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Document and Entity Information
Sep. 05, 2023
Document And Entity Information [Line Items]  
Amendment Flag false
Entity Central Index Key 0001136893
Document Type 8-K
Document Period End Date Sep. 05, 2023
Entity Registrant Name Fidelity National Information Services, Inc.
Entity Incorporation State Country Code GA
Entity File Number 1-16427
Entity Tax Identification Number 37-1490331
Entity Address, Address Line One 347 Riverside Avenue
Entity Address, City or Town Jacksonville
Entity Address, State or Province FL
Entity Address, Postal Zip Code 32202
City Area Code (904)
Local Phone Number 438-6000
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock Par Value 001 Per Share [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common Stock, par value $0.01 per share
Trading Symbol FIS
Security Exchange Name NYSE
M 1.100 Senior Notes Due 20248 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 1.100% Senior Notes due 2024
Trading Symbol FIS24A
Security Exchange Name NYSE
M 0.625 Senior Notes Due 20251 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 0.625% Senior Notes due 2025
Trading Symbol FIS25B
Security Exchange Name NYSE
M 1.500 Senior Notes Due 20272 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 1.500% Senior Notes due 2027
Trading Symbol FIS27
Security Exchange Name NYSE
M 1.000 Senior Notes Due 20283 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 1.000% Senior Notes due 2028
Trading Symbol FIS28
Security Exchange Name NYSE
M 2.250 Senior Notes Due 20294 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 2.250% Senior Notes due 2029
Trading Symbol FIS29
Security Exchange Name NYSE
M 2.000 Senior Notes Due 20305 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 2.000% Senior Notes due 2030
Trading Symbol FIS30
Security Exchange Name NYSE
M 3.360 Senior Notes Due 20316 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 3.360% Senior Notes due 2031
Trading Symbol FIS31
Security Exchange Name NYSE
M 2.950 Senior Notes Due 20397 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 2.950% Senior Notes due 2039
Trading Symbol FIS39
Security Exchange Name NYSE