losses	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$1.93B	USD	2 Qtrs
Income before income taxes and equity in net losses	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$1.93B	USD	2 Qtrs
Income before income taxes and equity in net losses	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$918.00M	USD	1 Quarter
Income before income taxes and equity in net losses	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$918.00M	USD	1 Quarter
Income before income taxes and equity in net losses	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$2.43B	USD	2 Qtrs
Income before income taxes and equity in net losses	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$741.00M	USD	1 Quarter
Income before income taxes and equity in net losses	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$2.43B	USD	2 Qtrs
Income before income taxes and equity in net losses	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$741.00M	USD	1 Quarter
Provision for income taxes	`IncomeTaxExpenseBenefit`	$474.00M	USD	2 Qtrs
Provision for income taxes	`IncomeTaxExpenseBenefit`	$585.00M	USD	2 Qtrs
Provision for income taxes	`IncomeTaxExpenseBenefit`	$585.00M	USD	2 Qtrs
Provision for income taxes	`IncomeTaxExpenseBenefit`	$474.00M	USD	2 Qtrs
Provision for income taxes	`IncomeTaxExpenseBenefit`	$179.00M	USD	1 Quarter
Provision for income taxes	`IncomeTaxExpenseBenefit`	$223.00M	USD	1 Quarter
Provision for income taxes	`IncomeTaxExpenseBenefit`	$179.00M	USD	1 Quarter
Provision for income taxes	`IncomeTaxExpenseBenefit`	$223.00M	USD	1 Quarter
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-41.00M	USD	2 Qtrs
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-41.00M	USD	2 Qtrs
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-62.00M	USD	2 Qtrs
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-62.00M	USD	2 Qtrs
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-19.00M	USD	1 Quarter
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-19.00M	USD	1 Quarter
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-17.00M	USD	1 Quarter
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-17.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.78B	USD	2 Qtrs
Net income	`ProfitLoss`	$678.00M	USD	1 Quarter
Net income	`ProfitLoss`	$678.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.78B	USD	2 Qtrs
Net income	`ProfitLoss`	$543.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.42B	USD	2 Qtrs
Net income	`ProfitLoss`	$1.42B	USD	2 Qtrs
Net income	`ProfitLoss`	$543.00M	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-3.00M	USD	2 Qtrs
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-3.00M	USD	2 Qtrs
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-2.00M	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-2.00M	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.00M	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.00M	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.00M	USD	2 Qtrs
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-4.00M	USD	2 Qtrs
Net income attributable to Humana	`NetIncomeLoss`	$679.00M	USD	1 Quarter
Net income attributable to Humana	`NetIncomeLoss`	$679.00M	USD	1 Quarter
Net income attributable to Humana	`NetIncomeLoss`	$1.42B	USD	2 Qtrs
Net income attributable to Humana	`NetIncomeLoss`	$1.42B	USD	2 Qtrs
Net income attributable to Humana	`NetIncomeLoss`	$545.00M	USD	1 Quarter
Net income attributable to Humana	`NetIncomeLoss`	$545.00M	USD	1 Quarter
Net income attributable to Humana	`NetIncomeLoss`	$1.79B	USD	2 Qtrs
Net income attributable to Humana	`NetIncomeLoss`	$1.79B	USD	2 Qtrs
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$11.76	USD	2 Qtrs
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$11.76	USD	2 Qtrs
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$5.63	USD	1 Quarter
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$5.63	USD	1 Quarter
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$4.52	USD	1 Quarter
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$4.52	USD	1 Quarter
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$14.83	USD	2 Qtrs
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$14.83	USD	2 Qtrs
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$14.81	USD	2 Qtrs
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$14.81	USD	2 Qtrs
