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INVESTMENTS - Deconsolidation Impacts on Financial Statements (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Gains recognized upon deconsolidation | $ (82.8) | $ (11.5) | $ (561.2) | $ 234.5
Reclassification out of accumulated other comprehensive income | Currency translation adjustments |  |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Gains recognized upon deconsolidation | 0.0 | 0.0 | 6.8 | 2.6
Assets |  |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Net increase (decrease) in assets, liabilities, and redeemable noncontrolling interest | 24.2 | 589.7 | (289.6) | (727.6)
Liability |  |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Net increase (decrease) in assets, liabilities, and redeemable noncontrolling interest | 0.0 | 7.1 | (15.0) | (17.1)
Redeemable noncontrolling interest |  |  |  |
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Net increase (decrease) in assets, liabilities, and redeemable noncontrolling interest | $ 42.9 | $ 531.0 | $ (175.2) | $ (483.6)

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