CONSOLIDATED STATEMENT OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net sales	$ 3,759.4	$ 3,689.6	$ 7,264.8	$ 7,160.5
Cost of sales (including special charges of (a))	2,208.2	2,146.1	4,297.8	4,218.4
Selling, general and administrative expenses	1,002.7	1,036.8	2,011.0	2,055.1
Special (gains) and charges	49.9	12.1	90.2	38.1
Operating income	498.6	494.6	865.8	848.9
Other (income) expense	(20.9)	(19.6)	(42.1)	(39.0)
Interest expense, net	49.5	56.3	98.9	112.7
Income before income taxes	470.0	457.9	809.0	775.2
Provision for income taxes	97.8	104.3	136.4	173.4
Net income including noncontrolling interest	372.2	353.6	672.6	601.8
Net income attributable to noncontrolling interest	3.6	2.3	7.5	3.2
Net income attributable to Ecolab	$ 368.6	$ 351.3	$ 665.1	$ 598.6
Earnings attributable to Ecolab per common share
Basic (in dollars per share)	$ 1.28	$ 1.22	$ 2.31	$ 2.07
Diluted (in dollars per share)	$ 1.26	$ 1.20	$ 2.28	$ 2.04
Weighted-average common shares outstanding
Basic (in shares)	287.6	288.8	287.9	288.7
Diluted (in shares)	292.1	293.3	292.2	293.0
Product and sold equipment
Net sales	$ 3,092.1	$ 3,060.5	$ 5,978.4	$ 5,920.1
Cost of sales (including special charges of (a))	1,805.8	1,751.6	3,515.8	3,447.8
Service and lease equipment
Net sales	667.3	629.1	1,286.4	1,240.4
Cost of sales (including special charges of (a))	$ 402.4	$ 394.5	$ 782.0	$ 770.6