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$4.51	USD	1 Quarter
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$11.74	USD	2 Qtrs
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$5.62	USD	1 Quarter
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$5.62	USD	1 Quarter
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$4.51	USD	1 Quarter
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$11.74	USD	2 Qtrs

Cash Flow Statement 194 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$1.42B	USD	2 Qtrs
Net income	`ProfitLoss`	$1.42B	USD	2 Qtrs
Net income	`ProfitLoss`	$543.00M	USD	1 Quarter
Net income	`ProfitLoss`	$543.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.78B	USD	2 Qtrs
Net income	`ProfitLoss`	$1.78B	USD	2 Qtrs
Net income	`ProfitLoss`	$678.00M	USD	1 Quarter
Net income	`ProfitLoss`	$678.00M	USD	1 Quarter
Gain on investment securities, net	`DebtAndEquitySecuritiesGainLoss`	$11.00M	USD	1 Quarter
Gain on investment securities, net	`DebtAndEquitySecuritiesGainLoss`	$11.00M	USD	1 Quarter
Gain on investment securities, net	`DebtAndEquitySecuritiesGainLoss`	$-1.00M	USD	1 Quarter
Gain on investment securities, net	`DebtAndEquitySecuritiesGainLoss`	$-1.00M	USD	1 Quarter
Gain on investment securities, net	`DebtAndEquitySecuritiesGainLoss`	-	USD	2 Qtrs
Gain on investment securities, net	`DebtAndEquitySecuritiesGainLoss`	$13.00M	USD	2 Qtrs
Gain on investment securities, net	`DebtAndEquitySecuritiesGainLoss`	-	USD	2 Qtrs
Gain on investment securities, net	`DebtAndEquitySecuritiesGainLoss`	$13.00M	USD	2 Qtrs
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-17.00M	USD	1 Quarter
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-17.00M	USD	1 Quarter
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-19.00M	USD	1 Quarter
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-19.00M	USD	1 Quarter
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-62.00M	USD	2 Qtrs
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-62.00M	USD	2 Qtrs
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-41.00M	USD	2 Qtrs
Equity in net losses	`IncomeLossFromEquityMethodInvestments`	$-41.00M	USD	2 Qtrs
Stock-based compensation	`ShareBasedCompensation`	$110.00M	USD	2 Qtrs
Stock-based compensation	`ShareBasedCompensation`	$110.00M	USD	2 Qtrs
Stock-based compensation	`ShareBasedCompensation`	$100.00M	USD	2 Qtrs
Stock-based compensation	`ShareBasedCompensation`	$100.00M	USD	2 Qtrs
Depreciation	`Depreciation`	$396.00M	USD	2 Qtrs
Depreciation	`Depreciation`	$396.00M	USD	2 Qtrs
Depreciation	`Depreciation`	$454.00M	USD	2 Qtrs
Depreciation	`Depreciation`	$454.00M	USD	2 Qtrs
Amortization	`AdjustmentForAmortization`	$30.00M	USD	2 Qtrs
Amortization	`AdjustmentForAmortization`	$30.00M	USD	2 Qtrs
Amortization	`AdjustmentForAmortization`	$31.00M	USD	2 Qtrs
Amortization	`AdjustmentForAmortization`	$31.00M	USD	2 Qtrs
Impairment of property and equipment	`TangibleAssetImpairmentCharges`	$87.00M	USD	2 Qtrs
Impairment of property and equipment	`TangibleAssetImpairmentCharges`	$87.00M	USD	2 Qtrs
Impairment of property and equipment	`TangibleAssetImpairmentCharges`	$14.00M	USD	2 Qtrs
Impairment of property and equipment	`TangibleAssetImpairmentCharges`	$14.00M	USD	2 Qtrs
Impairment of indefinite-lived intangible assets	`ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill`	$200.00M	USD	1 Quarter
Impairment of indefinite-lived intangible assets	`ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill`	-	USD	1 Quarter
Impairment of indefinite-lived intangible assets	`ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill`	-	USD	1 Quarter
Impairment of indefinite-lived intangible assets	`ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill`	-	USD	2 Qtrs
Impairment of indefinite-lived intangible assets	`ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill`	$200.00M	USD	1 Quarter
Impairment of indefinite-lived intangible assets	`ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill`	$32.00M	USD	1 Quarter
Impairment of indefinite-lived intangible assets	`ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill`	$32.00M	USD	1 Quarter
Impairment of indefinite-lived intangible assets	`ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill`	-	USD	2 Qtrs
Impairment of indefinite-lived intangible assets	`ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill`	$32.00M	USD	2 Qtrs
