SPECIAL (GAINS) AND CHARGES - Restructuring and Non-Restructuring Activity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Mar. 31, 2023	Feb. 28, 2023	Nov. 30, 2022
Other restructuring information
Cash payments			$ 11.4
Special (gains) and charges	$ 36.7	$ 17.8	82.2	$ 45.5
Non-restructuring Special (Gains) and Charges
Accounts payable	1,498.8		1,498.8		$ 1,728.2
Other current liabilities	1,285.0		1,285.0		1,285.9
Special (gains) and charges
Other restructuring information
Restructuring charges incurred, pre-tax	20.0	(0.3)	46.3	0.8
Business combination advisory and legal fees, pre tax	3.0	4.1	11.5	15.0
Other special gains and charges	13.2	14.0	23.3	23.8
Special (gains) and charges	36.7	17.8	82.2	45.5
Non-restructuring Special (Gains) and Charges
Business combination and integration related costs, pre tax	3.0	4.1	11.5	15.0
Business combination and integration related costs, after tax	2.2	3.9	8.6	11.9
Cost of sales
Other restructuring information
Restructuring charges incurred, pre-tax	5.9	2.1	17.2	5.5
Business combination advisory and legal fees, pre tax		4.2		32.7
Business combination advisory and legal fees, after tax		3.9		25.8
Other special gains and charges				16.3
Special (gains) and charges	5.9	7.1	17.2	61.7
Specific legal reserve and related legal charges
Other restructuring information
Other special gains and charges	13.2		23.3
Other special gains and charges, after-tax	9.9		17.6
Other (income) expense
Other restructuring information
Special (gains) and charges		24.8		24.8
Pension settlements and curtailments		24.8		24.8
Pension settlements and curtailments, after tax		18.8		18.8
Russia/Ukraine charges
Other restructuring information
Russia/Ukraine charges	0.5	0.8	1.1	13.1
Charges related to recoverability risk	0.4	0.7	0.9	14.0
Russia/Ukraine charges | Special (gains) and charges
Other restructuring information
Russia/Ukraine charges	0.5		1.1	5.9
Russia/Ukraine charges | Cost of sales
Other restructuring information
Russia/Ukraine charges		0.8		7.2
Product and equipment sales | Cost of sales
Other restructuring information
Other special gains and charges		14.0		40.1
Other special gains and charges, after-tax		10.8		30.5
Institutional Advancement Program
Restructuring
Non-cash net charges	(1.7)		5.0
Other restructuring information
Restructuring charge expected to be incurred, pre-tax	70.0		70.0
Restructuring charge expected to be incurred, after tax	55.0		55.0
Restructuring liability	0.0		0.0		1.9
Restructuring charges incurred to date, pre-tax	60.3		60.3
Restructuring charges incurred to date, after-tax	46.0		46.0
Restructuring charges incurred, pre-tax	1.7	1.8	6.2	3.9
Restructuring charges incurred, after tax	1.2	1.3	4.6	2.9
Cash payments	0.0		3.1
Accelerate 2020 Restructuring Plan
Other restructuring information
Restructuring charge expected to be incurred, pre-tax	254.4		254.4
Restructuring charge expected to be incurred, after tax	198.4		198.4
Restructuring liability					18.1
Cash payments	1.9
Accelerate 2020 Restructuring Plan | Special (gains) and charges
Other restructuring information
Restructuring liability	6.7		6.7
Other Restructuring Plan
Restructuring
Restructuring reserve, period increase (decrease)			(19.3)
Other restructuring information
Restructuring charges incurred, pre-tax		0.6		2.6
Restructuring charges incurred, after tax		$ 0.5		$ 2.0
Prior Year Plans
Other restructuring information
Restructuring liability	3.7		3.7		23.2
Cash payments	0.0		0.2
Combined Plan
Restructuring
Recorded expense (income) and accrual			57.3		67.2
Net cash payments			(66.3)		(5.2)
Non-cash net charges			(13.9)
Reclassification			19.3
Other restructuring information
Restructuring charge expected to be incurred, pre-tax						$ 19.3	$ 195.0
Restructuring charge expected to be incurred, after tax						$ 14.5	$ 150.0
Restructuring liability	58.4		58.4		62.0
Combined Plan | Employee termination costs
Restructuring
Recorded expense (income) and accrual			43.4		67.2
Net cash payments			(66.3)		(5.2)
Reclassification			19.3
Other restructuring information
Restructuring liability	58.4		58.4		$ 62.0
Restructuring charges incurred, pre-tax	24.2		57.3
Restructuring charges incurred, after tax	$ 20.5		46.9
Combined Plan | Asset disposals
Restructuring
Recorded expense (income) and accrual			13.9
Non-cash net charges			$ (13.9)
Europe Program
Other restructuring information
Restructuring charge expected to be incurred, pre-tax								$ 130.0
Restructuring charge expected to be incurred, after tax								$ 110.0