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Segment Information - Narrative (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) country	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) country	Jun. 30, 2020 USD ($)
COVID-19 Pandemic
Segment Reporting Information
Incremental charges | $	$ 10	$ 12	$ 19	$ 15
Accelerated stock compensation expense | $	104
Worldpay
Segment Reporting Information
Data center consolidation costs | $	$ 12	$ 22	$ 28	$ 40
Merchant Solutions | Minimum
Segment Reporting Information
Number of countries we operate in (more than) | country	140		140
Banking Solutions | Minimum
Segment Reporting Information
Number of countries we operate in (more than) | country	100		100
Capital Market Solutions | Minimum
Segment Reporting Information
Number of countries we operate in (more than) | country	100		100

X

- Definition

Data Center Consolidation Costs

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- Definition

Incremental Charges

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- Definition

The number of countries in which the entity operates as of balance sheet date.

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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

Amount of additional cost recognized for award under share-based payment arrangement from occurrence of event accelerating recognition of cost.

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- Details

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- Details

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- Details

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