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INVESTMENTS - Deconsolidation Impacts on Financial Statements (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt and Equity Securities, FV-NI [Line Items]
Gains recognized upon deconsolidation	$ 2.8	$ (82.8)	$ 244.4	$ (561.2)
Reclassification out of accumulated other comprehensive income | Currency translation adjustments
Debt and Equity Securities, FV-NI [Line Items]
Gains recognized upon deconsolidation	0.7	0.0	0.7	6.9
Assets
Debt and Equity Securities, FV-NI [Line Items]
Net decrease in assets, liabilities and redeemable noncontrolling interests	(568.7)	24.2	(650.1)	(289.6)
Liability
Debt and Equity Securities, FV-NI [Line Items]
Net decrease in assets, liabilities and redeemable noncontrolling interests	(10.4)	0.0	(43.5)	(15.0)
Redeemable Noncontrolling Interest
Debt and Equity Securities, FV-NI [Line Items]
Net decrease in assets, liabilities and redeemable noncontrolling interests	$ (466.1)	$ 42.9	$ (460.2)	$ (175.2)

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- Definition

Represents the carrying value of the assets (liabilities or redeemable noncontrolling interest) deconsolidated during the period as valued on the date that the parent no longer had a controlling financial interest in the subsidiary.

+ References

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- Definition

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

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