Investments, Debt and Equity Securities [Abstract] Invested assets on deposit (regulatory deposits) Deposit Assets Invested Assets Pledged As Collateral Invested Assets Pledged As Collateral Invested assets pledged as collateral. Total invested assets on deposit, and pledged as collateral Assets On Deposit And Pledged As Collateral The sum of the fair values, as of the date of each statement of financial position presented, of securities that are restricted as collateral for the payment of related debt obligations, primarily secured borrowings and repurchase agreements, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them. Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Guaranteed Insurance Contract, Type of Benefit [Axis] Guaranteed Insurance Contract, Type of Benefit [Axis] Guaranteed Insurance Contract, Type of Benefit [Domain] Guaranteed Insurance Contract, Type of Benefit [Domain] Ceded Guaranteed Minimum Benefit [Member] Ceded Guaranteed Minimum Benefit [Member] Ceded Guaranteed Minimum Benefit Variable Annuities MLIC [Member] Variable Annuities MLIC [Member] Modified coinsurance agreement between BHNY and MLIC on certain variable annuities. Related Party [Axis] Related Party [Domain] Related Party [Domain] Affiliated Entity [Member] Affiliated Entity [Member] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Broker Dealer Activities [Member] Broker Dealer Activities [Member] Broker Dealer Activities All Services and Transactions Except Broker Dealer Activities [Member] All Services and Transactions Except Broker Dealer Activities [Member] All services and transactions except Broker Dealer activities. Related Party Transaction [Line Items] Related Party Transaction [Line Items] Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Embedded Derivative, Fair Value of Embedded Derivative Asset Embedded Derivative, Fair Value of Embedded Derivative Asset Embedded Derivative, Gain (Loss) on Embedded Derivative, Net Modified Coinsurance Basis Percent Modified Coinsurance Basis Percent Percentage of business ceded on a modified coinsurance basis. Assets Assets Liabilities Liabilities Revenue from Related Parties Revenue from Related Parties Premiums and Other Receivables, Net Premiums and Other Receivables, Net Related Party Transaction, Expenses from Transactions with Related Party Related Party Transaction, Expenses from Transactions with Related Party Reinsurance Disclosures [Abstract] Schedule Of Effect Of Reinsurance On Income Statement [Table] Schedule Of Effect Of Reinsurance On Income Statement [Table] Schedule Of Effect Of Reinsurance On Income Statement. Affiliated Entity Reinsurance Premiums for Insurance Companies, by Product Segment [Axis] Products and Services [Axis] Reinsurance Premiums for Insurance Companies, by Product Segment [Domain] Products and Services [Domain] Ceded Ceded Reinsurance [Member] Amounts passed on to another insurer (the reinsurer) that are all or part of the financial interests of insurance policies written by an insurer (the ceding insurer) or assumed by an insurer/reinsurer with the object of reducing the cedent's possible liability by sharing with the reinsurer the insurance liability, premiums, and losses from the reinsured business. Effects of Reinsurance [Line Items] Effects of Reinsurance [Line Items] Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Amortization Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Amortization Premiums: Premiums Earned [Abstract] Premiums Earned [Abstract] Reinsurance ceded Ceded Premiums Earned Net premiums Premiums Earned, Net Universal life and investment-type product policy fees: Fees and Commissions [Abstract] Reinsurance ceded Ceded Insurance Commissions And Fees Universal life and investment-type product policy fees ceded to other insurers as a result of reinsurance agreements. Net universal life and investment-type product policy fees Insurance Commissions and Fees Other revenues: Component of Operating Income [Abstract] Reinsurance ceded Other Income Ceded Fees, commissions and other revenues ceded to other insurers as a result of reinsurance agreements. Other revenues Other Income Other expenses: Other Expenses [Abstract] Net other expenses Operating Expenses Interest credited to policyholder account balances: Interest Credited To Policyholder Account Balances [Abstract] -- None. No documentation exists for this element. -- Net interest credited to policyholder account balances Interest Credited to Policyholders Account Balances Policyholder benefits and claims: Policyholder Benefits and Claims Incurred [Abstract] Reinsurance ceded Policyholder Benefits and Claims Incurred, Ceded Net policyholder benefits and claims Policyholder Benefits and Claims Incurred, Net Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Fixed maturity securities Debt Securities [Member] U.S. corporate Domestic Corporate Debt Securities [Member] U.S. government and agency US Treasury and Government [Member] Foreign corporate Foreign Corporate Debt Securities [Member] RMBS Residential Mortgage Backed Securities [Member] CMBS Commercial Mortgage Backed Securities [Member] State and political subdivision US States and Political Subdivisions Debt Securities [Member] ABS Asset-backed Securities [Member] Foreign government Foreign Government Debt Securities [Member] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Available-for-sale Securities [Abstract] Available-for-sale Securities [Abstract] Amortized cost Available-for-sale Debt Securities, Amortized Cost Basis Gross Unrealized Gain Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Temporary Loss Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Gross Unrealized OTTI Loss Other Than Temporary Impairments On Debt Securities Transferred To Other Comprehensive Income Loss Other-than-temporary impairments on fixed maturity securities transferred to other comprehensive income loss. Available-for-sale Securities, Debt Securities Organization, Consolidation and Presentation of Financial Statements [Abstract] Number of segments Number of Reportable Segments Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Parent percentage [Member] Parent percentage [Member] Percentage of Parent shares. Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Spinoff [Member] Spinoff [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Instrument [Line Items] Restructuring Cost and Reserve [Line Items] Planned Common Stock Distribution by Parent Common Stock Distribution by Parent Percentage of common stock that parent intends to distribute Common Stock, Shares, Issued Common Stock Retained by Parent Percentage of common stock retained by parent. Fair Value Disclosures [Abstract] Fair Value, by Balance Sheet Grouping [Table] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Carrying Value Reported Value Measurement [Member] Estimated Fair Value Estimate of Fair Value Measurement [Member] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Assets Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Mortgage loans Fair Value Mortgage Loans Net Not On Recurring Basis Total amount of mortgage loans not valued on a recurring basis as of the balance sheet date. Premiums, reinsurance and other receivables Receivables, Fair Value Disclosure Liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Policyholder account balances Policyholder Contract Deposits, Fair Value Disclosure Fair value portion of the liability of policyholders for deposits held under the terms of insurance contracts. Components of Sales or Disposals of Fixed Maturity and Equity Securities Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] Proceeds Proceeds from Sale of Insurance Investments Gross investment gains Available-for-sale Securities, Gross Realized Gains Gross investment losses Available-for-sale Securities, Realized Losses, Excluding Other than Temporary Impairments Total OTTI losses recognized in earnings: Other than Temporary Impairment Losses, Investments [Abstract] Net investment gains (losses) Realized Investment Gains (Losses) Equity [Abstract] Equity Stockholders' Equity Note Disclosure [Text Block] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Less than 65% Mortgage Loans By Credit Quality Indicator Range One [Member] Mortgage loans with a loan-to-value ratio of less than 65%. 65% to 75% Mortgage Loans By Credit Quality Indicator Range Two [Member] Mortgage loans with a loan-to-value ratio of 65% to 75%. Mortgage Loans on Real Estate [Line Items] Mortgage Loans on Real Estate [Line Items] Agricultural Mortgage Loans - by Credit Quality Indicator: Agricultural Mortgage Loans By Credit Quality Indicator [Abstract] Agricultural mortgage loans, by credit quality indicator. Recorded Investment Loans Receivable, Gross, Commercial, Agricultural % of Total Loans Receivable Commercial Agricultural Mortgage Percentage Reflects the percentage of the gross carrying amount of unpaid loans issued to agricultural businesses to provide financing on existing land or a building, which, pursuant to terms of the underlying debt instrument, are secured at a minimum but possibly exclusively by that real property to the total for all commercial agricultural mortgage loans. Mortgages represent permanent financing, and are issued to replace previously existing mortgages or pay off acquisition, development and construction loans, or to provide cash to the borrower. Securities holdings exposure in single issuer greater than stated percentage of Company's equity Concentration Risk, Percentage Investments in any counterparty that were greater than 10% of equity Fair Value, Concentration of Risk, Investments Commitments and Contingencies Disclosure [Abstract] Contingencies, Commitments and Guarantees Commitments Contingencies and Guarantees [Text Block] Cash equivalents Cash Equivalents, at Carrying Value Investment Income [Table] Investment Income [Table] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Securities Investment Securities Investment [Member] Mortgage loans Mortgages [Member] Cash, cash equivalents and short-term investments Cash and Cash Equivalents [Member] Other Other Investments [Member] Net Investment Income [Line Items] Net Investment Income [Line Items] Gross Investment Income, Operating Gross Investment Income, Operating Less: Investment expenses Investment Income, Investment Expense Net investment income Net Investment Income Insurance [Abstract] Insurance Insurance Disclosure [Text Block] Fair Value Inputs, Assets, Quantitative Information [Table] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] U.S. and foreign corporate Corporate Debt Securities [Member] CMBS ABS Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Embedded Derivative Financial Instruments [Member] Embedded Derivative Financial Instruments [Member] Maximum Maximum [Member] Weighted Average Weighted Average [Member] Valuation Technique [Axis] Valuation Technique [Domain] Market Approach Valuation Technique Market Approach Valuation Technique [Member] Income Approach Valuation Technique Income Approach Valuation Technique [Member] Mortality Rates Range [Axis] Mortality Rates Range Mortality Rates Range [Domain] Mortality Rates Range Ages 0 - 40 Mortality Rates Range One [Member] Mortality Rates Range One Ages 41 - 60 Mortality Rates Range Two [Member] Mortality Rates Range Two Ages 61 - 115 Mortality Rates Range Three [Member] Mortality Rates Range Three Lapse Rates Duration Range [Axis] Lapse Rates Duration Range Lapse Rates Duration Range [Domain] Lapse Rates Duration Range Durations 1 - 10 Lapse Rates Duration Range One [Member] Lapse Rates Duration Range One Durations 11 - 20 Lapse Rates Duration Range Two [Member] Lapse Rates Duration Range Two Durations 21 - 116 Lapse Rates Duration Range Three [Member] Lapse Rates Duration Range Three Fair Value Inputs, Assets, Quantitative Information [Line Items] Fair Value Inputs, Offered Quotes Matrix Pricing Fair Value Inputs, Offered Quotes Matrix Pricing Matrix Pricing - Price at which a dealer is willing to buy an instrument, used as an input to measure fair value. Quoted prices Fair Value Inputs, Quoted prices Quoted prices Mortality Rate Long-Duration Contracts, Assumptions by Product and Guarantee, Mortality Rate Lapse Rate Long-Duration Contracts, Assumptions by Product and Guarantee, Lapse Rate Utilization rates Fair Value Inputs Utilization Rates Fair value inputs utilization rates. Withdrawal rates Fair Value Inputs Withdrawal Rates Fair value inputs withdrawal rates. Long-term equity volatilities Fair Value Inputs Long Term Equity Volatilities Fair value inputs long-term equity volatilities. Nonperformance risk spread Fair Value Inputs, Counterparty Credit Risk Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Structured securities Structured Securities [Member] Structured