Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net income	$ 104.2	$ 75.3
Other comprehensive income (loss):
Unrealized loss on cash flow hedges arising during the period, net of tax of $(0.2) million	0	(0.3)
Reclassification adjustment from cash flow hedges included in net income, net of tax of less than $0.1 million	0.2	0
Foreign currency translation adjustments, net of tax of $0.2 million and $0.3 million	0.4	0.6
Other comprehensive income	0.6	0.3
Comprehensive income	104.8	75.6
Less: Comprehensive income attributable to noncontrolling interest	0.4	0.3
Comprehensive income attributable to Kansas City Southern and subsidiaries	$ 104.4	$ 75.3