INVESTMENT SECURITIES - Contractual Maturities of Debt Securities Available for Sale (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Amortized Cost
Due within one year	$ 529
Due after one year through five years	3,399
Due after five years through ten years	3,231
Due after ten years	1,250
Mortgage and asset-backed securities	7,537
Amortized Cost	15,946	$ 13,440
Fair Value
Due within one year	525
Due after one year through five years	3,210
Due after five years through ten years	2,764
Due after ten years	994
Mortgage and asset-backed securities	6,761
Fair Value	$ 14,254	$ 13,497

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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