Quarterly report pursuant to Section 13 or 15(d)

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

v3.4.0.3
Derivatives - Derivatives Designated as Accounting Hedges - Cash Flow and Net Investment Hedges (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Cash flow hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Gains (Losses) Recognized in Accumulated OCI on Derivatives $ (159) $ (186)
Gains (Losses) in Income Reclassified from Accumulated OCI (198) (256)
Hedge Ineffectiveness and Amounts Excluded from Effectiveness Testing 6 (1)
Interest rate risk on variable-rate portfolios | Cash flow hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Gains (Losses) Recognized in Accumulated OCI on Derivatives 39 24
Gains (Losses) in Income Reclassified from Accumulated OCI (164) (255)
Hedge Ineffectiveness and Amounts Excluded from Effectiveness Testing 6 (1)
Price risk on restricted stock awards | Cash flow hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Gains (Losses) Recognized in Accumulated OCI on Derivatives (198) (210)
Gains (Losses) in Income Reclassified from Accumulated OCI (34) (1)
Hedge Ineffectiveness and Amounts Excluded from Effectiveness Testing 0 0
Foreign exchange risk | Net investment hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Gains (Losses) Recognized in Accumulated OCI on Derivatives (633) 1,982
Gains (Losses) in Income Reclassified from Accumulated OCI 1 0
Hedge Ineffectiveness and Amounts Excluded from Effectiveness Testing $ (143) $ (98)