INCOME TAXES - Schedule of Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Net operating losses (federal and state)	$ 6	$ 7
Accrued expenses	18	17
Accrued workers' compensation costs	9	8
Recovery credit	2	20
Operating lease liabilities	11	14
Stock based compensation	2	3
Tax benefits relating to uncertain positions	1	1
Tax credits (federal, state and foreign)	7	7
Section 174 Capitalized R&D	21	13
Other	2	3
Total	79	93
Valuation allowance	(8)	(8)	$ (5)	$ (5)
Total deferred tax assets	71	85
Deferred tax liabilities:
Depreciation and amortization	(48)	(54)
Prepaid commission expenses	(26)	(24)
Operating lease right-of-use assets	(5)	(10)
Total deferred tax liabilities	(79)	(88)
Net deferred tax liabilities	$ (8)	$ (3)