Restatement of Annual Financial Statements (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2023 |
Sep. 30, 2023 |
Jun. 30, 2023 |
Mar. 31, 2023 |
Dec. 31, 2022 |
Sep. 30, 2022 |
Jun. 30, 2022 |
Mar. 31, 2022 |
Jun. 30, 2023 |
Jun. 30, 2022 |
Sep. 30, 2023 |
Sep. 30, 2022 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Quarterly Error Corrections and Prior Period Adjustments Restatement [Line Items] | ||||||||||||||||
| Other assets | $ 5,858 | $ 5,696 | $ 4,975 | $ 4,610 | $ 4,742 | $ 4,975 | $ 5,696 | $ 5,858 | $ 4,742 | |||||||
| Total assets | 151,713 | 143,615 | 138,235 | 133,290 | 131,851 | 138,235 | 143,615 | 151,713 | 131,851 | |||||||
| Accrued expenses and other liabilities | 7,216 | 6,464 | 5,590 | 5,789 | 6,212 | 5,590 | 6,464 | 7,216 | 6,212 | |||||||
| Total liabilities | 137,478 | 129,950 | 124,853 | 119,692 | 117,956 | 124,853 | 129,950 | 137,478 | 117,956 | |||||||
| Retained Earnings (Accumulated Deficit) | 29,855 | 29,665 | 29,287 | 28,575 | 27,758 | 29,287 | 29,665 | 29,855 | 27,758 | |||||||
| Stockholders’ equity | 14,235 | 13,665 | 13,382 | 13,598 | 13,895 | 13,382 | 13,665 | 14,235 | 13,895 | $ 12,789 | $ 10,326 | |||||
| Total liabilities and stockholders’ equity | 151,713 | 143,615 | 138,235 | 133,290 | 131,851 | 138,235 | 143,615 | 151,713 | 131,851 | |||||||
| Discount and interchange revenue, net | 354 | 360 | 353 | 314 | 337 | $ 316 | $ 360 | $ 290 | 667 | $ 650 | 1,027 | $ 966 | 1,381 | 1,303 | 1,144 | |
| Other income | 712 | 705 | 684 | 594 | 634 | 606 | 584 | 393 | 1,278 | 977 | 1,983 | 1,583 | 2,695 | 2,217 | 2,490 | |
| Other expense | 263 | 254 | 154 | 154 | 540 | 386 | 803 | 540 | 620 | |||||||
| Other expense | 1,788 | 1,564 | 1,495 | 1,368 | 4,351 | 3,721 | 6,139 | 5,216 | 4,805 | |||||||
| Income before income taxes | 483 | 761 | 1,152 | 1,241 | 1,323 | 1,308 | 1,422 | 1,588 | 2,393 | 3,010 | 3,154 | 4,318 | 3,637 | 5,641 | 6,984 | |
| Income tax expense | 117 | 175 | 263 | 286 | 312 | 310 | 334 | 369 | 549 | 703 | 724 | 1,013 | 841 | 1,325 | 1,596 | |
| Net income | 366 | 586 | 889 | 955 | 1,011 | 998 | 1,088 | 1,219 | 1,844 | 2,307 | 2,430 | 3,305 | 2,796 | 4,316 | 5,388 | |
| Net income (loss) available to common stockholders, basic | $ 364 | $ 550 | $ 883 | $ 918 | $ 1,005 | $ 960 | $ 1,082 | $ 1,182 | $ 1,801 | $ 2,264 | $ 2,351 | $ 3,223 | $ 2,715 | $ 4,228 | $ 5,289 | |
| Basic earnings per common share | $ 1.45 | $ 2.21 | $ 3.49 | $ 3.50 | $ 3.69 | $ 3.51 | $ 3.88 | $ 4.15 | $ 7.00 | $ 8.03 | $ 9.23 | $ 11.55 | $ 10.71 | $ 15.25 | $ 17.64 | |
| Diluted earnings per common share | $ 1.45 | $ 2.21 | $ 3.49 | $ 3.50 | $ 3.68 | $ 3.51 | $ 3.87 | $ 4.14 | $ 6.99 | $ 8.02 | $ 9.22 | $ 11.54 | $ 10.70 | $ 15.23 | $ 17.63 | |
| Deferred income taxes | $ (119) | $ (17) | $ (277) | $ (154) | $ (508) | $ (331) | $ (671) | $ (452) | $ 308 | |||||||
| Increase in accrued expenses and other liabilities | (359) | 249 | (779) | 361 | (30) | 383 | 928 | 1,181 | 490 | |||||||
| Net cash provided by operating activities | 1,791 | 1,734 | 3,298 | 3,346 | 5,687 | 4,965 | 8,563 | 7,140 | 6,019 | |||||||
| Comprehensive income | $ 714 | $ 483 | $ 654 | 1,059 | $ 1,025 | $ 896 | $ 1,050 | 1,100 | 1,713 | 2,150 | 2,196 | 3,046 | 2,910 | 4,071 | 5,249 | |
| Parent Company [Member] | ||||||||||||||||