Impairment of indefinite-lived intangible assets	`ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill`	$32.00M	USD	2 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$1.80B	USD	2 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$1.80B	USD	2 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$2.06B	USD	2 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$2.06B	USD	2 Qtrs
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-592.00M	USD	2 Qtrs
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-592.00M	USD	2 Qtrs
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$658.00M	USD	2 Qtrs
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$658.00M	USD	2 Qtrs
Benefits payable	`IncreaseDecreaseInHealthCareInsuranceLiabilities`	$620.00M	USD	2 Qtrs
Benefits payable	`IncreaseDecreaseInHealthCareInsuranceLiabilities`	$620.00M	USD	2 Qtrs
Benefits payable	`IncreaseDecreaseInHealthCareInsuranceLiabilities`	$1.21B	USD	2 Qtrs
Benefits payable	`IncreaseDecreaseInHealthCareInsuranceLiabilities`	$1.21B	USD	2 Qtrs
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-327.00M	USD	2 Qtrs
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-327.00M	USD	2 Qtrs
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$1.01B	USD	2 Qtrs
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$1.01B	USD	2 Qtrs
Unearned revenues	`IncreaseDecreaseInContractWithCustomerLiability`	$14.00M	USD	2 Qtrs
Unearned revenues	`IncreaseDecreaseInContractWithCustomerLiability`	$14.00M	USD	2 Qtrs
Unearned revenues	`IncreaseDecreaseInContractWithCustomerLiability`	$47.00M	USD	2 Qtrs
Unearned revenues	`IncreaseDecreaseInContractWithCustomerLiability`	$47.00M	USD	2 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	-	USD	2 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	-	USD	2 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	$44.00M	USD	2 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	$44.00M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.64B	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.64B	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.60B	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.60B	USD	2 Qtrs
Acquisitions, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$17.00M	USD	2 Qtrs
Acquisitions, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$17.00M	USD	2 Qtrs
Acquisitions, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$1.00M	USD	2 Qtrs
Acquisitions, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$1.00M	USD	2 Qtrs
Purchases of property and equipment, net	`PaymentsToAcquirePropertyPlantAndEquipment`	$291.00M	USD	2 Qtrs
Purchases of property and equipment, net	`PaymentsToAcquirePropertyPlantAndEquipment`	$291.00M	USD	2 Qtrs
Purchases of property and equipment, net	`PaymentsToAcquirePropertyPlantAndEquipment`	$209.00M	USD	2 Qtrs
Purchases of property and equipment, net	`PaymentsToAcquirePropertyPlantAndEquipment`	$209.00M	USD	2 Qtrs
Purchases of investment securities	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$1.94B	USD	2 Qtrs
Purchases of investment securities	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$1.94B	USD	2 Qtrs
Purchases of investment securities	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$2.88B	USD	2 Qtrs
Purchases of investment securities	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$2.88B	USD	2 Qtrs
Proceeds from maturities of investment securities	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$1.62B	USD	2 Qtrs
Proceeds from maturities of investment securities	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$1.35B	USD	2 Qtrs
Proceeds from maturities of investment securities	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$1.35B	USD	2 Qtrs
Proceeds from maturities of investment securities	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$1.62B	USD	2 Qtrs
Proceeds from sales of investment securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$499.00M	USD	2 Qtrs
Proceeds from sales of investment securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$499.00M	USD	2 Qtrs
Proceeds from sales of investment securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$1.24B	USD	2 Qtrs
Proceeds from sales of investment securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$1.24B	USD	2 Qtrs
