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Cover
Document And Entity Information
Financial Statements
Consolidated Balance Sheets
Consolidated Balance Sheets (Parenthetical)
Consolidated Statements Of Income
Consolidated Statements Of Comprehensive Income
Consolidated Statements Of Equity
Consolidated Statements Of Cash Flows
Notes to Financial Statements
Summary Of Significant Accounting Policies
Acquisition/Divestitures
Investments
Fair Value
Derivative Financial Instruments
Receivables
Property, Plant and Equipment
Claim And Claim Adjustment Expense Reserves
Leases
Income Taxes
Debt
Shareholders' Equity
Statutory Accounting Practices
Supplemental Natural Gas And Oil Information
Benefit Plans
Reinsurance
Quarterly Financial Data
Legal Proceedings
Commitments And Contingencies
Business Segments
Consolidating Financial Information
SCHEDULE I: Condensed Financial Information of Registrant
SCHEDULE II: Valuation And Qualifying Accounts
SCHEDULE V: Supplemental Information Concerning Property And Casualty Insurance Operations
Accounting Policies
Summary Of Significant Accounting Policies (Policy)
Notes Tables
Summary Of Significant Accounting Policies (Tables)
Investments (Tables)
Fair Value (Tables)
Derivative Financial Instruments (Tables)
Receivables (Tables)
Property, Plant and Equipment (Tables)
Claim And Claim Adjustment Expense Reserves (Tables)
Leases (Tables)
Income Taxes (Tables)
Debt (Tables)
Shareholders' Equity (Tables)
Statutory Accounting Practices (Tables)
Supplemental Natural Gas And Oil Information (Tables)
Benefit Plans (Tables)
Reinsurance (Tables)
Quarterly Financial Data (Tables)
Business Segments (Tables)
Consolidating Financial Information (Tables)
Notes Details
Summary Of Significant Accounting Policies (Narrative) (Details)
Summary Of Significant Accounting Policies (Schedule Of Life Settlement Contracts, Fair Value Method) (Details)
Summary Of Significant Accounting Policies (Principal Service Lives) (Details)
Acquisition/Divestitures (Narrative) (Details)
Investments (Narrative) (Details)
Investments (Schedule Of Net Investment Income) (Details)
Investments (Components Of Other-Than-Temporary Impairment ("OTTI") Losses Recognized In Earnings By Asset Type) (Details)
Investments (Amortized Cost And Fair Values Of Securities) (Details)
Investments (Securities Available-For-Sale In A Gross Unrealized Loss Position) (Details)
Investments (Schedule Of Activity In Other Than Temporary Credit Losses) (Details)
Investments (Corporate And Other Taxable Bonds In A Gross Unrealized Loss Position By Ratings Distribution) (Details)
Investments (Asset-Backed Securities In A Gross Unrealized Loss Position By Ratings Distribution) (Details)
Investments (Contractual Maturity) (Details)
Fair Value (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details)
Fair Value (Assets And Liabilities Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs) (Details)
Fair Value (Carrying Amount And Estimated Fair Value Of Financial Instrument Assets And Liabilities Which Are Not Measured At Fair Value) (Details)
Derivative Financial Instruments (Narrative) (Details)
Derivative Financial Instruments (Summary Of Aggregate Contractual Or Notional Amounts And Gross Estimated Fair Values Related To Derivative Financial Instruments) (Details)
Derivative Financial Instruments (Schedule Of Gains And Losses Of Derivative Financial Instruments Without Hedge Designation) (Details)
Derivative Financial Instruments (Net Derivative Gains (Losses) Included In OCI And The Amount Reclassified Into Earnings) (Details)
Receivables (Details)
Property, Plant And Equipment (Narrative) (Details)
Property, Plant and Equipment (Property, Plant And Equipment) (Details)
Property, Plant And Equipment (DD&A Expense And Capital Expenditures) (Details)
Property, Plant and Equipment (Costs Not Being Amortized) (Details)
Claim And Claim Adjustment Expense Reserves (Narrative) (Details)
Claim And Claim Adjustment Expense Reserves (Reconciliation Of Claim And Claim Adjustment Expense Reserves) (Details)
Claim And Claim Adjustment Expense Reserves (Changes In Provisions For Insured Events Of Prior Years) (Details)
Claim And Claim Adjustment Expense Reserves (Summary Of Gross And Net Carried Reserves) (Details)
Claim And Claim Adjustment Expense Reserves (Impact Of The Loss Portfolio Transfer On The Consolidated Statement Of Income) (Details)
Claim And Claim Adjustment Expense Reserves (Net Prior Year Development) (Details)
Claim And Claim Adjustment Expense Reserves (Net Prior Year Claim And Allocated Claim Adjustment For CNA Specialty Segment) (Details)
