| **Consolidated Balance Sheets - USD ($) $ in Millions**                                                                                  | Dec. 31, 2021 | Dec. 31, 2020 |
|------------------------------------------------------------------------------------------------------------------------------------------|---------------|---------------|
| **Investments:**                                                                                                                         |          |          |
| Fixed maturity securities at fair value (amortized cost of $39,952 and $38,953, less allowance for credit loss of $18 and $40)           | $ 44,380      | $ 44,631      |
| Equity securities at fair value (cost of $964 and $941)                                                                                  | 1,035         | 992           |
| Limited partnership investments                                                                                                          | 1,859         | 1,619         |
| Other invested assets                                                                                                                    | 91            | 76            |
| Mortgage loans (less allowance for uncollectible receivables of $16 and $26)                                                             | 973           | 1,068         |
| Short term investments                                                                                                                   | 1,990         | 1,907         |
| Total investments                                                                                                                        | 50,328        | 50,293        |
| Cash                                                                                                                                     | 536           | 419           |
| Reinsurance receivables (less allowance for uncollectible receivables of $21 and $21)                                                    | 5,463         | 4,457         |
| Insurance receivables (less allowance for uncollectible receivables of $29 and $33)                                                      | 2,945         | 2,607         |
| Accrued investment income                                                                                                                | 377           | 380           |
| Deferred acquisition costs                                                                                                               | 737           | 708           |
| Deferred income taxes                                                                                                                    | 142           | 66            |
| Property and equipment at cost (less accumulated depreciation of $255 and $231)                                                          | 226           | 252           |
| Goodwill                                                                                                                                 | 148           | 148           |
| Deferred non-insurance warranty acquisition expense                                                                                      | 3,476         | 3,068         |
| Other assets                                                                                                                             | 2,261         | 1,628         |
| Total assets                                                                                                                             | 66,639        | 64,026        |
| **Insurance reserves:**                                                                                                                  |          |          |
| Claim and claim adjustment expenses                                                                                                      | 24,174        | 22,706        |
| Unearned premiums                                                                                                                        | 5,761         | 5,119         |
| Future policy benefits                                                                                                                   | 13,236        | 13,318        |
| Long term debt                                                                                                                           | 2,779         | 2,776         |
| Deferred non-insurance warranty revenue                                                                                                  | 4,503         | 4,023         |
| Other liabilities (includes $56 and $89 due to Loews Corporation)                                                                        | 3,377         | 3,377         |
| Total liabilities                                                                                                                        | 53,830        | 51,319        |
| Commitments and contingencies (Notes B and F)                                                                                            |          |               |
| **Stockholders' Equity**                                                                                                                 |          |          |
| Common stock ($2.50 par value; 500,000,000 shares authorized; 273,040,243 shares issued; 271,363,999 and 271,391,603 shares outstanding) | 683           | 683           |
| Additional paid-in capital                                                                                                               | 2,215         | 2,211         |
| Retained earnings                                                                                                                        | 9,663         | 9,081         |
| Accumulated other comprehensive income                                                                                                   | 320           | 803           |
| Treasury stock (1,676,244 and 1,648,640 shares), at cost                                                                                 | (72)          | (71)          |
| Total stockholders’ equity                                                                                                         | 12,809        | 12,707        |
| Total liabilities and stockholders' equity                                                                                               | $ 66,639      | $ 64,026      |

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Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.
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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.
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Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.
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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.
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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.
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Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.
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Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.
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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.
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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.
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Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading).
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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of deferred policy acquisition cost capitalized on contract remaining in force.
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| - Definition
Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.
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| - Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Sum of the carrying amounts as of the balance sheet date of all investments.
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| - Definition
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.
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| - Definition
The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.
+ References
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| - Definition
Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract.
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| - Definition
Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.
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| - Definition
The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.
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| - Definition
Amount of assets classified as other.
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Amount of investments classified as other.
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Amount of liabilities classified as other.
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| - Definition
Amount of short-term investments classified as other.
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| - Definition
The carrying amount as of the balance sheet date due the entity from (a) agents and insureds, (b) uncollected premiums and (c) others, net of the allowance for doubtful accounts.
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| - Definition
Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
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| - Definition
Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.
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| - Definition
The cumulative amount of the reporting entity's undistributed earnings or deficit.
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| - Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.
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| - References
No definition available.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.
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| - Definition
Carrying amount of premiums written on insurance contracts that have not been earned as of the balance sheet date.
+ References
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