Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Flows from Operating Activities
Net income	$ 140	$ 22
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Provisions for credit losses	(14)	103
Amortization of underwriting expense	2	4
Deferred taxes	24	(6)
Changes in operating assets and liabilities:
Interest, taxes and other amounts due to/from affiliates	(11)	(4)
Other operating assets and liabilities	(305)	108
Net cash provided by operating activities	(164)	227
Cash Flows from Investing Activities
Net decrease in Card Member receivables and Card Member loans	640	10,640
Net decrease (increase) in loans to affiliates and other	94	(4,364)
Net (decrease) in due to affiliates and (increase) in due from affiliates	(1,061)	(1,199)
Net cash (used in) provided by investing activities	(327)	5,077
Cash Flows from Financing Activities
Net decrease in short-term debt	0	(1,642)
Net increase in short-term debt to affiliates	538	2,021
Principal payments of long-term debt	0	(2,450)
Proceeds from long-term debt to affiliates	41	8,006
Principal payments of long-term debt to affiliates	0	(11,235)
Net cash provided by (used in) financing activities	579	(5,300)
Effect of foreign currency exchange rates on cash and cash equivalents	3	(10)
Net increase (decrease) in cash and cash equivalents	91	(6)
Cash and cash equivalents at beginning of period	601	149
Cash and cash equivalents at end of period	$ 692	$ 143