Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Economic Hedges (Details)

v3.5.0.2
Derivatives - Economic Hedges (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Other        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) on derivatives not designated as hedging $ 14 $ (20) $ 40 $ (7)
Interest rate lock commitments        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) on derivatives not designated as hedging 177 167 329 427
Mortgage banking income | Interest rate risk on mortgage banking income        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) on derivatives not designated as hedging 279 (390) 825 (94)
Other income | Credit risk on loans        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) on derivatives not designated as hedging (31) (31) (96) (58)
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 (824) 585 (1,708) 266
Personnel expense | Price risk on restricted stock awards        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (loss) on derivatives not designated as hedging $ (27) $ 226 $ (768) $ (244)