Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues:
Manufacturing	$ 580.1	$ 423.5	$ 1,094.5	$ 756.3
Leasing	130.4	119.6	260.2	240.8
Total Revenues	710.5	543.1	1,354.7	997.1
Cost of revenues:
Manufacturing	495.1	350.7	926.0	631.6
Leasing	65.1	65.9	134.5	134.5
Other	7.4	2.1	15.5	6.2
Total cost of revenues	567.6	418.7	1,076.0	772.3
Selling, engineering, and administrative expenses:
Manufacturing	33.4	34.4	67.4	65.9
Leasing	5.6	4.5	11.3	8.9
Other	8.5	6.6	19.1	19.1
Total selling, engineering, and administrative expenses	47.5	45.5	97.8	93.9
Total operating profit	95.4	78.9	180.9	130.9
Other (income) expense:
Interest income	(0.4)	(0.3)	(0.7)	(0.7)
Interest expense	43.8	45.3	88.3	91.0
Other, net	(0.6)	(0.9)	(1.1)	0.9
Nonoperating income (expense), total	42.8	44.1	86.5	91.2
Income before income taxes	52.6	34.8	94.4	39.7
Provision for income taxes	21.0	13.7	37.2	14.3
Net income	31.6	21.1	57.2	25.4
Net income attributable to noncontrolling interest	1.6	2.7	3.0	5.0
Net income attributable to Trinity Industries, Inc.	$ 30.0	$ 18.4	$ 54.2	$ 20.4
Net income attributable to Trinity Industries, Inc. per common share:
Basic	$ 0.37	$ 0.23	$ 0.68	$ 0.26
Diluted	$ 0.37	$ 0.23	$ 0.67	$ 0.26
Weighted average number of shares outstanding:
Basic	77.4	76.7	77.2	76.6
Diluted	77.7	76.9	77.5	76.7
Dividends declared per common share	$ 0.09	$ 0.08	$ 0.17	$ 0.16