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v2.4.1.9

Changes in Accumulated Other Comprehensive Income (Details 1) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Other non-interest revenue | $ 2,989,000,000 us-gaap_NoninterestIncomeOtherOperatingIncome | $ 2,274,000,000 us-gaap_NoninterestIncomeOtherOperatingIncome | $ 2,425,000,000 us-gaap_NoninterestIncomeOtherOperatingIncome
Interest Expense, Long-term Debt | 1,334,000,000 us-gaap_InterestExpenseLongTermDebt | 1,516,000,000 us-gaap_InterestExpenseLongTermDebt | 1,746,000,000 us-gaap_InterestExpenseLongTermDebt
Other expense | 6,089,000,000 us-gaap_OtherNoninterestExpense | 6,796,000,000 us-gaap_OtherNoninterestExpense | 6,851,000,000 us-gaap_OtherNoninterestExpense
Net Unrealized Investment Gains (Losses) on Investment Securities [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Other non-interest revenue | 111,000,000 us-gaap_NoninterestIncomeOtherOperatingIncome / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember | 145,000,000 us-gaap_NoninterestIncomeOtherOperatingIncome / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember |
Income tax provision for other non-interest revenue | (40,000,000)axp_NoninterestIncomeOtherOperatingIncomeTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember | (52,000,000)axp_NoninterestIncomeOtherOperatingIncomeTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember |
Increase (decrease) due to amounts reclassified into earnings | 71,000,000 axp_OtherComprehensiveIncomeReclassification / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember | 93,000,000 axp_OtherComprehensiveIncomeReclassification / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember |
Foreign Currency Translation Adjustments [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Other expense | (9,000,000)us-gaap_OtherNoninterestExpense / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember | 0 us-gaap_OtherNoninterestExpense / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
Income tax benefit for other, net expense | 4,000,000 axp_OtherNonInterestExpenseTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember | 0 axp_OtherNonInterestExpenseTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
Increase (decrease) due to amounts reclassified into earnings | (5,000,000)axp_OtherComprehensiveIncomeReclassification / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember | 0 axp_OtherComprehensiveIncomeReclassification / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
Accumulated Other Comprehensive Income (Loss) [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Increase (decrease) due to amounts reclassified into earnings | $ 66,000,000 axp_OtherComprehensiveIncomeReclassification / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | $ 93,000,000 axp_OtherComprehensiveIncomeReclassification / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |

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