| Quarterly Error Corrections and Prior Period Adjustments Restatement [Line Items] | ||||||||||||||||
| Other assets | 871 | 811 | 871 | 811 | ||||||||||||
| Total assets | 19,419 | 17,858 | 19,419 | 17,858 | ||||||||||||
| Accrued expenses and other liabilities | 323 | 359 | 323 | 359 | ||||||||||||
| Total liabilities | 5,184 | 3,963 | 5,184 | 3,963 | ||||||||||||
| Stockholders’ equity | 14,235 | 13,895 | 14,235 | 13,895 | ||||||||||||
| Total liabilities and stockholders’ equity | 19,419 | 17,858 | 19,419 | 17,858 | ||||||||||||
| Other expense | (2) | 6 | 10 | |||||||||||||
| Income tax expense | 7 | (25) | (25) | |||||||||||||
| Net income | 2,796 | 4,316 | 5,388 | |||||||||||||
| Deferred income taxes | 2 | (8) | (13) | |||||||||||||
| Increase in accrued expenses and other liabilities | (41) | 27 | 24 | |||||||||||||
| Net cash provided by operating activities | 1,720 | 4,425 | 3,169 | |||||||||||||
| Investment in Bank Subsidiary | 12,340 | 11,279 | 12,340 | 11,279 | ||||||||||||
| Investments in non-bank subsidiaries | 974 | 834 | 974 | 834 | ||||||||||||
| Equity in undistributed net income of subsidiaries | 1,035 | (300) | 2,289 | |||||||||||||
| Equity in undistributed net income of subsidiaries | (1,035) | 300 | (2,289) | |||||||||||||
| Comprehensive income | 2,910 | 4,071 | 5,249 | |||||||||||||
| Retained Earnings [Member] | ||||||||||||||||
| Quarterly Error Corrections and Prior Period Adjustments Restatement [Line Items] | ||||||||||||||||
| Stockholders’ equity | 29,855 | 27,758 | 29,855 | 27,758 | 24,147 | 19,397 | ||||||||||
| Net income | 2,796 | 4,316 | 5,388 | |||||||||||||
| Previously Reported | ||||||||||||||||
| Quarterly Error Corrections and Prior Period Adjustments Restatement [Line Items] | ||||||||||||||||
| Other assets | 5,667 | 5,513 | 4,822 | 4,461 | 4,597 | 4,822 | 5,513 | 5,667 | 4,597 | |||||||
| Total assets | 151,522 | 143,432 | 138,082 | 133,141 | 131,706 | 138,082 | 143,432 | 151,522 | 131,706 | |||||||
| Accrued expenses and other liabilities | 6,432 | 5,710 | 4,963 | 5,178 | 5,618 | 4,963 | 5,710 | 6,432 | 5,618 | |||||||
| Total liabilities | 136,694 | 129,196 | 124,226 | 119,081 | 117,362 | 124,226 | 129,196 | 136,694 | 117,362 | |||||||
| Retained Earnings (Accumulated Deficit) | 30,448 | 30,236 | 29,761 | 29,037 | 28,207 | 29,761 | 30,236 | 30,448 | 28,207 | |||||||
| Stockholders’ equity | 14,828 | 14,236 | 13,856 | 14,060 | 14,344 | 13,856 | 14,236 | 14,828 | 14,344 | 13,180 | 10,683 | |||||
| Total liabilities and stockholders’ equity | 151,522 | 143,432 | 138,082 | 133,141 | 131,706 | 138,082 | 143,432 | 151,522 | 131,706 | |||||||
| Discount and interchange revenue, net | 370 | 377 | 370 | 330 | 357 | 335 | 379 | 309 | 700 | 688 | 1,077 | 1,023 | 1,447 | 1,380 | 1,188 | |
| Other income | 728 | 722 | 701 | 610 | 654 | 625 | 603 | 412 | 1,311 | 1,015 | 2,033 | 1,640 | 2,761 | 2,294 | 2,534 | |
| Other expense | 250 | 144 | 154 | 154 | 430 | 386 | 680 | 540 | ||||||||
| Other expense | 1,775 | 1,454 | 1,495 | 1,368 | 4,241 | 3,721 | 6,016 | 5,216 | ||||||||
| Income before income taxes | 512 | 888 | 1,169 | 1,257 | 1,343 | 1,327 | 1,441 | 1,607 | 2,426 | 3,048 | 3,314 | 4,375 | 3,826 | 5,718 | 7,028 | |
| Income tax expense | 124 | 205 | 268 | 289 | 318 | 314 | 338 | 373 | 557 | 712 | 762 | 1,026 | 886 | 1,344 | 1,606 | |
