Other Assets (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 3,072	$ 3,009
Acquisitions	255	90
Dispositions	0	0
Other	(12)	(27)
Goodwill, ending balance	3,315	3,072
Global Consumer Services Group [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	707	637
Acquisitions	189	90
Dispositions	0	0
Other	(7)	(20)
Goodwill, ending balance	889	707
Global Commercial Services [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	1,718	1,724
Acquisitions	66	0
Dispositions	0	0
Other	(3)	(6)
Goodwill, ending balance	1,781	1,718
Global Merchant and Network Services [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	647	648
Acquisitions	0	0
Dispositions	0	0
Other	(2)	(1)
Goodwill, ending balance	$ 645	$ 647