Consolidated Statements of Comprehensive Income (unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net income	$ 233.0	$ 78.8
Derivative financial instruments:
Unrealized losses arising during the period, net of tax benefit of $0.4 and $0.5	(1.2)	(0.7)
Reclassification adjustments for losses included in net income, net of tax benefit of $2.0 and $2.8	4.3	4.6
Defined benefit plans:
Amortization of net actuarial losses, net of tax benefit of $0.1 and $0.5	0.2	0.7
Other comprehensive income (loss), net of tax	3.3	4.6
Comprehensive income	236.3	83.4
Less: comprehensive income attributable to noncontrolling interest	7.3	0.4
Comprehensive income attributable to Trinity Industries, Inc.	$ 229.0	$ 83.0