Securities. Net Embedded Derivatives Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance, beginning of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Total realized/unrealized gains (losses) included in net income (loss) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Total realized/unrealized gains (losses) included in AOCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Transfers into Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Balance, end of period Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Balance, beginning of period Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Total realized/unrealized gains (losses) included in net income (loss) Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings Total realized/unrealized gains (losses) included in AOCI Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) Purchases Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases Sales Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales Issuances Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Issues Settlements Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements Transfers into Level 3 Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3 Transfers out of Level 3 Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3 Balance, end of period Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss) Related Party Transaction, Due from (to) Related Party [Abstract] Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party Changes In Net Unrealized Investment Gains Losses Included In Accumulated Other Comprehensive Loss [Abstract] Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract] Balance, beginning of period Net Unrealized Investment Gains Losses Included In Accumulated Other Comprehensive Income Loss Attributable To Company This item presents net unrealized investment gains (losses) attributable to the Company. Unrealized investment gains (losses) during the period Changes In Net Unrealized Investment Gains Losses Related To Unrealized Investment Gains Losses During Period This item presents the increase (decrease) in net unrealized investment gains (losses) related to unrealized investment gains (losses) during the period. Unrealized investment gains (losses) relating to [Abstract] Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract] DAC and DSI Changes In Net Unrealized Investment Gains Losses Related To Dac And Voba This item presents the increase (decrease) in net unrealized investment gains (losses) related to DAC and VOBA. Deferred income tax benefit (expense) Income Tax Expense On Change In Unrealized Gain Or (Loss) This item represents the tax effects occurring during the period which are related to the net unrealized gain (loss) resulting from changes in the fair [carrying] value during the period of available-for-sale securities and from changes in certain insurance related assets and liabilities. Such tax affects would have been charged or credited directly to other comprehensive income or to related components of shareholders' equity. Balance, end of period Change in net unrealized investment gains (losses) Changes In Net Unrealized Investment Gains Losses Excluding Portion Attributable To Noncontrolling Interests This item presents the increase (decrease) in net unrealized investment gains (losses) excluding portion attributable to noncontrolling interests. Fair Value Assets And Liabilities Transferred Between Levels 1 And Levels 2 Fair Value Assets And Liabilities Transferred Between Levels 1 And Levels 2 Amount of transfers of assets and liabilities measured on a recurring basis between Levels 1 and Levels 2 of the fair value hierarchy. Other Income and Expenses [Abstract] Other Expenses Schedule of Other Operating Cost and Expense, by Component [Table Text Block] Components of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income (Loss) Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Guarantees related to Annuity, Universal and Variable Life Contracts Schedule of Net Amount of Risk by Product and Guarantee [Table Text Block] Compensation Labor and Related Expense Commissions Noninterest Expense Commission Expense Volume-related costs Cost of Services, Overhead Related party expenses on ceded reinsurance Interest Expense, Related Party Capitalization of DAC Deferred Policy Acquisition Costs, Capitalization Capitalization of deferred policy acquisition costs recorded on the statement of operations Premium taxes, licenses and fees Direct Taxes and Licenses Costs Professional services Professional Fees Rent and related expenses Operating Leases, Rent Expense Other Other General and Administrative Expense Total other expenses Document and Entity Information [Abstract] Document and Entity Information. Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Document Fiscal Year Focus Document Fiscal Period Focus Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Equity Components [Axis] Equity Component [Domain] Unrealized Investment Gains (Losses), Net of Related Offsets Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Unrealized Gains (Losses) on Derivatives Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Foreign currency swaps Currency Swap [Member] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Net investment gains (losses) Gain (Loss) on Investments Net derivative gains (losses) Gain (Loss) on Derivative Instruments, Net, Pretax Total operating expenses Income Tax Expense (Benefit) Net income (loss) Net Income (Loss) Available to Common Stockholders, Basic Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Net derivative gains (losses) Net Derivative Gain (Loss) [Member] Net Derivative Gain Loss. Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Net derivatives gains (losses) Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Metlife Investment Advisors, LLC [Member] Metlife Investment Advisors, LLC [Member] Metlife Investment Advisors, LLC [Member] Segment Reporting [Abstract] Reconciliation of Revenue from Segments to Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Segment Reconciling Items Segment Reconciling Items [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Annuities Annuities [Member] Annuities. Life Life [Member] Life. Corporate & Other Corporate and Other [Member] Segment Reporting, Revenue Reconciling Item [Line Items] Segment Reporting, Revenue Reconciling Item [Line Items] Revenues Revenues Recurring Fair Value Measurements Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Fair Value Inputs, Quantitative Information Fair Value Inputs, Assets, Quantitative Information [Table Text Block] Fair Value Inputs, Quantitative Information Fair Value Inputs, Liabilities, Quantitative Information [Table Text Block] Fair Value, Measured on Recurring Basis, Unobservable Input Reconciliation Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Fair Value of Financial Instruments Carried at Other Than Fair Value Fair Value, by Balance Sheet Grouping [Table Text Block] Derivative [Table] Derivative [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Net Derivative Gain (Loss) [Member] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedging [Member] Cash Flow Hedging [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Derivative Contract [Domain] Equity Option [Member] Equity Option [Member] Foreign Exchange Contract [Member] Foreign Exchange Contract [Member] Credit Risk Contract [Member] Credit Risk Contract [Member] Equity Contract [Member] Equity Contract [Member] Embedded Derivative Financial Instruments [Member] Interest Rate Contract [Member] Position [Axis] Position [Axis] Position [Domain] Position [Domain] Derivative [Line Items] Derivative [Line Items] Derivative assets Derivative Asset, Fair Value, Gross Asset Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net Derivative, Gain (Loss) on Derivative, Net Derivative, Gain (Loss) on Derivative, Net Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Gains Losses Deferred In Accumulated Other Comprehensive Income Loss On Derivatives Effective Portion Gains Losses Deferred In Accumulated Other Comprehensive Income Loss On Derivatives Effective Portion The current period gain (loss) recognized in other comprehensive income related to the effective portion of derivatives designated in cash flow hedges. Other Revenues and Other Expenses Other Income and Other Expense Disclosure [Text Block] Distribution Fees Distribution Fees Statement of Cash Flows [Abstract] Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Sales, maturities and repayments of fixed maturity securities Proceeds from Sale and Maturity of Available-for-sale Securities Sales, maturities and repayments of mortgage loans Proceeds from Sale and Collection of Mortgage Notes Receivable Purchases of fixed maturity securities Payments to Acquire Available-for-sale Securities, Debt Purchases of mortgage loans Payments to Acquire Mortgage Notes Receivable Cash received in connection with freestanding derivatives Cash received in connection with freestanding derivatives The cash inflow provided by derivative instruments during the period, which are classified as investing activities, including both hedging and non-hedging instruments. Cash paid in connection with freestanding derivatives Cash Paid In Connection With Freestanding Derivatives The cash outflow provided by derivative instruments during the period, which are classified as investing activities, including both hedging and non-hedging instruments. Net change in short-term investments Payments for (Proceeds from) Short-term Investments Net change in other invested assets Net Change In Other Invested Assets The net cash outflow (inflow) from other investing activities including derivative instruments, leveraged leases and other invested assets. Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Policyholder account balances: Deposits Proceeds from Annuities and Investment Certificates Policyholder account balances: Withdrawals Repayments of Annuities and Investment Certificates Net change in payables for collateral under derivative transactions Net change in payables for collateral under securities loaned and other transactions Net change in payables for collateral under securities loaned and other transactions. Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Change in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, cash equivalents and restricted cash, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash, end of period Supplemental disclosures of cash flow information Supplemental Cash Flow Information [Abstract] Net cash paid (received) for income tax Income Taxes Paid, Net Effects of Reinsurance [Table] Effects of Reinsurance [Table] Related Party Transactions, by Related Party [Axis] Assets: Assets [Abstract] Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Premiums, reinsurance and other receivables Deferred policy acquisition costs and value of business acquired Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net Liabilities: Liabilities [Abstract] Future policy benefits Liability for Future Policy Benefits Policyholder account balances Policyholder Contract Deposits Other policy-related balances Other Policy-Related Balances Liability as of the balance sheet date to the policyholders for funds held that are returnable under the terms of insurance contracts that were not separately reported. Also includes unearned premiums. Other Liabilities Derivatives Designated as Hedging Instruments: Designated as Hedging Instrument [Member] Derivatives Not Designated or Not Qualifying as Hedging Instruments: Net investment income Investment Income [Member] Total earned income Interest Income (Expense), Nonoperating, Net Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Recurring Fair Value, Measurements, Recurring [Member] State and political subdivision Foreign government Interest Rate Contract [Member] Foreign currency exchange rate contracts Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets [Abstract] Assets, Fair Value Disclosure [Abstract] Short-term Investments Short-term Investments Embedded derivatives within asset host contracts Separate account assets Separate Account Assets Total assets Assets, Fair Value Disclosure Liabilities [Abstract] Liabilities, Fair Value Disclosure [Abstract] Derivative liabilities Derivative Liability, Fair Value, Gross Liability Embedded derivatives within liability host contracts Embedded Derivative, Fair Value of Embedded Derivative Liability Total liabilities Financial and Nonfinancial Liabilities, Fair Value Disclosure Components of Net Derivatives Gains (Losses) Gain (Loss) on Derivative Instruments, Net, Pretax [Abstract] Embedded derivatives gains (losses) Total net derivative gains (losses) Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Line Items] Balance, beginning