Reporting Concepts 4165bfd9bd8f4585fa6fb37991a58fa53a0f2678

Label/Name
AM Best, A Rating [Member]
AM Best, C++ Rating [Member]
AM Best, A++ Rating [Member]
AM Best, A- Rating [Member]
AM Best, D Rating [Member]
AM Best, C Rating [Member]
AM Best, B Rating [Member]
AM Best, S Rating [Member]
AM Best, C- Rating [Member]
AM Best, A+ Rating [Member]
AM Best, B+ Rating [Member]
AM Best, C+ Rating [Member]
AM Best, B++ Rating [Member]
AM Best, F Rating [Member]
AM Best, B- Rating [Member]
AM Best, E Rating [Member]
Arithmetic Average [Member]
A-330 [Member]
A-320-Neo [Member]
A-320 [Member]
A-312 [Member]
A-300 [Member]
Asia Pacific [Member]
Asia [Member]
Americas [Member]
Africa [Member]
A-330-200 [Member]
A-320-200 [Member]
Apartment Building [Member]
Additional Information Necessary to Prevent Disclosure of Discounts Future Net Cash Flows from Being Misleading
Affiliated Entity [Member]
Aircraft [Domain]
Aircraft Type [Axis]
Broker-Dealer, Excess Net Capital, Alternative Standard
Broker-Dealer, Minimum Net Capital Required, Alternative Standard [Abstract]
Broker-Dealer, Excess Net Capital, Alternative Standard [Abstract]
Broker-Dealer, Minimum Net Capital Required, Alternative Standard
Oil and Gas, Average Sale Price and Production Cost Per Unit [Table]
Oil and Gas, Average Sale Price
B-737-900 [Member]
B-737-820 [Member]
B-717 [Member]
B-717-200 [Member]
B-777 [Member]
B-777-300 [Member]
B-777-223 [Member]
B-767 [Member]
B-767-323 [Member]
B-767-300 [Member]
B-767-200 [Member]
B-757 [Member]
B-757-223 [Member]
B-737-Max [Member]
B-737 [Member]
B-777-200 [Member]
B-757-200 [Member]
B-737-800 [Member]
B-737-700 [Member]
Broker-Dealer, Bank Loan, Short-term
Board of Directors Chairman [Member]
Brokers and Dealers [Abstract]
CRJ-700 [Member]
CRJ [Member]
CRJ-200 [Member]
CRJ-900 [Member]
Central America [Member]
Counterparty Name [Axis]
Controller [Member]
Broker-Dealer, Minimum Net Capital Required, Broker-Dealer Subsidiary, Alternative Standard
Chief Operating Officer [Member]
Chief Financial Officer [Member]
Chief Executive Officer [Member]
Common Domain Members [Abstract]
Common [Table]
Broker-Dealer, Net Capital Requirement, Alternative Standard [Abstract]
Broker-Dealer, Net Capital Requirement, SEC Regulation [Table Text Block]
Condensed Financial Statements [Text Block]
Condensed Income Statements, Captions [Line Items]
Condensed Cash Flow Statements, Captions [Line Items]
Condensed Income Statement [Table]
Condensed Balance Sheet Statement [Table]
Condensed Financial Statements, Captions [Line Items]
Condensed Cash Flow Statement [Table]
Condensed Statement of Income Captions [Line Items]
Condensed Financial Information Disclosure [Abstract]
Condensed Statement of Comprehensive Income [Table]
Condensed Statement of Comprehensive Income [Table Text Block]
Condensed Balance Sheet Statements, Captions [Line Items]
Oil and Gas, Average Production Cost Per Unit
Consolidated Entity Excluding Variable Interest Entities (VIE) [Member]
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Consolidated Property and Casualty Insurance Entity [Member]
Oil and Gas, Average Sale Price and Production Cost Per Unit [Line Items]
Consolidated Entities [Domain]
Consolidated Entities [Axis]
Consolidation, Eliminations [Member]
Consolidation Items [Axis]
Consolidation Items [Domain]
Contractual Obligation, Fiscal Year Maturity [Table Text Block]
Credit Rating, Standard & Poor's [Axis]
Credit Rating, Moody's [Axis]
Credit Rating, AM Best [Domain]
Credit Rating, Fitch [Axis]
Credit Rating, AM Best [Axis]
Crude Oil and Natural Gas Liquids (NGL) [Member]
Crude Oil [Member]
Cumulative Effect, Period of Adoption [Domain]
Cumulative Effect, Period of Adoption [Axis]
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Currency [Axis]
Decrease Due to Sales of Minerals in Place
Description of Guarantees Given by Registrant
Description of Mandatory Dividend or Redemption Provisions of Redeemable Stock of Registrant
Description of Material Contingencies of Registrant
Futures Commission Merchant, Net Capital Requirement, Description
Description of Significant Provisions of Long-term Obligations of Registrant
Oil and Gas, Development Well Drilled [Line Items]
Oil and Gas, Development Well Drilled, Net Nonproductive, Number
Oil and Gas, Development Well Drilled, Net Productive, Number
Oil and Gas, Development Well Drilled [Table]
Director [Member]
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Net Cash Flows [Abstract]
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items]
Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Abstract]
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Table]
Broker-Dealer, Draft Payable
EMB-120 [Member]
EMB-135 [Member]
EMB [Member]
EMB-145 [Member]
Europe [Member]
Extractive Industries [Abstract]
External Credit Rating, Standard & Poor's [Domain]
External Credit Rating, Moody's [Domain]
External Credit Rating, Fitch [Domain]
Energy [Axis]
Energy [Domain]
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Equity Investment in Property and Casualty Insurance Investee [Member]
Investment, Name [Domain]
Broker-Dealer, Excess Net Capital, 1500 Percent, Aggregate Indebtedness Standard [Abstract]
Broker-Dealer, Excess Net Capital, 1500 Percent, Aggregate Indebtedness Standard
Executive Officer [Member]
Executive Vice President [Member]
Oil and Gas, Exploratory Well Drilled [Table]
Oil and Gas, Exploratory Well Drilled, Net Nonproductive, Number
Oil and Gas, Exploratory Well Drilled, Net Productive, Number
Oil and Gas, Exploratory Well Drilled [Line Items]
Extensions, Discoveries, Additions and Improved Recovery, Less Related Costs
Fitch, A+ Rating [Member]
Fitch, AAA Rating [Member]
Fitch, A Rating [Member]
Fitch, AA- Rating [Member]
Fitch, CCC Rating [Member]
Fitch, CC Rating [Member]
Fitch, BB Rating [Member]
Fitch, BBB- Rating [Member]
Fitch, C Rating [Member]
Fitch, BB+ Rating [Member]
Fitch, CCC- Rating [Member]
Fitch, BB- Rating [Member]
Fitch, BBB Rating [Member]
Fitch, AA+ Rating [Member]
Fitch, BBB+ Rating [Member]
Fitch, B- Rating [Member]
Fitch, AA Rating [Member]
Fitch, B+ Rating [Member]
Fitch, CCC+ Rating [Member]
Fitch, A- Rating [Member]
Fitch, B Rating [Member]
Fitch, D Rating [Member]
Federal Home Loan Bank of Indianapolis [Member]
Federal Home Loan Bank of San Francisco [Member]
Federal Home Loan Bank of Cincinnati [Member]
Federal Home Loan Bank of Des Moines [Member]
Federal Home Loan Bank of Dallas [Member]
Federal Home Loan Bank of Boston [Member]
Federal Home Loan Bank of Pittsburgh [Member]
Federal Home Loan Bank of Atlanta [Member]
Federal Home Loan Bank of Chicago [Member]
Federal Home Loan Bank of Topeka [Member]
Federal Home Loan Bank of Seattle [Member]
Federal Home Loan Bank of New York [Member]
Federal Home Loan Bank Branch [Axis]
Federal Home Loan Bank Branch [Domain]
Fuel [Member]
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Net Cash Flows
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Ten Percent Annual Discount for Estimated Timing of Cash Flows
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Income Tax Expense
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Development Costs
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Production Costs
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Cash Inflows
Geography Eliminations [Member]
Oil and Gas, Acreage [Line Items]
Oil and Gas, Undeveloped Acreage, Net
Oil and Gas, Developed Acreage, Gross
Oil and Gas, Acreage [Table]
Oil and Gas, Undeveloped Acreage, Gross
Oil and Gas, Developed Acreage, Net
Guarantor Subsidiaries [Member]
Heating Oil [Member]
Hotel [Member]
Changes in Estimated Future Development Costs
Changes in Future Income Tax Expense Estimates on Future Cash Flows Related to Proved Oil and Gas Reserves
Increase (Decrease) in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Roll Forward]
Proved Developed and Undeveloped Reserves [Roll Forward]
Increase Due to Purchases of Minerals in Place
Industrial Property [Member]
Items Included in Consolidated Statement of Financial Condition [Abstract]
Latin America [Member]
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Ceded
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Percentage Assumed to Net
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Net [Abstract]
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Assumed
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Gross
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Net
Litigation Case [Axis]
Litigation Case [Domain]
Long-term Supply Agreements with Governments or Authorities [Abstract]
Median [Member]
Multifamily [Member]
Moody's, Aaa Rating [Member]
Moody's, Aa1 Rating [Member]
Moody's, A3 Rating [Member]
Moody's, B2 Rating [Member]
Moody's, A2 Rating [Member]
Moody's, C Rating [Member]
Moody's, Caa3 Rating [Member]
Moody's, Caa1 Rating [Member]
Moody's, Baa2 Rating [Member]
Moody's, Caa2 Rating [Member]
Moody's, B3 Rating [Member]
Moody's, Baa1 Rating [Member]
Moody's, Ca Rating [Member]
Moody's, Aa3 Rating [Member]
Moody's, Ba2 Rating [Member]
Moody's, Ba1 Rating [Member]
Moody's, B1 Rating [Member]
Moody's, Aa2 Rating [Member]
Moody's, Baa3 Rating [Member]
Moody's, Ba3 Rating [Member]
Moody's, A1 Rating [Member]
Customer [Axis]
Management [Member]
Maximum [Member]
Broker-Dealer, Minimum Net Capital Required, Parent, Aggregate Indebtedness Standard
Oil and Gas, Undeveloped Acreage, Minimum Remaining Term
Futures Commission Merchant, Minimum Financial Requirement [Table Text Block]
Minimum [Member]
Broker-Dealer, Minimum Net Capital Required, Broker-Dealer Subsidiary, Aggregate Indebtedness Standard
Broker-Dealer, Minimum Net Capital Required, Aggregate Indebtedness Standard [Abstract]
Broker-Dealer, Minimum Net Capital Required, Aggregate Indebtedness Standard
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Periodic Payment Terms, Balloon Payment to be Received
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Original Loan Amount [Domain]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate Schedule [Table]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Delinquent Principal or Interest, Acquired from Affiliates
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Prior Lien, Amount
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Text Block]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Collections of Principal
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Face Amount of Mortgages
Real Estate [Domain]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Abstract]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Final Maturity Date
Real Estate, Type of Property [Axis]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Original Amount [Axis]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Federal Income Tax Basis
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category [Axis]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Interest Rate
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Category [Domain]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Type [Domain]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Other Disclosure [Abstract]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Loan Type [Axis]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans between $500,000 and $749,999 [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Principal Amount of Delinquent Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Write-down or Reserve by Loan [Axis]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Number of Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Write-down or Reserve, Basis
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Periodic Payment Terms, Varying Amount, Description
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Periodic Payment Terms, Description
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Renewed and Extended, Description
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Reserve, Description
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans between $250,000 and $499,999 [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Write-down or Reserve [Line Items]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans between $750,000 and $999,999 [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Transactions with Affiliates, Description
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Periodic Payment Terms, Level Payment, Description
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Write-down or Reserve [Table]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Write-down or Reserve, Loan [Domain]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans over $1,000,000 [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans under $250,000 [Member]
North America [Member]
Customer [Domain]
Natural Gas Liquids [Member]
Natural Gas and Natural Gas Liquids [Member]
Natural Gas [Member]
Broker-Dealer, Net Capital, Excess of Five Percent of Debit Items, Alternative Standard
Futures Commission Merchant, Commodity Exchange Act, Adjusted Net Capital
Futures Commission Merchant, Commodity Exchange Act, Excess Net Capital [Abstract]
Broker-Dealer, Net Capital
Net Increase (Decrease) in Sales and Transfer Prices and Production Costs
Futures Commission Merchant, Commodity Exchange Act, Excess Net Capital
Non-Guarantor Subsidiaries [Member]
Ownership [Domain]
Ownership [Axis]
Office Building [Member]
Officer [Member]
Oil and Gas, Delivery Commitment [Table]
Oil and Gas, Delivery Commitment [Line Items]
Oil and Gas, Average Sale Price and Production Cost [Table Text Block]
