Other Assets (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 3,009	$ 2,927
Acquisitions	90	19
Dispositions	0	0
Other, including foreign currency translation	(27)	63
Goodwill, Ending Balance	3,072	3,009
Global Consumer Services Group [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	637	590
Acquisitions	90	19
Dispositions	0	0
Other, including foreign currency translation	(20)	28
Goodwill, Ending Balance	707	637
Global Commercial Services [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,724	1,711
Acquisitions	0	0
Dispositions	0	0
Other, including foreign currency translation	(6)	13
Goodwill, Ending Balance	1,718	1,724
Global Merchant and Network Services [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	648	626
Acquisitions	0	0
Dispositions	0	0
Other, including foreign currency translation	(1)	22
Goodwill, Ending Balance	647	648
Corporate and Other [Member]
Goodwill [Roll Forward]
Acquisitions	0	0
Dispositions	0	0
Other, including foreign currency translation	$ 0	$ 0