Operating Segments (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($)		Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of reportable operating segments	4
Financial Information of Operating Segment [Abstract]
Net interest income	$ 9,221		$ 8,808
Noninterest Income	8,371		9,724
Total revenue	17,592		18,532
Provision for credit losses	(787)		(1,048)
Noninterest expense	13,870		13,989
Income before income tax expense	4,509		5,591
Income tax expense (benefit)	707		901
Net income before noncontrolling interests	3,802		4,690
Less: Net income from noncontrolling interests	131		54
Wells Fargo net income	3,671		4,636
Loans (average)	898,005		873,439
Assets (average)	1,919,392		1,934,425
Deposits (average)	1,464,072		1,393,472
Loans (period-end)	911,807		861,572	$ 895,394
Assets	1,939,709	[1]	1,957,264	1,948,068	[1]
Deposits (period-end)	1,481,354		1,437,119	$ 1,482,479
Corporate [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	(818)		(390)
Noninterest Income	806		1,417
Total revenue	(12)		1,027
Provision for credit losses	(20)		97
Noninterest expense	786		1,231
Income before income tax expense	(778)		(301)
Income tax expense (benefit)	(227)		(275)
Net income before noncontrolling interests	(551)		(26)
Less: Net income from noncontrolling interests	128		53
Wells Fargo net income	(679)		(79)
Loans (average)	9,292		10,228
Assets (average)	687,341		727,628
Deposits (average)	27,039		46,490
Loans (period-end)	9,101		10,516
Assets	682,912		753,899
Deposits (period-end)	23,715		42,487
Reconciling Items [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	(107)		(107)
Noninterest Income	(406)		(271)
Total revenue	(513)		(378)
Provision for credit losses	0		0
Noninterest expense	0		0
Income before income tax expense	(513)		(378)
Income tax expense (benefit)	(513)		(378)
Net income before noncontrolling interests	0		0
Less: Net income from noncontrolling interests	0		0
Wells Fargo net income	0		0
Loans (average)	0		0
Assets (average)	0		0
Deposits (average)	0		0
Loans (period-end)	0		0
Assets	0		0
Deposits (period-end)	0		0
Consumer Banking and Lending [Member] | Operating Segments [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	5,996		5,615
Noninterest Income	2,567		3,039
Total revenue	8,563		8,654
Provision for credit losses	(190)		(419)
Noninterest expense	6,395		6,267
Income before income tax expense	2,358		2,806
Income tax expense (benefit)	588		702
Net income before noncontrolling interests	1,770		2,104
Less: Net income from noncontrolling interests	0		0
Wells Fargo net income	1,770		2,104
Loans (average)	325,055		353,081
Assets (average)	374,869		408,553
Deposits (average)	881,339		789,439
Loans (period-end)	328,558		340,549
Assets	379,115		405,597
Deposits (period-end)	909,896		837,765
Consumer Banking and Lending [Member] | Operating Segments [Member] | Maximum [Member] | Customer concentration risk [Member] | Revenue benchmark [Member]
Segment Reporting Information [Line Items]
Revenue	10
Commercial Banking [Member] | Operating Segments [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	1,361		1,254
Noninterest Income	966		827
Total revenue	2,327		2,081
Provision for credit losses	(344)		(399)
Noninterest expense	1,531		1,630
Income before income tax expense	1,140		850
Income tax expense (benefit)	280		212
Net income before noncontrolling interests	860		638
Less: Net income from noncontrolling interests	3		1
Wells Fargo net income	857		637
Loans (average)	194,395		183,143
Assets (average)	214,937		199,361
Deposits (average)	200,699		189,364
Loans (period-end)	198,833		180,688
Assets	221,886		198,684
Deposits (period-end)	195,549		191,948
Corporate and Investment Banking [Member] | Operating Segments [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	1,990		1,779
Noninterest Income	1,480		1,825
Total revenue	3,470		3,604
Provision for credit losses	(196)		(284)
Noninterest expense	1,983		1,833
Income before income tax expense	1,683		2,055
Income tax expense (benefit)	425		500
Net income before noncontrolling interests	1,258		1,555
Less: Net income from noncontrolling interests	0		0
Wells Fargo net income	1,258		1,555
Loans (average)	284,498		246,148
Assets (average)	551,404		511,528
Deposits (average)	169,181		194,501
Loans (period-end)	290,627		248,644
Assets	564,976		512,045
Deposits (period-end)	168,467		188,920
Wealth and Investment Management [Member] | Operating Segments [Member]
Financial Information of Operating Segment [Abstract]
Net interest income	799		657
Noninterest Income	2,958		2,887
Total revenue	3,757		3,544
Provision for credit losses	(37)		(43)
Noninterest expense	3,175		3,028
Income before income tax expense	619		559
Income tax expense (benefit)	154		140
Net income before noncontrolling interests	465		419
Less: Net income from noncontrolling interests	0		0
Wells Fargo net income	465		419
Loans (average)	84,765		80,839
Assets (average)	90,841		87,355
Deposits (average)	185,814		173,678
Loans (period-end)	84,688		81,175
Assets	90,820		87,039
Deposits (period-end)	$ 183,727		$ 175,999

[1] Our consolidated assets at March 31, 2022 and December 31, 2021, included the following assets of certain variable interest entities (VIEs) that can only be used to settle the liabilities of those VIEs: Debt securities, $71 million and $71 million; Loans, $4.9 billion and $4.5 billion; All other assets, $229 million and $234 million; and Total assets, $5.2 billion and $4.8 billion, respectively.