Condensed Consolidated Statements of Comprehensive Earnings - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net earnings	$ 190	$ 135
Other comprehensive earnings, before tax:
Unrealized gain (loss) on investments and derivatives	0	0
Reclassification adjustment for gains (losses) included in net earnings	0	0
Unrealized gain (loss) on investments and derivatives, net	0	0
Foreign currency translation adjustments	14	36
Minimum pension liability adjustment	0	0
Other comprehensive earnings (loss), before tax:	14	36
Provision for income tax expense (benefit) related to items of other comprehensive earnings	0	0
Other comprehensive earnings (loss), net of tax	14	36
Comprehensive earnings (loss):	204	171
Net (earnings) loss attributable to noncontrolling interest	(8)	(6)
Other comprehensive (earnings) losses attributable to noncontrolling interest	0	(3)
Comprehensive earnings (loss) attributable to FIS common stockholders	$ 196	$ 162

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