CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions | Total | Cumulative Effect, Period of Adoption, Adjustment | Cumulative Effect, Period of Adoption, Adjusted Balance | Class A Common Stock | Total Coty Inc. Stockholders’ Equity | Total Coty Inc. Stockholders’ EquityCumulative Effect, Period of Adoption, Adjustment | Total Coty Inc. Stockholders’ EquityCumulative Effect, Period of Adoption, Adjusted Balance | Total Coty Inc. Stockholders’ EquityClass A Common Stock | Preferred Stock | Preferred StockCumulative Effect, Period of Adoption, Adjusted Balance | Common StockClass A Common Stock | Common StockClass A Common StockCumulative Effect, Period of Adoption, Adjusted Balance | Additional Paid-in Capital | Additional Paid-in CapitalCumulative Effect, Period of Adoption, Adjusted Balance | Additional Paid-in CapitalClass A Common Stock | (Accumulated Deficit) | (Accumulated Deficit)Cumulative Effect, Period of Adoption, Adjustment | (Accumulated Deficit)Cumulative Effect, Period of Adoption, Adjusted Balance | Accumulated Other Comprehensive (Loss) Income | Accumulated Other Comprehensive (Loss) IncomeCumulative Effect, Period of Adoption, Adjusted Balance | Treasury Stock | Treasury StockCumulative Effect, Period of Adoption, Adjusted Balance | Noncontrolling Interests | Noncontrolling InterestsCumulative Effect, Period of Adoption, Adjusted Balance |
Balance, beginning of period (in shares) at Jun. 30, 2019 | | | | | | | | | 9,400,000 | 9,400,000 | 819,200,000 | 819,200,000 | | | | | | | | | 65,000,000 | 65,000,000 | | |
Balance, beginning of period at Jun. 30, 2019 | $ 4,593.4 | | $ 4,592.7 | | $ 4,586.9 | | $ 4,586.2 | | $ 0.1 | $ 0.1 | $ 8.1 | $ 8.1 | $ 10,620.5 | $ 10,620.5 | | $ (4,541.2) | | $ (4,541.9) | $ (58.8) | $ (58.8) | $ (1,441.8) | $ (1,441.8) | $ 6.5 | $ 6.5 |
Balance, beginning of period (Adjustment due to the adoption of ASU No. 2016-16) at Jun. 30, 2019 | | $ (0.7) | | | | $ (0.7) | | | | | | | | | | | $ (0.7) | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | |
Purchase of Class A Common Stock (in shares) | 500,000 | | | | | | | | | | | | | | | | | | | | 500,000 | | | |
Purchase of Class A Common Stock | $ (4.5) | | | | (4.5) | | | | | | | | | | | | | | | | $ (4.5) | | | |
Exercise of employee stock options and restricted stock units (in shares) | | | | | | | | | | | 100,000 | | | | | | | | | | | | | |
Exercise of employee stock options and restricted stock units | 0.6 | | | | 0.6 | | | | | | | | 0.6 | | | | | | | | | | | |
Share-based compensation expense | 6.2 | | | | 6.2 | | | | | | | | 6.2 | | | | | | | | | | | |
Dividends declared - Cash and Other | (63.5) | | | | (63.5) | | | | | | | | (63.5) | | | | | | | | | | | |
Dividends declared - stock | (30.9) | | | | (30.9) | | | | | | | | (30.9) | | | | | | | | | | | |
Dividends settled in Shares of Class A Common Stock (in shares) | | | | | | | | | | | 3,200,000 | | | | | | | | | | | | | |
Dividends settled in Shares of Class A Common Stock | | | | $ 30.9 | | | | $ 30.9 | | | | | | | $ 30.9 | | | | | | | | | |
Net income (loss) | 55.1 | | | | 52.3 | | | | | | | | | | | 52.3 | | | | | | | 2.8 | |
Other comprehensive income (loss) | (124.6) | | | | (124.6) | | | | | | | | | | | | | | (124.6) | | | | | |
Adjustments related to the sale of the Wella Business | 6.2 | | | | 6.2 | | | | | | | | 6.2 | | | | | | | | | | | |
Adjustment of redeemable noncontrolling interests to redemption value | (3.9) | | | | (3.9) | | | | | | | | (3.9) | | | | | | | | | | | |
Balance, end of period (in shares) at Sep. 30, 2019 | | | | | | | | | 9,400,000 | | 822,500,000 | | | | | | | | | | 65,500,000 | | | |
Balance, end of period at Sep. 30, 2019 | 4,464.3 | | | | 4,455 | | | | $ 0.1 | | $ 8.1 | | 10,566.1 | | | (4,489.6) | | | (183.4) | | $ (1,446.3) | | 9.3 | |
Balance, beginning of period at Jun. 30, 2019 | 451.8 | | 451.8 | | | | | | | | | | | | | | | | | | | | | |
Redeemable Noncontrolling Interests | | | | | | | | | | | | | | | | | | | | | | | | |
Net income | 1.2 | | | | | | | | | | | | | | | | | | | | | | | |
Distribution to noncontrolling interests, net | (1.9) | | | | | | | | | | | | | | | | | | | | | | | |
Adjustments related to the sale of the Wella Business | (360.4) | | | | | | | | | | | | | | | | | | | | | | | |
Adjustment of redeemable noncontrolling interests to redemption value | 3.9 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Sep. 30, 2019 | 94.6 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, beginning of period (in shares) at Jun. 30, 2019 | | | | | | | | | 9,400,000 | 9,400,000 | 819,200,000 | 819,200,000 | | | | | | | | | 65,000,000 | 65,000,000 | | |
Balance, beginning of period at Jun. 30, 2019 | 4,593.4 | | 4,592.7 | | 4,586.9 | | 4,586.2 | | $ 0.1 | $ 0.1 | $ 8.1 | $ 8.1 | 10,620.5 | 10,620.5 | | (4,541.2) | | (4,541.9) | (58.8) | (58.8) | $ (1,441.8) | $ (1,441.8) | 6.5 | 6.5 |
Balance, beginning of period (Adjustment due to the adoption of ASU No. 2016-16) at Jun. 30, 2019 | | (0.7) | | | | (0.7) | | | | | | | | | | | (0.7) | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | |
Dividends settled in Shares of Class A Common Stock | 0 | | | | | | | | | | | | | | | | | | | | | | | |
Other comprehensive income (loss) | (18.6) | | | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period (in shares) at Dec. 31, 2019 | | | | | | | | | 9,400,000 | | 826,000,000 | | | | | | | | | | 65,500,000 | | | |
Balance, end of period at Dec. 31, 2019 | 4,481.6 | | | | 4,471.7 | | | | $ 0.1 | | $ 8.3 | | 10,497.8 | | | (4,510.7) | | | (77.5) | | $ (1,446.3) | | 9.9 | |
Balance, beginning of period at Jun. 30, 2019 | 451.8 | | 451.8 | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Dec. 31, 2019 | 98.6 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, beginning of period (in shares) at Jun. 30, 2019 | | | | | | | | | 9,400,000 | 9,400,000 | 819,200,000 | 819,200,000 | | | | | | | | | 65,000,000 | 65,000,000 | | |
Balance, beginning of period at Jun. 30, 2019 | 4,593.4 | | 4,592.7 | | 4,586.9 | | 4,586.2 | | $ 0.1 | $ 0.1 | $ 8.1 | $ 8.1 | 10,620.5 | 10,620.5 | | (4,541.2) | | (4,541.9) | (58.8) | (58.8) | $ (1,441.8) | $ (1,441.8) | 6.5 | 6.5 |
Balance, beginning of period (Adjustment due to the adoption of ASU No. 2016-16) at Jun. 30, 2019 | | (0.7) | | | | (0.7) | | | | | | | | | | | (0.7) | | | | | | | |
Balance, end of period (in shares) at Jun. 30, 2020 | | | | | | | | | 1,500,000 | 1,500,000 | 830,600,000 | 830,600,000 | | | | | | | | | 65,500,000 | 65,500,000 | | |