Changes in securities lending collateral receivable	`IncreaseDecreaseInCollateralHeldUnderSecuritiesLending`	$48.00M	USD	2 Qtrs
Changes in securities lending collateral receivable	`IncreaseDecreaseInCollateralHeldUnderSecuritiesLending`	$48.00M	USD	2 Qtrs
Changes in securities lending collateral receivable	`IncreaseDecreaseInCollateralHeldUnderSecuritiesLending`	$79.00M	USD	2 Qtrs
Changes in securities lending collateral receivable	`IncreaseDecreaseInCollateralHeldUnderSecuritiesLending`	$79.00M	USD	2 Qtrs
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$661.00M	USD	2 Qtrs
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$661.00M	USD	2 Qtrs
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.42B	USD	2 Qtrs
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.42B	USD	2 Qtrs
(Payments) receipts from contract deposits, net	`PaymentsForProceedsFromContractDeposits`	$-285.00M	USD	2 Qtrs
(Payments) receipts from contract deposits, net	`PaymentsForProceedsFromContractDeposits`	$-285.00M	USD	2 Qtrs
(Payments) receipts from contract deposits, net	`PaymentsForProceedsFromContractDeposits`	$579.00M	USD	2 Qtrs
(Payments) receipts from contract deposits, net	`PaymentsForProceedsFromContractDeposits`	$579.00M	USD	2 Qtrs
Proceeds from issuance of senior notes, net	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$1.48B	USD	2 Qtrs
Proceeds from issuance of senior notes, net	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$1.48B	USD	2 Qtrs
Proceeds from issuance of senior notes, net	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$2.23B	USD	2 Qtrs
Proceeds from issuance of senior notes, net	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$2.23B	USD	2 Qtrs
Repayments of senior notes	`RepaymentsOfSeniorDebt`	$771.00M	USD	2 Qtrs
Repayments of senior notes	`RepaymentsOfSeniorDebt`	$771.00M	USD	2 Qtrs
Repayments of senior notes	`RepaymentsOfSeniorDebt`	$34.00M	USD	2 Qtrs
Repayments of senior notes	`RepaymentsOfSeniorDebt`	$34.00M	USD	2 Qtrs
Repayments from issuance of commercial paper, net	`ProceedsFromRepaymentsOfCommercialPaper`	$-895.00M	USD	2 Qtrs
Repayments from issuance of commercial paper, net	`ProceedsFromRepaymentsOfCommercialPaper`	$-895.00M	USD	2 Qtrs
Repayments from issuance of commercial paper, net	`ProceedsFromRepaymentsOfCommercialPaper`	$-5.00M	USD	2 Qtrs
Repayments from issuance of commercial paper, net	`ProceedsFromRepaymentsOfCommercialPaper`	$-5.00M	USD	2 Qtrs
Debt issue costs	`PaymentsOfDebtIssuanceCosts`	$5.00M	USD	2 Qtrs
Debt issue costs	`PaymentsOfDebtIssuanceCosts`	$5.00M	USD	2 Qtrs
Debt issue costs	`PaymentsOfDebtIssuanceCosts`	$7.00M	USD	2 Qtrs
Debt issue costs	`PaymentsOfDebtIssuanceCosts`	$7.00M	USD	2 Qtrs
Change in book overdraft	`IncreaseDecreaseInBookOverdrafts`	$2.00M	USD	2 Qtrs
Change in book overdraft	`IncreaseDecreaseInBookOverdrafts`	$2.00M	USD	2 Qtrs
Change in book overdraft	`IncreaseDecreaseInBookOverdrafts`	$-105.00M	USD	2 Qtrs
Change in book overdraft	`IncreaseDecreaseInBookOverdrafts`	$-105.00M	USD	2 Qtrs
Common stock repurchases	`PaymentsForRepurchaseOfCommonStock`	$766.00M	USD	2 Qtrs
Common stock repurchases	`PaymentsForRepurchaseOfCommonStock`	$766.00M	USD	2 Qtrs
Common stock repurchases	`PaymentsForRepurchaseOfCommonStock`	$109.00M	USD	2 Qtrs
Common stock repurchases	`PaymentsForRepurchaseOfCommonStock`	$109.00M	USD	2 Qtrs
Dividends paid	`PaymentsOfDividends`	$214.00M	USD	2 Qtrs
Dividends paid	`PaymentsOfDividends`	$214.00M	USD	2 Qtrs
Dividends paid	`PaymentsOfDividends`	$216.00M	USD	2 Qtrs
Dividends paid	`PaymentsOfDividends`	$216.00M	USD	2 Qtrs
Changes in securities lending payable	`IncreaseDecreaseInSecuritiesLendingPayable`	$79.00M	USD	2 Qtrs
Changes in securities lending payable	`IncreaseDecreaseInSecuritiesLendingPayable`	$79.00M	USD	2 Qtrs
Changes in securities lending payable	`IncreaseDecreaseInSecuritiesLendingPayable`	$48.00M	USD	2 Qtrs
Changes in securities lending payable	`IncreaseDecreaseInSecuritiesLendingPayable`	$48.00M	USD	2 Qtrs
Changes in rebate factor payable	`IncreaseDecreaseInRebateFactorPayable`	-	USD	2 Qtrs
Changes in rebate factor payable	`IncreaseDecreaseInRebateFactorPayable`	-	USD	2 Qtrs
Changes in rebate factor payable	`IncreaseDecreaseInRebateFactorPayable`	$-123.00M	USD	2 Qtrs
