CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income (loss) attributable to Ecolab	$ 1,091.7	$ 1,129.9	$ (1,205.1)
Net income from continuing operations attributable to noncontrolling interest	17.2	14.1	17.4
Net income from discontinued operations attributable to noncontrolling interest			2.2
Net income (loss) including noncontrolling interest	1,108.9	1,144.0	(1,185.5)
Foreign currency translation adjustments
Foreign currency translation	(333.4)	(10.9)	50.0
Separation of ChampionX			229.9
Gain on net investment hedges	108.3	51.6	(87.7)
Total foreign currency translation adjustments	(225.1)	40.7	192.2
Derivatives and hedging instruments	(1.2)	26.0	(17.0)
Pension and postretirement benefits
Pension and postretirement benefits	130.3	289.7	(78.1)
Subtotal	(96.0)	356.4	97.1
Total comprehensive income (loss), including noncontrolling interest	1,012.9	1,500.4	(1,088.4)
Comprehensive income attributable to noncontrolling interest	13.0	10.9	21.4
Comprehensive income (loss) attributable to Ecolab	$ 999.9	$ 1,489.5	$ (1,109.8)