CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Revenues	$ 1,216.6	$ 1,241.9	$ 2,349.2	$ 2,392.9
Costs and expenses:
Cost of products sold	873.2	908.6	1,704.1	1,759.8
Selling, general and administrative	247.5	246.5	514.7	517.1
Intangible amortization	8.5	9.4	16.7	18.1
Impairment of intangible assets			2.0
Special charges, net	18.3	8.4	18.7	10.8
Operating income	69.1	69.0	93.0	87.1
Other income (expense), net	(2.3)	(2.8)	(0.1)	19.0
Interest expense	(27.1)	(27.8)	(56.3)	(56.3)
Interest income	1.5	1.6	3.6	2.9
Equity earnings in joint ventures	10.1	6.9	19.2	16.4
Income from continuing operations before income taxes	51.3	46.9	59.4	69.1
Income tax provision	(12.4)	(9.0)	(8.7)	(22.4)
Income from continuing operations	38.9	37.9	50.7	46.7
Income (loss) from discontinued operations, net of tax	(0.8)	10.9	(3.8)	15.2
Gain (loss) on disposition of discontinued operations, net of tax	2.7	(0.6)	(2.5)	(0.9)
Income (loss) from discontinued operations, net of tax	1.9	10.3	(6.3)	14.3
Net income	40.8	48.2	44.4	61.0
Net income attributable to noncontrolling interests	2.0	0.8	3.3	0.1
Net income attributable to SPX Corporation common shareholders	38.8	47.4	41.1	60.9
Amounts attributable to SPX Corporation common shareholders:
Income from continuing operations, net of tax	36.9	37.1	47.4	46.6
Income (loss) from discontinued operations, net of tax	1.9	10.3	(6.3)	14.3
Net income	38.8	47.4	41.1	60.9
Basic income per share of common stock:
Income from continuing operations attributable to SPX Corporation common shareholders (in dollars per share)	$ 0.81	$ 0.74	$ 1.03	$ 0.93
Income (loss) from discontinued operations attributable to SPX Corporation common shareholders (in dollars per share)	$ 0.04	$ 0.21	$ (0.14)	$ 0.28
Net income per share attributable to SPX Corporation common shareholders (in dollars per share)	$ 0.85	$ 0.95	$ 0.89	$ 1.21
Weighted-average number of common shares outstanding - basic (in shares)	45,678	49,954	46,044	50,283
Diluted income per share of common stock:
Income from continuing operations attributable to SPX Corporation common shareholders (in dollars per share)	$ 0.80	$ 0.73	$ 1.01	$ 0.91
Income (loss) from discontinued operations attributable to SPX Corporation common shareholders (in dollars per share)	$ 0.04	$ 0.20	$ (0.13)	$ 0.28
Net income per share attributable to SPX Corporation common shareholders (in dollars per share)	$ 0.84	$ 0.93	$ 0.88	$ 1.19
Weighted-average number of common shares outstanding - diluted (in shares)	45,972	50,909	46,704	51,184
Comprehensive income (loss)	$ 56.4	$ (82.7)	$ (15.8)	$ (4.7)