Represents the percentage of the Company's worldwide billed business that is generated from the Company's Delta SkyMiles Credit Card co-brand portfolio accounts.

No definition available.

Name:	axp_CoBrandPortfolioAccountPercentageOfWorldwideBilledBusiness
Namespace Prefix:	axp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the percentage of the Company's worldwide Card Member lending receivables that are attributable to the Company's Delta SkyMiles Credit Card co-brand portfolio accounts.

No definition available.

Name:	axp_CoBrandPortfolioAccountPercentageOfWorldwideCardMemberLendingReceivables
Namespace Prefix:	axp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Name:	axp_SignificantCreditConcentrationsTextualsAbstract
Namespace Prefix:	axp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration