ACCRUED EXPENSES AND OTHER LIABILITIES - Summary of Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accrued expenses and other current liabilities
Operating lease liabilities	$ 302	$ 234
Deferred revenue	160	177
Self-insurance	193	175
Salaries and wages	197	200
Pension and other employee benefits	26	27
Operating taxes	134	129
Deferred compensation	7	6
Deposits, mainly from customers	67	68
Interest	65	59
Income taxes	7	14
Other	165	144
Total	1,323	1,233
Other non-current liabilities
Operating lease liabilities	804	800
Deferred revenue	440	368
Self-insurance	349	284
Salaries and wages	0	0
Pension and other employee benefits	156	231
Operating taxes	0	0
Deferred compensation	127	102
Deposits, mainly from customers	0	0
Interest	0	0
Income taxes	0	0
Other	78	86
Total	1,954	1,871
Total
Operating lease liabilities	1,106	1,034
Deferred revenue	600	545	$ 544	$ 594
Self-insurance	542	459
Liability, Defined Benefit Pension Plan	182	258
Salaries and wages	197	200
Operating taxes	134	129
Deferred compensation	134	108
Deposits, mainly from customers	67	68
Interest	65	59
Income taxes	7	14
Other	243	230
Total	$ 3,277	$ 3,104