SEGMENT REPORTING - Schedule of Segment Revenue and Net Before Tax Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Revenue	$ 3,131	$ 3,098
Used vehicle sales, net	(9)	(20)
Segment EBT	175	154
Non-operating pension costs, net	(9)	(11)
Other items impacting comparability, net	1	(5)
Earnings from continuing operations before income taxes	134	114
Fleet Management Solutions
Segment Reporting Information [Line Items]
Revenue	1,447	1,455
Supply Chain Solutions
Segment Reporting Information [Line Items]
Revenue	1,331	1,302
Operating Segments | Fleet Management Solutions
Segment Reporting Information [Line Items]
Revenue	1,447	1,455
Direct operating costs	1,154	1,171
Used vehicle sales, net	(9)	(20)
Other segment items	208	204
Segment EBT	94	100
Operating Segments | Supply Chain Solutions
Segment Reporting Information [Line Items]
Revenue	1,331	1,302
Direct operating costs	1,182	1,175
Used vehicle sales, net	0	0
Other segment items	62	63
Segment EBT	87	64
Operating Segments | Dedicated Transportation Solutions
Segment Reporting Information [Line Items]
Revenue	602	563
Direct operating costs	565	524
Used vehicle sales, net	0	0
Other segment items	10	21
Segment EBT	27	18
Eliminations
Segment Reporting Information [Line Items]
Revenue	(249)	(222)
Segment EBT	(33)	(28)
Segment Reconciling Items
Segment Reporting Information [Line Items]
Unallocated Central Support Services	(20)	(14)
Intangible amortization expense	(13)	(11)
Non-operating pension costs, net	(9)	(11)
Other items impacting comparability, net	$ 1	$ (4)