Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Derivatives Designated as Cash Flow and Net Investment Hedges (Details)

v3.10.0.1
Derivatives - Derivatives Designated as Cash Flow and Net Investment Hedges (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Cash flow hedges        
Cash flow hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives $ (71)   $ (495)  
Gains (Losses) in Income Reclassified from Accumulated OCI (33)   (56)  
Cash Flow and Net Investment Hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives   $ 70   $ 61
Gains (Losses) in Income Reclassified from Accumulated OCI   (79)   (149)
Interest rate risk on variable-rate assets | Cash flow hedges        
Cash flow hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives (71)   (499)  
Gains (Losses) in Income Reclassified from Accumulated OCI (33)   (83)  
Cash Flow and Net Investment Hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives   64   27
Gains (Losses) in Income Reclassified from Accumulated OCI   (108)   (220)
Price risk on restricted stock awards | Cash flow hedges        
Cash flow hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives 0   4  
Gains (Losses) in Income Reclassified from Accumulated OCI 0   27  
Cash Flow and Net Investment Hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives   6   34
Gains (Losses) in Income Reclassified from Accumulated OCI   29   71
Foreign exchange risk | Net investment hedges        
Net investment hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives 923   679  
Gains (Losses) in Income Reclassified from Accumulated OCI 0   (1)  
Cash Flow and Net Investment Hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives   (464)   (1,114)
Gains (Losses) in Income Reclassified from Accumulated OCI   1,928   1,798
Amounts excluded from effectiveness testing and recognized in other income $ 24 $ (33) $ 29 $ (48)