Customer Deposits - By Deposit Type (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Deposits, by Type
Savings and transaction accounts	$ 101,419	$ 93,722
Certificates of deposit:
Direct	5,166	5,557
Third-party (brokered)	11,092	12,960
Sweep accounts – Third-party (brokered)	15,806	15,907
Interest-bearing Deposit Liabilities, Domestic	133,483	128,146
Other deposits	80	77
Total customer deposits	134,418	129,144
Card Member Credit Balances
Certificates of deposit:
Card Member credit balances	$ 855	$ 921

Other Interest And Noninterest-Bearing Deposit Liabilities

No definition available.

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Balance Type:	credit
Period Type:	instant

- Definition

Represents third party certificate of deposit accounts offered by the Company's Banks.

+ References

No definition available.

+ Details

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- Definition

Represents third party sweep accounts offered by the Company's Banks.

+ References

No definition available.

+ Details

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- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

+ Details

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- References

No definition available.

+ Details

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- Definition

Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).

+ References

+ Details

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- Definition

Total amount of interest-bearing domestic deposit liabilities, which may include brokered, retail, demand, checking, notice of withdrawal, money market and other interest-bearing deposits.

+ References

+ Details

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- Definition

Amount of interest-bearing domestic certificate of deposit liabilities.

+ References

+ Details

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- References

No definition available.

+ Details

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- Definition

The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.

+ References

+ Details

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- Details

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