Oil and Gas, Delivery Commitment [Table Text Block]
Oil and Gas, Delivery Commitment, Supply Dedicated or Contracted
Oil and Gas, Delivery Commitment, Quantity Committed
Oil [Member]
Oil and Gas, Present Activity [Table]
Oil and Gas, Present Activity [Line Items]
Oil and Gas Quantities Received under Long-term Supply Agreements with Governments or Authorities
Oil and Gas, Delivery Commitment, Quantity to be Received
Other Property [Member]
Other Nonrenewable Natural Resources [Member]
Product and Service [Domain]
Parent Company [Member]
Partnership Interest [Member]
Broker-Dealer, Payable to Other Broker-Dealer and Clearing Organization
Broker-Dealer, Payable to Customer
President [Member]
Previously Estimated Development Costs Incurred
Principal Sources of Change in Standardized Measure of Discounted Future Net Cash Flow Relating to Proved Oil and Gas Reserves [Abstract]
Pro Forma [Member]
Product and Service [Axis]
Oil and Gas, Production Reserve, Energy
Oil, Productive Well, Number of Wells with Multiple Completions, Net
Oil, Productive Well, Number of Wells, Net
Gas, Productive Well, Number of Wells, Gross
Productive Wells [Line Items]
Oil, Productive Well, Number of Wells, Gross
Gas, Productive Well, Number of Wells, Net
Oil and Gas, Productive Well [Table]
Oil, Productive Well, Number of Wells with Multiple Completions, Gross
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Affiliation with Registrant [Domain]
Proved Reserve Quantity, Location in Home Country [true false]
Proved Oil and Gas Reserve Quantities Applicable to Long-term Supply Agreements with Governments or Authorities
Proved Developed and Undeveloped Reserves, Net, Period Increase (Decrease)
Proved Developed and Undeveloped Reserves, Production
Proved Developed and Undeveloped Reserve, Extension and Discovery (Energy)
Proved Developed and Undeveloped Reserves, Extensions, Discoveries, and Additions
Proved Developed and Undeveloped Reserves, Purchases of Minerals in Place
Proved Developed and Undeveloped Reserve, Revision of Previous Estimate (Energy)
Proved Developed and Undeveloped Reserve, Purchase of Mineral in Place (Energy)
Proved Developed and Undeveloped Reserve, Production (Energy)
Proved Developed and Undeveloped Reserve, Improved Recovery (Energy)
Proved Undeveloped Reserve (Volume)
Proved Developed and Undeveloped Reserves, Sales of Minerals in Place
Proved Developed and Undeveloped Reserves, Sale of Mineral in Place (Energy)
Proved Developed and Undeveloped Reserve (Energy) [Roll Forward]
Proved Developed and Undeveloped Reserves, Net
Proved Developed and Undeveloped Reserves, Revisions of Previous Estimates
Proved Developed and Undeveloped Oil and Gas Reserve Quantities [Table]
Proved Developed Reserves (Energy)
Proved Developed and Undeveloped Reserve, Net (Energy)
Proved Undeveloped Reserves (Energy)
Proved Developed Reserves (Volume)
Proved Developed and Undeveloped Reserve, Net (Energy), Period Increase (Decrease)
Proved Developed and Undeveloped Reserves, Improved Recovery
Revision of Prior Period, Reclassification, Adjustment [Member]
Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Revision of Prior Period, Error Correction, Adjustment [Member]
Revision of Prior Period, Change in Accounting Principle, Adjustment [Member]
Reportable Legal Entities [Member]
Reportable Geographical Components [Member]
Statistical Measurement [Axis]
Statistical Measurement [Domain]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Text Block]
Name of Property [Domain]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Date Acquired
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, and Accumulated Depreciation, Other Disclosure [Abstract]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Date of Construction
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, by Property [Table]
Name of Property [Axis]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Amount of Encumbrances
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Federal Income Tax Basis
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Write-down or Reserve, Basis
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Write-down or Reserve [Table]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Noncash Transaction, Description
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Write-down or Reserve [Line Items]
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table]
Counterparty Name [Domain]
Futures Commission Merchant, Commodity Exchange Act, Required Net Capital
Reserve Quantity Attributable to Consolidated Subsidiary, Noncontrolling Interest, Volume
