2015 Short-duration Insurance Contracts, Accident Year 2015 [Member] Impairments to goodwill Goodwill, Impairment Loss Insurance lines other than short-duration Short-duration Insurance Contracts, Liability for Unpaid Claims and Claim Adjustment Expense, Other Reconciling Item Common stock, par value (in dollars per share) Common Stock, Par value (in dollars per share) Common Stock, Par or Stated Value Per Share Financial Asset, Period Past Due [Domain] Financial Asset, Period Past Due [Domain] Finance receivables held for sale Interest and Fee Income Loans and Leases Held-for-Sale Originated As Held-for-Investment The amount of interest and fee income earned from loans and leases held-for-sale that originated as held-for investment. Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Non-cash merger of SFI with SFC Noncash Merger Related Costs Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Receivables from parent and affiliates Due from Affiliates Legal Entity [Axis] Legal Entity [Axis] February 2019 Real Estate Loan Sale February 2019 Real Estate Loan Sale [Member] February 2019 Real Estate Loan Sale Accumulated benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation Concentration Risk Type [Domain] Concentration Risk Type [Domain] Majority Shareholder Majority Shareholder [Member] Number of payments past due before which a loan is charged off to the allowance for finance receivable losses Threshold Payments Past Due For Write-Off Of Financing Receivable Threshold Payments Past Due For Write-Off Of Financing Receivable Performance-based shares PRSUs Performance Shares [Member] Fair value measured at NAV Fair Value Measured at Net Asset Value Per Share [Member] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Period restricting maximum ordinary dividends without prior approval Statutory Accounting Practice, Period that the extraordinary dividends can be paid without prior approval Statutory Accounting Practice. Period that the maximum amount of ordinary dividends (referred to as “extraordinary dividends”) for an Indiana domiciled life insurance company that can be paid without prior approval. Expected return on assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Due after 1 year through 5 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Schedule of changes in the allowance for finance receivable losses by finance receivable type Financing Receivable, Current, Allowance for Credit Loss [Table Text Block] Line of Credit Facility [Table] Line of Credit Facility [Table] Personal loans secured by titled collateral (as a percent) Loans Pledged as Collateral, Percentage Loans Pledged as Collateral, Percentage Goodwill Deferred Tax Liabilities, Goodwill Transfer of finance receivables to real estate owned Real Estate Owned, Transfer to Real Estate Owned 2024 Lessee, Operating Lease, Liability, Payments, Due Year Five Financial Asset, Period Past Due [Axis] Financial Asset, Period Past Due [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Certificates of deposit and commercial paper Certificates of Deposit and Commercial Paper [Member] Certificates of Deposit and Commercial Paper [Member] Certificates of Deposit and Commercial Paper [Member] Company contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Other changes in plan assets and projected benefit obligation recognized in other comprehensive income or loss: Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] Proceeds on sales of finance receivables held for sale originated as held for investment Proceeds from Sales and Principal Collections on Finance Receivables Held For Sale Originated as Held-for-investment This element represents sales and principal collections on finance receivables held for sale originated as held for investment by the reporting entity during the reporting period. Income tax effect Reclassification from AOCI, Current Period, Tax Debt Instrument [Axis] Debt Instrument [Axis] Level 2 Fair Value, Inputs, Level 2 [Member] Finance receivable related Credit Insurance Credit insurance Financial Guarantee Insurance Product Line [Member] Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Projected benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Retirement Plan Tax Status [Domain] Retirement Plan Tax Status [Domain] Settlements with tax authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities California CALIFORNIA Subsidiary, Sale of Stock [Line Items] Subsidiary, Sale of Stock [Line Items] Due in 1 year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost Total Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid Statement [Table] Statement [Table] Investment Securities Investment Valuation Policy [Policy Text Block] Disclosure of accounting policy for valuation of investments in financial assets, including marketable securities (debt and equity securities with readily determinable fair values), investments accounted for under the equity method and cost method, securities borrowed and loaned, and repurchase and resale agreements. Income before income tax expense - U.S. operations Income (Loss) from Continuing Operations before Income Taxes, Domestic Measurement Frequency [Axis] Measurement Frequency [Axis] Net unrealized gains (losses) on other securities sold or redeemed Debt Securities, Trading, Unrealized Gain (Loss) Receivables [Abstract] Receivables [Abstract] Other liabilities Other liabilities Other Liabilities Assets Variable Interest Entity, Consolidated, Carrying Amount, Assets Lapse in statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] TDR average net receivables held for sale and finance charges recognized on TDR finance receivables held for sale TDR Average Net Receivables Held For Sale And Finance Charges Recognized On TDR Finance Receivables Held For Sale [Table Text Block] TDR average net receivables held for sale and finance charges recognized on TDR finance receivables held for sale [Table Text Block] Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Cumulative Frequency (as a percent) Short-duration Insurance Contracts, Claim Frequency, Percent Short-duration Insurance Contracts, Claim Frequency, Percent Securitizations Long Term Debt with Variable Monthly Repayments of Principal Represents the amount of long-term debt with variable monthly repayments of the principal. Achievement of performance goal Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Real Estate Loans - Held for Sale Disposal