INCOME TAXES - Net operating loss and income tax credit carryforwards (Details) $ in Millions	Dec. 31, 2021 USD ($)
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	$ 22
Less: valuation allowance	(6)
Total, net	16
Indefinite
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	22
Less: valuation allowance	(6)
Total, net	$ 16