INVESTMENT SECURITIES (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Marketable Securities, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Available-for-sale securities, Amortized Cost	$ 171		$ 171		$ 173
Available-for-sale securities, Unrealized Gains					4
Available-for-sale securities, Unrealized Losses	(15)		(15)		(2)
Available-for-sale securities, Fair Value	156		156		175
Equity securities, Amortized Cost	68		68		64
Equity securities, Fair Value	68		68		64
Amortized Cost, Total	239		239		237
Fair Value, Total	224		224		239
Fair Value
Less than 12 months	131		131		57
12 Months or Greater	25		25		15
Total	156		156		72
Unrealized Losses
Less than 12 months	(10)		(10)		(1)
12 Months or Greater	(5)		(5)		(1)
Total	(15)		(15)		(2)
Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Available-for-sale securities, Unrealized Gains					4
Available-for-sale securities, Unrealized Losses	(15)		(15)		(2)
Available-for-sale securities, Fair Value	156		156		$ 175
Estimated Fair Value
Gains or losses from the sale of investment securities	0	$ 0	0	$ 0
Mortgage-backed securities
Amortized Cost
Mortgage-backed securities with no stated maturity	171		171
Estimated Fair Value
Mortgage-backed securities with no stated maturity	$ 156		$ 156

Amortized cost of available-for-sale and equity securities.

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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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