DISCONTINUED OPERATIONS (Details) - USD ($)	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2020	Jun. 30, 2020	Jun. 01, 2020
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Net income from discontinued operations	$ 104,700,000	$ 39,500,000
Working capital, maximum required for operations	500,000,000.0
Discontinued Operations, Held-for-sale or Disposed of by Sale | Coty's Professional And Retail Hair Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration to be received from divestment					$ 4,300,000,000.0
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Net revenues	566,400,000	531,600,000
Cost of sales	181,000,000.0	176,500,000
Gross profit	385,400,000	355,100,000
Selling, general and administrative expenses	240,000,000.0	265,900,000
Amortization expense	0	26,000,000.0
Restructuring costs	0	1,200,000
Operating income	145,400,000	62,000,000.0
Interest expense, net	11,800,000	14,300,000
Other (income) expense, net	100,000
Other (income) expense, net		(100,000)
Income from discontinued operations before income taxes	133,500,000	47,800,000
Income tax on discontinued operations	28,800,000	8,300,000
Net income from discontinued operations	104,700,000	39,500,000
NON-CASH OPERATING ITEMS
Depreciation and amortization	0	36,300,000
CASH FLOW FROM INVESTING ACTIVITIES
Capital Expenditures	4,700,000	$ 7,900,000
ASSETS
Trade receivables	239,300,000			$ 168,000,000.0
Inventories	252,800,000			269,200,000
Prepaid expenses and other current assets	138,100,000			134,900,000
Property and equipment, net	246,100,000			241,300,000
Goodwill	900,400,000			874,800,000
Other intangible assets, net	2,801,100,000			2,770,400,000
Operating lease right of use asset	115,400,000			73,400,000
Deferred income taxes	21,800,000			25,500,000
Other noncurrent assets	48,400,000			55,600,000
TOTAL ASSETS HELD FOR SALE	4,763,400,000			4,613,100,000
LIABILITIES
Accounts payable	111,900,000			128,300,000
Accrued expenses and other current liabilities	233,400,000			236,400,000
Current operating lease liabilities	24,000,000.0			17,200,000
Income and other taxes payable	17,500,000			15,800,000
Long-term operating lease liabilities	92,900,000			65,900,000
Noncurrent deferred tax liabilities	322,300,000			324,800,000
Pension and other post-employment benefits	154,000,000.0			140,800,000
Other noncurrent liabilities	29,100,000			27,500,000
TOTAL LIABILITIES HELD FOR SALE	$ 985,100,000			$ 956,700,000
Discontinued Operations, Held-for-sale or Disposed of by Sale | Coty's Professional And Retail Hair Business | Forecast
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage after transaction			40.00%
Discontinued Operations, Held-for-sale or Disposed of by Sale | Coty's Professional And Retail Hair Business | KKR | Forecast
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage after transaction			60.00%