| Net income | 388 | 683 | 901 | 968 | 1,025 | 1,013 | 1,103 | 1,234 | 1,869 | 2,336 | 2,552 | 3,349 | 2,940 | 4,374 | 5,422 | |
| Net income (loss) available to common stockholders, basic | $ 386 | $ 647 | $ 895 | $ 931 | $ 1,019 | $ 975 | $ 1,097 | $ 1,197 | $ 1,826 | $ 2,293 | $ 2,473 | $ 3,267 | $ 2,859 | $ 4,286 | $ 5,323 | |
| Basic earnings per common share | $ 1.54 | $ 2.59 | $ 3.54 | $ 3.55 | $ 3.74 | $ 3.57 | $ 3.93 | $ 4.20 | $ 7.09 | $ 8.13 | $ 9.70 | $ 11.70 | $ 11.27 | $ 15.45 | $ 17.75 | |
| Diluted earnings per common share | $ 1.54 | $ 2.59 | $ 3.54 | $ 3.55 | $ 3.74 | $ 3.56 | $ 3.93 | $ 4.20 | $ 7.09 | $ 8.12 | $ 9.69 | $ 11.69 | $ 11.26 | $ 15.44 | $ 17.74 | |
| Deferred income taxes | $ (115) | $ (13) | $ (269) | $ (145) | $ (470) | $ (317) | $ (626) | $ (433) | $ 318 | |||||||
| Increase in accrued expenses and other liabilities | (376) | 230 | (812) | 323 | (190) | 325 | 739 | 1,104 | 446 | |||||||
| Net cash provided by operating activities | 1,791 | 1,734 | 3,298 | 3,346 | 5,687 | 4,965 | 8,563 | 7,140 | 6,019 | |||||||
| Comprehensive income | $ 736 | $ 580 | $ 666 | 1,072 | $ 1,039 | $ 911 | $ 1,065 | 1,115 | 1,738 | 2,179 | 2,318 | 3,090 | 3,054 | 4,129 | 5,283 | |
| Previously Reported | Parent Company [Member] | ||||||||||||||||
| Quarterly Error Corrections and Prior Period Adjustments Restatement [Line Items] | ||||||||||||||||
| Total assets | 20,012 | 18,307 | 20,012 | 18,307 | ||||||||||||
| Stockholders’ equity | 14,828 | 14,344 | 14,828 | 14,344 | ||||||||||||
| Total liabilities and stockholders’ equity | 20,012 | 18,307 | 20,012 | 18,307 | ||||||||||||
| Net income | 2,940 | 4,374 | 5,422 | |||||||||||||
| Net cash provided by operating activities | 1,720 | 4,425 | 3,169 | |||||||||||||
| Investment in Bank Subsidiary | 12,791 | 11,685 | 12,791 | 11,685 | ||||||||||||
| Investments in non-bank subsidiaries | 1,116 | 877 | 1,116 | 877 | ||||||||||||
| Equity in undistributed net income of subsidiaries | 1,179 | (242) | 2,323 | |||||||||||||
| Equity in undistributed net income of subsidiaries | (1,179) | 242 | (2,323) | |||||||||||||
| Comprehensive income | 3,054 | 4,129 | 5,283 | |||||||||||||
| Previously Reported | Retained Earnings [Member] | ||||||||||||||||
| Quarterly Error Corrections and Prior Period Adjustments Restatement [Line Items] | ||||||||||||||||
| Stockholders’ equity | 30,448 | 28,207 | 30,448 | 28,207 | 24,538 | 19,754 | ||||||||||
| Net income | 2,940 | 4,374 | 5,422 | |||||||||||||
| Revision of Prior Period, Error Correction, Adjustment | ||||||||||||||||
| Quarterly Error Corrections and Prior Period Adjustments Restatement [Line Items] | ||||||||||||||||
| Other assets | 191 | 183 | 153 | 149 | 145 | 153 | 183 | 191 | 145 | |||||||
| Total assets | 191 | 183 | 153 | 149 | 145 | 153 | 183 | 191 | 145 | |||||||
| Accrued expenses and other liabilities | 784 | 754 | 627 | 611 | 594 | 627 | 754 | 784 | 594 | |||||||
| Total liabilities | 784 | 754 | 627 | 611 | 594 | 627 | 754 | 784 | 594 | |||||||
| Retained Earnings (Accumulated Deficit) | (593) | (571) | (474) | (462) | (449) | (474) | (571) | (593) | (449) | |||||||
| Stockholders’ equity | (593) | (571) | (474) | (462) | (449) | (474) | (571) | (593) | (449) | (391) | (357) | |||||
