Condensed Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenue	$ 3,078	$ 2,057
Cost of revenue	2,089	1,381
Gross profit	989	676
Selling, general, and administrative expenses	881	361
Operating income	108	315
Other income (expense):
Interest expense, net	(80)	(75)
Other income (expense), net	(39)	(52)
Total other income (expense), net	(119)	(127)
Earnings (loss) before income taxes and equity method investment earnings (loss)	(11)	188
Provision (benefit) for income taxes	(30)	32
Equity method investment earnings (loss)	(1)	(7)
Net earnings	18	149
Net (earnings) loss attributable to noncontrolling interest	(3)	(1)
Net earnings attributable to FIS common stockholders	$ 15	$ 148
Net earnings per share — basic attributable to FIS common stockholders (in dollars per share)	$ 0.02	$ 0.46
Weighted average shares outstanding — basic (in shares)	616	323
Net earnings per share — diluted attributable to FIS common stockholders (in dollars per share)	$ 0.02	$ 0.45
Weighted average shares outstanding — diluted (in shares)	625	326

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.