Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net income	$ 129.1	$ 148.7	$ 232.3	$ 293.6
Other comprehensive income (loss):
Unrealized gain (loss) on interest rate derivative instruments during the period, net of tax of $(2.4) million, $0.5 million, $(4.1) million and $2.1 million, respectively	(7.6)	1.5	(12.7)	6.0
Foreign currency translation adjustments	0.1	(1.2)	0.3	0.0
Other comprehensive income (loss)	(7.5)	0.3	(12.4)	6.0
Comprehensive income	121.6	149.0	219.9	299.6
Less: Comprehensive income attributable to noncontrolling interest	0.4	0.5	0.8	0.9
Comprehensive income attributable to Kansas City Southern and subsidiaries	$ 121.2	$ 148.5	$ 219.1	$ 298.7