XML 88 R57.htm IDEA: XBRL DOCUMENT
v3.20.1

Customer Deposits (Details 3) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Time Deposits $250,000 Or More [Line Items] |  |
Time Deposits, $250,000 or More | $ 843 | $ 626
United States [Member] |  |
Time Deposits $250,000 Or More [Line Items] |  |
Time Deposits, $250,000 or More | 839 | 622
Non-US [Member] |  |
Time Deposits $250,000 Or More [Line Items] |  |
Time Deposits, $250,000 or More | $ 4 | $ 4

X
- References No definition available. + Details
Name: | axp_TimeDeposits250000LineItems
Namespace Prefix: | axp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations that meet or exceed the Federal Deposit Insurance Corporation (FDIC) insurance limit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818 + Details
Name: | us-gaap_TimeDepositsAtOrAboveFDICInsuranceLimit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=us-gaap_NonUsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |