Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues:
Total revenues	$ 4,365.3	$ 3,811.9	$ 2,938.3
Cost of revenues:
Total cost of revenues	3,322.3	3,051.5	2,357.5
Selling, engineering, and administrative expenses:
Total selling, engineering, and administrative expenses	291.3	224.1	194.0
Gains on disposition of property, plant, and equipment:
Net gains on railcar lease fleet sales owned more than one year at the time of sale	20.4	33.5	16.2
Disposition of flood-damaged property, plant, and equipment	0	0.4	17.6
Other	0.8	4.6	6.2
Total gains on disposition of property, plant, and equipment	21.2	38.5	40.0
Total operating profit	772.9	574.8	426.8
Other (income) expense:
Interest income	(2.1)	(1.5)	(1.5)
Interest expense	187.3	194.7	185.3
Other, net	(2.8)	(4.3)	4.0
Total other (income) expense	182.4	188.9	187.8
Income from continuing operations before income taxes	590.5	385.9	239.0
Provision for income taxes:
Current	158.6	7.7	31.7
Deferred	45.8	126.3	60.5
Provision	204.4	134.0	92.2
Net income from continuing operations	386.1	251.9	146.8
Discontinued operations:
Gain on sale of discontinued operations, net of provision for income taxes of $5.4, $-, and $-	7.1	0	0
Income (loss) from discontinued operations, net of provision (benefit) for income taxes of $(0.8), $1.1, and $(0.4)	(0.8)	1.8	(1.1)
Net income	392.4	253.7	145.7
Net income (loss) attributable to noncontrolling interest	16.9	(1.5)	3.5
Net income attributable to Trinity Industries, Inc.	375.5	255.2	142.2
Basic:
Continuing operations (in dollars per share)	$ 4.68	$ 3.18	$ 1.78
Discontinued operations (in dollars per share)	$ 0.08	$ 0.02	$ (0.01)
Basic (in dollars per share)	$ 4.76	$ 3.20	$ 1.77
Diluted:
Continuing operations (in dollars per share)	$ 4.67	$ 3.17	$ 1.78
Discontinued operations (in dollars per share)	$ 0.08	$ 0.02	$ (0.01)
Diluted (in dollars per share)	$ 4.75	$ 3.19	$ 1.77
Weighted average number of shares outstanding:
Basic (in shares)	76.4	77.3	77.5
Diluted (in shares)	76.5	77.5	77.8
Dividends declared per common share (in dollars per share)	$ 0.54	$ 0.42	$ 0.35
Manufacturing
Revenues:
Total revenues	3,719.9	3,167.5	2,386.9
Cost of revenues:
Total cost of revenues	2,990.9	2,701.2	2,067.2
Selling, engineering, and administrative expenses:
Total selling, engineering, and administrative expenses	180.4	143.4	127.1
Leasing
Revenues:
Total revenues	645.4	644.4	551.4
Cost of revenues:
Total cost of revenues	331.4	350.3	290.3
Selling, engineering, and administrative expenses:
Total selling, engineering, and administrative expenses	37.6	29.4	23.4
Other
Selling, engineering, and administrative expenses:
Total selling, engineering, and administrative expenses	$ 73.3	$ 51.3	$ 43.5