Reserve Quantity Attributable to Consolidated Subsidiary, Noncontrolling Interest [true false]
Petroleum Reserves [Axis]
Reserve Quantities [Line Items]
Reserves, Share of Equity Method Investee's Net Proved Oil and Gas Reserves
Revision of Prior Period, Adjustment [Member]
Revision of Prior Period [Domain]
Revision of Prior Period [Axis]
Retail Site [Member]
Revisions of Previous Quantity Estimates
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Number of Units
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Transaction with Affiliate, Description
SEC Schedule, 12-29, Investment in Mortgage Loans on Real Estate, Location of Property [Extensible List]
South America [Member]
Sales and Transfers of Oil and Gas Produced, Net of Production Costs
Previously Reported [Member]
Scenario [Domain]
Forecast [Member]
Condensed Cash Flow Statement [Table Text Block]
Condensed Financial Statements [Table Text Block]
Condensed Income Statement [Table Text Block]
Schedule of Changes in Standardized Measure of Discounted Future Net Cash Flows [Table Text Block]
Condensed Balance Sheet [Table Text Block]
Condensed Financial Statements [Table]
Oil and Gas, Development Well Drilled [Table Text Block]
Investment, Name [Axis]
Oil and Gas, Exploratory Well Drilled [Table Text Block]
Oil and Gas, Acreage [Table Text Block]
Oil and Gas, Present Activity [Table Text Block]
Oil and Gas, Productive Well [Table Text Block]
Schedule of Proved Developed and Undeveloped Oil and Gas Reserve Quantities [Table Text Block]
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Text Block]
Geographical [Domain]
Significant Economic Interest in Standardized Measure of Discounted Future Net Cash Flows Attributable to Consolidated Subsidiary(ies) with Significant Noncontrolling Interests
Significant Changes in Reserves
Single Family [Member]
Standard & Poor's, A Rating [Member]
Standard & Poor's, AAA Rating [Member]
Standard & Poor's, BBB- Rating [Member]
Standard & Poor's, BBB Rating [Member]
Standard & Poor's, BB Rating [Member]
Standard & Poor's, BB- Rating [Member]
Standard & Poor's, CCC Rating [Member]
Standard & Poor's, B Rating [Member]
Standard & Poor's, AA+ Rating [Member]
Standard & Poor's, A+ Rating [Member]
Standard & Poor's, B- Rating [Member]
Standard & Poor's, BBB+ Rating [Member]
Standard & Poor's, B+ Rating [Member]
Standard & Poor's, CCC- Rating [Member]
Standard & Poor's, A- Rating [Member]
Standard & Poor's, CC Rating [Member]
Standard & Poor's, BB+ Rating [Member]
Standard & Poor's, AA- Rating [Member]
Standard & Poor's, D Rating [Member]
Standard & Poor's, CCC+ Rating [Member]
Standard & Poor's, C Rating [Member]
Standard & Poor's, AA Rating [Member]
Standardized Measure of Discounted Future Net Cash Flow Relating to Proved Oil and Gas Reserves, Accretion of Discount
Standardized Measure of Discounted Future Net Cash Flow of Proved Oil and Gas Reserves, Period Increase (Decrease)
Standardized Measure of Discounted Future Net Cash Flow of Proved Oil and Gas Reserves, Other
Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves
Standardized Measure of Discounted Future Cash Flows Relating to Proved Reserves Disclosure [Table Text Block]
Geographical [Axis]
Scenario [Axis]
Subsidiaries [Member]
Subsidiary Issuer [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Text Block]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Difference in Amounts, Explanation
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Table]
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Abstract]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Line Items]
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Affiliation with Registrant [Axis]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Text Block]
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Table]
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Disclosure [Text Block]
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Table]
Synthetic Oil [Member]
Synthetic Gas [Member]
Title of Individual [Axis]
Title of Individual [Domain]
Broker-Dealer, Minimum Net Capital Required, Parent, Alternative Standard
Type of Reserve [Domain]
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Unconsolidated Property and Casualty Insurance Entity [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
Vice President [Member]
Warehouse [Member]
Weighted Average [Member]
Oil and Gas, Present Activity, Well Temporarily Suspended
Oil and Gas, Present Activity, Well in Process of Drilling