Quarterly report pursuant to Section 13 or 15(d)

Business Segment Information - Results of Business Segments and All Other (Details)

v3.21.1
Business Segment Information - Results of Business Segments and All Other (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Segment Reporting Information [Line Items]      
Net interest income $ 10,308 $ 12,274  
Noninterest income 12,624 10,637  
Total revenue, net of interest expense 22,932 22,911  
Provision for credit losses (1,860) 4,761  
Noninterest expense 15,515 13,475  
Income before income taxes 9,277 4,675  
Income tax expense 1,227 665  
Net income 8,050 4,010  
Period-end total assets 2,969,992 2,619,954 $ 2,819,627
Operating Segments      
Segment Reporting Information [Line Items]      
Total revenue, net of interest expense 23,871 23,891  
Net income 7,793 4,497  
Period-end total assets 2,765,984 2,378,857  
Operating Segments | Consumer Banking      
Segment Reporting Information [Line Items]      
Net interest income 5,920 6,862  
Noninterest income 2,149 2,267  
Total revenue, net of interest expense 8,069 9,129  
Provision for credit losses (617) 2,258  
Noninterest expense 5,131 4,496  
Income before income taxes 3,555 2,375  
Income tax expense 871 582  
Net income 2,684 1,793  
Period-end total assets 1,047,413 837,522  
Operating Segments | Global Wealth & Investment Management      
Segment Reporting Information [Line Items]      
Net interest income 1,331 1,571  
Noninterest income 3,640 3,365  
Total revenue, net of interest expense 4,971 4,936  
Provision for credit losses (65) 189  
Noninterest expense 3,869 3,606  
Income before income taxes 1,167 1,141  
Income tax expense 286 280  
Net income 881 861  
Period-end total assets 378,655 323,867  
Operating Segments | Global Banking      
Segment Reporting Information [Line Items]      
Net interest income 1,980 2,612  
Noninterest income 2,653 1,988  
Total revenue, net of interest expense 4,633 4,600  
Provision for credit losses (1,126) 2,093  
Noninterest expense 2,781 2,318  
Income before income taxes 2,978 189  
Income tax expense 804 51  
Net income 2,174 138  
Period-end total assets 594,235 562,529  
Operating Segments | Global Markets      
Segment Reporting Information [Line Items]      
Net interest income 990 1,153  
Noninterest income 5,208 4,073  
Total revenue, net of interest expense 6,198 5,226  
Provision for credit losses (5) 107  
Noninterest expense 3,427 2,815  
Income before income taxes 2,776 2,304  
Income tax expense 722 599  
Net income 2,054 1,705  
Period-end total assets 745,681 654,939  
All Other      
Segment Reporting Information [Line Items]      
Net interest income 87 76  
Noninterest income (1,026) (1,056)  
Total revenue, net of interest expense (939) (980)  
Provision for credit losses (47) 114  
Noninterest expense 307 240  
Income before income taxes (1,199) (1,334)  
Income tax expense (1,456) (847)  
Net income 257 (487)  
Period-end total assets $ 204,008 $ 241,097