Consolidated Statement of Changes in Equity (Unaudited) - USD ($) $ in Millions		Total	Total Wells Fargo stockholders' equity [Member]	Preferred stock [Member]	Common stock [Member]	Additional paid-in capital [Member]	Retained earnings [Member]	Cumulative other comprehensive income [Member]	Treasury stock [Member]	Unearned ESOP Shares [Member]	Noncontrolling interests [Member]
Stockholders' Equity Period Increase (Decrease)
Cumulative effect of new accounting principle | Accounting Standards Update (ASU) 2016-01; ASU 2016-04; ASU 2016-16 and ASU 2014-09 [Member]	[1]	$ (24)	$ (24)				$ 94	$ (118)
Beginning balance, adjusted balance		208,055	206,912	$ 25,358	$ 9,136	$ 60,893	145,357	(2,262)	$ (29,892)	$ (1,678)	$ 1,143
Beginning balance, shares at Dec. 31, 2017				11,677,235	4,891,616,628
Balance, beginning of period at Dec. 31, 2017		208,079	206,936	$ 25,358	$ 9,136	60,893	145,263	(2,144)	(29,892)	(1,678)	1,143
Stockholders' Equity Period Increase (Decrease)
Net income		10,322	10,322				10,322
Net income attributable to noncontrolling interests		(314)									314
Net income		10,636
Other comprehensive income (loss) attributable to parent, net of tax		(3,199)	(3,199)					(3,199)
Other comprehensive income (loss) attributable to noncontrolling interest, net of tax		1									(1)
Other comprehensive income (loss), net of tax		(3,200)						(3,200)
Noncontrolling interests, adjustments to Additional Paid in Capital			7			7
Noncontrolling interests											(575)
Total change in noncontrolling interests		(568)
Common stock issued		1,281	1,281			5	(231)		1,507
Common stock, shares issued					30,259,788
Common stock repurchased	[2]	(5,952)	(5,952)			(1,000)			(4,952)
Common stock repurchased, shares	[2]				(86,339,185)
Preferred stock issued to ESOP		0	0	$ 1,100		43				(1,143)
Preferred stock issued to ESOP, shares				1,100,000
Preferred stock released by ESOP		721	721			(49)				770
Preferred stock converted to common shares		0	0	$ (721)		27			694
Preferred stock converted to common shares, shares				(721,251)	13,530,623
Common stock warrant repurchased/exercised		(158)	(158)			(158)
Preferred stock issued		0	0	$ 0		0
Preferred stock, shares issued				0
Common stock dividends		(3,811)	(3,811)			30	(3,841)
Preferred stock dividends		(804)	(804)				(804)
Stock incentive compensation expense		695	695			695
Net change in deferred compensation and related plans		(826)	(826)			(849)			23
Net change		(1,986)	(1,724)	$ 379	$ 0	(1,249)	5,446	(3,199)	(2,728)	(373)	(262)
Net change, shares				378,749	(42,548,774)
Balance, end of period at Jun. 30, 2018		206,069	205,188	$ 25,737	$ 9,136	59,644	150,803	(5,461)	(32,620)	(2,051)	881
Ending balance, shares at Jun. 30, 2018				12,055,984	4,849,067,854
Beginning balance, shares at Mar. 31, 2018				12,546,235	4,873,882,481
Balance, beginning of period at Mar. 31, 2018		205,910	204,952	$ 26,227	$ 9,136	60,399	147,928	(4,921)	(31,246)	(2,571)	958
Stockholders' Equity Period Increase (Decrease)
Net income		5,186	5,186				5,186
Net income attributable to noncontrolling interests		(123)									123
Net income		5,309
Other comprehensive income (loss) attributable to parent, net of tax		(540)	(540)					(540)
Other comprehensive income (loss) attributable to noncontrolling interest, net of tax		1									(1)
Other comprehensive income (loss), net of tax		(541)						(541)
Noncontrolling interests, adjustments to Additional Paid in Capital			0			0
Noncontrolling interests											(199)
Total change in noncontrolling interests		(199)
Common stock issued		73	73			(20)	0		93
Common stock, shares issued					1,834,029
Common stock repurchased	[3]	(2,923)	(2,923)			(1,000)			(1,923)
Common stock repurchased, shares	[3]				(35,771,728)
Preferred stock issued to ESOP		0	0	$ 0		0				0
Preferred stock issued to ESOP, shares				0
Preferred stock released by ESOP		490	490			(30)				520
Preferred stock converted to common shares		0	0	$ (490)		22			468
Preferred stock converted to common shares, shares				(490,251)	9,123,072
Common stock warrant repurchased/exercised		(1)	(1)			(1)
Preferred stock issued		0	0	$ 0		0
Preferred stock, shares issued				0
Common stock dividends		(1,900)	(1,900)			17	(1,917)
Preferred stock dividends		(394)	(394)				(394)
Stock incentive compensation expense		258	258			258
Net change in deferred compensation and related plans		(13)	(13)			(1)			(12)
Net change		159	236	$ (490)	$ 0	(755)	2,875	(540)	(1,374)	520	(77)
Net change, shares				(490,251)	(24,814,627)
Balance, end of period at Jun. 30, 2018		206,069	205,188	$ 25,737	$ 9,136	59,644	150,803	(5,461)	(32,620)	(2,051)	881
Ending balance, shares at Jun. 30, 2018				12,055,984	4,849,067,854
Stockholders' Equity Period Increase (Decrease)
Cumulative effect of new accounting principle | Accounting Standards Update 2016-02 and Accounting Standards Update 2017-08 [Member]	[4]	(11)	(11)				(492)	481
Beginning balance, adjusted balance		197,055	196,155	$ 23,214	$ 9,136	60,685	157,671	(5,855)	(47,194)	(1,502)	900
Beginning balance, shares at Dec. 31, 2018				9,377,216	4,581,253,608
