v3.25.1

Revenue from Contracts with Customers (Schedule of Revenue from Contracts with Customers Disaggregated by Business Segment) (Details) - USD ($)
$ in Millions

3 Months Ended

Mar. 31, 2025

Mar. 31, 2024

Disaggregation of Revenue [Line Items]

Discount and interchange revenue, net

^[1]

$ 334

$ 321

Protection products revenue

Transaction processing revenue

Other income

Noninterest Income, Other, Subject to ASC 606

Total other income subject to ASC 606

^[2]

489

473

Loan fee income

204

200

Revenue Not from Contract with Customer, Excluding Interest Income

204

200

Total other income

693

673

Customer rewards included in discount and interchange revenue

703

Deposit product fees reported in net interest income and excluded from other income subject to ASC 606

Operating Segments [Member] | Digital Banking [Member]

Disaggregation of Revenue [Line Items]

Discount and interchange revenue, net

^[1]

308

296

Protection products revenue

Transaction processing revenue

Other income

Noninterest Income, Other, Subject to ASC 606

Total other income subject to ASC 606

^[2]

352

341

Loan fee income

204

200

Revenue Not from Contract with Customer, Excluding Interest Income

204

200

Total other income

556

541

Operating Segments [Member] | Payment Services [Member]

Disaggregation of Revenue [Line Items]

Discount and interchange revenue, net

^[1]

Protection products revenue

Transaction processing revenue

Other income

Noninterest Income, Other, Subject to ASC 606

Total other income subject to ASC 606

^[2]

137

132

Loan fee income

Revenue Not from Contract with Customer, Excluding Interest Income

Total other income

$ 137

$ 132

[1]	Net of rewards, including Cashback Bonus rewards, of $703 million for the three months ended March 31, 2025 and 2024.
[2]	Excludes $1 million and $2 million of deposit product fees that are reported within net interest income for the three months ended March 31, 2025 and 2024, respectively.

- Definition

Customer Rewards and Issuer Interchange

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- Definition

Includes discount revenue and acquirer interchange net of interchange paid to third-party issuers. Discount revenue is earned from fees charged to merchants with whom the entity has entered into card acceptance agreements for processing cardholder purchase transactions and acquirer interchange revenue from merchant acquirers on all Discover Network card transactions made by cardholders at merchants with whom merchant acquirers have entered into card acceptance agreements for processing cardholder purchase transactions.

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- Definition

Loan Fee Income

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- Definition

Noninterest Income, Other, Subject to ASC 606

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- Definition

Protection products revenue

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- Definition

Revenues earned from switch fees charged to financial institutions for accessing our network to process transactions and various participation and membership fees. Switch fees are charged on a per transaction basis.

+ References

No definition available.

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- 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.

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- Definition

Early withdrawal penalties on domestic deposits which discourage customer withdrawal prior to maturity.

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- Definition

The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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- Definition

Represents the total of noninterest income derived from certain activities and assets including (for example): (1) venture capital investments; (2) bank owned life insurance; (3) foreign currency transactions; and (4) mortgage servicing rights.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Amount, excluding interest income, of revenue not accounted for under Topic 606.

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