Group, Held-for-sale, Not Discontinued Operations [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] SFI Springleaf Finance, Inc [Member] Represents information pertaining to Springleaf Finance, Inc., the direct parent of the entity. Long-term debt Long-term debt Long-term Debt, Fair Value Current year Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year Cash contribution of related party Equity contribution Proceeds from Contributions from Affiliates Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Period restricting maximum amount of dividends without prior approval Statutory Accounting Practice, Period that the ordinary dividends can be paid without prior approval Statutory Accounting Practice. Period that the maximum amount of dividends (referred to as “ordinary dividends”) for an Indiana domiciled life insurance company that can be paid without prior approval. Basic (in shares) Weighted average number of shares outstanding (basic) (in shares) Weighted Average Number of Shares Outstanding, Basic Net Other Intangible Assets Finite-Lived Intangible Assets, Net Number of payments past due before which a loan is charged off to the allowance for finance receivable losses, period Threshold Payments Past Due For Write-Off Of Financing Receivable, Period Threshold Payments Past Due For Write-Off Of Financing Receivable, Period U.S. government and government sponsored entities US Treasury and Government [Member] Other Deferred Tax Liabilities, Other Investment securities in an unrealized loss position Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions Net operating loss carryforwards Operating Loss Carryforwards 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Two 60-89 days past due Financial Asset, 60 to 89 Days Past Due [Member] Debt fair value adjustment Deferred Tax Liabilities, Debt Write-down Amount of deferred tax liability attributable to taxable temporary differences from debt write-down. Assets Assets [Abstract] OMFH Notes due 2021 OMFH Notes 2021 [Member] OMFH Notes 2021 [Member] Mortgage-backed, asset-backed, and collateralized bonds Asset-backed Securities [Member] Deferred and accrued taxes Deferred and Accrued Income Taxes Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances, as well as the carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations and other non-income based tax obligations due. Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Total interest income Interest income Interest and Dividend Income, Operating Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Other short-duration insurance lines Short-Duration Insurance, Other [Member] Total Deferred Tax Assets, Gross Florida FLORIDA Number of employees affected by amendments Share-based Payment Arrangement, Plan Modification, Number of Grantees Affected Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Document Fiscal Year Focus Document Fiscal Year Focus Reclassifications from nonaccretable difference Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications (to) from Nonaccretable Difference 90-179 days past due Financing Receivables, 90 To 179 Days Past Due [Member] Financing Receivables, 90 To 179 Days Past Due [Member] Georgia GEORGIA Title of Individual [Axis] Title of Individual [Axis] Apollo-Värde Group Apollo-Värde Group [Member] Apollo-Värde Group [Member] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Foreign Currency Translation Adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Fair Value Measurements Fair Value Disclosures [Text Block] Federal Income Tax Note [Table] Federal Income Tax Note [Table] Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Entity Emerging Growth Company Entity Emerging Growth Company Retained Earnings Retained Earnings [Member] Segments [Domain] Segments [Domain] Pre-modification TDR net finance receivables Financing Receivable, Troubled Debt Restructuring, Premodification Due after 1 year through 5 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Net cash used for investing activities Net Cash Provided by (Used in) Investing Activities Income Tax Authority [Axis] Income Tax Authority [Axis] Common shares issued Stock Issued During Period, Shares, New Issues Customer relationships Customer Relationships [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Related Party Transaction [Axis] Related Party Transaction [Axis] Other assets Other Assets [Member] Net change in unrealized gains (losses) on non-credit impaired available-for-sale securities Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax Benefits paid: Defined Benefit Plan, Plan Assets Benefits Paid [Abstract] Defined Benefit Plan, Plan Assets Benefits Paid 2018 Short-duration Insurance Contracts, Accident Year 2018 [Member] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] December 2018 Real Estate Loan Sale December 2018 Real Estate Loan Sale [Member] December 2018 Real Estate Loan Sale [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Shares excluded in the diluted earnings per share calculation Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Balance Sheet Location [Axis] Balance Sheet Location [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Business Combinations [Abstract] Discount rate Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Net balance at beginning of period Liability For Unpaid Claims And Claims Adjustmen Expense, Net, Adjusted Liability For Unpaid Claims And Claims Adjustment Expense, Net, Adjusted Percentage of employee salary eligible for employer matching contribution Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Total lease payments Lessee, Operating Lease, Liability, Payments, Due Increase (decrease) in net deferred tax asset Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Summary of service-based stock activity Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Computation of earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Entity [Domain] Entity [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Illinois ILLINOIS Segments [Axis] Segments [Axis] Schedule of PBO and ABO exceeding fair value of plan assets Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block] Indiana INDIANA 5.25% Senior Notes due 2019 Senior Notes 5.25 Percent Due 2019 [Member] Senior Notes 5.25 Percent Due 2019 [Member] 2023 Long-term Debt, Maturities, Repayments of Principal in Year Four Carrying Value Total Carrying Value Reported Value Measurement [Member] Accounting