Consolidated Statement of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Interest income
Debt securities	$ 3,472	$ 3,941
Mortgage loans held for sale	197	152
Loans held for sale	12	24
Loans	10,065	11,354
Equity securities	206	210
Other interest income	775	1,322
Total interest income	14,727	17,003
Interest expense
Deposits	1,742	2,026
Short-term borrowings	291	596
Long-term debt	1,240	1,927
Other interest expense	142	143
Total interest expense	3,415	4,692
Net interest income	11,312	12,311
Provision for credit losses, debt securities	172	0	[1]
Provision for credit losses, loans	3,833	845
Net interest income after provision for credit losses	7,307	11,466
Noninterest income
Mortgage banking	379	708
Insurance	95	96
Net gains from trading activities	64	357
Net gains on debt securities	237	125
Net gains (losses) from equity securities	(1,401)	814
Lease income	352	443
Other	372	574
Total noninterest income	6,405	9,298
Noninterest expense
Salaries	4,721	4,425
Commission and incentive compensation	2,463	2,845
Employee benefits	1,130	1,938
Technology and equipment	661	661
Net occupancy	715	717
Core deposit and other intangibles	23	28
FDIC and other deposit assessments	118	159
Other	3,217	3,143
Total noninterest expense	13,048	13,916
Income before income tax expense	664	6,848
Income tax expense	159	881
Net income before noncontrolling interests	505	5,967
Less: Net income (loss) from noncontrolling interests	(148)	107
Wells Fargo net income	653	5,860
Less: Preferred stock dividends and other	611	353
Wells Fargo net income applicable to common stock	$ 42	$ 5,507
Per share information
Earnings per common share (in dollars per share)	$ 0.01	$ 1.21
Diluted earnings per common share (in dollars per share)	$ 0.01	$ 1.20
Average common shares outstanding (in shares)	4,104.8	4,551.5
Diluted average common shares outstanding (in shares)	4,135.3	4,584.0
Service charges on deposit accounts [Member]
Noninterest income
Fee income	$ 1,209	$ 1,094
Trust and investment fees [Member]
Noninterest income
Fee income	3,574	3,373
Card fees [Member]
Noninterest income
Fee income	892	944
Other fees [Member]
Noninterest income
Fee income	$ 632	$ 770

[1]
(1) Prior to our adoption of Accounting Standards Update (ASU) 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (CECL), on January 1, 2020, provision for credit losses from debt securities was not applicable and is therefore presented as $0 for the prior period. For more information, see Note 1 (Summary of Significant Accounting Policies) to Financial Statements in this Report.