DEBT - Schedule of Long Term Debt Facilities (Details)	12 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019	Jun. 30, 2020 EUR (€)	Apr. 05, 2018 USD ($)	Apr. 05, 2018 EUR (€)
Line of Credit | Revolving credit facility
Line of Credit Facility [Line Items]
Repayment percentage	1.25%
Line of Credit | Revolving credit facility | LIBOR | Minimum
Line of Credit Facility [Line Items]
Margin percentage	1.00%
Line of Credit | Revolving credit facility | LIBOR | Maximum
Line of Credit Facility [Line Items]
Margin percentage	2.00%
Line of Credit | Revolving credit facility | Base Rate | Minimum
Line of Credit Facility [Line Items]
Margin percentage	0.00%
Line of Credit | Revolving credit facility | Base Rate | Maximum
Line of Credit Facility [Line Items]
Margin percentage	1.00%
Line of Credit | Revolving credit facility | 2018 Coty Revolving Credit Facility due April 2023
Line of Credit Facility [Line Items]
Borrowing Capacity | $	$ 2,750,000,000.0
Applicable Interest Rate Spread	1.75%		1.75%
Line of Credit | Revolving credit facility | Coty Credit Agreement
Line of Credit Facility [Line Items]
Unused commitment fee percentage	0.30%	0.30%
Line of Credit | Revolving credit facility | Coty Credit Agreement | Minimum
Line of Credit Facility [Line Items]
Unused commitment fee percentage	0.10%
Line of Credit | Revolving credit facility | Coty Credit Agreement | Maximum
Line of Credit Facility [Line Items]
Unused commitment fee percentage	0.35%
Line of Credit | Term Loan | Euro
Line of Credit Facility [Line Items]
Repayment percentage	0.25%
Line of Credit | Term Loan | Term Loan A Facility, Due April 2023 | U.S. Dollar
Line of Credit Facility [Line Items]
Borrowing Capacity | $	$ 1,000,000,000.0
Applicable Interest Rate Spread	1.75%		1.75%
Line of Credit | Term Loan | Term Loan A Facility, Due April 2023 | Euro
Line of Credit Facility [Line Items]
Borrowing Capacity			€ 2,035,000,000.0
Applicable Interest Rate Spread	1.75%		1.75%
Line of Credit | Term Loan | Term Loan B Facility, Due April 2025 | U.S. Dollar
Line of Credit Facility [Line Items]
Borrowing Capacity | $	$ 1,400,000,000.0
Applicable Interest Rate Spread	2.25%		2.25%
Debt Discount	0.25%		0.25%
Line of Credit | Term Loan | Term Loan B Facility, Due April 2025 | Euro
Line of Credit Facility [Line Items]
Borrowing Capacity			€ 850,000,000.0
Applicable Interest Rate Spread	2.50%		2.50%
Debt Discount	0.25%		0.25%
Line of Credit | Term Loan | Term Loan B Facility, Due April 2025 | LIBOR | U.S. Dollar
Line of Credit Facility [Line Items]
Margin percentage	2.25%
Line of Credit | Term Loan | Term Loan B Facility, Due April 2025 | LIBOR | Euro
Line of Credit Facility [Line Items]
Margin percentage	2.50%
Line of Credit | Term Loan | Term Loan B Facility, Due April 2025 | Base Rate | U.S. Dollar
Line of Credit Facility [Line Items]
Margin percentage	1.25%
Senior Notes | 2026 Dollar Notes
Line of Credit Facility [Line Items]
Borrowing Capacity | $				$ 550,000,000.0
Stated interest rate				6.50%	6.50%
Senior Notes | 2023 Euro Notes
Line of Credit Facility [Line Items]
Borrowing Capacity					€ 550,000,000.0
Stated interest rate				4.00%	4.00%
Senior Notes | 2026 Euro Notes
Line of Credit Facility [Line Items]
Borrowing Capacity					€ 250,000,000.0
Margin percentage	0.50%
Stated interest rate				4.75%	4.75%
Senior Notes | Term Loan | 2026 Dollar Notes | U.S. Dollar
Line of Credit Facility [Line Items]
Borrowing Capacity | $	$ 550,000,000.0
Stated interest rate	6.50%		6.50%
Senior Notes | Term Loan | 2023 Euro Notes | Euro
Line of Credit Facility [Line Items]
Borrowing Capacity			€ 550,000,000.0
Stated interest rate	4.00%		4.00%
Senior Notes | Term Loan | 2026 Euro Notes | Euro
Line of Credit Facility [Line Items]
Borrowing Capacity			€ 250,000,000.0
Stated interest rate	4.75%		4.75%