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DISCONTINUED OPERATIONS AND OTHER DIVESTITURES - Narrative (Details) R$ in Millions, $ in Millions		3 Months Ended		6 Months Ended
	Nov. 12, 2021 USD ($)	Jun. 30, 2022 USD ($) dealership	Dec. 31, 2021 USD ($)	Jun. 30, 2022 USD ($) dealership	Jun. 30, 2021 USD ($) dealership franchise	Nov. 12, 2021 BRL (R$)
Brazil | General Representations and Warranties
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Holdback portion of consideration | R$						R$ 115.0
Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Dispositions reduced goodwill				$ 24.1	$ 2.2
Held-for-sale | Brazil
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Consideration for disposal	$ 510.0					R$ 510.0
Holdback portion of consideration	$ 22.1
Holdback term (years)	5 years
Net loss		$ (6.3)	$ (77.5)	(83.8)
Estimated amount of currency translation loss recorded in AOCI				(122.8)
Foreign exchange risk exposure		$ 70.0		70.0
Foreign currency transaction gain (loss), settled				8.4
United States Segment | Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Net pre-tax gain (loss) on dealership dispositions				$ 24.1	$ 1.8
Number of franchises disposed | dealership				4	2
Number of franchises terminated | franchise					1
Number of dealerships | dealership		4		4	2
United Kingdom | Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Number of dealerships | dealership					1

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