INCOME TAXES - Net Deferred Income Tax Assets And Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred income tax assets:
Self-insurance accruals	$ 109	$ 111
Net operating loss carryforwards	182	271
Accrued compensation and benefits	88	69
Pension benefits	27	17
Deferred revenue	131	153
Other, including federal benefit on state tax positions	25	31
Deferred tax assets gross	562	652
Valuation allowance	(88)	(24)
Deferred tax assets net	474	628
Deferred income tax liabilities:
Property and equipment basis differences	(2,013)	(1,874)
Other	(18)	(24)
Deferred tax liabilities, gross	(2,031)	(1,898)
Net deferred income tax liability	(1,557)	(1,270)
Deferred tax assets included in Sales-type lease and other assets	$ 14	$ 5