Pronouncements Recently Adopted and To Be Adopted New Accounting Pronouncements, Policy [Policy Text Block] Maximum cash and equity-based awards to non-employee directors per calendar year Deferred Compensation Arrangement With Individual, Maximum Value Of Cash And Share-based Compensation Per Employee Deferred Compensation Arrangement With Individual, Maximum Value Of Cash And Share-based Compensation Per Employee State Deferred State and Local Income Tax Expense (Benefit) Acquisition costs Deferred Tax Assets, Acquisition Costs Deferred Tax Assets, Acquisition Costs All outstanding liabilities before 2015, net of reinsurance Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented Claims Development [Line Items] Claims Development [Line Items] Interest income: Interest Income (Expense), Net [Abstract] Asset-backed Securities, Securitized Loans and Receivables Asset-backed Securities, Securitized Loans and Receivables [Member] Weighted average remaining lease term and discount rate Lease, Cost [Table Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Net realized gains Debt Securities, Trading, Realized Gain (Loss) Withholding tax on share-based compensation Payment, Tax Withholding, Share-based Payment Arrangement Benefits paid: Defined Benefit Plan Benefit Obligation Benefits Paid [Abstract] Defined Benefit Plan Benefit Obligation Benefits Paid Available-for-sale securities purchased Payments to Acquire Debt Securities, Available-for-sale Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Increases in tax positions for prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Debt issuance costs Debt Issuance Costs, Excluded From Direct Deduction From Long Term Debt Debt Issuance Costs, Excluded From Direct Deduction From Long Term Debt Other expenses: Noninterest Expense [Abstract] Salaries and benefit expenses related to plan Defined Contribution Plan, Cost Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other, net Payments for (Proceeds from) Other Investing Activities Schedule of principal maturities of long-term debt Schedule of Maturities of Long-term Debt [Table Text Block] Reclassification adjustments included in net income, net of tax: Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax [Abstract] Due after 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost Vesting period Defined Benefit Plan Vesting Period Represents the vesting period of the noncontributory defined benefit plan. Remaining Real Estate Loans Held For Sale Remaining Real Estate Loans Held For Sale [Member] Remaining Real Estate Loans Held For Sale Retirement Benefit Plans Pension and Other Postretirement Plans, Policy [Policy Text Block] Consolidated VIEs Variable Interest Entity, Primary Beneficiary [Member] Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Short-duration Insurance Contracts, Claims Development [Table] Short-duration Insurance Contracts, Claims Development [Table] Level 3 Fair Value, Inputs, Level 3 [Member] Cash and cash equivalents Cash and Cash Equivalents [Member] State deferred State Deferred Tax Assets [Member] State Deferred Tax Assets Total Operating Leases, Future Minimum Payments Due Reclassification from accumulated other comprehensive (loss) Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Commercial paper Commercial Paper [Member] Retirement Plan Tax Status [Axis] Retirement Plan Tax Status [Axis] Schedule of selected quarterly financial data Quarterly Financial Information [Table Text Block] Purchased credit impaired finance receivables Financial Asset Acquired with Credit Deterioration [Member] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Tax interest adjustment Deferred Tax Assets, Tax Interest Adjustment Deferred Tax Assets, Tax Interest Adjustment Affiliated Entity Affiliated Entity [Member] Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Cash dividends Payments of Dividends Entity Registrant Name Entity Registrant Name Supplemental non-cash activities Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Other assets Other Assets, Fair Value Disclosure Finance Receivables and Finance Receivable Revenue Recognition Financing Receivable, Held-for-investment [Policy Text Block] Schedule of assets measured at fair value on a non-recurring basis on which impairment charges were recorded Fair Value Measurements, Nonrecurring [Table Text Block] Incurred-but-not-reported Liabilities Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net Statutory Accounting Practices [Line Items] Statutory Accounting Practices [Line Items] Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Increases in tax positions for current years Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions RMBS Residential Mortgage Backed Securities [Member] Reclassification adjustments from accumulated other comprehensive income (loss) Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Disposed of by Sale Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] City Area Code City Area Code Net loss on repurchases and repayments of debt Net loss on repurchases and repayments of debt Gain (Loss) On Repurchase And Repayment Of Debt Instrument Amount of gain (loss) from the difference between the repurchase price of a debt instrument initially issued by the entity and the net carrying amount of the debt at the time of its repurchase, excluding deferred cost write-offs and premiums paid. North Carolina NORTH CAROLINA Schedule of the largest concentrations of net finance receivables Schedules of Concentration of Risk, by Risk Factor [Table Text Block] 2022 Long-term Debt, Maturities, Repayments of Principal in Year Three Operating Segment Segment Reporting, Policy [Policy Text Block] Assets Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Other Principal Forgiveness [Member] Total borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Total Debt Securities, Available-for-sale, Unrealized Loss Position Fixed income securities Fixed Income Securities [Member] Policy and Claim Reserves Insurance Policy Reserves [Policy Text Block] Disclosure of accounting policy for insurance policy reserves. TDR finance charges recognized, held for sale Financing Receivable, Modifications, Interest Income, Held For Sale Financing Receivable, Modifications, Interest Income, Held For Sale Insurance Policy Acquisition Costs Deferred Policy Acquisition Costs, Policy [Policy Text Block] Debt carried at fair value under the fair value option Embedded Derivative, Fair Value of Embedded Derivative Liability Qualitative information about Level 3 inputs for assets measured on a nonrecurring basis Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block] Ohio OHIO Reclassification adjustments from accumulated other comprehensive income Total Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Carrying value Disposal Group Including Discontinued Operation Carry Value Disposal Group Including Discontinued Operation Carry Value Information about plan assets measured at fair value Schedule of Allocation of Plan Assets [Table Text Block] Proceeds from sales and redemptions Available-for-sale Securities, Sold or Redeemed Fair Value Disclosure Represents the fair value of investment securities sold or redeemed. 