XML 69 R57.htm IDEA: XBRL DOCUMENT
v3.21.2

Contingencies (Details Textuals) | Sep. 30, 2021 USD ($) | Jan. 29, 2019 state
--- | --- | ---
Minimum |  |
Loss Contingencies [Line Items] |  |
Current estimate of possible loss | $ 0 |
Maximum |  |
Loss Contingencies [Line Items] |  |
Current estimate of possible loss | 210,000,000 |
Exposure Associated with Card Member Purchases of Goods and Services |  |
Loss Contingencies [Line Items] |  |
Loss accrual | $ 18,000,000 |
Violation Of Federal Antitrust Law And Consumer Laws Class Action Case |  |
Loss Contingencies [Line Items] |  |
Number of states with remaining claims under antitrust laws | state |  | 11
Number of states with remaining claims under consumer protection laws | state |  | 6

X
- Definition Loss Contingency, Number Of States With Remaining Claims Under Antitrust Laws + References No definition available. + Details
Name: | axp_LossContingencyNumberOfStatesWithRemainingClaimsUnderAntitrustLaws
Namespace Prefix: | axp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loss Contingency, Number Of States With Remaining Claims Under Consumer Protection Laws + References No definition available. + Details
Name: | axp_LossContingencyNumberOfStatesWithRemainingClaimsUnderConsumerProtectionLaws
Namespace Prefix: | axp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124440162&loc=d3e12021-110248 + Details
Name: | us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=axp_ExposureAssociatedWithCardMemberPurchasesOfGoodsAndServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_LitigationCaseAxis=axp_ViolationOfFederalAntitrustLawAndConsumerLawsClassActionCaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |