Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Wells Fargo net income	$ 5,810	$ 5,558	$ 11,267	$ 11,020
Investment securities:
Net unrealized gains arising during the period	1,565	1,571	1,934	2,366
Reclassification of net gains to net income	(177)	(504)	(322)	(808)
Derivatives and hedging activities:
Net unrealized gains arising during the period	376	1,057	243	3,056
Reclassification of net gains on cash flow hedges to net income	(153)	(265)	(355)	(521)
Defined benefit plans adjustments:
Net actuarial and prior service losses arising during the period	0	(19)	(7)	(27)
Amortization of net actuarial loss, settlements and other to net income	41	39	79	76
Foreign currency translation adjustments:
Net unrealized gains (losses) arising during the period	31	(6)	47	37
Other comprehensive income , before tax	1,683	1,873	1,619	4,179
Income tax expense related to other comprehensive income	(624)	(714)	(587)	(1,571)
Other comprehensive income, net of tax	1,059	1,159	1,032	2,608
Less: Other comprehensive income (loss) from noncontrolling interests	(9)	(15)	5	(43)
Wells Fargo other comprehensive income, net of tax	1,068	1,174	1,027	2,651
Wells Fargo comprehensive income	6,878	6,732	12,294	13,671
Comprehensive income from noncontrolling interests	29	0	134	24
Total comprehensive income	$ 6,907	$ 6,732	$ 12,428	$ 13,695