Earnings Per Common Share, Calculation of Earnings and Diluted Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Common Share [Abstract]
Wells Fargo net income	$ 5,719	$ 5,726	$ 11,523	$ 11,619
Less: Preferred stock dividends and other	356	302	699	588
Wells Fargo net income applicable to common stock	$ 5,363	$ 5,424	$ 10,824	$ 11,031
Earnings per common share
Average common shares outstanding (denominator)	5,151.9	5,268.4	5,156.1	5,265.6
Per share	$ 1.04	$ 1.02	$ 2.10	$ 2.09
Diluted earnings per common share
Average common shares outstanding (in shares)	5,151.9	5,268.4	5,156.1	5,265.6
Diluted average common shares outstanding (denominator)	5,220.5	5,350.8	5,233.2	5,353.2
Per share	$ 1.03	$ 1.01	$ 2.07	$ 2.06
Stock Option [Member]
Diluted earnings per common share
Weighted average number of diluted shares outstanding, adjustment (in shares)	27.3	33.4	28.1	33.7
Restricted Share Rights [Member]
Diluted earnings per common share
Weighted average number of diluted shares outstanding, adjustment (in shares)	26.8	36.4	34.6	42.3
Warrants [Member]
Diluted earnings per common share
Weighted average number of diluted shares outstanding, adjustment (in shares)	14.5	12.6	14.4	11.6