Guarantees, Pledged Assets and Collateral, and other Commitments Guarantees, Pledged Assets and Collateral, Other Commitments Guarantees, and Other Commitments (Details) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2019	Dec. 31, 2018
Other Commitments [Line Items]
Resale Agreements, Funded Amounts Outstanding		$ 0	$ 0
Resale Agreements, Unfunded Commitments		$ 5,100	9,800
Description of Guarantees Given by Registrant		The Parent fully and unconditionally guarantees the payment of principal, interest, and any other amounts that may be due on securities that its 100% owned finance subsidiary, Wells Fargo Finance LLC, may issue.
Liabilities	[1]	$ 1,723,351	1,698,817
Other commitments and guarantees [Member] | Wells Fargo Finance, LLC [Member]
Other Commitments [Line Items]
Liabilities		545	5
Purchase Commitment [Member] | Debt securities [Member]
Other Commitments [Line Items]
Other Commitment		212	335
Purchase Commitment [Member] | Equity securities [Member]
Other Commitments [Line Items]
Other Commitment		$ 2,100	$ 2,500

[1] (3) Our consolidated liabilities at June 30, 2019, and December 31, 2018, include the following VIE liabilities for which the VIE creditors do not have recourse to Wells Fargo: Derivative liabilities, $1 million and $0 million; Accrued expenses and other liabilities, $201 million and $191 million; Long-term debt, $748 million and $816 million; and Total liabilities, $950 million and $1.0 billion, respectively.