RESTRUCTURING COSTS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended		12 Months Ended
	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Oct. 01, 2016	Jun. 30, 2016
Global Integration
Restructuring Cost and Reserve [Line Items]
Remaining accrual		$ 12.9							$ 0.0
Cash expenditures		2.6
Restructuring charges		13.6
Global Integration | Scenario, Forecast
Restructuring Cost and Reserve [Line Items]
Cash expenditures				$ 1.8	$ 3.2	$ 3.2	$ 4.7
Acquisition Integration Program
Restructuring Cost and Reserve [Line Items]
Remaining accrual		36.6							43.4
Cash expenditures		11.3
Pre-tax restructuring and related costs		65.0
Curtailment gain	$ 1.8
Restructuring charges		6.9
Acquisition Integration Program | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred		62.2
Acquisition Integration Program | Scenario, Forecast
Restructuring Cost and Reserve [Line Items]
Cash expenditures				4.7	2.8	16.6	12.5
Organizational Redesign
Restructuring Cost and Reserve [Line Items]
Remaining accrual		19.5							34.5
Cash expenditures		18.7
Restructuring charges		6.1
Organizational Redesign | Minimum
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring and related costs		145.0
Organizational Redesign | Maximum
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring and related costs		180.0
Organizational Redesign | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred		110.6
Organizational Redesign | Corporate | Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred		32.5
Organizational Redesign | Scenario, Forecast
Restructuring Cost and Reserve [Line Items]
Cash expenditures						4.8	14.7
Other Restructuring, Integrate Supply Chain and Selling Activities
Restructuring Cost and Reserve [Line Items]
Remaining accrual		5.1							$ 6.2
Restructuring charges		0.5	$ 3.6
Other Restructuring, Integrate Supply Chain and Selling Activities | Scenario, Forecast
Restructuring Cost and Reserve [Line Items]
Cash expenditures						1.0	4.1
Other Restructuring Programs, Assumed Proctor and Gamble Restructuring
Restructuring Cost and Reserve [Line Items]
Remaining accrual		$ 9.2
Restructuring costs incurred								$ 10.1
Other Restructuring Programs, Assumed Proctor and Gamble Restructuring | Scenario, Forecast
Restructuring Cost and Reserve [Line Items]
Cash expenditures				$ 1.7	$ 0.3	$ 5.8	$ 1.4