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Segment Information (Narrative) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
segment
country
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Segment Reporting Information [Line Items]      
Number of reportable segments | segment 3    
Amount related to discontinued operations that is excluded from total asset $ 6 $ 1 $ 8
Number of countries in which entity operates (more than 130) | country 130    
Acquisition, integration and severance costs $ 281 171 21
International Solutions [Member]      
Segment Reporting Information [Line Items]      
Long-term assets, excluding goodwill and other intangible assets 550 470  
Global Financial Solutions [Member]      
Segment Reporting Information [Line Items]      
Acquisition, integration and severance costs 0 0 0
Global Financial Solutions [Member] | Plan for Reorganization and Streamlining of Operations [Member]      
Segment Reporting Information [Line Items]      
Severance costs   45  
SunGard [Member]      
Segment Reporting Information [Line Items]      
Acquisition, integration and severance costs $ 281    
Recent Acquisitions [Member]      
Segment Reporting Information [Line Items]      
Acquisition, integration and severance costs   $ 171 $ 21
Sales Revenue, Net [Member]      
Segment Reporting Information [Line Items]      
Concentration risk 10.00% 10.00% 10.00%
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member]      
Segment Reporting Information [Line Items]      
Concentration risk 24.00% 22.00% 22.00%