Basis of Presentation and Accounting Policies	6 Months Ended
Jun. 30, 2013
Basis of Presentation and Accounting Policies disclosure
Basis of Presentation and Accounting Policies disclosure [Text Block]	1. BASIS OF PRESENTATION AND ACCOUNTING POLICIES Basis of Presentation The interim consolidated financial statements include the accounts of The Travelers Companies, Inc. (together with its subsidiaries, the Company). These financial statements are prepared in conformity with U.S. generally accepted accounting principles (GAAP) and are unaudited. In the opinion of the Company’s management, all adjustments necessary for a fair presentation have been reflected. Certain financial information that is normally included in annual financial statements prepared in accordance with GAAP, but that is not required for interim reporting purposes, has been omitted. All material intercompany transactions and balances have been eliminated. The accompanying interim consolidated financial statements and related notes should be read in conjunction with the Company’s consolidated financial statements and related notes included in the Company’s 2012 Annual Report on Form 10-K. The preparation of the interim consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the interim consolidated financial statements and the reported amounts of revenues and claims and expenses during the reporting period. Actual results could differ from those estimates. Adoption of Accounting Standards Updates Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income In February 2013, the Financial Accounting Standards Board (FASB) issued updated guidance to improve the reporting of reclassifications out of accumulated other comprehensive income. The guidance requires an entity to present, either on the face of the statement of income or in the notes, separately for each component of comprehensive income, the current period reclassifications out of accumulated other comprehensive income by the respective line items of net income affected by the reclassification. The updated guidance is effective prospectively for reporting periods beginning after December 15, 2012. The Company adopted the updated guidance effective March 31, 2013, and such adoption did not have any effect on the Company’s results of operations, financial position or liquidity. Accounting Standard Not Yet Adopted Parent’s Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity In March 2013, the FASB issued updated guidance to resolve diversity in practice concerning the release of the cumulative foreign currency translation adjustment into net income when a parent sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets within a foreign entity. When a company ceases to have a controlling financial interest in a subsidiary within a foreign entity, the company should recognize any related cumulative translation adjustment into net income only if the sale or transfer results in the complete or substantially complete liquidation of the foreign entity in which the subsidiary had resided. Upon the partial sale of an equity method investment that is a foreign entity, the company should release into earnings a pro rata portion of the cumulative translation adjustment. Upon the partial sale of an equity method investment that is not a foreign entity, the company should release into earnings the cumulative translation adjustment if the partial sale represents a complete or substantially complete liquidation of the foreign entity that holds the equity method investment. The updated guidance is effective for the quarter ending March 31, 2014. Early adoption is permitted. The adoption of this guidance is not expected to have a material effect on the Company’s results of operations, financial position or liquidity. Nature of Operations The Company is organized into three reportable business segments: Business Insurance; Financial, Professional & International Insurance; and Personal Insurance. These segments reflect the manner in which the Company’s businesses are currently managed and represent an aggregation of products and services based on type of customer, how the business is marketed and the manner in which risks are underwritten. The specific business segments are as follows: Business Insurance The Business Insurance segment offers a broad array of property and casualty insurance and insurance-related services to its clients primarily in the United States. Business Insurance is organized into the following six groups, which collectively comprise Business Insurance Core operations: Select Accounts; Commercial Accounts; National Accounts; Industry-Focused Underwriting; Target Risk Underwriting; and Specialized Distribution. Business Insurance also includes the Special Liability Group (which manages the Company’s asbestos and environmental liabilities) and the assumed reinsurance and certain other runoff operations, which collectively are referred to as Business Insurance Other. Financial, Professional & International Insurance The Financial, Professional & International Insurance segment includes surety and financial liability coverages, which primarily use credit-based underwriting processes, as well as property and casualty products that are primarily marketed on a domestic basis in the United Kingdom, Canada and the Republic of Ireland, and on an international basis through Lloyd’s. The segment includes Bond & Financial Products as well as International. In addition, the Company owns 49.5% of the common stock of J. Malucelli Participações em Seguros e Resseguros S.A. (JMalucelli), its joint venture in Brazil. JMalucelli is currently the market leader in surety in Brazil based on market share, and commenced writing other property and casualty insurance business in 2012. The Company’s investment in JMalucelli is accounted for using the equity method and is included in “other investments” on the consolidated balance sheet. On June 10, 2013, the Company entered into a definitive agreement to acquire all of the issued and outstanding shares of The Dominion of Canada General Insurance Company (The Dominion) from E-L Financial Corporation Limited (E-L Financial) for an aggregate cash purchase price of C$1.125 billion (approximately US$1.1 billion), subject to adjustment to reflect changes in shareholder’s equity prior to the closing, including a downward adjustment to reflect an anticipated pre-closing dividend. The transaction is expected to close in the fourth quarter of 2013, subject to regulatory approvals and other customary closing conditions. The Dominion primarily markets personal lines and small commercial insurance business in Canada. Personal Insurance The Personal Insurance segment writes a broad range of property and casualty insurance covering individuals’ personal risks. The primary products of automobile and homeowners insurance are complemented by a broad suite of related coverages.