Changes in rebate factor payable	`IncreaseDecreaseInRebateFactorPayable`	$-123.00M	USD	2 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-62.00M	USD	2 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-62.00M	USD	2 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-93.00M	USD	2 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-93.00M	USD	2 Qtrs
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-444.00M	USD	2 Qtrs
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-444.00M	USD	2 Qtrs
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$587.00M	USD	2 Qtrs
Net cash (used in) provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$587.00M	USD	2 Qtrs
Increase in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$807.00M	USD	2 Qtrs
Increase in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$807.00M	USD	2 Qtrs
Increase in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$1.82B	USD	2 Qtrs
Increase in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$1.82B	USD	2 Qtrs
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.69B	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.69B	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.22B	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.22B	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$5.50B	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$5.50B	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.04B	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.04B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$5.50B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.04B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.04B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$5.50B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.69B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.22B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.69B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.22B	USD	Point-in-time
Interest payments	`InterestPaidNet`	$250.00M	USD	2 Qtrs
Interest payments	`InterestPaidNet`	$250.00M	USD	2 Qtrs
Interest payments	`InterestPaidNet`	$293.00M	USD	2 Qtrs
Interest payments	`InterestPaidNet`	$293.00M	USD	2 Qtrs
Income tax payments, net	`IncomeTaxesPaidNet`	$29.00M	USD	2 Qtrs
Income tax payments, net	`IncomeTaxesPaidNet`	$29.00M	USD	2 Qtrs
Income tax payments, net	`IncomeTaxesPaidNet`	$362.00M	USD	2 Qtrs
Income tax payments, net	`IncomeTaxesPaidNet`	$362.00M	USD	2 Qtrs
Fair value of assets acquired, net of cash and cash equivalents acquired	`FairValueOfAssetsAcquired`	$26.00M	USD	2 Qtrs
Fair value of assets acquired, net of cash and cash equivalents acquired	`FairValueOfAssetsAcquired`	$26.00M	USD	2 Qtrs
Fair value of assets acquired, net of cash and cash equivalents acquired	`FairValueOfAssetsAcquired`	$2.00M	USD	2 Qtrs
Fair value of assets acquired, net of cash and cash equivalents acquired	`FairValueOfAssetsAcquired`	$2.00M	USD	2 Qtrs
Less: Fair value of liabilities assumed	`LiabilitiesAssumed1`	$9.00M	USD	2 Qtrs
Less: Fair value of liabilities assumed	`LiabilitiesAssumed1`	$1.00M	USD	2 Qtrs
Less: Fair value of liabilities assumed	`LiabilitiesAssumed1`	$1.00M	USD	2 Qtrs
Less: Fair value of liabilities assumed	`LiabilitiesAssumed1`	$9.00M	USD	2 Qtrs
Cash paid for acquired businesses, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$1.00M	USD	2 Qtrs
Cash paid for acquired businesses, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$17.00M	USD	2 Qtrs
Cash paid for acquired businesses, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$1.00M	USD	2 Qtrs
Cash paid for acquired businesses, net of cash and cash equivalents acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$17.00M	USD	2 Qtrs

Stockholders Equity 80 line items

Line Item	Tag	Value	Unit	Period
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$18.30B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$18.30B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.73B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.73B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.82B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.82B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.19B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.19B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.32B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.32B	USD	Point-in-time
Net income	`ProfitLoss`	$678.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.78B	USD	2 Qtrs
