Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Economic Hedges (Details)

v3.4.0.3
Derivatives - Economic Hedges (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Other    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) on derivatives not designated as hedging $ 26 $ 13
Interest rate lock commitments    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) on derivatives not designated as hedging 151 260
Mortgage banking income | Interest rate risk on mortgage banking income    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) on derivatives not designated as hedging 546 296
Other income | Credit risk on loans    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) on derivatives not designated as hedging (65) (27)
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 (884) (319)
Personnel expense | Price risk on restricted stock awards    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) on derivatives not designated as hedging $ (741) $ (470)