Regulatory Capital Requirements and Other Restrictions, Regulatory Capital Information (Details) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Wells Fargo & Company [Member]
Regulatory leverage:
Total leverage exposure	$ 2,236,647	$ 2,316,079
Supplementary leverage ratio (SLR)	0.0665	0.0689
Tier 1 leverage ratio	0.0803	0.0834
Required minimum leverage
Supplementary leverage ratio	0.0500	0.0500
Tier 1 leverage ratio	0.0400	0.0400
Wells Fargo & Company [Member] | Standardized Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	$ 129,758	$ 140,643
Tier 1	148,810	159,671
Total	182,690	196,308
Assets:
Risk-weighted assets	1,255,641	1,239,026
Adjusted average assets	$ 1,852,392	$ 1,915,585
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1033	0.1135
Tier 1 capital	0.1185	0.1289
Total capital	0.1455	0.1584
Required minimum capital ratios:
Common Equity Tier 1 Capital	0.0910	0.0960
Tier 1 capital	0.1060	0.1110
Total capital	0.1260	0.1310
Wells Fargo & Company [Member] | Advanced Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	$ 129,758	$ 140,643
Tier 1	148,810	159,671
Total	173,520	186,580
Assets:
Risk-weighted assets	1,104,116	1,116,068
Adjusted average assets	$ 1,852,392	$ 1,915,585
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1175	0.1260
Tier 1 capital	0.1348	0.1431
Total capital	0.1572	0.1672
Required minimum capital ratios:
Common Equity Tier 1 Capital	0.0850	0.0900
Tier 1 capital	0.1000	0.1050
Total capital	0.1200	0.1250
Wells Fargo Bank, NA [Member]
Regulatory leverage:
Total leverage exposure	$ 2,072,151	$ 2,133,798
Supplementary leverage ratio (SLR)	0.0664	0.0700
Tier 1 leverage ratio	0.0812	0.0849
Required minimum leverage
Supplementary leverage ratio	0.0600	0.0600
Tier 1 leverage ratio	0.0400	0.0400
Wells Fargo Bank, NA [Member] | Standardized Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	$ 137,609	$ 149,318
Tier 1	137,609	149,318
Total	160,488	173,044
Assets:
Risk-weighted assets	1,175,426	1,137,839
Adjusted average assets	$ 1,693,679	$ 1,758,479
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1171	0.1312
Tier 1 capital	0.1171	0.1312
Total capital	0.1365	0.1521
Required minimum capital ratios:
Common Equity Tier 1 Capital	0.0700	0.0700
Tier 1 capital	0.0850	0.0850
Total capital	0.1050	0.1050
Wells Fargo Bank, NA [Member] | Advanced Approach Under Basel III [Member]
Regulatory capital:
Common Equity Tier 1	$ 137,609	$ 149,318
Tier 1	137,609	149,318
Total	151,250	163,213
Assets:
Risk-weighted assets	971,152	965,511
Adjusted average assets	$ 1,693,679	$ 1,758,479
Regulatory capital ratios:
Common Equity Tier 1 capital	0.1417	0.1547
Tier 1 capital	0.1417	0.1547
Total capital	0.1557	0.1690
Required minimum capital ratios:
Common Equity Tier 1 Capital	0.0700	0.0700
Tier 1 capital	0.0850	0.0850
Total capital	0.1050	0.1050