| Total liabilities and stockholders’ equity | 191 | 183 | 153 | 149 | 145 | 153 | 183 | 191 | 145 | |||||||
| Discount and interchange revenue, net | (16) | (17) | (17) | (16) | (20) | (19) | (19) | (19) | (33) | (38) | (50) | (57) | (66) | (77) | (44) | |
| Other income | (16) | (17) | (17) | (16) | (20) | (19) | (19) | (19) | (33) | (38) | (50) | (57) | (66) | (77) | (44) | |
| Other expense | 13 | 110 | 0 | 0 | 110 | 0 | 123 | 0 | ||||||||
| Other expense | 13 | 110 | 0 | 0 | 110 | 0 | 123 | 0 | ||||||||
| Income before income taxes | (29) | (127) | (17) | (16) | (20) | (19) | (19) | (19) | (33) | (38) | (160) | (57) | (189) | (77) | (44) | |
| Income tax expense | (7) | (30) | (5) | (3) | (6) | (4) | (4) | (4) | (8) | (9) | (38) | (13) | (45) | (19) | (10) | |
| Net income | (22) | (97) | (12) | (13) | (14) | (15) | (15) | (15) | (25) | (29) | (122) | (44) | (144) | (58) | (34) | |
| Net income (loss) available to common stockholders, basic | $ (22) | $ (97) | $ (12) | $ (13) | $ (14) | $ (15) | $ (15) | $ (15) | $ (25) | $ (29) | $ (122) | $ (44) | $ (144) | $ (58) | $ (34) | |
| Basic earnings per common share | $ (0.09) | $ (0.38) | $ (0.05) | $ (0.05) | $ (0.05) | $ (0.06) | $ (0.05) | $ (0.05) | $ (0.09) | $ (0.10) | $ (0.47) | $ (0.15) | $ (0.56) | $ (0.20) | $ (0.11) | |
| Diluted earnings per common share | $ (0.09) | $ (0.38) | $ (0.05) | $ (0.05) | $ (0.06) | $ (0.05) | $ (0.06) | $ (0.06) | $ (0.10) | $ (0.10) | $ (0.47) | $ (0.15) | $ (0.56) | $ (0.21) | $ (0.11) | |
| Deferred income taxes | $ (4) | $ (4) | $ (8) | $ (9) | $ (38) | $ (14) | $ (45) | $ (19) | $ (10) | |||||||
| Increase in accrued expenses and other liabilities | 17 | 19 | 33 | 38 | 160 | 58 | 189 | 77 | 44 | |||||||
| Net cash provided by operating activities | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||
| Comprehensive income | $ (22) | $ (97) | $ (12) | $ (13) | $ (14) | $ (15) | $ (15) | $ (15) | $ (25) | $ (29) | $ (122) | $ (44) | (144) | (58) | (34) | |
| Revision of Prior Period, Error Correction, Adjustment | Parent Company [Member] | ||||||||||||||||
| Quarterly Error Corrections and Prior Period Adjustments Restatement [Line Items] | ||||||||||||||||
| Total assets | (593) | (449) | (593) | (449) | ||||||||||||
| Stockholders’ equity | (593) | (449) | (593) | (449) | ||||||||||||
| Total liabilities and stockholders’ equity | (593) | (449) | (593) | (449) | ||||||||||||
| Net income | (144) | (58) | (34) | |||||||||||||
| Net cash provided by operating activities | 0 | 0 | 0 | |||||||||||||
| Investment in Bank Subsidiary | (451) | (406) | (451) | (406) | ||||||||||||
| Investments in non-bank subsidiaries | (142) | (43) | (142) | (43) | ||||||||||||
| Equity in undistributed net income of subsidiaries | (144) | (58) | (34) | |||||||||||||
| Equity in undistributed net income of subsidiaries | 144 | 58 | 34 | |||||||||||||
| Comprehensive income | (144) | (58) | (34) | |||||||||||||
| Revision of Prior Period, Error Correction, Adjustment | Retained Earnings [Member] | ||||||||||||||||
| Quarterly Error Corrections and Prior Period Adjustments Restatement [Line Items] | ||||||||||||||||
| Stockholders’ equity | $ (593) | $ (449) | (593) | (449) | (391) | $ (357) | ||||||||||
| Net income | $ (144) | $ (58) | $ (34) | |||||||||||||