Condensed Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenue	$ 2,112	$ 2,106	$ 4,169	$ 4,172
Cost of revenue	1,404	1,414	2,785	2,828
Gross profit	708	692	1,384	1,344
Selling, general and administrative expenses	317	339	678	697
Operating income	391	353	706	647
Other income (expense):
Interest expense, net	(72)	(73)	(147)	(144)
Other income (expense), net	(120)	(4)	(172)	(2)
Total other income (expense), net	(192)	(77)	(319)	(146)
Earnings before income taxes and equity method investment earnings (loss)	199	276	387	501
Provision (benefit) for income taxes	40	51	72	85
Equity method investment earnings (loss)	(4)	(7)	(11)	(8)
Net earnings	155	218	304	408
Net (earnings) loss attributable to noncontrolling interest	(1)	(6)	(2)	(14)
Net earnings attributable to FIS common stockholders	$ 154	$ 212	$ 302	$ 394
Net earnings per share — basic attributable to FIS common stockholders (in dollars per share)	$ 0.48	$ 0.64	$ 0.93	$ 1.20
Weighted average shares outstanding — basic (in shares)	324	329	323	329
Net earnings per share — diluted attributable to FIS common stockholders (in dollars per share)	$ 0.47	$ 0.64	$ 0.92	$ 1.18
Weighted average shares outstanding — diluted (in shares)	327	333	327	334

Interest Income (Expense) and Nonoperating Income (Expense)

No definition available.

Name:	fis_InterestExpenseandNonoperatingIncomeExpense
Namespace Prefix:	fis_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.