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Summary of Significant Accounting Policies | 3 Months Ended
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Mar. 31, 2013
Disclosure Text Block [Abstract] |
Basis of Presentation | 1. Basis of Presentation The Company American Express Company (the Company) is a global service s company that provides customers with access to products, insights and experiences that enrich lives and build business success. The Company's principal products and services are charge and credit payment card products and travel-related services offered to consumers and businesses around the worl d. The Company also focuse s on generating alternative sources of revenue on a global basis in areas such as online and mobile payments and fee-based services. The Company's various products and services are sold globally to diverse customer groups, including consumers, small businesses, mid-sized companies and large corporations. These products and services are sold through various channels, including direct mail, online applications, targeted direct and third-party sales forces and direct response advertising. The accompanying Consolidated Financial Statements should be read in conjunction with the financial statements incorporated by reference in the Company's Annual Report on Form 10-K for the year ended December 31, 2012 (the 2012 Form 10-K). The interim consolidated financial information in this report has not been audited. In the opinion of management, all adjustments, which consist of normal recurring adjustments necessary for a fair statement of the interim period consolidated financial information, have been made. Results of operations reported for interim periods are not necessarily indicative of results for the entire year. The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue and expense, and the disclosures of contingent assets and liabilities. These accounting estimates reflect the best judgment of management, but actual results could differ. Certain reclassifications of prior period amounts have been made to conform to the current period presentation. Recently Adopted Accounting Guidance Effective January 1, 2013, the Company adopted Accounting Standards Update (ASU) No. 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. This guidance requires an entity to present information about significant items reclassified out of Accumulated Other Comprehensive Income (AOCI) by component and for items reclassified out of AOCI and into net income, an entity must disclose the effect of such items on the affected net income line item. The Company presents this information as a separate disclosure in the note s to the financial statements. Refer to Note 10 for further discussion.

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