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GOODWILL AND INTANGIBLE FRANCHISE RIGHTS - Franchise Rights (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Indefinite-lived Intangible Assets [Roll Forward]
Asset impairments			$ (149.5)	$ (117.2)	$ 0.0
Franchise rights
Indefinite-lived Intangible Assets [Roll Forward]
Beginning balance			2,095.8	1,800.1
Reclassified from assets held for sale			71.9
Acquisitions - measurement-period adjustments			26.7	429.0
Asset impairments	$ (14.1)	$ (134.1)	(148.2)	(102.3)
Reclassified to assets held for sale			(6.5)	31.0
Divestitures			(74.6)
Ending balance	$ 1,911.7		$ 1,911.7	$ 2,095.8	$ 1,800.1

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- Definition

Impairment of Intangible Assets, Reclassified from assets held for sale

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
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- Definition

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of divestiture of an asset lacking physical substance and having a projected indefinite period of benefit to fair value. Excludes financial assets and goodwill.

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- Definition

Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, from an acquisition.

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