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ACCRUED WORKERS' COMPENSATION COSTS - Schedule of Workers' Compensation Loss Reserve Activity (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Total accrued costs, beginning of period	$ 175	$ 189
Incurred
Current year	16	16
Prior years	(4)	(6)
Total incurred	12	10
Paid
Current year	(1)	(1)
Prior years	(11)	(11)
Total paid	(12)	(12)
Total accrued costs, end of period	$ 175	$ 187

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