2016 Short-duration Insurance Contracts, Accident Year 2016 [Member] Due in 1 year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Rent expense Operating Leases, Rent Expense, Net Finance receivables held for sale Finance receivables held for sale Loans Receivable Held-for-sale, Net, Not Part of Disposal Group Other, net Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Gross Carrying Amount Finite-Lived Intangible Assets, Gross Net finance receivables, less unearned insurance premium and claim reserves and allowance for finance receivable losses Loans and Leases Receivable, Net Amount 2021 Lessee, Operating Lease, Liability, Payments, Due Year Two Pennsylvania PENNSYLVANIA Cash equivalents in mutual funds Cash and Cash Equivalents in Mutual Funds, Fair Value Disclosure Represents the fair value of cash and cash equivalents in mutual funds. State State and Local Jurisdiction [Member] Mark-to-market Deferred Tax Assets, Fair Value Adjustment Deferred Tax Assets, Fair Value Adjustment Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Allowance for finance receivable losses Allowance For Finance Receivable Losses [Member] Allowance For Finance Receivable Losses [Member] Net finance receivables that were modified as TDR finance receivables defaulted within the previous 12 months nonperforming Net Finance Receivables That Were Modified As TDR Finance Receivables Defaulted Within The Previous 12 Months Nonperforming [Table Text Block] [Table Text Block]Net finance receivables that were modified as TDR finance receivables defaulted within the previous 12 months nonperforming [Table] Impairments on Investment Securities Investment Impairments Policy [Policy Text Block] Disclosure of accounting policy for assessing, recognizing and measuring impairment of investments in financial assets, including marketable securities (debt and equity securities with readily determinable fair values), investments accounted for under the equity method and cost method, securities borrowed and loaned, and repurchase and resale agreements. Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] TDR net receivables, held for sale Financing Receivable, Modifications, Recorded Investment, Held-For-Sale Financing Receivable, Modifications, Recorded Investment, Held-for-Sale Net gain (impairment) Gain (Loss) on Sale of Accounts Receivable Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] Retirement plan liability adjustments, net of tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Geographical [Domain] Geographical [Domain] Excess tax expense on share-based compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent Title of Individual [Domain] Title of Individual [Domain] Other Other Intangible Assets [Member] Investment securities Total investment securities Investments, Fair Value Disclosure Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Repayment of long-term debt Repayments of Long-term Debt Defined Benefit Plan, Expected Future Benefit Payment [Abstract] Defined Benefit Plan, Expected Future Benefit Payment [Abstract] RSAs Restricted Stock [Member] Settlement Defined Benefit Plan, Benefit Obligation, Payment for Settlement Award Type [Domain] Award Type [Domain] Income tax effect: Other Comprehensive Income (Loss), Tax, Parenthetical Disclosures [Abstract] 30-59 days past due Financial Asset, 30 to 59 Days Past Due [Member] Nonqualified Plan Nonqualified Plan [Member] Plan assets Defined Benefit Plan, Benefit Obligation, Benefits Paid Unsecured Notes Medium-term Notes [Member] Level 1 Fair Value, Inputs, Level 1 [Member] Cost/ Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Contribution of related party to SFC from SFI Increase to total shareholders' equity resulting from contribution Capital Contributions from Parent and Other This element represents the additional paid-in capital or capital from other sources not otherwise defined. Summary of net finance receivables by type and by days delinquent Financing Receivable, Past Due [Table Text Block] Income Statement Location [Axis] Income Statement Location [Axis] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] SMHC Springleaf Mortgage Holding Company [Member] Springleaf Mortgage Holding Company AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] OMH insurance subsidiaries OneMain Insurance Subsidiaries [Member] OneMain Insurance Subsidiaries, American Health and Life Insurance Company and Triton Insurance Company. Share Data: Share Data [Abstract] Deferred tax liabilities: Deferred Tax Liabilities, Gross [Abstract] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Pension/employee benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions Retirement Plan Liabilities Adjustments Unrealized gains (losses) on retirement plan liabilities Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Long-term debt Long-term Debt [Member] Total Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Gross receivables Loans and Leases Receivable, Gross Reserves related to unearned premiums, claims and benefits assumed from non-affiliated insurance companies Assumed Liability for Unpaid Claims and Claims Adjustment Expense Troubled Debt Restructured Finance Receivables Troubled Debt Restructuring [Policy Text Block] Insurance reserves Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Unearned Premiums Reserve Total Unearned Premium and Claim Reserves and Liability of Benefit Reserves Unearned Premium and Claim Reserves and Liability of Benefit Reserves 5.375% SFC Notes due 2029 Senior Notes 5.375 Percent Due 2029 [Member] Senior Notes 5.375 Percent Due 2029 Equity securities: U.S. Defined Benefit Plan, Equity Securities, US [Member] Non-cash incentive compensation from SFH Non-cash incentive compensation Non-Cash Incentive Compensation From Initial Stockholder Non-Cash Incentive Compensation From Initial Stockholder Performing Performing Financial Instruments [Member] Notes receivable from parent Notes receivable from parent Notes Receivable, Related Parties Number of shares outstanding (in shares) Unvested as of beginning of period (in shares) Unvested as of end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Tennessee TENNESSEE Net unrealized gains (losses) on non-credit impaired available-for-sale securities Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax Insurance [Abstract] Insurance [Abstract] Rate reduction Contractual Interest Rate Reduction [Member] Annual rental commitments for leases accounted for as operating leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Texas TEXAS LIBOR London Interbank Offered Rate (LIBOR) [Member] Components of income before income tax expense Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Insurance Insurance Services Revenue Financing Receivable, Troubled Debt Restructuring [Table] Financing Receivable, Troubled Debt Restructuring [Table] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Total liabilities Liabilities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of new volume of the TDR finance receivables held for investment and held for sale Schedule Of New Volume Of The TDR Finance Receivables Held For Investment And Held For Sale [Table Text Block] [Table Text Block] for Schedule of new volume of the TDR finance receivables held for investment and held for sale [Table] Domestic Plan Domestic Plan [Member] Other Other Noncash Income (Expense) 2022 Defined Benefit Plan, Expected Future Benefit Payment, Year Three Interest income on notes receivable Interest Income, Related Party UNITED STATES UNITED STATES Impairment Charges Asset Impairment Charges [Abstract] Basic (in dollars per share) Earnings Per Share, Basic Target asset allocation (as a percent) Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Year One Short-duration Insurance Contracts, Historical Claims Duration, Year One Actuarial loss (gain) Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) TDR average net receivables held for investment and held for sale and finance charges recognized on TDR finance receivables held for investment and held for sale TDR Average Net Receivables Held For Investment And Held For Sale And Finance Charges Recognized On TDR Finance Receivables Held For Investment And Held For Sale [Table Text Block] [Table Text Block] for TDR average net receivables held for investment and held for sale and finance charges recognized on TDR finance receivables held for investment and held for sale [Table] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information Disclosure [Abstract] 2023 Lessee, Operating Lease, Liability, Payments, Due Year Four Virginia VIRGINIA Fair Value Debt Securities, Available-for-sale, Maturity, Fair Value, Rolling Maturity [Abstract] Reconciliation of consolidated balance sheets and results of consolidated statements of operations of SFC to OMH Condensed Balance Sheet [Table Text Block] Allowance for TDR finance receivable losses TDR finance receivables Financing Receivable, Modifications, Allowance For Credit Losses Financing Receivable, Modifications, Allowance for Credit Losses Tangible equity to tangible managed assets (ratio) (less than) Debt Instrument, Covenant Percentage of Tangible Equity to Tangible Managed Assets Represents the percentage of tangible equity to tangible managed assets covenant under the debt agreements. Net balance at end of period Liability for Unpaid Claims and Claims Adjustment Expense, Net Current year Current Year Claims and Claims Adjustment Expense OMFH Notes due 2019 OMFH Notes 2019 [Member] OMFH Notes 2019 [Member] 2020 Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months Other Corporate, Non-Segment [Member] Net deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Indefinite-lived intangible assets Indefinite-lived Intangible Assets (Excluding Goodwill) Revolving period Line Of Credit Facility, Draw Period Line of Credit Facility, Draw Period Fixed income securities: U.S. investment grade Investment Grade Securities [Member] A rating that indicates that a municipal or corporate bond has a relatively low risk of default. Restricted Cash and Cash Equivalents Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Due after 5 years through 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value Dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Non-U.S. government and government sponsored entities Debt Security, Government, Non-US [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Share-based compensation expense, net of forfeitures APIC, Share-based Payment Arrangement, Increase for Cost Recognition 2017 Short-duration Insurance Contracts, Accident Year 2017 [Member] Total assets Assets Assets Estimated aggregate amortization of other intangible assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text 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Schedule of fair value of other securities by type Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] Consumer and Insurance Consumer and Insurance Segment [Member] Represents information pertaining to the consumer and insurance segment which originates and services personal loans and offers credit insurance, non-credit insurance and ancillary products. 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Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Impact of Tax Act Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Ownership percentage by Initial Stockholder Common Stock Ownership Percentage by Related Party The percentage of the entity's common stock owned by the related party. Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Changes in the reserve for unpaid claims and loss adjustment expenses Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block] 2020 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Reductions for losses and loss adjustment expenses paid related to: Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract] Number of payments past due before repossession, period Threshold Payments Past Due For Repossession of Titled Personal Property, Period Threshold Payments Past Due For Repossession of Titled Personal Property, Period Total recognized in net periodic benefit cost and other comprehensive income Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax Restricted cash in mutual funds Restricted Cash in Mutual Funds Fair Value Disclosure Represents the fair value of restricted cash in mutual funds. Schedule of par value and shares authorized Schedule of Par Value and Shares Authorized [Table Text Block] Tabular disclosure of the entity's stock, including par or stated value per share and shares authorized. Funded status, end of period Defined Benefit Plan, Funded (Unfunded) Status of Plan Insurance Premiums Insurance Premiums Revenue Recognition, Policy [Policy Text Block] Schedule of fair value and unrealized losses on investment securities by type and length of time in a continuous unrealized loss position Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block] SFMC Springleaf Finance Management Corporation [Member] Springleaf Finance Management Corporation Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] 2022 Lessee, Operating Lease, Liability, Payments, Due Year Three Preferred stock Preferred Stock [Member] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Retained earnings Retained Earnings (Accumulated Deficit) Weighted Average Discount Rate Operating Lease, Weighted Average Discount Rate, Percent Measurement Input Type [Domain] Measurement Input Type [Domain] Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward] Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward] Investment securities: Investments, Debt and Equity Securities [Abstract] Impairment in other revenue Asset Impairment Charges Unlikely to be Collected Financing Receivable Unlikely to be Collected Financing Receivable [Member] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Tax charges as a result of the Tax Act Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense Number of contractual payments past due Finance Receivable Revenue Recognition Installment of Contractual Payment Past Due after which Finance Charges Accruing Stopped Represents the number of past due contractual payments that occur before the entity stops accruing finance charges. Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Expected future benefit payments Schedule of Expected Benefit Payments [Table Text Block] Reconciliation of Results of Springleaf Finance Corporation to OneMain Holdings, Inc. Business Combination Disclosure [Text Block] Expected long-term rate of return on plan assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets Supplemental cash flow information Supplemental Cash Flow Information [Abstract] Fair value of plan assets Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Carrying amounts of consolidated VIE assets and liabilities Schedule of Variable Interest Entities [Table Text Block] Finance Receivables Held for Sale Financing Receivable, Held-for-sale [Policy Text Block] Finance Receivables Financing Receivables [Text Block] Entity Public Float Entity Public Float 2025-2067 Long-term Debt, Maturities, Repayments of Principal after Year Five Fair value of equity and securities investments Deferred Tax Assets, Investments Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Finance receivables, original term (years) Financing Receivables, Original Term Represents the original term of financing receivables. 6.625% SFC Notes due 2028 Senior Notes 6.625 Percent Due 2028 [Member] Senior Notes 6.625 Percent Due 2028 [Member] Acquired Indefinite-lived Intangible Assets [Line Items] Acquired Indefinite-lived Intangible Assets [Line Items] Schedule of contractual maturities of fixed-maturity available-for-sale securities Investments Classified by Contractual Maturity Date [Table Text Block] Dividends Payable [Line Items] Dividends Payable [Line Items] Share-based compensation expense Share-based Payment Arrangement, Expense Financial Instruments [Domain] Financial Instruments [Domain] Incurred claims and allocated claim adjustment expenses, net of reinsurance Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net Retail Sales Finance Retail Sales Contracts - serviced externally Retail Sales Finance Retail Sales Contracts - serviced externally [Member] Represents information pertaining to Retail Sales Contracts, a subset of the entity's classification of the finance receivable type Retail Sales Finance. Serviced externally. Financing Receivable, Allowance for finance receivable losses [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Reclassification adjustments included in net income, net of tax Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Consolidation Items [Domain] Consolidation Items [Domain] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] Preferred/Special Stock, Shares authorized (in shares) Preferred Stock, Shares Authorized AHL American Health and Life Insurance Company [Member] American Health and Life Insurance Company [Member] Nature of Operations Business Description and Accounting Policies [Text Block] Deferred tax assets Deferred Income Tax Assets, Net Business Acquisition [Axis] Business Acquisition [Axis] Actual return on plan assets, net of expenses Defined 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Reporting Status Entity Current Reporting Status Transfer of net finance receivables held for investment to finance receivables held for sale (prior to deducting allowance for finance receivable losses) Transfer of Portfolio Loans and Leases to Held-for-sale Components of net periodic benefit cost: Defined Benefit Plan, Pension Plan with Project Benefit Obligation in Excess of Plan Assets [Abstract] 12 Months or Longer Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer Diluted (in dollars per share) Earnings Per Share, Diluted Segment Information Segment Reporting Disclosure [Text Block] Restricted cash and restricted cash equivalents (includes restricted cash and restricted cash equivalents of consolidated VIEs of $400 million in 2019 and $479 million in 2018) Restricted cash and restricted cash equivalents Restricted Cash and Cash Equivalents 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2025-2029 Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter Segment to GAAP Adjustment Segment Reconciling Items [Member] Projected benefit obligation: Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Retirement plan liability adjustments Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax Undistributed foreign earnings Undistributed Earnings of