Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets - Schedule of Goodwill (Details)

v3.10.0.1
Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Goodwill [Line Items]    
Total goodwill $ 68,951 $ 68,951
Operating Segments | Consumer Banking    
Goodwill [Line Items]    
Total goodwill 30,123 30,123
Operating Segments | Global Wealth & Investment Management    
Goodwill [Line Items]    
Total goodwill 9,677 9,677
Operating Segments | Global Banking    
Goodwill [Line Items]    
Total goodwill 23,923 23,923
Operating Segments | Global Markets    
Goodwill [Line Items]    
Total goodwill 5,182 5,182
All Other    
Goodwill [Line Items]    
Total goodwill 46 46
Deposits | Operating Segments | Consumer Banking    
Goodwill [Line Items]    
Total goodwill 18,414 18,414
Consumer Lending | Operating Segments | Consumer Banking    
Goodwill [Line Items]    
Total goodwill 11,709 11,709
U.S. Trust | Operating Segments | Global Wealth & Investment Management    
Goodwill [Line Items]    
Total goodwill 2,917 2,917
Merrill Lynch Global Wealth Management | Operating Segments | Global Wealth & Investment Management    
Goodwill [Line Items]    
Total goodwill 6,760 6,760
Global Commercial Banking | Operating Segments | Global Banking    
Goodwill [Line Items]    
Total goodwill 16,146 16,146
Global Corporate and Investment Banking | Operating Segments | Global Banking    
Goodwill [Line Items]    
Total goodwill 6,231 6,231
Business Banking | Operating Segments | Global Banking    
Goodwill [Line Items]    
Total goodwill $ 1,546 $ 1,546