Earnings Per Common Share, Earnings Per Common Share Calculations (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Common Share [Abstract]
Wells Fargo net income (loss)	$ 3,671	$ 4,636
Less: Preferred stock dividends and other	278	380
Wells Fargo net income (loss) applicable to common stock (numerator)	$ 3,393	$ 4,256
Earnings per common share
Average common shares outstanding (denominator) (in shares)	3,831.1	4,141.3
Per share (in dollars per share)	$ 0.89	$ 1.03
Diluted earnings per common share
Average common shares outstanding (in shares)	3,831.1	4,141.3
Diluted average common shares outstanding (denominator) (in shares)	3,868.9	4,171.0
Per share (in dollars per share)	$ 0.88	$ 1.02
Preferred stock, accretion of redemption discount or issuance costs		$ 44
Restricted share rights [Member]
Diluted earnings per common share
Diluted average common shares outstanding, adjustment (in shares)	37.8	29.7