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 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Cash flow hedges        
Cash flow hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives $ (54)   $ (549)  
Gains (Losses) in Income Reclassified from Accumulated OCI (51)   (107)  
Cash Flow and Net Investment Hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives   $ 18   $ 79
Gains (Losses) in Income Reclassified from Accumulated OCI   (22)   (171)
Interest rate risk on variable-rate assets | Cash flow hedges        
Cash flow hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives (54)   (553)  
Gains (Losses) in Income Reclassified from Accumulated OCI (51)   (134)  
Cash Flow and Net Investment Hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives   11   38
Gains (Losses) in Income Reclassified from Accumulated OCI   (54)   (274)
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   7   41
Gains (Losses) in Income Reclassified from Accumulated OCI   32   103
Foreign exchange risk | Net investment hedges        
Net investment hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives 181   860  
Gains (Losses) in Income Reclassified from Accumulated OCI 383   382  
Cash Flow and Net Investment Hedges        
Gains (Losses) Recognized in Accumulated OCI on Derivatives   (427)   (1,541)
Gains (Losses) in Income Reclassified from Accumulated OCI   (3)   1,811
Amounts excluded from effectiveness testing and recognized in other income $ 3 $ (33) $ 32 $ (82)