v3.25.4
Employee Benefits, Defined Contribution Retirement Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 01, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Contribution Plan [Abstract]          
Defined contribution plan, tax status [Extensible Enumeration]   Qualified Plan [Member]      
Defined contribution plan, sponsor location [Extensible Enumeration]   Domestic plan [Member]      
Defined contribution plan, plan name [Extensible Enumeration]   Wells Fargo And Company 401(k) Plan [Member]      
Defined contribution retirement plan expense   $ 1,000 $ 1,000 $ 1,000  
Common stock [Member]          
Defined Contribution Plan [Abstract]          
ESOP, deferred shares, fair value         $ 427
Unreleased Shares [Member] | Common stock [Member]          
Defined Contribution Plan [Abstract]          
ESOP, number of unreleased shares outstanding         10,000,000
Wells Fargo And Company 401(k) Plan [Member] | United States [Member]          
Defined Contribution Plan [Abstract]          
Percentage of employee contribution   50.00%      
Base contribution, vesting percentage   100.00%      
Matching contribution, vesting after three years, vesting percentage   100.00%      
Base contribution, vesting period   3 years      
Matching contribution, vesting period   3 years      
Wells Fargo And Company 401(k) Plan [Member] | United States [Member] | Subsequent Event [Member]          
Defined Contribution Plan [Abstract]          
Percentage of employee contribution 75.00%        
Wells Fargo And Company 401(k) Plan [Member] | United States [Member] | Maximum [Member]          
Defined Contribution Plan [Abstract]          
Percentage of employer match (up to 6%)   6.00%      
Wells Fargo And Company 401(k) Plan [Member] | United States [Member] | Employees With Annual Compensation Of Less Than $75,000 [Member]          
Defined Contribution Plan [Abstract]          
Percentage of non-discretionary base contribution (up to 1%)   1.00%