Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Schedule of Goodwill (Details)

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Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($)
$ in Millions
Mar. 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