REPORTABLE SEGMENT INFORMATION - Reportable Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Net sales	$ 6,047.4	$ 5,146.7	$ 16,918.4	$ 15,182.5
Segment profit	1,095.3	817.7	2,710.8	2,580.1
Interest expense	(101.2)	(83.1)	(282.5)	(249.8)
Administrative expenses and other	(116.9)	(123.1)	(350.1)	(390.6)
Income before income taxes	877.2	611.5	2,078.2	1,939.7
Administrative
Segment Reporting Information [Line Items]
Net sales	1.1	0.5	3.2	1.4
Intersegment transfers
Segment Reporting Information [Line Items]
Net sales	(1,568.9)	(1,195.8)	(4,379.6)	(3,349.3)
Administrative and Eliminations
Segment Reporting Information [Line Items]
Net sales	(1,567.8)	(1,195.3)	(4,376.4)	(3,347.9)
Interest expense	(101.2)	(83.1)	(282.5)	(249.8)
Administrative expenses and other	(116.9)	(123.1)	(350.1)	(390.6)
Income before income taxes	(218.1)	(206.2)	(632.6)	(640.4)
The Americas Group
Segment Reporting Information [Line Items]
Net sales	3,602.7	2,967.0	9,589.9	8,563.5
The Americas Group | Operating Segments
Segment Reporting Information [Line Items]
Net sales	3,602.7	2,967.0	9,589.9	8,563.5
Segment profit	764.1	631.5	1,909.9	1,838.8
Income before income taxes	764.1	631.5	1,909.9	1,838.8
Consumer Brands Group
Segment Reporting Information [Line Items]
Net sales	701.9	646.7	2,139.2	2,156.3
Consumer Brands Group | Operating Segments
Segment Reporting Information [Line Items]
Net sales	2,215.1	1,802.0	6,357.5	5,395.2
Segment profit	94.9	75.8	223.3	342.3
Income before income taxes	94.9	75.8	223.3	342.3
Consumer Brands Group | Intersegment transfers
Segment Reporting Information [Line Items]
Net sales	1,513.2	1,155.3	4,218.3	3,238.9
Performance Coatings Group
Segment Reporting Information [Line Items]
Net sales	1,741.7	1,532.5	5,186.1	4,461.3
Performance Coatings Group | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,797.4	1,573.0	5,347.4	4,571.7
Segment profit	236.3	110.4	577.6	399.0
Income before income taxes	236.3	110.4	577.6	399.0
Performance Coatings Group | Intersegment transfers
Segment Reporting Information [Line Items]
Net sales	$ 55.7	$ 40.5	$ 161.3	$ 110.4