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v3.25.0.1

Contingencies and Commitments (Details Textual) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) state | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Loss Contingencies [Line Items] |  |  |  |
Total lease expense |  | $ 189 | $ 164 | $ 188
Lease Liabilities |  | $ 933 | $ 926 |
Weighted average remaining lease term |  | 17 years | 19 years |
Weighted average lease discount rate (as a percent) |  | 4.00% | 3.00% |
Commitments related to agreements with certain cobrand partners |  | $ 12,900 |  |
American Express National Bank |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Carrying value of Federal Reserve Bank shares held |  | $ 132 | $ 132 |
Violation Of Federal Antitrust Law And Consumer Laws Class Action Case | Holders of Visa and MasterCard Debit Cards |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of states with remaining claims | state |  | 8 |  |
Violation Of Federal Antitrust Law And Consumer Laws Class Action Case | Holders of Visa, MasterCard and Discover Credit Cards with no Rewards or Annual Fee |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of states with remaining claims | state |  | 2 |  |
Investigations into Historical Sales Practices | Subsequent Event [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Amount required to pay for resolution | $ 230 |  |  |
Minimum |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss contingency, estimate of possible loss |  | $ 0 |  |
Financial commitments, period |  | 5 years |  |
Maximum |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss contingency, estimate of possible loss |  | $ 160 |  |
Financial commitments, period |  | 10 years |  |

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