Foreign Subsidiaries Balance at beginning of period Balance at end of period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Interest rate during the period Debt Instrument, Interest Rate During Period Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Net actuarial loss (gain) Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax 2023 Operating Leases, Future Minimum Payments, Due in Five Years Allowance for loan losses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses Entity Address, State or Province Entity Address, State or Province 2021 Long-term Debt, Maturities, Repayments of Principal in Year Two Debt Disclosure [Abstract] Debt Disclosure [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Other Other States Not Disclosed [Domain] Other States Not Disclosed [Domain] Net finance receivables, less allowance for finance receivable losses Loans Receivable, Fair Value Disclosure Indefinite-lived Intangible Assets [Line Items] Indefinite-lived Intangible Assets [Line Items] Triton Triton Insurance Company [Member] Represents information pertaining to Triton Insurance Company Document Transition Report Document Transition Report Trading security, equity Equity Securities, FV-NI Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Percentage of number of outstanding shares over number of shares reserved and available for issuance by which number of shares reserved is adjusted (in shares) Share Based Compensation Excess Percentage of Outstanding Shares over Number of Shares Reserved and Available for Issuance by which Shares Reserved is Adjusted Represents the percentage of number of outstanding shares over the number of shares reserved and available for issuance by which number of shares reserved is adjusted. Assets and liabilities measured at fair value Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Retail Sales Finance Credit Card Receivable [Member] Cash and cash equivalents and restricted cash and restricted cash equivalents at beginning of period Cash and cash equivalents and restricted cash and restricted cash equivalents at end of period Total cash and cash equivalents and restricted cash and restricted cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Due after 5 years through 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost OGSC OneMain General Services Corporation [Member] OneMain General Services Corporation Disposal Group Classification [Domain] Disposal Group Classification [Domain] Servicing Liabilities at Fair Value [Line Items] Servicing Liabilities at Fair Value [Line Items] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Share-based compensation expense, net of forfeitures Share-based Payment Arrangement, Noncash Expense Document Annual Report Document Annual Report Statutory Accounting Practices [Table] Statutory Accounting Practices [Table] Ordinary dividends paid Payments of Ordinary Dividends Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Net operating losses and tax credits Deferred Tax Assets, State Taxes Effect of dilutive securities (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Cash paid for amounts included in the measurement of operating lease liabilities Operating Lease, Payments Extraordinary dividends paid Payments Of Extraordinary Dividends Payments Of Extraordinary Dividends Geographical [Axis] Geographical [Axis] Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Services Agreement Services Agreement [Member] The Services Agreement entered into with the related party on December 24, 2012. Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Finance receivable - Personal loan Personal Loans Consumer Loan [Member] Prior years Prior Year Claims and Claims Adjustment Expense Foreign Plan Foreign Plan [Member] Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss) [Line Items] Entity Address, City or Town Entity Address, City or Town Deferred Tax Liabilities, Gross, Total Deferred Tax Liabilities, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Entity Filer Category Entity Filer Category Entity Voluntary Filers Entity Voluntary Filers Weighted average number of shares outstanding: Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Equity [Abstract] Equity [Abstract] Consolidation Items [Axis] Consolidation Items [Axis] Unrealized Gains (Losses) Available-for-Sale Securities Unrealized gains (losses) on available-for-sale securities AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] Net deferred tax assets before valuation allowance Deferred Tax Assets (Liabilities) Gross Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards before allocation of valuation allowances. Default Rate Measurement Input, Default Rate [Member] Fixed maturities, excluding mortgage-backed, asset-backed, and collateralized securities: Marketable Securities [Abstract] Schedule of components of net finance receivables by type Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Referral Agreement Intercompany Agreements [Member] Intercompany Agreements [Member] Long-term debt (includes debt of consolidated VIEs of $7.6 billion in 2019 and $7.5 billion in 2018) Long-term debt Total carrying amount Long-term Debt Retirement Plan Type [Axis] Retirement Plan Type [Axis] 2024 Defined Benefit Plan, Expected Future Benefit Payment, Year Five Claim reserves Balance at beginning of period Balance at end of period Total gross liability for unpaid claims and claim adjustment expense Liability for Claims and Claims Adjustment Expense Statement [Line Items] Statement [Line Items] Statement [Line Items] Accretion Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Allowance for finance receivable losses as a percentage of finance receivables Allowance for finance receivable losses as a percentage of finance receivables Allowance for finance receivable losses as a percentage of finance receivables Impairment loss on transfer to held for sale Business Combination, Integration Related Costs Schedule of allowance for finance receivable losses and net finance receivables by type and by impairment method Financing Receivable, Allowance for Credit Loss [Table Text Block] Amendment Flag Amendment Flag Investment Investment Income, Nonoperating Deferred: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Fair Value, Inputs, Level 1, 2 and 3 Fair Value, Inputs, Level 1, 2 and 3 [Member] Summary of weighted average assumptions Defined Benefit Plan, Assumptions [Table Text Block] Other long-term