1. BASIS OF PRESENTATION AND ACCOUNTING POLICIES

Basis of Presentation

The interim consolidated financial statements include the accounts of The Travelers Companies, Inc. (together with its subsidiaries, the Company). These financial statements are prepared in conformity with U.S. generally accepted accounting principles (GAAP) and are unaudited. In the opinion of the Company’s management, all adjustments necessary for a fair presentation have been reflected. Certain financial information that is normally included in annual financial statements prepared in accordance with GAAP, but that is not required for interim reporting purposes, has been omitted. All material intercompany transactions and balances have been eliminated. The accompanying interim consolidated financial statements and related notes should be read in conjunction with the Company’s consolidated financial statements and related notes included in the Company’s 2012 Annual Report on Form 10-K.

The preparation of the interim consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the interim consolidated financial statements and the reported amounts of revenues and claims and expenses during the reporting period. Actual results could differ from those estimates.

Adoption of Accounting Standards Updates

Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income

In February 2013, the Financial Accounting Standards Board (FASB) issued updated guidance to improve the reporting of reclassifications out of accumulated other comprehensive income. The guidance requires an entity to present, either on the face of the statement of income or in the notes, separately for each component of comprehensive income, the current period reclassifications out of accumulated other comprehensive income by the respective line items of net income affected by the reclassification.

The updated guidance is effective prospectively for reporting periods beginning after December 15, 2012. The Company adopted the updated guidance effective March 31, 2013, and such adoption did not have any effect on the Company’s results of operations, financial position or liquidity.

Accounting Standard Not Yet Adopted

Parent’s Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity

In March 2013, the FASB issued updated guidance to resolve diversity in practice concerning the release of the cumulative foreign currency translation adjustment into net income when a parent sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets within a foreign entity. When a company ceases to have a controlling financial interest in a subsidiary within a foreign entity, the company should recognize any related cumulative translation adjustment into net income only if the sale or transfer results in the complete or substantially complete liquidation of the foreign entity in which the subsidiary had resided. Upon the partial sale of an equity method investment that is a foreign entity, the company should release into earnings a pro rata portion of the cumulative translation adjustment. Upon the partial sale of an equity method investment that is not a foreign entity, the company should release into earnings the cumulative translation adjustment if the partial sale represents a complete or substantially complete liquidation of the foreign entity that holds the equity method investment. The updated guidance is effective for the quarter ending March 31, 2014. Early adoption is permitted. The adoption of this guidance is not expected to have a material effect on the Company’s results of operations, financial position or liquidity.

Nature of Operations

The Company is organized into three reportable business segments: Business Insurance; Financial, Professional & International Insurance; and Personal Insurance. These segments reflect the manner in which the Company’s businesses are currently managed and represent an aggregation of products and services based on type of customer, how the business is marketed and the manner in which risks are underwritten. The specific business segments are as follows:

Business Insurance

The Business Insurance segment offers a broad array of property and casualty insurance and insurance-related services to its clients primarily in the United States. Business Insurance is organized into the following six groups, which collectively comprise Business Insurance Core operations: Select Accounts; Commercial Accounts; National Accounts; Industry-Focused Underwriting; Target Risk Underwriting; and Specialized Distribution.

Business Insurance also includes the Special Liability Group (which manages the Company’s asbestos and environmental liabilities) and the assumed reinsurance and certain other runoff operations, which collectively are referred to as Business Insurance Other.

Financial, Professional & International Insurance

The Financial, Professional & International Insurance segment includes surety and financial liability coverages, which primarily use credit-based underwriting processes, as well as property and casualty products that are primarily marketed on a domestic basis in the United Kingdom, Canada and the Republic of Ireland, and on an international basis through Lloyd’s. The segment includes Bond & Financial Products as well as International. In addition, the Company owns 49.5% of the common stock of J. Malucelli Participações em Seguros e Resseguros S.A. (JMalucelli), its joint venture in Brazil. JMalucelli is currently the market leader in surety in Brazil based on market share, and commenced writing other property and casualty insurance business in 2012. The Company’s investment in JMalucelli is accounted for using the equity method and is included in “other investments” on the consolidated balance sheet.

On June 10, 2013, the Company entered into a definitive agreement to acquire all of the issued and outstanding shares of The Dominion of Canada General Insurance Company (The Dominion) from E-L Financial Corporation Limited (E-L Financial) for an aggregate cash purchase price of C$1.125 billion (approximately US$1.1 billion), subject to adjustment to reflect changes in shareholder’s equity prior to the closing, including a downward adjustment to reflect an anticipated pre-closing dividend. The transaction is expected to close in the fourth quarter of 2013, subject to regulatory approvals and other customary closing conditions. The Dominion primarily markets personal lines and small commercial insurance business in Canada.

Personal Insurance

The Personal Insurance segment writes a broad range of property and casualty insurance covering individuals’ personal risks. The primary products of automobile and homeowners insurance are complemented by a broad suite of related coverages.