INCOME TAXES - Additional Infromation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Income Tax Contingency [Line Items]
Effective income tax rate, percent	23.30%	33.00%	31.40%	35.60%
Unrecognized tax benefits that would impact effective tax rate	$ 7		$ 7		$ 21
Penalties and interest accrued	16		16		$ 41
Loss, tax matters agreement			30
Indemnified tax liability
Income Tax Contingency [Line Items]
Penalties and interest accrued	$ 4		$ 4