of period Accumulated Other Comprehensive Income (Loss), Net of Tax OCI before reclassifications Other Comprehensive Income (Loss), before Reclassifications, before Tax Deferred income tax benefit (expense) Other Comprehensive Income (Loss) before Reclassifications, Tax AOCI before reclassifications, net of income tax Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amounts reclassified from AOCI Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Deferred income tax benefit (expense) Reclassification from AOCI, Current Period, Tax Amounts reclassified from AOCI, net of income tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Balance, end of period Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Estimated increase (decrease) in adjusted earnings due to new methodology Estimated increase (decrease) in adjusted earnings due to new methodology Estimated increase (decrease) in pretax adjusted earnings due to new capital allocation methodology Estimated increase (decrease) in total assets due to new methodology Estimated increase (decrease) in total assets due to new methodology Estimated increase (decrease) in total assets due to new capital allocation methodology Total assets Components of net unrealized investment gains (losses) included in accumulated other comprehensive loss Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments and Tax [Abstract] Fixed maturity securities Net Unrealized Investment Gains Losses Included In Accumulated Other Comprehensive Income Loss Related To Debt Securities That Were Temporarily Impaired This item presents net unrealized investment gains (losses) related to fixed maturity securities that were temporarily impaired. Derivatives Net Unrealized Investment Gains Losses Included In Accumulated Other Comprehensive Income Loss Related To Derivatives This item presents net unrealized investment gains (losses) related to derivatives. Subtotal Net Unrealized Investment Gains (Losses) Included In Accumulated Other Comprehensive Income (Loss) Subtotal Of Investment Gains (Losses) Components This item presents the subtotal of net unrealized investment gains (losses) relating to fixed maturity securities, equity securities, derivatives and other investments. DAC and DSI Net Unrealized Investment Gains Losses Included In Accumulated Other Comprehensive Income Loss Allocated From Dac And Voba This item presents net unrealized investment gains (losses) allocated from DAC and VOBA. Deferred income tax benefit (expense) Net Unrealized Investment Gains Losses Included In Accumulated Other Comprehensive Income Loss Related To Deferred Income Tax Benefit Expense This item presents net unrealized investment gains (losses) related to deferred income tax benefit (expense). Net unrealized investment gains (losses) Net Unrealized Investment Gains Losses Included In Accumulated Other Comprehensive Income Loss This item presents net unrealized investment gains (losses). Major Types of Debt and Equity Securities [Axis] Gain (Loss) on Investments [Line Items] Gain (Loss) on Investments [Line Items] Marketable Securities, Gain (Loss) [Abstract] Marketable Securities, Gain (Loss) [Abstract] Fixed maturity securities — net gains (losses) on sales and disposals Gain (Loss) on Sale of Debt Investments Other net investment gains (losses): Realized Investment Gains (Losses) [Abstract] Mortgage loans Gain (Loss) on Sales of Loans, Net Other Gain (Loss) on Sale of Investments Total net investment gains (losses) Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Carrying Amount Asset Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets Carrying Amount Liability Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accrued Liabilities [Member] Accrued Liabilities [Member] Transaction Type [Axis] Transaction Type [Axis] Transaction [Domain] Transaction [Domain] Over the Counter [Member] Over the Counter [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Derivative, Collateral, Right to Reclaim Securities Derivative, Collateral, Right to Reclaim Securities Cash collateral on derivative assets Derivative Asset, Collateral, Obligation to Return Cash, Offset Cash collateral on derivative assets Derivative, Collateral, Obligation to Return Cash Derivative, Net Liability Position, Aggregate Fair Value Derivative, Net Liability Position, Aggregate Fair Value Derivative, Collateral, Obligation to Return Securities Derivative, Collateral, Obligation to Return Securities Designated as Hedging Instrument [Member] Currency Swap [Member] Guaranteed Insurance Contract, Type of Guarantee [Axis] Guaranteed Insurance Contract, Type of Guarantee [Axis] Guaranteed Insurance Contract, Type of Guarantee [Domain] Guaranteed Insurance Contract, Type of Guarantee [Domain] Direct And Assumed Guaranteed Minimum Benefit [Member] Direct And Assumed Guaranteed Minimum Benefit [Member] Direct & Assumed Guaranteed Minimum Benefit Member. Ceded guaranteed minimum benefits Nonperformance Risk [Member] Nonperformance Risk [Member] Non-performance Risk Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis] Cash Flow Hedges Interest Income (Expense), Nonoperating, Net Derivative Instrument Detail [Abstract] Derivative Instrument Detail [Abstract] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax Securities collateral received which the company is permitted to sell or repledge, amount that has been sold or repledged Customer Securities for which Entity has Right to Sell or Repledge, Fair Value of Securities Sold or Repledged Net Investment Income Derivatives in cash flow hedging relationships Effect of Cash Flow Hedges on Results of Operations [Abstract] Amount of Gains (Losses) Deferred in AOCI on Derivatives Net Amount at Risk, by Product and Guarantee [Table] Variable Annuity Guarantees Variable Annuity [Member] Guaranteed Death Benefits Guaranteed Minimum Death Benefit [Member] Guaranteed Annuitization Benefits Annuitization Benefit [Member] Net Amount at Risk by Product and Guarantee [Line Items] Total account value Net Amount at Risk by Product and Guarantee, General Account Value Separate account value Net Amount at Risk by Product and Guarantee, Separate Account Value Net amount at risk Net Amount at Risk by Product and Guarantee, Net Amount at Risk Average attained age of contract holders Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age Schedule of Fair Value, Off-balance Sheet Risks [Table] Financial