Balance, end of period at Jun. 30, 2020 | $ 3,228.8 | (5.7) | 3,223.1 | | 3,004.6 | (5.7) | 2,998.9 | | | | $ 8.3 | $ 8.3 | 10,447.4 | 10,447.4 | | (5,548.6) | (5.7) | (5,554.3) | (456.2) | (456.2) | $ (1,446.3) | $ (1,446.3) | 224.2 | 224.2 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | |
Accounting Standards Update [Extensible List] | us-gaap:AccountingStandardsUpdate201613Member | | | | | | | | | | | | | | | | | | | | | | | |
Balance, beginning of period at Jun. 30, 2019 | $ 451.8 | | 451.8 | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Jun. 30, 2020 | 79.1 | | 79.1 | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Jun. 30, 2020 | 715.8 | | 715.8 | | | | | | | | | | | | | | | | | | | | | |
Balance, beginning of period (in shares) at Sep. 30, 2019 | | | | | | | | | 9,400,000 | | 822,500,000 | | | | | | | | | | 65,500,000 | | | |
Balance, beginning of period at Sep. 30, 2019 | 4,464.3 | | | | 4,455 | | | | $ 0.1 | | $ 8.1 | | 10,566.1 | | | (4,489.6) | | | (183.4) | | $ (1,446.3) | | 9.3 | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | |
Exercise of employee stock options and restricted stock units (in shares) | | | | | | | | | | | 1,100,000 | | | | | | | | | | | | | |
Exercise of employee stock options and restricted stock units | 1.5 | | | | 1.5 | | | | | | | | 1.5 | | | | | | | | | | | |
Shares withheld for employee taxes | (3.5) | | | | (3.5) | | | | | | | | (3.5) | | | | | | | | | | | |
Share-based compensation expense | 10.3 | | | | 10.3 | | | | | | | | 10.3 | | | | | | | | | | | |
Dividends declared - Cash and Other | (66.1) | | | | (66.1) | | | | | | | | (66.1) | | | | | | | | | | | |
Dividends | (29.3) | | | | (29.3) | | | | | | | | (29.3) | | | | | | | | | | | |
Dividends settled in Shares of Class A Common Stock (in shares) | | | | | | | | | | | 2,400,000 | | | | | | | | | | | | | |
Dividends settled in Shares of Class A Common Stock | | | | 29.5 | | | | 29.5 | | | $ 0.2 | | | | 29.3 | | | | | | | | | |
Net income (loss) | (20.6) | | | | (21.1) | | | | | | | | | | | (21.1) | | | | | | | 0.5 | |
Other comprehensive income (loss) | 106 | | | | 105.9 | | | | | | | | | | | | | | 105.9 | | | | 0.1 | |
Adjustment of redeemable noncontrolling interests to redemption value | (10.5) | | | | (10.5) | | | | | | | | (10.5) | | | | | | | | | | | |
Balance, end of period (in shares) at Dec. 31, 2019 | | | | | | | | | 9,400,000 | | 826,000,000 | | | | | | | | | | 65,500,000 | | | |
Balance, end of period at Dec. 31, 2019 | 4,481.6 | | | | 4,471.7 | | | | $ 0.1 | | $ 8.3 | | 10,497.8 | | | (4,510.7) | | | (77.5) | | $ (1,446.3) | | 9.9 | |
Balance, beginning of period at Sep. 30, 2019 | 94.6 | | | | | | | | | | | | | | | | | | | | | | | |
Redeemable Noncontrolling Interests | | | | | | | | | | | | | | | | | | | | | | | | |
Net income | 4.2 | | | | | | | | | | | | | | | | | | | | | | | |
Adjustment of redeemable noncontrolling interests to redemption value | 10.5 | | | | | | | | | | | | | | | | | | | | | | | |
Distribution to noncontrolling interests, net | (10.7) | | | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Dec. 31, 2019 | 98.6 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, beginning of period (in shares) at Jun. 30, 2020 | | | | | | | | | 1,500,000 | 1,500,000 | 830,600,000 | 830,600,000 | | | | | | | | | 65,500,000 | 65,500,000 | | |
