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Non-Interest Revenue and Expense Detail (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Details Of Certain Statements Of Income Lines Details [Abstract] |  |
Foreign currency conversion fee revenue | $ 199 | $ 196
Delinquency fees | 214 | 200
Loyalty Partner-related fees | 102 | 94
Travel commissions and fees | 84 | 80
Other | 114 | 110
Total Other fees and commissions | $ 713 | $ 680

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- Definition Represents amounts to cardmembers for failure to pay the outstanding (or minimum balance) on their cards by the due date. + References No definition available. + Details
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- Definition Details of Certain Statements of Income Lines Details. + References No definition available. + Details
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- Definition Primary financial statement caption in which reported facts about foreign currency gain (loss) have been included. + References No definition available. + Details
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- Definition Represents fees generated by the Loyalty Partner business. + References No definition available. + Details
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Namespace Prefix: | axp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents revenues from miscellaneous items within other commissions and fees not previously classified. + References No definition available. + Details
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- Definition Commissions and fees earned by charging clients transaction or management fees for selling and arranging travel and travel management services. Client transaction fee revenue is recognized at the time the client books the travel arrangements. Travel management services revenue is recognized over the contractual term of the agreement. The Company's travel suppliers (for example, airlines, hotels, car rental companies) pay commissions and fees on tickets issued, sales and other services based on contractual agreements. Commissions and fees from travel suppliers are generally recognized at the time a ticket is purchased or over the term of the contract. Commissions and fees that are based on actual usage that is unknown at time of purchase (for example, hotel and car rentals), are recognized when cash is received. + References No definition available. + Details
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- Definition Amount of fee and commission revenue classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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