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Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Non Interest Revenues [Abstract] |  |  |  |
Other |  | $ 874 | $ 1,430 | $ 1,360
Total non-interest revenues |  | 28,102 | 34,936 | 32,675
Interest income |  |  |  |
Interest on loans |  | 9,779 | 11,308 | 9,941
Interest and dividends on investment securities |  | 127 | 188 | 118
Deposits with banks and other |  | 177 | 588 | 547
Total interest income |  | 10,083 | 12,084 | 10,606
Interest expense |  |  |  |
Deposits |  | 943 | 1,559 | 1,287
Long-term debt and other |  | 1,155 | 1,905 | 1,656
Total interest expense |  | 2,098 | 3,464 | 2,943
Net interest income |  | 7,985 | 8,620 | 7,663
Total revenues net of interest expense |  | 36,087 | 43,556 | 40,338
Provisions for credit losses |  |  |  |
Provisions for credit losses |  | 4,730 | 3,573 | 3,352
Total revenues net of interest expense after provisions for credit losses |  | 31,357 | 39,983 | 36,986
Expenses |  |  |  |
Marketing and business development |  | 6,747 | 7,125 | 6,477
Card Member rewards |  | 8,041 | 10,439 | 9,696
Card Member services |  | 1,230 | 2,223 | 1,777
Salaries and employee benefits |  | 5,718 | 5,911 | 5,250
Other, net |  | 5,325 | 5,856 | 5,664
Total expenses |  | 27,061 | 31,554 | 28,864
Pretax income |  | 4,296 | 8,429 | 8,122
Income tax provision |  | 1,161 | 1,670 | 1,201
Net income |  | $ 3,135 | $ 6,759 | $ 6,921
Earnings per Common Share |  |  |  |
Basic (in dollars per share) | [1] | $ 3.77 | $ 8.00 | $ 7.93
Diluted (in dollars per share) | [1] | $ 3.77 | $ 7.99 | $ 7.91
Average common shares outstanding for earnings per common share: |  |  |  |
Basic (in shares) |  | 805 | 828 | 856
Diluted (in shares) |  | 806 | 830 | 859
Card Member Receivables [Member] |  |  |  |
Provisions for credit losses |  |  |  |
Provisions for credit losses |  | $ 1,015 | $ 963 | $ 937
Card Member Loans [Member] |  |  |  |
Provisions for credit losses |  |  |  |
Provisions for credit losses |  | 3,453 | 2,462 | 2,266
Other Loans [Member] |  |  |  |
Provisions for credit losses |  |  |  |
Provisions for credit losses |  | 262 | 148 | 149
Discount Revenue [Member] |  |  |  |
Non Interest Revenues [Abstract] |  |  |  |
Revenues, fees, and commissions |  | 20,401 | 26,167 | 24,721
Net Card Fees [Member] |  |  |  |
Non Interest Revenues [Abstract] |  |  |  |
Revenues, fees, and commissions |  | 4,664 | 4,042 | 3,441
Other Fees and Commissions [Member] |  |  |  |
Non Interest Revenues [Abstract] |  |  |  |
Revenues, fees, and commissions |  | $ 2,163 | $ 3,297 | $ 3,153
[1] | Represents net income less (i) earnings allocated to participating share awards of $20 million, $47 million and $54 million for the years ended December 31, 2020, 2019 and 2018, respectively, and (ii) dividends on preferred shares of $79 million, $81 million and $80 million for the years ended December 31, 2020, 2019 and 2018, respectively.

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