Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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-Topic 210
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-Topic 944
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-Topic 230
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-Topic 942
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Name:	us-gaap_RestrictedCashAndCashEquivalents
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Asset Securitizations (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Assets from Trusts [Line Items]
Restricted balances included in Cash and cash equivalents	$ 468	$ 544	$ 1,360	$ 525
American Express Lending Trust
Assets from Trusts [Line Items]
Direct and Indirect ownership of variable interests	14,000	16,000
Restricted balances included in Cash and cash equivalents	60	59
American Express Charge Trust
Assets from Trusts [Line Items]
Direct and Indirect ownership of variable interests	5,400	5,200
Restricted balances included in Cash and cash equivalents	$ 0	$ 0