Balance, beginning of period at Jun. 30, 2020 | 3,228.8 | (5.7) | 3,223.1 | | 3,004.6 | (5.7) | 2,998.9 | | | | $ 8.3 | $ 8.3 | 10,447.4 | 10,447.4 | | (5,548.6) | (5.7) | (5,554.3) | (456.2) | (456.2) | $ (1,446.3) | $ (1,446.3) | 224.2 | 224.2 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | |
Exercise of employee stock options and restricted stock units (in shares) | | | | | | | | | | | 600,000 | | | | | | | | | | | | | |
Shares withheld for employee taxes | (1) | | | | (1) | | | | | | | | (1) | | | | | | | | | | | |
Share-based compensation expense | 6.2 | | | | 6.2 | | | | | | | | 6.2 | | | | | | | | | | | |
Changes in dividends accrued | 0.8 | | | | 0.8 | | | | | | | | 0.8 | | | | | | | | | | | |
Dividends accrued- Convertible Series B Preferred Stock | (20.8) | | | | (20.8) | | | | | | | | (20.8) | | | | | | | | | | | |
Net income (loss) | 221.8 | | | | 221.4 | | | | | | | | | | | 221.4 | | | | | | | 0.4 | |
Other comprehensive income (loss) | (6) | | | | (5.9) | | | | | | | | | | | | | | (5.9) | | | | (0.1) | |
Adjustment of redeemable noncontrolling interests to redemption value | 1.5 | | | | 1.5 | | | | | | | | 1.5 | | | | | | | | | | | |
Balance, end of period (in shares) at Sep. 30, 2020 | | | | | | | | | 1,500,000 | | 831,200,000 | | | | | | | | | | 65,500,000 | | | |
Balance, end of period at Sep. 30, 2020 | 3,425.6 | | | | 3,201.1 | | | | | | $ 8.3 | | 10,434.1 | | | (5,332.9) | | | (462.1) | | $ (1,446.3) | | 224.5 | |
Balance, beginning of period at Jun. 30, 2020 | 79.1 | | 79.1 | | | | | | | | | | | | | | | | | | | | | |
Redeemable Noncontrolling Interests | | | | | | | | | | | | | | | | | | | | | | | | |
Issuance of Preferred Stock | 242.4 | | | | | | | | | | | | | | | | | | | | | | | |
Dividends accrued- Convertible Series B Preferred Stock | 20.8 | | | | | | | | | | | | | | | | | | | | | | | |
Net income | 5.5 | | | | | | | | | | | | | | | | | | | | | | | |
Adjustment of redeemable noncontrolling interests to redemption value | (1.5) | | | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Sep. 30, 2020 | 83.1 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Sep. 30, 2020 | 979 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, beginning of period (in shares) at Jun. 30, 2020 | | | | | | | | | 1,500,000 | 1,500,000 | 830,600,000 | 830,600,000 | | | | | | | | | 65,500,000 | 65,500,000 | | |
Balance, beginning of period at Jun. 30, 2020 | $ 3,228.8 | $ (5.7) | 3,223.1 | | 3,004.6 | $ (5.7) | $ 2,998.9 | | | | $ 8.3 | $ 8.3 | 10,447.4 | $ 10,447.4 | | (5,548.6) | $ (5.7) | $ (5,554.3) | (456.2) | $ (456.2) | $ (1,446.3) | $ (1,446.3) | 224.2 | $ 224.2 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | |
Purchase of Class A Common Stock (in shares) | 0 | | | | | | | | | | | | | | | | | | | | | | | |
Changes in dividends accrued | $ 1.2 | | | | | | | | | | | | | | | | | | | | | | | |
Dividends settled in Shares of Class A Common Stock | 43.9 | | | | | | | | | | | | | | | | | | | | | | | |
Other comprehensive income (loss) | 129.8 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period (in shares) at Dec. 31, 2020 | | | | | | | | | 1,500,000 | | 831,600,000 | | | | | | | | | | 65,500,000 | | | |
