Parent-Only Financial Statements, Statement of Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Parent-Only Statement of Comprehensive Income [Abstract]
Net income	$ 5,729	$ 5,578	$ 17,348	$ 16,268
Other comprehensive income (loss), net of tax [Abstract]
Investment securities	(1,095)	571	1,547	(3,714)
Derivatives and hedging activities	(101)	(52)	(79)	(151)
Defined benefit plans adjustment	(11)	(222)	(27)	(808)
Wells Fargo other comprehensive income (loss), net of tax	(999)	492	1,732	(3,361)
Total comprehensive income	$ 4,730	$ 6,070	$ 19,080	$ 12,907