Instrument [Axis] Financial Instruments [Domain] Mortgage Loan Commitments Loan Origination Commitments [Member] Commitments to Extend Credit [Member] Commitments to Extend Credit [Member] Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Guarantor Obligations, Current Carrying Value Guarantor Obligations, Current Carrying Value Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability Statement of Financial Position [Abstract] Statement [Table] Statement [Line Items] Assets Amortized cost of fixed maturity securities available-for-sale Mortgage loans valuation allowances Allowance for Loan and Lease Losses, Real Estate Liabilities Stockholder's Equity Stockholders' Equity Attributable to Parent [Abstract] Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Schedule of Securities by Percent [Axis] Schedule of Securities by Percent [Axis] Schedule Of Securities By Percent Axis. Securities By Percent [Domain] Securities By Percent [Domain] Securities By Percent. Twenty Percent Or More Twenty Percent Or More [Member] 20% or more Member. Schedule of Securities by Duration [Axis] Schedule of Securities by Duration [Axis] Schedule Of Securities By Duration Axis. Securities by Duration [Domain] Securities by Duration [Domain] Securities By Duration. Six Months Or Greater Six Months Or Greater [Member] Six months or greater. Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss) before Taxes Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss) before Taxes Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Fixed maturity securities available for sale with gross unrealized loss of equal to or greater than stated percentage Fixed Maturities Available For Sale With Gross Unrealized Loss Of Equal To Or Greater Than Stated Percentage Investment disclosure of fixed maturity securities available-for-sale with gross unrealized loss of equal to or greater than stated percentage. Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Investments: Investments [Abstract] Fixed maturity securities available-for-sale, at estimated fair value (amortized cost: $2,233,879 and $2,165,134, respectively) Mortgage loans (net of valuation allowances of $1,817 and $1,747, respectively) Mortgage Loans on Real Estate Other invested assets, at estimated fair value Other Investments Total investments Investments Cash and cash equivalents, principally at estimated fair value Cash and Cash Equivalents, at Carrying Value Accrued investment income Accrued Investment Income Receivable Other assets Other Assets Total assets Liabilities and Equity Liabilities and Equity [Abstract] Payables for collateral under derivative transactions Payables For Collateral Under Securities Loaned And Other Transactions The amount of cash received as security in return for loaning securities to another party and the amount of the obligation to return cash collateral under master netting arrangements that have not been offset against net derivative instrument positions. Accrued Income Taxes Accrued Income Taxes Deferred income tax liability Deferred Tax Liabilities, Net Other liabilities Separate account liabilities Separate Accounts, Liability Total liabilities Contingencies, Commitments and Guarantees (Note 9) Commitments and Contingencies Common stock, par value $10 per share; 200,000 shares authorized, issued and outstanding Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income (loss) Total stockholder's equity Stockholders' Equity Attributable to Parent Total liabilities and stockholder's equity Liabilities and Equity Direct guaranteed minimum benefits Direct Guaranteed Minimum Benefit [Member] Direct Guaranteed Minimum Benefit Fixed annuities with equity indexed returns Other Embedded Derivatives [Member] Other Embedded Derivatives Premiums, reinsurance and other receivables Receivables [Member] Portion of the balance sheet assertion valued at fair value by the entity. Includes disclosure of claims held for amounts due a company. Examples include trade accounts receivables, notes receivables, loans receivables. Policyholder account balances Policyholder Account Balances [Member] Policyholder Account Balances. Embedded Derivative, Fair Value of Embedded Derivative, Net [Abstract] Embedded Derivative, Fair Value of Embedded Derivative, Net [Abstract] Gains (losses) from foreign currency transactions Foreign Currency Transaction Gain (Loss), Realized Commercial Loans Receivable, Gross, Commercial, Mortgage Percentage of loans receivable on commercial mortgage loans Percentage Of Loans Receivable Commercial Mortgage To Mortgage Loans On Real Estate Commercial And Consumer Net Percentage of Commercial Mortgage Loans Receivable to total Mortgage Loans on Real Estate. Agricultural Percentage of loans receivable on agricultural mortgage loans Percentage Of Loans Receivable Commercial Agricultural To Mortgage Loans On Real Estate Commercial And Consumer Net Percentage of Commercial Agricultural Loans Receivable to total Mortgage Loans on Real Estate. Subtotal Mortgage Loans Held For Investment The balance represents the amount of loans that are secured by real estate mortgages. Percentage of loans receivable on subtotal Percentage Of Mortgage Loans Held For Investment To Mortgage Loans On Real Estate Commercial And Consumer Net Percentage of Mortgage Loans Held For Investment to total Mortgage Loans on Real Estate. Valuation allowances (1) Percentage of loans receivable on valuation allowances Percentage Of Allowance For Loan And Lease Losses Real Estate To Mortgage Loans On Real Estate Commercial And Consumer Net Percentage of Allowance For Loan And Lease Losses on Real Estate to total Mortgage Loans on Real Estate. Total mortgage loans, net Percentage Of Mortgage Loans On Real Estate To Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Mortgage Loans On Real Estate To Mortgage Loans On Real Estate Commercial And Consumer Net Percentage of Mortgage Loans On Real Estate to total Mortgage Loans on Real Estate. Fair Value Fair Value Disclosures [Text Block] Income Statement and Other Comprehensive Income Location [Domain] Net Derivative Gains (Losses) Recognized for Derivatives Available-for-sale Securities, Debt Maturities [Abstract] Available-for-sale Securities, Debt Maturities [Abstract] Amortized cost, Due in One Year or Less Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Amortized cost, Due After One Year Through Five