investments Other Long-term Investments Entity Central Index Key Entity Central Index Key Schedule of statutory net income (loss) for insurance companies Schedule of Statutory Net Income for Insurance Entities by Type of Insurance [Table Text Block] Tabular disclosure of the statutory net income for the insurance entities by type of insurance. Total Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Gross carrying amount and accumulated amortization of finite-lived intangible assets Schedule of Finite-Lived Intangible Assets [Table Text Block] OMH OneMain Holdings, Inc. [Member] OneMain Holdings, Inc. Balance Sheet Location [Domain] Balance Sheet Location [Domain] Merger of SFI with SFC Increase (Decrease) In Stockholders' Equity, Merger Increase (Decrease) In Stockholders' Equity, Merger Discount Rate Measurement Input, Discount Rate [Member] Allowance for finance receivable losses: Loans and Leases Receivable, Net Amount [Abstract] Other Financing Receivable, Allowance for Credit Losses, Other Financing Receivable, Allowance for Credit Losses, Other Common stock, shares authorized (in shares) Common Stock, Shares authorized (in shares) Common Stock, Shares Authorized Components of deferred tax assets and liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Product and Service [Domain] Product and Service [Domain] SFC Springleaf Finance Corporation [Member] Represents Springleaf Finance Corporation, a wholly owned subsidiary of SFI. Type of Adoption [Domain] Type of Adoption [Domain] Financing Receivable, Troubled Debt Restructuring [Line Items] Financing Receivable, Troubled Debt Restructuring [Line Items] Non Affiliated Entity Non Affiliated Entity [Member] Represents information pertaining to the non-affiliated insurance companies. Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Outstanding balance Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Cash contribution from OMH Cash Contributions From Parent And Other Cash Contributions From Parent And Other Withholding tax on share-based compensation Share-based Payment Arrangement, Decrease for Tax Withholding Obligation Variable Rate [Domain] Variable Rate [Domain] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Policyholders' surplus restricting maximum ordinary dividends (as a percent) Maximum Amount of Extraordinary Dividend Distribution Without Prior Approval from Regulatory Agency Percentage of Policyholders Surplus The maximum amount of extraordinary dividends that may be paid or declared in a 12 month period without prior approval of regulatory agencies, as a percentage of policyholder's surplus at the preceding year end. Entity Shell Company Entity Shell Company Geographic Concentration Risk Geographic Concentration Risk [Member] Collectively evaluated for impairment Financing Receivable, Collectively Evaluated for Impairment Withholding tax on share-based compensation and RSUs converted Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Share-based Compensation Plans Share-based Payment Arrangement [Policy Text Block] Total shareholders’ equity Balance at beginning of period Balance at end of period Stockholders' Equity Attributable to Parent Non-cash incentive compensation from SFH APIC, Share-based Payment Arrangement, Other, Increase for Cost Recognition Other assets Other Assets Number of TDR accounts Financing Receivable, Modifications, Subsequent Default, Number of Contracts, Held for Sale Financing Receivable, Modifications, Subsequent Default, Number of Contracts, Held for Sale Liabilities for claims and claim adjustment expenses, net of reinsurance Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net Disposal Group Name [Domain] Disposal Group Name [Domain] TDR gross receivables Financing Receivable, Modifications, Gross Amount Recorded Financing Receivable, Modifications, Gross Amount Recorded Variable Interest Entities Variable Interest Entity Disclosure [Text Block] Collectively evaluated for impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Real estate owned Impairment of Real Estate SCLH Springleaf Consumer Loan Holding Company [Member] Springleaf Consumer Loan Holding Company Equity Component [Domain] Equity Component [Domain] TDR net receivables Financing Receivable, Modifications, Recorded Investment, Including Held-For-Sale Financing Receivable, Modifications, Recorded Investment, Including Held-for-Sale Fair value measurements Loans Held-for-sale, Measurement Input Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Discount rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate PBO and ABO Exceeds Fair Value of Plan Assets Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Common Stock Common stock Common Stock [Member] Other operating expense Other Operating Income (Expense) [Member] Interest rate Interest rate Debt Instrument, Interest Rate, Stated Percentage Real estate owned Other Real Estate Property and casualty Property, Liability and Casualty Insurance Product Line [Member] Amortized Cost Debt Securities, Available-for-sale, Maturity, Amortized Cost, Rolling Maturity [Abstract] Debt issuance costs Debt Issuance Costs, Net ASU 2016-13 Accounting Standards Update 2016-13 [Member] Life and health Life and Accident and Health Insurance Segment [Member] Product line consisting of insurance policies providing death benefits and loss by illness or injury, including but not limited to medical, dental, disability, workmen's compensation and long-term care. Junior subordinated debt Junior Subordinated Debt Junior Subordinated Debt [Member] Current Fiscal Year End Date Current Fiscal Year End Date Income Tax Authority [Domain] Income Tax Authority [Domain] Mortgage-backed, asset-backed, and collateralized securities Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value Granted during the period (in dollars per share) Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Actual asset allocation (as a percent) Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage Additional paid-in capital Additional Paid in Capital, Common Stock Amounts drawn Amount Outstanding Under Securitization Transaction Represents amounts drawn under the securitization transaction as of the balance sheet date. Other-than-temporary impairment credit losses Other than Temporary Impairment Losses, Investments Retirement plan liability adjustments Total recognized in other comprehensive income or loss Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, befo