Balance, beginning of period at Dec. 31, 2018		197,066	196,166	$ 23,214	$ 9,136	60,685	158,163	(6,336)	(47,194)	(1,502)	900
Stockholders' Equity Period Increase (Decrease)
Net income		12,066	12,066				12,066
Net income attributable to noncontrolling interests		(239)									239
Net income		12,305
Other comprehensive income (loss) attributable to parent, net of tax		3,631	3,631					3,631
Other comprehensive income (loss) attributable to noncontrolling interest, net of tax		0									0
Other comprehensive income (loss), net of tax		3,631						3,631
Noncontrolling interests, adjustments to Additional Paid in Capital			0			0
Noncontrolling interests											(144)
Total change in noncontrolling interests		(144)
Common stock issued		1,538	1,538			(2)	(367)		1,907
Common stock, shares issued					36,549,824
Common stock repurchased		(9,718)	(9,718)			0			(9,718)
Common stock repurchased, shares					(202,216,454)
Preferred stock issued to ESOP		0	0	$ 0		0				0
Preferred stock issued to ESOP, shares				0
Preferred stock released by ESOP		193	193			(17)				210
Preferred stock converted to common shares		0	0	$ (193)		(15)			208
Preferred stock converted to common shares, shares				(193,047)	4,004,219
Common stock warrant repurchased/exercised		0	0			0
Preferred stock issued		0	0	$ 0		0
Preferred stock, shares issued				0
Common stock dividends		(4,069)	(4,069)			39	(4,108)
Preferred stock dividends		(711)	(711)				(711)
Stock incentive compensation expense		791	791			791
Net change in deferred compensation and related plans		(834)	(834)			(856)			22
Net change		2,982	2,887	$ (193)	$ 0	(60)	6,880	3,631	(7,581)	210	95
Net change, shares				(193,047)	(161,662,411)
Balance, end of period at Jun. 30, 2019		200,037	199,042	$ 23,021	$ 9,136	60,625	164,551	(2,224)	(54,775)	(1,292)	995
Ending balance, shares at Jun. 30, 2019				9,184,169	4,419,591,197
Beginning balance, shares at Mar. 31, 2019				9,377,211	4,511,947,830
Balance, beginning of period at Mar. 31, 2019		198,733	197,832	$ 23,214	$ 9,136	60,409	160,776	(3,682)	(50,519)	(1,502)	901
Stockholders' Equity Period Increase (Decrease)
Net income		6,206	6,206				6,206
Net income attributable to noncontrolling interests		(132)									132
Net income		6,338
Other comprehensive income (loss) attributable to parent, net of tax		1,458	1,458					1,458
Other comprehensive income (loss) attributable to noncontrolling interest, net of tax		0									0
Other comprehensive income (loss), net of tax		1,458						1,458
Noncontrolling interests, adjustments to Additional Paid in Capital			0			0
Noncontrolling interests											(38)
Total change in noncontrolling interests		(38)
Common stock issued		399	399			(2)	(38)		439
Common stock, shares issued					8,491,923
Common stock repurchased		(4,898)	(4,898)			0			(4,898)
Common stock repurchased, shares					(104,852,744)
Preferred stock issued to ESOP		0	0	$ 0		0				0
Preferred stock issued to ESOP, shares				0
Preferred stock released by ESOP		193	193			(17)				210
Preferred stock converted to common shares		0	0	$ (193)		(15)			208
Preferred stock converted to common shares, shares				(193,042)	4,004,188
Common stock warrant repurchased/exercised		0	0			0
Preferred stock issued		0	0	$ 0		0
Preferred stock, shares issued				0
Common stock dividends		(2,015)	(2,015)			20	(2,035)
Preferred stock dividends		(358)	(358)				(358)
Stock incentive compensation expense		247	247			247
Net change in deferred compensation and related plans		(22)	(22)			(17)			(5)
Net change		1,304	1,210	$ (193)	$ 0	216	3,775	1,458	(4,256)	210	94
Net change, shares				(193,042)	(92,356,633)
Balance, end of period at Jun. 30, 2019		$ 200,037	$ 199,042	$ 23,021	$ 9,136	$ 60,625	$ 164,551	$ (2,224)	$ (54,775)	$ (1,292)	$ 995
Ending balance, shares at Jun. 30, 2019				9,184,169	4,419,591,197

[1] Effective January 1, 2018, we adopted ASU 2016-04 – Liabilities – Extinguishments of Liabilities (Subtopic 405-20): Recognition of Breakage for Certain Prepaid Stored-Value Products, ASU 2016-01 – Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, and ASU 2014-09 – Revenue from Contracts With Customers (Topic 606) and subsequent related Updates. See Note 1 (Summary of Significant Accounting Policies) for more information.

[2] (3) For the quarter ended June 30, 2018, additional paid-in capital was reduced by $1.0 billion for the upfront payment related to a private forward repurchase transaction that settled in third quarter 2018 and reduced our third quarter 2018 shares of common stock by 18.8 million shares upon settlement.

[3] (1) For the quarter ended June 30, 2018, additional paid-in capital was reduced by $1.0 billion for the upfront payment related to a private forward repurchase transaction that settled in third quarter 2018 and reduced our third quarter 2018 shares of common stock by 18.8 million shares upon settlement.

[4] Effective January 1, 2019, we adopted ASU 2016-02 – Leases (Topic 842) and subsequent related Updates, ASU 2017-08 – Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. See Note 1 (Summary of Significant Accounting Policies) for more information.