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Segment Information - (Narrative) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) country	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) country	Sep. 30, 2017 USD ($)
Geographic distribution, foreign
Segment Reporting Information
Long-term assets, excluding goodwill and other intangible assets	$ 535	$ 532	$ 535	$ 532
SunGard
Segment Reporting Information
Acquisition, integration and other costs	$ 16	$ 22	$ 122	$ 141
GFS
Segment Reporting Information
Number of countries we operate in (more than) | country	130		130

X

- Definition

Long-term Assets, Excluding Goodwill and Other Intangible Assets.

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X

- Definition

Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

+ References

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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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- Details

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- Details

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- Details

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