CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS)
Net income including noncontrolling interest	$ 250.1	$ 369.4	$ 794.3	$ 878.9
Foreign currency translation adjustments
Foreign currency translation	(211.5)	(41.5)	(556.3)	(86.3)
Gain (loss) on net investment hedges	(12.0)	7.4	66.8	5.6
Total foreign currency translation adjustments	(223.5)	(34.1)	(489.5)	(80.7)
Derivatives and hedging instruments	7.2	5.0	12.1	0.9
Pension and postretirement benefits
Amortization of net actuarial loss and prior service cost included in net periodic pension and postretirement costs	7.5	2.6	23.6	7.7
Subtotal	(208.8)	(26.5)	(453.8)	(72.1)
Total comprehensive income, including noncontrolling interest	41.3	342.9	340.5	806.8
Less: Comprehensive income attributable to noncontrolling interest	(7.0)	3.2		10.3
Comprehensive income attributable to Ecolab	$ 48.3	$ 339.7	$ 340.5	$ 796.5