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Employee Benefit Plans (Schedule of Options Granted) (Details) - shares
shares in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Options outstanding (in shares) 17 16 15 14
FIS Restated Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Options available for grant, beginning (in shares) 26 7    
Options granted in period (in shares) 5 3    
Options outstanding (in shares) 17 16    
Options available for grant, ending (in shares) 21 26