INVESTMENTS - Schedule of Total Assets, Liabilities and Non-controlling Interests (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Subsidiary or Equity Method Investee [Line Items]
Assets	$ 15,357.2	$ 14,341.8
Liabilities	3,184.4	2,288.6
Non-controlling interest	161.0	157.1
Variable interest entities
Subsidiary or Equity Method Investee [Line Items]
Assets	426.1	438.7
Liabilities	$ 1.1	$ 5.8

Amount of asset recognized for present right to economic benefit.

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