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EQUITY INVESTMENTS - Summary of Movement in Equity Investments (Details) - Wella Business
$ in Millions
12 Months Ended
Jun. 30, 2021
USD ($)
Equity investments at fair value:  
Balance as of June 30, 2020 $ 0.0
Initial investment 1,186.5
Total gains/(losses) included in earnings - unrealized 73.5
Balance as of June 30, 2021 $ 1,260.0