Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Non-interest revenues
Non-interest revenues		$ 9,536	$ 7,234
Interest income
Interest on loans		2,473	2,144
Interest and dividends on investment securities		13	24
Deposits with banks and other		34	24
Total interest income		2,520	2,192
Interest expense
Deposits		122	134
Long-term debt and other		199	228
Total interest expense		321	362
Net interest income		2,199	1,830
Total revenues net of interest expense		11,735	9,064
Provisions for credit losses
Total provisions for credit losses		(33)	(675)
Total revenues net of interest expense after provisions for credit losses		11,768	9,739
Expenses
Card Member rewards		3,111	2,243
Business development		1,043	802
Card Member services		626	317
Marketing		1,224	964
Salaries and employee benefits		1,654	1,550
Other, net		1,398	870
Total expenses		9,056	6,746
Pretax income		2,712	2,993
Income tax provision		613	758
Net income		$ 2,099	$ 2,235
Earnings per Common Share
Basic (in dollars per share)	[1]	$ 2.73	$ 2.74
Diluted (in dollars per share)	[1]	$ 2.73	$ 2.74
Average common shares outstanding for earnings per common share:
Basic (in shares)		757	804
Diluted (in shares)		758	805
Card Member Receivables
Provisions for credit losses
Total provisions for credit losses		$ 80	$ (10)
Card Member Loans
Provisions for credit losses
Total provisions for credit losses		(111)	(573)
Other
Provisions for credit losses
Total provisions for credit losses		(2)	(92)
Discount revenue
Non-interest revenues
Non-interest revenues		6,835	5,001
Net card fees
Non-interest revenues
Non-interest revenues		1,423	1,253
Service fees and other revenue
Non-interest revenues
Non-interest revenues		906	638
Processed revenue
Non-interest revenues
Non-interest revenues		$ 372	$ 342

[1] Represents net income less (i) earnings allocated to participating share awards of $16 million and $15 million for the three months ended March 31, 2022 and 2021, respectively, and (ii) dividends on preferred shares of $14 million for both the three months ended March 31, 2022 and 2021.