INCOME TAXES - Unrecognized tax benefits and associated interest and penalties (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits, beginning balance	$ 63.6	$ 68.8
Reductions for tax positions related to prior years	(19.1)	(22.8)
Additions for tax positions related to current year	25.1	16.8
Additions for tax positions due to settlements		0.8
Reductions for tax positions due to settlements	(3.5)
Unrecognized tax benefits, ending balance	$ 66.1	$ 63.6

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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