Earnings and Dividends Per Common Share, Earnings Per Common Share Calculations (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Common Share [Abstract]
Wells Fargo net income (loss)	$ 3,528	$ 5,122	$ 10,318	$ 15,798
Less: Preferred stock dividends and other	278	335	836	1,012
Wells Fargo net income applicable to common stock	$ 3,250	$ 4,787	$ 9,482	$ 14,786
Earnings per common share
Average common shares outstanding (denominator) (in shares)	3,796.5	4,056.3	3,807.0	4,107.1
Per share (in dollars per share)	$ 0.86	$ 1.18	$ 2.49	$ 3.60
Diluted earnings per common share
Average common shares outstanding (in shares)	3,796.5	4,056.3	3,807.0	4,107.1
Diluted average common shares outstanding (denominator) (in shares)	3,825.1	4,090.4	3,838.5	4,140.0
Per share (in dollars per share)	$ 0.85	$ 1.17	$ 2.47	$ 3.57
Preferred stock, accretion of redemption discount or issuance costs		$ 38		$ 86
Restricted share rights [Member]
Diluted earnings per common share
Diluted average common shares outstanding, adjustment (in shares)	28.6	34.1	31.5	32.9