Claim And Claim Adjustment Expense Reserves (Net Prior Year Claim And Allocated Claim Adjustment For CNA Commercial Segment) (Details)
Leases (Narrative) (Details)
Leases (Future Minimum Lease Payments To Be Made Under Non-Cancelable Operating Leases Along With Lease And Sublease Minimum Receipts To Be Received On Owned And Leased Properties) (Details)
Income Taxes (Narrative) (Details)
Income Taxes (Current And Deferred Components Of Income Tax Expense (Benefit), Excluding Taxes On Discontinued Operations) (Details)
Income Taxes (Components Of U.S. And Foreign Income And A Reconciliation Between The Federal Income Tax Expense At Statutory Rates and The Actual Income Tax Expense) (Details)
Income Taxes (Reconciliation Of The Beginning And Ending Amount Of Unrecognized Tax Benefits) (Details)
Income Taxes (Summary Of Deferred Tax Assets And Liabilities) (Details)
Income Taxes (Deferred Tax Assets And Liabilities Recognized In The Consolidated Balance Sheets) (Details)
Debt (Narrative) (Details)
Debt (Schedule Of Long-Term Debt Instruments) (Details)
Debt (Schedule Of Debt By Subsidiary) (Details)
Shareholders' Equity (Narrative) (Details)
Shareholders' Equity (Components Of Accumulated Other Comprehensive Income (Loss)) (Details)
Statutory Accounting Practices (Narrative) (Details)
Statutory Accounting Practices (Combined Statutory Capital And Surplus And Net Income (Loss) (Details)
Supplemental Natural Gas And Oil Information (Estimated Net Quantities Of Proved Natural Gas And Oil Reserves) (Details)
Supplemental Natural Gas And Oil Information (Aggregate Amounts Of Costs Capitalized For Natural Gas And Oil Producing Activities) (Details)
Supplemental Natural Gas And Oil Information (Costs Incurred In Natural Gas And Oil Producing Activities) (Details)
Supplemental Natural Gas And Oil Information (Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Natural Gas And Oil Reserve Quantities) (Details)
Supplemental Natural Gas And Oil Information (Changes Between The Total Standardized Measure Of Discounted Future Net Cash Flows) (Details)
Benefit Plans (Narrative) (Details)
Benefit Plans (Weighted-Average Assumptions Used To Determine Benefit Obligations) (Details)
Benefit Plans (Weighted-Average Assumptions Used To Determine Net Periodic Benefit Cost) (Details)
Benefit Plans (Assumed Health Care Cost Trend Rates) (Details)
Benefit Plans (Components Of Net Periodic Benefit Cost) (Details)
Benefit Plans (Reconciliation Of Benefit Obligation) (Details)
Benefit Plans (Estimated Amounts To Be Recognized From Accumulated Other Comprehensive Income Into Net Periodic Benefit Cost) (Details)
Benefit Plans (Estimated Future Minimum Benefit Payments) (Details)
Benefit Plans (Pension Plan Assets Measured At Fair Value On A Recurring Basis) (Details)
Benefit Plans (Pension Plan Assets Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs (Level 3)) (Details)
Benefit Plans (Other Postretirement Benefit Plan Assets Measured At Fair Value On A Recurring Basis) (Details)
Benefit Plans (Other Postretirement Benefit Plan Assets Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs (Level 3)) (Details)
Benefit Plans (Summary Of Stock Option And SAR Transactions) (Details)
Benefit Plans (Summary Of Stock Option And SAR's Outstanding By Exercise Price Range) (Details)
Benefit Plans (Fair Value Of Granted Options And SARs) (Details)
Reinsurance (Narrative) (Details)
Reinsurance (Summary Of Amounts Receivable From Reinsurers) (Details)
Reinsurance (Summary Of The Effects Of Reinsurance On Earned Premiums) (Details)
Reinsurance (Summary Of The Impact On Life In Force) (Details)
Quarterly Financial Data (Details)
Commitments And Contingencies (Details)
Business Segments (Details)
Consolidating Financial Information (Consolidating Balance Sheet Information) (Details)
Consolidating Financial Information (Consolidating Statement Of Income Information) (Details)
SCHEDULE I: Condensed Financial Information Of Registrant (Parent Company Only, Balance Sheets) (Details)
SCHEDULE I: Condensed Financial Information Of Registrant (Parent Company Only, Statements Of Income) (Details)
SCHEDULE I: Condensed Financial Information Of Registrant (Parent Company Only, Statements Of Cash Flows) (Details)
SCHEDULE II: Valuation And Qualifying Accounts (Schedule Of Valuation And Qualifying Accounts) (Details)
SCHEDULE V: Supplemental Information Concerning Property And Casualty Insurance Operations (Details)
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