Net income	`ProfitLoss`	$1.78B	USD	2 Qtrs
Net income	`ProfitLoss`	$678.00M	USD	1 Quarter
Net income	`ProfitLoss`	$543.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.42B	USD	2 Qtrs
Net income	`ProfitLoss`	$1.42B	USD	2 Qtrs
Net income	`ProfitLoss`	$543.00M	USD	1 Quarter
Distribution from (to) noncontrolling interest holders, net	`NoncontrollingInterestIncreaseDecreaseFromContributionsOrDistributionsFromToNoncontrollingInterestHolders`	$-5.00M	USD	2 Qtrs
Distribution from (to) noncontrolling interest holders, net	`NoncontrollingInterestIncreaseDecreaseFromContributionsOrDistributionsFromToNoncontrollingInterestHolders`	$-5.00M	USD	1 Quarter
Distribution from (to) noncontrolling interest holders, net	`NoncontrollingInterestIncreaseDecreaseFromContributionsOrDistributionsFromToNoncontrollingInterestHolders`	$-5.00M	USD	1 Quarter
Distribution from (to) noncontrolling interest holders, net	`NoncontrollingInterestIncreaseDecreaseFromContributionsOrDistributionsFromToNoncontrollingInterestHolders`	$-5.00M	USD	2 Qtrs
Distribution from (to) noncontrolling interest holders, net	`NoncontrollingInterestIncreaseDecreaseFromContributionsOrDistributionsFromToNoncontrollingInterestHolders`	$2.00M	USD	1 Quarter
Distribution from (to) noncontrolling interest holders, net	`NoncontrollingInterestIncreaseDecreaseFromContributionsOrDistributionsFromToNoncontrollingInterestHolders`	$4.00M	USD	2 Qtrs
Distribution from (to) noncontrolling interest holders, net	`NoncontrollingInterestIncreaseDecreaseFromContributionsOrDistributionsFromToNoncontrollingInterestHolders`	$4.00M	USD	2 Qtrs
Distribution from (to) noncontrolling interest holders, net	`NoncontrollingInterestIncreaseDecreaseFromContributionsOrDistributionsFromToNoncontrollingInterestHolders`	$2.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$284.00M	USD	2 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$284.00M	USD	2 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$85.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$85.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-123.00M	USD	2 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-123.00M	USD	2 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-36.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-36.00M	USD	1 Quarter
Common stock repurchases	`TreasuryStockValueAcquiredCostMethod`	$50.00M	USD	1 Quarter
Common stock repurchases	`TreasuryStockValueAcquiredCostMethod`	$773.00M	USD	2 Qtrs
Common stock repurchases	`TreasuryStockValueAcquiredCostMethod`	$773.00M	USD	2 Qtrs
Common stock repurchases	`TreasuryStockValueAcquiredCostMethod`	$50.00M	USD	1 Quarter
Common stock repurchases	`TreasuryStockValueAcquiredCostMethod`	$100.00M	USD	1 Quarter
Common stock repurchases	`TreasuryStockValueAcquiredCostMethod`	$100.00M	USD	1 Quarter
Common stock repurchases	`TreasuryStockValueAcquiredCostMethod`	$109.00M	USD	2 Qtrs
Common stock repurchases	`TreasuryStockValueAcquiredCostMethod`	$109.00M	USD	2 Qtrs
Dividends and dividend equivalents	`DividendsCommonStockCash`	$107.00M	USD	1 Quarter
Dividends and dividend equivalents	`DividendsCommonStockCash`	$107.00M	USD	1 Quarter
Dividends and dividend equivalents	`DividendsCommonStockCash`	$107.00M	USD	1 Quarter
Dividends and dividend equivalents	`DividendsCommonStockCash`	$107.00M	USD	1 Quarter
Dividends and dividend equivalents	`DividendsCommonStockCash`	$215.00M	USD	2 Qtrs
Dividends and dividend equivalents	`DividendsCommonStockCash`	$215.00M	USD	2 Qtrs
Dividends and dividend equivalents	`DividendsCommonStockCash`	$215.00M	USD	2 Qtrs
Dividends and dividend equivalents	`DividendsCommonStockCash`	$215.00M	USD	2 Qtrs
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$60.00M	USD	1 Quarter
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$60.00M	USD	1 Quarter
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$100.00M	USD	2 Qtrs
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$100.00M	USD	2 Qtrs
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$110.00M	USD	2 Qtrs
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$55.00M	USD	1 Quarter
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$110.00M	USD	2 Qtrs
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$55.00M	USD	1 Quarter
Restricted stock unit vesting	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	1 Quarter
