BASIS OF PRESENTATION - Schedule of Variable Interest Entities (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Variable Interest Entity [Line Items]
Other accruals	$ 1,206.1	$ 1,151.8	$ 1,508.9
Other long-term liabilities	2,590.7	2,522.1	2,575.8
VIEs
Variable Interest Entity [Line Items]
Accrued taxes	35.6	31.5	128.3
Other assets	866.2	885.3	826.1
Other accruals	120.4	94.0	123.4
Other long-term liabilities	710.7	733.6	667.8
Net deferred income tax asset	$ 4.4	$ 13.8	$ 2.6