Earnings Per Common Share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Computation of basic and diluted net income attributable to Trinity Industries, Inc.

The computation of basic and diluted net income attributable to Trinity Industries, Inc. follows.

	Three Months Ended June 30, 2016						Three Months Ended June 30, 2015
	Income (Loss)			Average Shares	EPS		Income (Loss)			Average Shares	EPS
	(in millions, except per share amounts)
Net income attributable to Trinity Industries, Inc.	$	94.6					$	212.0
Unvested restricted share participation	(2.9		)				(6.5		)
Net income attributable to Trinity Industries, Inc. – basic	91.7			147.8	$	0.62	205.5			150.7	$	1.36
Effect of dilutive securities:
Convertible subordinated notes	—			—			0.1			3.5
Net income attributable to Trinity Industries, Inc. – diluted	$	91.7		147.8	$	0.62	$	205.6		154.2	$	1.33

	Six Months Ended June 30, 2016						Six Months Ended June 30, 2015
	Income (Loss)			Average Shares	EPS		Income (Loss)			Average Shares	EPS
	(in millions, except per share amounts)
Net income attributable to Trinity Industries, Inc.	$	191.8					$	392.2
Unvested restricted share participation	(5.7		)				(12.2		)
Net income attributable to Trinity Industries, Inc. – basic	186.1			148.7	$	1.25	380.0			151.0	$	2.52
Effect of dilutive securities:
Convertible subordinated notes	—			—			0.2			3.3
Net income attributable to Trinity Industries, Inc. – diluted	$	186.1		148.7	$	1.25	$	380.2		154.3	$	2.46