Goodwill and Intangible Assets - Summary of Changes in the Carrying Value of Goodwill by Reportable Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Carrying value of goodwill by reportable operating segment
Opening balance	$ 7,134.6	$ 7,049.1	$ 7,004.8
Acquisitions	493.5	155.6
Currency and other adjustments	(44.9)	(70.1)	44.3
Closing balance	7,583.2	7,134.6	7,049.1
Accumulated impairment losses	19.4
The Americas Group
Carrying value of goodwill by reportable operating segment
Opening balance	2,256.6	2,256.6	2,256.6
Acquisitions	49.7
Currency and other adjustments
Closing balance	2,306.3	2,256.6	2,256.6
Accumulated impairment losses	10.5
Consumer Brands Group
Carrying value of goodwill by reportable operating segment
Opening balance	1,708.9	1,754.6	1,753.9
Acquisitions	21.3
Currency and other adjustments	(2.8)	(45.7)	0.7
Closing balance	1,727.4	1,708.9	1,754.6
Accumulated impairment losses	8.1
Performance Coatings Group
Carrying value of goodwill by reportable operating segment
Opening balance	3,169.1	3,037.9	2,994.3
Acquisitions	422.5	155.6
Currency and other adjustments	(42.1)	(24.4)	43.6
Closing balance	3,549.5	$ 3,169.1	$ 3,037.9
Accumulated impairment losses	$ 0.8