v3.26.1
Other Comprehensive Income, Summary of OCI (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Debt securities:        
Net unrealized gains (losses) arising during the period, Before tax $ 213 $ 112 $ (1,068) $ 2,368
Net unrealized gains (losses) arising during the period, Tax effect (53) (28) 264 (584)
Net unrealized gains (losses) arising during the period, Net of tax 160 84 (804) 1,784
Reclassification of net (gains) losses to net income, Before tax 114 129 222 100
Reclassification of net (gains) losses to net income, Tax effect (28) (32) (55) (25)
Reclassification of net (gains) losses to net income, Net of tax 86 97 167 75
Net change, Before tax 327 241 (846) 2,468
Net change, Tax effect (81) (60) 209 (609)
Net change, Net of tax 246 181 (637) 1,859
Cash Flow Hedges:        
Net change, Before tax (675) 448 (1,140) 1,041
Net change, Tax effect 167 (110) 282 (257)
Net change, Net of tax (508) 338 (858) 784
Defined benefit plans adjustments:        
Net actuarial and prior service gains (losses) arising during the period, Before tax 0 0 0 0
Net actuarial and prior service gains (losses) arising during the period, Tax effect 0 0 0 0
Net actuarial and prior service gains (losses) arising during the period, Net of tax 0 0 0 0
Reclassification of amounts to noninterest expense, Before tax 21 26 45 51
Reclassification of amounts to noninterest expense, Tax effect (5) (7) (10) (12)
Reclassification of amounts to noninterest expense, Net of tax 16 19 35 39
Net change, Before tax 21 26 45 51
Net change, Tax effect (5) (7) (10) (12)
Net change, Net of tax 16 19 35 39
Debit valuation adjustment (DVA):        
Net unrealized gains (losses) arising during period, Before tax (84) (32) (16) (21)
Net unrealized gains (losses) arising during period, Tax effect 21 8 4 5
Net unrealized gains (losses) arising during period, Net of tax (63) (24) (12) (16)
Reclassification of net (gains) losses to net income, Before tax 0 0 0 0
Reclassification of net (gains) losses to net income, Tax effect 0 0 0 0
Reclassification of net (gains) losses to net income, Net of tax 0 0 0 0
Net change, Before tax (84) (32) (16) (21)
Net change, Tax effect 21 8 4 5
Net change, net of tax (63) (24) (12) (16)
Foreign currency translation adjustments:        
Net unrealized gains (losses) arising during the period, Before tax (45) 119 (130) 146
Net unrealized gains (losses) arising during the period, Tax effect (1) (2) (2) (2)
Net unrealized gains (losses) arising during the period, Net of tax (46) 117 (132) 144
Reclassification of net (gains) losses to net income, Before tax 0 0 0 0
Reclassification of net (gains) losses to net income, Tax 0 0 0 0
Reclassification of net (gains) losses to net income, Net of Tax 0 0 0 0
Net change, Before tax (45) 119 (130) 146
Net change, Tax effect (1) (2) (2) (2)
Net change, Net of tax (46) 117 (132) 144
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]        
Other comprehensive income (loss), Before tax (456) 802 (2,087) 3,685
Other comprehensive income (loss), Tax effect 101 (171) 483 (875)
Other comprehensive income (loss), net of tax (355) 631 (1,604) 2,810
Noncontrolling interests [Member]        
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]        
Other comprehensive income (loss), net of tax 0 (1) 0 0
Total Wells Fargo stockholders' equity [Member]        
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]        
Other comprehensive income (loss), net of tax (355) 632 (1,604) 2,810
Fair value hedging [Member]        
Fair Value Hedges:        
Change in fair value of excluded components, Before tax 0 5 12 12
Change in fair value of excluded components, Tax 0 (1) (3) (3)
Change in fair value of excluded components, Net of tax 0 4 9 9
Cash flow hedging [Member]        
Cash Flow Hedges:        
Net unrealized gains (losses) arising during the period, Before Tax (743) 279 (1,300) 723
Net unrealized gains (losses) arising during the period, Tax 184 (69) 321 (179)
Net unrealized gains (losses) arising during the period, Net of Tax (559) 210 (979) 544
Reclassification of net (gains) losses to net income on cash flow hedges, Before tax 68 164 148 306
Reclassification of net (gains) losses to net income on cash flow hedges, Tax (17) (40) (36) (75)
Reclassification of net (gains) losses to net income on cash flow hedges, Net of tax $ 51 $ 124 $ 112 $ 231