DERIVATIVE INSTRUMENTS - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($) yr	Dec. 31, 2020 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Derivative, Notional Amount	$ 45,161	$ 58,656
Cash flow hedging activity, maximum time period | yr	6
Derivative, net liability position, aggregate fair value	$ 497	$ 268
Additional Collateral, Aggregate Fair Value	38
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	(5)
Senior notes | Interest rate swaps
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Derivative, Notional Amount	$ 2,300