Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE FINANCIAL INSTRUMENTS - Hedging Instruments (Details)

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DERIVATIVE FINANCIAL INSTRUMENTS - Hedging Instruments (Details) - USD ($)
$ in Millions
Mar. 31, 2018
Dec. 31, 2017
Derivatives, Fair Value [Line Items]    
Derivative, Notional Amount $ 7,852 $ 8,375
Asset derivatives included in accrued income and other assets    
Total contracts 356 322
Liability derivatives included in accrued expenses and other liabilities    
Total contracts 439 331
Accrued income and other assets    
Asset derivatives included in accrued income and other assets    
Interest rate contracts designated as hedging instruments 15 22
Interest rate contracts not designated as hedging instruments 228 187
Foreign exchange contracts not designated as hedging instruments 20 18
Commodities contracts not designated as hedging instruments 89 92
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value 4 3
Total contracts 356 322
Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Interest rate contracts designated as hedging instruments 191 121
Interest rate contracts not designated as hedging instruments 138 100
Foreign exchange contracts not designated as hedging instruments 22 18
Commodities contracts not designated as hedging instruments 83 87
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value 5 5
Total contracts $ 439 $ 331