Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Business Segment Information - Results of Business Segments and All Other (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Segment Reporting Information [Line Items]      
Net interest income (FTE basis) $ 11,758 $ 11,255  
Noninterest income 11,517 11,190  
Total revenue, net of interest expense (FTE basis) 23,275 22,445  
Provision for credit losses 834 835  
Noninterest expense 13,897 14,093  
Income before income taxes (FTE basis) 8,544 7,517  
Income tax expense (FTE basis) 1,626 2,180  
Net income 6,918 5,337  
Year-end total assets 2,328,478 2,247,794 $ 2,281,234
Operating Segments      
Segment Reporting Information [Line Items]      
Total revenue, net of interest expense (FTE basis) 23,608 22,539  
Net income 7,204 5,691  
Year-end total assets 2,126,326 2,046,041  
Operating Segments | Consumer Banking      
Segment Reporting Information [Line Items]      
Net interest income (FTE basis) 6,510 5,781  
Noninterest income 2,522 2,503  
Total revenue, net of interest expense (FTE basis) 9,032 8,284  
Provision for credit losses 935 838  
Noninterest expense 4,480 4,410  
Income before income taxes (FTE basis) 3,617 3,036  
Income tax expense (FTE basis) 922 1,144  
Net income 2,695 1,892  
Year-end total assets 774,256 734,087  
Operating Segments | Global Wealth & Investment Management      
Segment Reporting Information [Line Items]      
Net interest income (FTE basis) 1,594 1,560  
Noninterest income 3,262 3,032  
Total revenue, net of interest expense (FTE basis) 4,856 4,592  
Provision for credit losses 38 23  
Noninterest expense 3,428 3,329  
Income before income taxes (FTE basis) 1,390 1,240  
Income tax expense (FTE basis) 355 467  
Net income 1,035 773  
Year-end total assets 279,331 291,177  
Operating Segments | Global Banking      
Segment Reporting Information [Line Items]      
Net interest income (FTE basis) 2,640 2,602  
Noninterest income 2,294 2,353  
Total revenue, net of interest expense (FTE basis) 4,934 4,955  
Provision for credit losses 16 17  
Noninterest expense 2,195 2,163  
Income before income taxes (FTE basis) 2,723 2,775  
Income tax expense (FTE basis) 707 1,046  
Net income 2,016 1,729  
Year-end total assets 424,134 416,763  
Operating Segments | Global Markets      
Segment Reporting Information [Line Items]      
Net interest income (FTE basis) 870 1,049  
Noninterest income 3,916 3,659  
Total revenue, net of interest expense (FTE basis) 4,786 4,708  
Provision for credit losses (3) (17)  
Noninterest expense 2,818 2,757  
Income before income taxes (FTE basis) 1,971 1,968  
Income tax expense (FTE basis) 513 671  
Net income 1,458 1,297  
Year-end total assets 648,605 604,014  
All Other      
Segment Reporting Information [Line Items]      
Net interest income (FTE basis) 144 263  
Noninterest income (477) (357)  
Total revenue, net of interest expense (FTE basis) (333) (94)  
Provision for credit losses (152) (26)  
Noninterest expense 976 1,434  
Income before income taxes (FTE basis) (1,157) (1,502)  
Income tax expense (FTE basis) (871) (1,148)  
Net income (286) (354)  
Year-end total assets $ 202,152 $ 201,753