Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues
Discount revenue earned from purchased Card Member receivables and Card Member loans	$ 1,017	$ 760	$ 471
Interest income from affiliates and other	383	279	207
Finance revenue	61	48	40
Total revenues	1,461	1,087	718
Expenses
Provisions for losses	249	244	151
Interest expense	626	495	317
Interest expense to affiliates	225	58	24
Other, net	(55)	15	14
Total expenses	1,045	812	506
Pretax income	416	275	212
Income tax provision	29	878	15
Net income (loss)	$ 387	$ (603)	$ 197