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SEGMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Reportable segment information

Selected reportable segment data for continuing operations as follows (in millions):

			Year Ended December 31, 2023
			U.S.						U.K.						Total
Total revenues			$	14,814.2					$	3,059.5					$	17,873.7
Gross profit			$	2,610.1					$	410.1					$	3,020.3
SG&A expenses			$	1,622.9					$	303.9					$	1,926.8
Depreciation and amortization expense			$	76.9					$	15.1					$	92.0
Floorplan interest expense			$	53.5					$	10.6					$	64.1
Other interest expense, net			$	91.4					$	8.4					$	99.8
Income before income taxes			$	732.1					$	68.1					$	800.2
Capital expenditures:
Real estate related capital expenditures			$	41.5					$	4.7					$	46.3
Non-real estate related capital expenditures			114.6						24.5						139.2
Total capital expenditures			$	156.2					$	29.3					$	185.4

			Year Ended December 31, 2022
			U.S.						U.K.						Total
Total revenues			$	13,427.1					$	2,795.1					$	16,222.1
Gross profit			$	2,582.3					$	382.9					$	2,965.2
SG&A expenses			$	1,516.9					$	266.5					$	1,783.3
Depreciation and amortization expense			$	73.1					$	15.2					$	88.4
Floorplan interest expense			$	21.4					$	5.9					$	27.3
Other interest expense, net			$	71.0					$	6.6					$	77.5
Income before income taxes			$	897.4					$	87.9					$	985.3
Capital expenditures:
Real estate related capital expenditures			$	17.7					$	22.0					$	39.6
Non-real estate related capital expenditures			100.2						15.3						115.5
Total capital expenditures			$	117.8					$	37.3					$	155.1

			Year Ended December 31, 2021
			U.S.						U.K.						Total
Total revenues			$	10,846.3					$	2,635.6					$	13,481.9
Gross profit			$	2,089.5					$	351.2					$	2,440.7
SG&A expenses			$	1,234.9					$	242.2					$	1,477.2
Depreciation and amortization expense			$	60.4					$	17.0					$	77.4
Floorplan interest expense			$	22.2					$	5.4					$	27.6
Other interest expense, net			$	48.5					$	7.3					$	55.8
Income before income taxes			$	721.8					$	79.2					$	800.9
Capital expenditures:
Real estate related capital expenditures			$	18.9					$	27.0					$	45.9
Non-real estate related capital expenditures			82.3						13.9						96.2
Total capital expenditures			$	101.2					$	40.9					$	142.1

Goodwill and intangible franchise rights and total assets by reportable segment

						December 31, 2023
						U.S.						U.K.						Total
Property and equipment, net						$	1,915.2					$	333.5					$	2,248.7
Total assets						$	6,665.7					$	1,086.6					$	7,752.3

						December 31, 2022
						U.S.						U.K.						Total
Property and equipment, net						$	1,824.1					$	304.1					$	2,128.2
Total assets						$	5,710.8					$	983.8					$	6,694.7

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- Definition

Schedule of Segment Reporting, by Segment, Goodwill and Intangible Assets [Table Text Block]

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Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

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-Name Accounting Standards Codification
-Topic 350
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