Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

RESTRUCTURING COSTS - Restructuring Costs by Program (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 59.6	$ 128.7	$ 89.7	$ 133.5
Transformation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs	62.5	131.8	93.7	139.4	$ 156.6
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ (2.9)	$ (3.1)	$ (4.0)	$ (5.9)