Balance, end of period at Dec. 31, 2020 | 3,295.3 | | | | 3,077.4 | | | | | | $ 8.3 | | 10,427.1 | | | (5,585.2) | | | (326.5) | | $ (1,446.3) | | 217.9 | |
Balance, beginning of period at Jun. 30, 2020 | 79.1 | | 79.1 | | | | | | | | | | | | | | | | | | | | | |
Balance, beginning of period at Jun. 30, 2020 | 715.8 | | $ 715.8 | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Dec. 31, 2020 | 79.5 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Dec. 31, 2020 | 1,002.2 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, beginning of period (in shares) at Sep. 30, 2020 | | | | | | | | | 1,500,000 | | 831,200,000 | | | | | | | | | | 65,500,000 | | | |
Balance, beginning of period at Sep. 30, 2020 | $ 3,425.6 | | | | 3,201.1 | | | | | | $ 8.3 | | 10,434.1 | | | (5,332.9) | | | (462.1) | | $ (1,446.3) | | 224.5 | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | |
Purchase of Class A Common Stock (in shares) | 0 | | | | | | | | | | | | | | | | | | | | | | | |
Exercise of employee stock options and restricted stock units (in shares) | | | | | | | | | | | 400,000 | | | | | | | | | | | | | |
Shares withheld for employee taxes | $ (0.9) | | | | (0.9) | | | | | | | | (0.9) | | | | | | | | | | | |
Share-based compensation expense | 14.4 | | | | 14.4 | | | | | | | | 14.4 | | | | | | | | | | | |
Dividends accrued- Convertible Series B Preferred Stock | (23.2) | | | | (23.2) | | | | | | | | (23.2) | | | | | | | | | | | |
Dividends settled in Shares of Class A Common Stock | | | | $ 0.4 | | | | $ 0.4 | | | | | | | $ 0.4 | | | | | | | | | |
Net income (loss) | (254.8) | | | | (252.3) | | | | | | | | | | | (252.3) | | | | | | | (2.5) | |
Other comprehensive income (loss) | 135.8 | | | | 135.6 | | | | | | | | | | | | | | 135.6 | | | | 0.2 | |
Distribution to noncontrolling interests, net | (4.3) | | | | | | | | | | | | | | | | | | | | | | (4.3) | |
Adjustment of redeemable noncontrolling interests to redemption value | 1.8 | | | | 1.8 | | | | | | | | 1.8 | | | | | | | | | | | |
Equity Investment contribution for share-based compensation | 0.5 | | | | 0.5 | | | | | | | | 0.5 | | | | | | | | | | | |
Balance, end of period (in shares) at Dec. 31, 2020 | | | | | | | | | 1,500,000 | | 831,600,000 | | | | | | | | | | 65,500,000 | | | |
Balance, end of period at Dec. 31, 2020 | 3,295.3 | | | | $ 3,077.4 | | | | | | $ 8.3 | | $ 10,427.1 | | | $ (5,585.2) | | | $ (326.5) | | $ (1,446.3) | | $ 217.9 | |
Balance, beginning of period at Sep. 30, 2020 | 83.1 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, beginning of period at Sep. 30, 2020 | 979 | | | | | | | | | | | | | | | | | | | | | | | |
Redeemable Noncontrolling Interests | | | | | | | | | | | | | | | | | | | | | | | | |
Dividends accrued- Convertible Series B Preferred Stock | 23.2 | | | | | | | | | | | | | | | | | | | | | | | |
Net income | 0.3 | | | | | | | | | | | | | | | | | | | | | | | |
Distribution to noncontrolling interests, net | (2.1) | | | | | | | | | | | | | | | | | | | | | | | |
Adjustment of redeemable noncontrolling interests to redemption value | (1.8) | | | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Dec. 31, 2020 | 79.5 | | | | | | | | | | | | | | | | | | | | | | | |
Balance, end of period at Dec. 31, 2020 | $ 1,002.2 | | | | | | | | | | | | | | | | | | | | | | | |