SEGMENT REPORTING (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Lease & related maintenance and rental revenue	$ 1,044,547	$ 1,013,968	$ 3,119,136	$ 2,941,084
Revenues	3,035,464	2,459,049	8,922,988	7,062,908
Earnings from continuing operations before taxes	329,418	198,811	937,401	489,346
Non-operating pension costs, net	(2,647)	148	(8,015)	530
Other items impacting comparability, net	3,331	(4,137)	(21,225)	(22,463)
Earnings from continuing operations before income taxes	334,204	183,206	924,446	457,046
Capital expenditures paid	721,692	523,286	1,916,704	1,427,684
Supply Chain Solutions
Segment Reporting Information [Line Items]
Revenues	1,206,508	802,357	3,469,008	2,284,687
Operating Segments | Fleet Management Solutions
Segment Reporting Information [Line Items]
Revenues	1,581,870	1,436,340	4,732,193	4,180,066
Earnings from continuing operations before taxes	265,301	186,391	798,822	408,244
Capital expenditures paid	655,734	498,099	1,767,573	1,369,681
Operating Segments | Fleet Management Solutions | ChoiceLease
Segment Reporting Information [Line Items]
Lease & related maintenance and rental revenue	791,156	799,557	2,396,075	2,399,477
Operating Segments | Fleet Management Solutions | Commercial rental
Segment Reporting Information [Line Items]
Lease & related maintenance and rental revenue	349,550	300,640	1,003,380	790,618
Operating Segments | Fleet Management Solutions | SelectCare and other
Segment Reporting Information [Line Items]
Lease & related maintenance and rental revenue	162,520	147,384	492,878	450,272
Operating Segments | Fleet Management Solutions | Fuel services and ChoiceLease liability insurance
Segment Reporting Information [Line Items]
Revenues	278,644	188,759	839,860	539,699
Operating Segments | Supply Chain Solutions
Segment Reporting Information [Line Items]
Revenues	1,206,508	802,357	3,469,008	2,284,687
Earnings from continuing operations before taxes	63,974	22,161	150,833	96,159
Capital expenditures paid	58,820	21,224	124,395	44,204
Operating Segments | Dedicated Transportation Solutions
Segment Reporting Information [Line Items]
Revenues	454,328	380,357	1,329,504	1,055,575
Earnings from continuing operations before taxes	28,150	11,324	71,517	37,468
Capital expenditures paid	251	299	1,705	861
Eliminations
Segment Reporting Information [Line Items]
Revenues	(207,242)	(160,005)	(607,717)	(457,420)
Earnings from continuing operations before taxes	(28,007)	(21,065)	(83,771)	(52,525)
Segment Reconciling Items
Segment Reporting Information [Line Items]
Unallocated Central Support Services	(21,041)	(17,027)	(60,813)	(53,323)
Non-operating pension costs, net	(2,647)	148	(8,015)	530
Other items impacting comparability, net	28,474	1,274	55,873	20,493
Capital expenditures paid	$ 6,887	$ 3,664	$ 23,031	$ 12,938