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Business Segments and Revenue from Contracts with Customers - Segment Results and Reconciliation (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |  |
Net interest income (loss) | $ 27,114 | $ 24,171 | $ 22,913
Non-interest income (loss) | 7,136 | 6,264 | 5,610
Total net revenue (loss) | 34,250 | 30,435 | 28,523
Provision (benefit) for credit losses | 5,847 | (1,944) | 10,264
Non-interest expense | 19,163 | 16,570 | 15,056
Income (loss) from continuing operations before income taxes | 9,240 | 15,809 | 3,203
Income tax provision (benefit) | 1,880 | 3,415 | 486
Income (loss) from continuing operations, net of tax | 7,360 | 12,394 | 2,717
Total loans held for investment | 312,331 | 277,340 | 251,624
Total Deposits | 332,992 | 310,980 | 305,442
Uncollectible portion of billed finance charges and fees | 946 | 629 | 1,100
Operating segments | Credit Card |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income (loss) | 16,584 | 14,074 | 13,776
Non-interest income (loss) | 5,771 | 4,806 | 3,823
Total net revenue (loss) | 22,355 | 18,880 | 17,599
Provision (benefit) for credit losses | 4,265 | (902) | 7,327
Non-interest expense | 11,627 | 9,621 | 8,491
Income (loss) from continuing operations before income taxes | 6,463 | 10,161 | 1,781
Income tax provision (benefit) | 1,536 | 2,403 | 420
Income (loss) from continuing operations, net of tax | 4,927 | 7,758 | 1,361
Total loans held for investment | 137,730 | 114,772 | 106,956
Total Deposits | 0 | 0 | 0
Operating segments | Consumer Banking |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income (loss) | 8,965 | 8,448 | 7,238
Non-interest income (loss) | 469 | 554 | 466
Total net revenue (loss) | 9,434 | 9,002 | 7,704
Provision (benefit) for credit losses | 1,173 | (521) | 1,753
Non-interest expense | 5,312 | 4,711 | 4,159
Income (loss) from continuing operations before income taxes | 2,949 | 4,812 | 1,792
Income tax provision (benefit) | 699 | 1,136 | 425
Income (loss) from continuing operations, net of tax | 2,250 | 3,676 | 1,367
Total loans held for investment | 79,925 | 77,646 | 68,888
Total Deposits | 270,592 | 256,407 | 249,815
Operating segments | Commercial Banking |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income (loss) | 2,461 | 2,153 | 2,048
Non-interest income (loss) | 1,129 | 1,148 | 923
Total net revenue (loss) | 3,590 | 3,301 | 2,971
Provision (benefit) for credit losses | 415 | (519) | 1,181
Non-interest expense | 2,070 | 1,815 | 1,706
Income (loss) from continuing operations before income taxes | 1,105 | 2,005 | 84
Income tax provision (benefit) | 262 | 473 | 19
Income (loss) from continuing operations, net of tax | 843 | 1,532 | 65
Total loans held for investment | 94,676 | 84,922 | 75,780
Total Deposits | 40,808 | 44,809 | 39,590
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income (loss) | (896) | (504) | (149)
Non-interest income (loss) | (233) | (244) | 398
Total net revenue (loss) | (1,129) | (748) | 249
Provision (benefit) for credit losses | (6) | (2) | 3
Non-interest expense | 154 | 423 | 700
Income (loss) from continuing operations before income taxes | (1,277) | (1,169) | (454)
Income tax provision (benefit) | (617) | (597) | (378)
Income (loss) from continuing operations, net of tax | (660) | (572) | (76)
Total loans held for investment | 0 | 0 | 0
Total Deposits | $ 21,592 | $ 9,764 | $ 16,037

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