Other Assets (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 2,927	$ 2,749
Acquisitions	19	201
Dispositions	0	0
Other, including foreign currency translation	63	(23)
Goodwill, Ending Balance	3,009	2,927
U S Consumer Services [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	122	122
Acquisitions	4	0
Dispositions	0	0
Other, including foreign currency translation	1	0
Goodwill, Ending Balance	127	122
International Consumer and Network Services [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	604	620
Acquisitions	15	0
Dispositions	0	0
Other, including foreign currency translation	41	(16)
Goodwill, Ending Balance	660	604
Global Commercial Services [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,712	1,715
Acquisitions	0	0
Dispositions	0	0
Other, including foreign currency translation	12	(3)
Goodwill, Ending Balance	1,724	1,712
Global Merchant Services [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	489	291
Acquisitions	0	201
Dispositions	0	0
Other, including foreign currency translation	9	(3)
Goodwill, Ending Balance	498	489
Corporate and Other [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	0	1
Acquisitions	0	0
Dispositions	0	0
Other, including foreign currency translation	0	(1)
Goodwill, Ending Balance	$ 0	$ 0