Years Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Amortized cost, Due After Five Years Through Ten Years Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Amortized cost, Due After Ten Years Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Structured Securities Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis Estimated fair value, Due in One Year or Less Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Estimated fair value, Due After One Year Through Five Years Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Estimated fair value, Due After Five Years Through Ten Years Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Estimated fair value, Due After Ten Years Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Structured Securities Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value Income Statement [Abstract] Revenues Revenues [Abstract] Premiums Universal life and investment-type product policy fees Net investment gains (losses): Gain (Loss) on Investments [Abstract] Other net investment gains (losses) Gain (Loss) on Sale of Other Investments Total net investment gains (losses) Total revenues Expenses Benefits, Losses and Expenses [Abstract] Expenses Policyholder benefits and claims and policyholder dividends Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Amortization Other expenses Total expenses Benefits, Losses and Expenses Income (loss) before provision for income tax Provision for income tax expense (benefit) Net income (loss) Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Estimated Fair Value of Derivative Assets and Liabilities after Master Netting Agreements and Cash Collateral Offsetting Liabilities [Table Text Block] Estimated Fair Value of Derivative Assets and Liabilities after Master Netting Agreements and Cash Collateral Offsetting Assets [Table Text Block] Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Derivatives, Methods of Accounting, Derivatives Not Designated or Qualifying as Hedges [Policy Text Block] Derivatives, Methods of Accounting, Derivatives Not Designated or Qualifying as Hedges [Policy Text Block] Components of Net Derivatives Gains (Losses) Derivative Instruments, Gain (Loss) [Table Text Block] Derivative Instruments and Hedging Activities Disclosure [Text Block] Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Continuous Gross Unrealized Loss and OTTI Loss for Fixed Maturity and Equity Securities Available-for-Sale Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract] Less than 12 months Estimated Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Total number of securities in an unrealized loss position less than 12 months Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year Less than 12 Months Gross Unrealized Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Equal to or Greater than 12 Months Estimated Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Total number of securities in an unrealized loss position equal to or greater than 12 months Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year Equal to or Greater than 12 Months Gross Unrealized Loss Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Segment Information Segment Reporting Disclosure [Text Block] Related Party Transactions Related Party Transactions Disclosure [Text Block] Statement [Table] Liabilities for Guarantees on Long-Duration Contracts, Guarantee Type [Axis] Guaranteed Insurance Benefit Type [Domain] Statement [Line Items] Reinsurance Disclosures [Abstract] Net derivatives gains (losses) Ceded Premiums Earned Policyholder Benefits and Claims Incurred, Ceded Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract] Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract] Variable interest, consoldidated carrying amount assets and liabilities net Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net Mortgage Loans on Real Estate Schedule [Table] Mortgage Loans on Real Estate Schedule [Table] Debt Service Coverage Ratio by Range [Axis] Debt Service Coverage Ratio by Range [Axis] Debt Service Coverage Ratio By Range Axis. Debt Service Coverage Ratio by Range [Domain] Debt Service Coverage Ratio by Range [Domain] Debt Service Coverage Ratio By Range Domain. Greater than 1.20x Debt Service Coverage Ratio Range One [Member] Mortgage loans with a debt service coverage ratio of more than 1.20x. 1.00x - 1.20x Debt Service Coverage Ratio Range Two [Member] Mortgage loans with a debt service coverage ratio of 1.00x - 1.20x. 76% to 80% Mortgage Loans By Credit Quality Indicator Range Three [Member] Mortgage loans with a loan-to-value ratio of 76% to 80%. Commercial mortgage loans % of Total Loans Receivable Commercial Mortgage Percentage Reflects the percentage of the gross carrying amount of unpaid loans issued to businesses to provide financing on existing land or a building, which, pursuant to terms of the underlying debt instrument, are secured at a minimum but possibly exclusively by that real property to the total for all commercial mortgage loans. Mortgages represent permanent financing, and are issued to replace previously existing mortgages or pay off acquisition, development and construction loans, or to provide cash to the borrower. Schedule of Credit Derivatives [Table] Schedule of Credit Derivatives [Table] Credit Derivatives [Line Items] Credit Derivatives [Line Items] Estimated Fair Value Liabilities Estimated Fair Value of Derivatives in Net Liability Position Non-Income Producing Debt Securities [Member] Non-Income Producing Debt Securities [Member] Non-income producing debt securities. Available-for-sale Securities, Debt Securities Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax Reinsurance Disclosure [Line Items] Reinsurance Disclosure [Line Items] -- None. No documentation exists for this element. -- Schedule of Related Party Transactions [Table Text Block] Schedule of Related Party Transactions [Table Text Block] Effects of reinsurance Effects of Reinsurance [Table Text Block] Statement of Stockholders' Equity [Abstract] Statement, Equity Components [Axis] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) AOCI Including Portion Attributable to Noncontrolling Interest [Member] Beginning Balance Other comprehensive income (loss), net of income tax Other Comprehensive Income (Loss), Net of Tax Ending Balance Operating Segments Operating Segments [Member] Pre-tax adjusted earnings Provision for income tax expense (benefit) Adjusted earnings Operating Income (Loss) Net investment gains (losses) Net derivative gains (losses) Other adjustments to net income Interest revenue Interest Revenue (Expense), Net Use of Estimates Use of Estimates, Policy [Policy Text Block] Consolidation of Subsidiaries Consolidation, Policy [Policy Text Block] Investments Investment, Policy [Policy Text Block] Derivatives Derivatives, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Interest Rate Cap [Member] Interest Rate Cap [Member] Gross Notional Amount Derivative, Notional Amount Estimated Fair Value Assets Fixed Maturity and Equity Securities Available-for-Sale Available-for-sale Securities [Table Text Block] Available-for-sale fixed maturity securities by contractual maturity date Investments Classified by Contractual Maturity Date [Table Text Block] Continuous Gross Unrealized Loss and OTTI Loss for Fixed Maturity and Equity Securities Available-for-Sale Schedule of Unrealized Loss on Investments [Table Text Block] Disclosure of Mortgage Loans Net of Valuation Allowance Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Components of net unrealized investment gains (losses) included in accumulated other comprehensive income (loss) Unrealized Gain (Loss) on Investments [Table Text Block] Invested Assets on Deposit, Held in Trust and Pledged as Collateral Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] The Components of Net Investment Income Investment Income [Table Text Block] The components of net investment gains (losses) Gain (Loss) on Investments [Table Text Block] Proceeds from sales or disposals of fixed maturity and equity securities and the components of fixed maturity and equity securities net investment gains and losses Proceeds From Sales Or Disposals Of Fixed Maturity And Equity Securities And Components Of Fixed Maturity And Equity Securities Net Investment Gains And Losses [Table Text Block] This table presents the proceeds from sales or disposals of fixed maturity and equity securities and the components of fixed maturity and equity securities net investment gains and losses. Mortgage Loans on Real Estate, Loan Type [Axis] Mortgage Loans on Real Estate, Loan Type [Axis] Mortgage Loans on Real Estate, Loan Type [Domain] Mortgage Loans on Real Estate, Loan Type [Domain] Commercial Commercial Loan [Member] Agricultural Agricultural Portfolio Segment [Member] Portfolio segment of the company's total financing receivables related to agricultural receivables. Disclosure of the mortgage loans portfolio segment by the recorded investment, prior to valuation allowances, by credit quality indicator categories Financing Receivable Credit Quality Indicators [Table Text Block] Variable Interest Entities by Classification of Entity [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Not Primary Beneficiary [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Commercial Loan [Member] Agricultural Portfolio Segment [Member] Financing Receivable, Recorded Investment, Aging [Abstract] Financing Receivable, Recorded Investment, Aging [Abstract] Percentage of Mortgage Loans Classified as Performing Percentage of Mortgage Loans Classified as Performing The percentage of all mortgage loans that are classified as performing. Financing Receivable Number of Contract of Recorded Investment Past Due Financing Receivable Number of Contract of Recorded Investment Past Due Reflects the number of financing receivables of recorded investment that are past due at the balance sheet date. Loans and Leases Receivable, Number of Contract, Nonperforming, Nonaccrual of Interest Loans and Leases Receivable, Number of Contract, Nonperforming, Nonaccrual of Interest Reflects the number of loans deemed to be questionable as to collection on which no interest is continuing to be recognized. Financing Receivable, Modifications, Subsequent Default, Number of Contracts Financing Receivable, Modifications, Subsequent Default, Number of Contracts Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Reconciliation of Revenue from Segments to Consolidated Reconciliation of Revenue from Segments to Consolidated [Table Text Block] Business, Basis of Presentation and Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Offsetting Assets [Table] Offsetting Assets [Line Items] Offsetting Assets [Line Items] Derivative Asset, Fair Value, Gross Asset Excluding Accruals Derivative Asset, Fair Value, Gross Asset Excluding Accruals Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement and accruals. Derivative Liability, Fair Value, Gross Liability Excluding Accruals Derivative Liability, Fair Value, Gross Liability Excluding Accruals Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement and accruals. Amounts offset in the consoilidated balance sheets, Assets Derivative Asset, Not Subject to Master Netting Arrangement Amounts offset in the consoilidated balance sheets, Liabilities Derivative Liability, Not Subject to Master Netting Arrangement Estimated fair value of derivative assets presented in the consolidated balance sheets Derivative Asset, Fair Value, Amount Not Offset Against Collateral Estimated fair value of derivative liabilities presented in the consolidated balance sheets Derivative Liability, Fair Value, Amount Not Offset Against Collateral Gross estimated fair value of derivative assets Derivative Asset, Not Offset, Policy Election Deduction Gross estimated fair value of derivative liabilities Derivative Liability, Not Offset, Policy Election Deduction Cash collateral on derivative liabilities Derivative Liability, Collateral, Right to Reclaim Cash, Offset Securities collateral on derivative assets Derivative Asset, Collateral, Obligation to Return Securities, Offset Amount of obligation to return securities collateral under master netting arrangements offset against derivative assets. Securities collateral on derivative liabilities Derivative Liability, Collateral, Right to Reclaim Securities, Offset Amount of right to receive securities collateral under master netting arrangements offset against derivative liabilities. Net amount of derivative assets after application of master netting agreements and cash collateral Derivative Asset, Fair Value, Amount Offset Against Collateral Net amount of derivative liabilities after application of master netting agreements and cash collateral Derivative Liability, Fair Value, Amount Offset Against Collateral