CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net revenues	$ 4,618	$ 4,128
Operating expenses:
Transaction expense	1,739	1,549
Transaction and credit losses	591	341
Customer support and operations	399	388
Sales and marketing	371	329
Technology and development	605	511
General and administrative	486	419
Restructuring and other charges	29	73
Total operating expenses	4,220	3,610
Operating income	398	518
Other income (expense), net	(135)	199
Income before income taxes	263	717
Income tax expense	179	50
Net income	$ 84	$ 667
Net income per share:
Basic (in usd per share)	$ 0.07	$ 0.57
Diluted (in usd per share)	$ 0.07	$ 0.56
Weighted average shares:
Basic (in shares)	1,173	1,171
Diluted (in shares)	1,185	1,188