Annual report pursuant to Section 13 and 15(d)

Derivatives - Economic Hedges (Details)

v3.3.1.900
Derivatives - Economic Hedges (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Other      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (loss) on derivatives not designated as hedging $ 11 $ (9) $ (19)
Interest rate lock commitments      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (loss) on derivatives not designated as hedging 714 776 927
Mortgage banking income | Interest rate risk on mortgage banking income      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (loss) on derivatives not designated as hedging 254 1,017 (619)
Other income | Credit risk on loans      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (loss) on derivatives not designated as hedging (22) 16 (47)
Other income | Interest rate and foreign currency risk on ALM activities      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (loss) on derivatives not designated as hedging (222) (3,683) 2,501
Personnel expense | Price risk on restricted stock awards      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain (loss) on derivatives not designated as hedging $ (267) $ 600 $ 865