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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Derivative Liabilities (Detail) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Derivative [Line Items]    
Net Amount Presented in the Consolidated Balance Sheets $ 44 $ 23
Financial Instruments 42 23
Cash Collateral 2 0
Net Amount 0 0
Interest rate contracts - designated [Member]    
Derivative [Line Items]    
Net Amount Presented in the Consolidated Balance Sheets 0 0
Interest rate swaps - not designated [Member]    
Derivative [Line Items]    
Net Amount Presented in the Consolidated Balance Sheets 44 23
Financial Instruments 42 23
Cash Collateral 2 0
Net Amount $ 0 $ 0