The following tables present information about industry segments and geographic areas for the years ended December 31, 2012, 2011 and 2010 (in millions):



	2012			2011			2010
Revenues from unrelated entities:
United States electrical construction and facilities services	$	1,211.7		$	1,155.1		$	1,158.9
United States mechanical construction and facilities services	2,296.4			1,917.4			1,720.2
United States facilities services	2,299.8			2,012.0			1,510.5
Total United States operations	5,807.9			5,084.5			4,389.6
United Kingdom construction and facilities services	538.8			529.0			462.4
Other international construction and facilities services	—			—			—
Total worldwide operations	$	6,346.7		$	5,613.5		$	4,852.0

Total revenues:
United States electrical construction and facilities services	$	1,233.5		$	1,161.8		$	1,167.8
United States mechanical construction and facilities services	2,324.2			1,925.4			1,727.2
United States facilities services	2,333.1			2,039.9			1,532.8
Less intersegment revenues	(82.9		)	(42.6		)	(38.2		)
Total United States operations	5,807.9			5,084.5			4,389.6
United Kingdom construction and facilities services	538.8			529.0			462.4
Other international construction and facilities services	—			—			—
Total worldwide operations	$	6,346.7		$	5,613.5		$	4,852.0



	2012			2011			2010
Operating income (loss):
United States electrical construction and facilities services	$	100.7		$	84.6		$	70.4
United States mechanical construction and facilities services	123.5			116.0			132.0
United States facilities services	82.3			69.1			59.3
Total United States operations	306.5			269.7			261.7
United Kingdom construction and facilities services	7.1			9.2			15.7
Other international construction and facilities services	—			—			(0.1		)
Corporate administration	(63.5		)	(63.1		)	(55.9		)
Restructuring expenses	(0.1		)	(1.2		)	(1.8		)
Impairment loss on goodwill and identifiable intangible assets	—			(3.8		)	(246.1		)
Total worldwide operations	250.0			210.8			(26.5		)
Other corporate items:
Interest expense	(7.3		)	(11.3		)	(12.2		)
Interest income	1.6			1.8			2.7
Gain on sale of equity investment	—			—			7.9
Income from continuing operations before income taxes	$	244.2		$	201.4		$	(28.1	)



	2012		2011		2010
Capital expenditures:
United States electrical construction and facilities services	$	3.3	$	2.6	$	3.5
United States mechanical construction and facilities services	7.6		6.5		2.5
United States facilities services	22.7		16.4		11.9
Total United States operations	33.6		25.5		17.9
Canada construction	—		0.1		0.2
United Kingdom construction and facilities services	3.6		3.3		1.0
Other international construction and facilities services	—		—		—
Corporate administration	0.7		0.7		0.3
Total worldwide operations	$	37.9	$	29.6	$	19.4

Depreciation and amortization of Property, plant and equipment:
United States electrical construction and facilities services	$	3.9	$	4.1	$	4.4
United States mechanical construction and facilities services	6.2		4.7		4.6
United States facilities services	17.7		16.1		14.0
Total United States operations	27.8		24.9		23.0
Canada construction	—		0.3		0.6
United Kingdom construction and facilities services	2.6		1.5		1.1
Other international construction and facilities services	—		—		—
Corporate administration	0.8		0.7		0.8
Total worldwide operations	$	31.2	$	27.4	$	25.5



	2012		2011		2010
Costs and estimated earnings in excess of billings on uncompleted contracts:
United States electrical construction and facilities services	$	28.2	$	35.8	$	25.7
United States mechanical construction and facilities services	32.0		36.1		21.0
United States facilities services	17.6		28.4		21.2
Total United States operations	77.8		100.3		67.9
Canada construction	—		—		12.0
United Kingdom construction and facilities services	15.3		14.5		8.4
Other international construction and facilities services	—		—		—
Total worldwide operations	$	93.1	$	114.8	$	88.3

Billings in excess of costs and estimated earnings on uncompleted contracts:
United States electrical construction and facilities services	$	89.9	$	130.7	$	161.5
United States mechanical construction and facilities services	217.9		242.1		196.0
United States facilities services	38.3		33.4		32.4
Total United States operations	346.1		406.2		389.9
Canada construction	—		—		16.2
United Kingdom construction and facilities services	37.4		35.5		50.6
Other international construction and facilities services	—		—		—
Total worldwide operations	$	383.5	$	441.7	$	456.7

Long-lived assets:
United States electrical construction and facilities services	$	14.2	$	15.0	$	16.5
United States mechanical construction and facilities services	268.3		259.7		214.5
United States facilities services	731.5		754.0		500.2
Total United States operations	1,014.0		1,028.7		731.2
Canada construction	—		—		3.5
United Kingdom construction and facilities services	11.5		8.6		4.3
Other international construction and facilities services	—		—		—
Corporate administration	1.5		1.5		1.5
Total worldwide operations	$	1,027.0	$	1,038.8	$	740.5

Goodwill:
United States electrical construction and facilities services	$	3.8	$	3.8	$	3.8
United States mechanical construction and facilities services	201.2		199.1		175.9
United States facilities services	361.6		363.9		227.1
Total United States operations	566.6		566.8		406.8
Canada construction	—		—		—
United Kingdom construction and facilities services	—		—		—
Other international construction and facilities services	—		—		—
Corporate administration	—		—		—
Total worldwide operations	$	566.6	$	566.8	$	406.8



	2012		2011		2010
Total assets:
United States electrical construction and facilities services	$	284.0	$	277.3	$	295.1
United States mechanical construction and facilities services	751.6		727.5		580.4
United States facilities services	1,234.0		1,237.1		862.9
Total United States operations	2,269.6		2,241.9		1,738.4
Canada construction	—		—		103.0
United Kingdom construction and facilities services	214.5		227.0		201.6
Other international construction and facilities services	—		—		—
Corporate administration	623.0		545.2		712.5
Total worldwide operations	$	3,107.1	$	3,014.1	$	2,755.5