Restricted stock unit vesting	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	1 Quarter
Restricted stock unit vesting	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	1 Quarter
Restricted stock unit vesting	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	1 Quarter
Restricted stock unit vesting	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	2 Qtrs
Restricted stock unit vesting	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	2 Qtrs
Restricted stock unit vesting	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	2 Qtrs
Restricted stock unit vesting	`StockIssuedDuringPeriodValueRestrictedStockAwardGross`	-	USD	2 Qtrs
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.32B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$18.30B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$18.30B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.73B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.73B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.82B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$17.82B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.19B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.19B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.32B	USD	Point-in-time

Comprehensive Income 72 line items

Line Item	Tag	Value	Unit	Period
Net income attributable to Humana	`NetIncomeLoss`	$1.79B	USD	2 Qtrs
Net income attributable to Humana	`NetIncomeLoss`	$1.79B	USD	2 Qtrs
Net income attributable to Humana	`NetIncomeLoss`	$545.00M	USD	1 Quarter
Net income attributable to Humana	`NetIncomeLoss`	$545.00M	USD	1 Quarter
Net income attributable to Humana	`NetIncomeLoss`	$1.42B	USD	2 Qtrs
Net income attributable to Humana	`NetIncomeLoss`	$1.42B	USD	2 Qtrs
Net income attributable to Humana	`NetIncomeLoss`	$679.00M	USD	1 Quarter
Net income attributable to Humana	`NetIncomeLoss`	$679.00M	USD	1 Quarter
Change in gross unrealized investment gains (losses)	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$-47.00M	USD	1 Quarter
Change in gross unrealized investment gains (losses)	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$-47.00M	USD	1 Quarter
Change in gross unrealized investment gains (losses)	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$117.00M	USD	1 Quarter
Change in gross unrealized investment gains (losses)	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$117.00M	USD	1 Quarter
Change in gross unrealized investment gains (losses)	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$375.00M	USD	2 Qtrs
Change in gross unrealized investment gains (losses)	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$-161.00M	USD	2 Qtrs
Change in gross unrealized investment gains (losses)	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$375.00M	USD	2 Qtrs
Change in gross unrealized investment gains (losses)	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$-161.00M	USD	2 Qtrs
Effect of income taxes	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-38.00M	USD	2 Qtrs
Effect of income taxes	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-10.00M	USD	1 Quarter
Effect of income taxes	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-10.00M	USD	1 Quarter
Effect of income taxes	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-38.00M	USD	2 Qtrs
Effect of income taxes	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$85.00M	USD	2 Qtrs
Effect of income taxes	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$27.00M	USD	1 Quarter
Effect of income taxes	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$85.00M	USD	2 Qtrs
Effect of income taxes	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$27.00M	USD	1 Quarter
Total change in unrealized investment gains (losses), net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-123.00M	USD	2 Qtrs
Total change in unrealized investment gains (losses), net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-123.00M	USD	2 Qtrs
Total change in unrealized investment gains (losses), net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-37.00M	USD	1 Quarter
Total change in unrealized investment gains (losses), net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$-37.00M	USD	1 Quarter
Total change in unrealized investment gains (losses), net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$290.00M	USD	2 Qtrs
