CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net sales	$ 3,751.9	$ 3,571.6
Cost of sales (including special charges (a))	2,128.1	2,205.2
Selling, general and administrative expenses	1,077.7	990.3
Special (gains) and charges	28.2	24.5
Operating income	517.9	351.6
Other (income) expense	(12.6)	(13.1)
Interest expense, net	71.6	74.2
Income before income taxes	458.9	290.5
Provision for income taxes	42.3	52.4
Net income including noncontrolling interest	416.6	238.1
Net income attributable to noncontrolling interest	4.5	4.7
Net income attributable to Ecolab	$ 412.1	$ 233.4
Earnings attributable to Ecolab per common share
Basic (in dollars per share)	$ 1.44	$ 0.82
Diluted (in dollars per share)	$ 1.43	$ 0.82
Weighted-average common shares outstanding
Basic (in shares)	285.7	284.6
Diluted (in shares)	287.8	285.9
Product and equipment sales
Net sales	$ 2,986.5	$ 2,876.3
Cost of sales (including special charges (a))	1,679.2	1,798.3
Service and lease sales
Net sales	765.4	695.3
Cost of sales (including special charges (a))	$ 448.9	$ 406.9