Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Non-interest revenues
Total non-interest revenues		$ 42,967	$ 34,630	$ 28,102
Interest income
Interest on loans		11,967	8,850	9,779
Interest and dividends on investment securities		96	83	127
Deposits with banks and other		595	100	177
Total interest income		12,658	9,033	10,083
Interest expense
Deposits		1,527	458	943
Long-term debt and other		1,236	825	1,155
Total interest expense		2,763	1,283	2,098
Net interest income		9,895	7,750	7,985
Total revenues net of interest expense		52,862	42,380	36,087
Provisions for credit losses
Provisions for credit losses		2,182	(1,419)	4,730
Total revenues net of interest expense after provisions for credit losses		50,680	43,799	31,357
Expenses
Card Member rewards		14,002	11,007	8,041
Business development		4,943	3,762	3,051
Card Member services		2,959	1,993	1,230
Marketing		5,458	5,291	3,696
Salaries and employee benefits		7,252	6,240	5,718
Other, net		6,481	4,817	5,325
Total expenses		41,095	33,110	27,061
Pretax income		9,585	10,689	4,296
Income tax provision		2,071	2,629	1,161
Net income		$ 7,514	$ 8,060	$ 3,135
Earnings per Common Share
Basic (in dollars per share)	[1]	$ 9.86	$ 10.04	$ 3.77
Diluted (in dollars per share)	[1]	$ 9.85	$ 10.02	$ 3.77
Average common shares outstanding for earnings per common share:
Basic (in shares)		751	789	805
Diluted (in shares)		752	790	806
Card Member receivables
Provisions for credit losses
Provisions for credit losses		$ 627	$ (73)	$ 1,015
Card Member loans
Provisions for credit losses
Provisions for credit losses		1,514	(1,155)	3,453
Other
Provisions for credit losses
Provisions for credit losses		41	(191)	262
Discount revenue
Non-interest revenues
Total non-interest revenues		30,739	24,563	19,435
Net card fees
Non-interest revenues
Total non-interest revenues		6,070	5,195	4,664
Service fees and other revenue
Non-interest revenues
Total non-interest revenues		4,521	3,316	2,702
Processed revenue
Non-interest revenues
Total non-interest revenues		$ 1,637	$ 1,556	$ 1,301

[1] Represents net income less (i) earnings allocated to participating share awards of $57 million, $56 million and $20 million for the years ended December 31, 2022, 2021 and 2020, respectively, (ii) dividends on preferred shares of $57 million, $71 million and $79 million for the years ended December 31, 2022, 2021 and 2020, respectively, and (iii) equity-related adjustments of $16 million related to the redemption of preferred shares for the year ended December 31, 2021.