Total change in unrealized investment gains (losses), net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$290.00M	USD	2 Qtrs
Total change in unrealized investment gains (losses), net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$90.00M	USD	1 Quarter
Total change in unrealized investment gains (losses), net of tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax`	$90.00M	USD	1 Quarter
Reclassification adjustment for net realized (losses) gains	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$5.00M	USD	1 Quarter
Reclassification adjustment for net realized (losses) gains	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	-	USD	2 Qtrs
Reclassification adjustment for net realized (losses) gains	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	-	USD	2 Qtrs
Reclassification adjustment for net realized (losses) gains	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$5.00M	USD	1 Quarter
Reclassification adjustment for net realized (losses) gains	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$7.00M	USD	2 Qtrs
Reclassification adjustment for net realized (losses) gains	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$7.00M	USD	2 Qtrs
Reclassification adjustment for net realized (losses) gains	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$-1.00M	USD	1 Quarter
Reclassification adjustment for net realized (losses) gains	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$-1.00M	USD	1 Quarter
Effect of income taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	-	USD	1 Quarter
Effect of income taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	-	USD	1 Quarter
Effect of income taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$1.00M	USD	2 Qtrs
Effect of income taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	$1.00M	USD	2 Qtrs
Effect of income taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	-	USD	1 Quarter
Effect of income taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	-	USD	1 Quarter
Effect of income taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	-	USD	2 Qtrs
Effect of income taxes	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax`	-	USD	2 Qtrs
Total reclassification adjustment, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$5.00M	USD	1 Quarter
Total reclassification adjustment, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	-	USD	2 Qtrs
Total reclassification adjustment, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	-	USD	2 Qtrs
Total reclassification adjustment, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$5.00M	USD	1 Quarter
Total reclassification adjustment, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$6.00M	USD	2 Qtrs
Total reclassification adjustment, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$-1.00M	USD	1 Quarter
Total reclassification adjustment, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$-1.00M	USD	1 Quarter
Total reclassification adjustment, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax`	$6.00M	USD	2 Qtrs
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-123.00M	USD	2 Qtrs
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-123.00M	USD	2 Qtrs
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-36.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-36.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$284.00M	USD	2 Qtrs
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$85.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$85.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$284.00M	USD	2 Qtrs
Comprehensive income attributable to Humana	`ComprehensiveIncomeNetOfTax`	$2.07B	USD	2 Qtrs
Comprehensive income attributable to Humana	`ComprehensiveIncomeNetOfTax`	$643.00M	USD	1 Quarter
Comprehensive income attributable to Humana	`ComprehensiveIncomeNetOfTax`	$643.00M	USD	1 Quarter
Comprehensive income attributable to Humana	`ComprehensiveIncomeNetOfTax`	$630.00M	USD	1 Quarter
Comprehensive income attributable to Humana	`ComprehensiveIncomeNetOfTax`	$630.00M	USD	1 Quarter
Comprehensive income attributable to Humana	`ComprehensiveIncomeNetOfTax`	$1.30B	USD	2 Qtrs
Comprehensive income attributable to Humana	`ComprehensiveIncomeNetOfTax`	$1.30B	USD	2 Qtrs
Comprehensive income attributable to Humana	`ComprehensiveIncomeNetOfTax`	$2.07B	USD	2 Qtrs

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.