CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended
	Mar. 28, 2015	Mar. 29, 2014
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Revenues	$ 946.9	$ 1,077.1
Costs and expenses:
Cost of products sold	685.0	775.6
Selling, general and administrative	233.2	267.5
Intangible amortization	7.3	8.3
Special charges, net	6.6	10.0
Operating income	14.8	15.7
Other income, net	0.8	490.6
Interest expense	(16.8)	(19.3)
Interest income	1.1	2.2
Loss on early extinguishment of debt		(32.5)
Income (loss) from continuing operations before income taxes	(0.1)	456.7
Income tax provision	(9.5)	(160.0)
Income (loss) from continuing operations	(9.6)	296.7
Income from discontinued operations, net of tax		0.1
Gain (loss) on disposition of discontinued operations, net of tax	(0.4)	21.0
Income (loss) from discontinued operations, net	(0.4)	21.1
Net income (loss)	(10.0)	317.8
Less: Net loss attributable to noncontrolling interests	(2.9)	(0.4)
Net income (loss) attributable to SPX Corporation common shareholders	(7.1)	318.2
Amounts attributable to SPX Corporation common shareholders:
Income (loss) from continuing operations, net of tax	(6.7)	297.1
Income (loss) from discontinued operations, net of tax	(0.4)	21.1
Net income (loss)	(7.1)	318.2
Basic income (loss) per share of common stock:
Income (loss) from continuing operations attributable to SPX Corporation common shareholders (in dollars per share)	$ (0.17)	$ 6.72
Income (loss) from discontinued operations attributable to SPX Corporation common shareholders (in dollars per share)	$ (0.01)	$ 0.47
Net income (loss) per share attributable to SPX Corporation common shareholders (in dollars per share)	$ (0.18)	$ 7.19
Weighted-average number of common shares outstanding - basic (in shares)	40,503	44,236
Diluted income (loss) per share of common stock:
Income (loss) from continuing operations attributable to SPX Corporation common shareholders (in dollars per share)	$ (0.17)	$ 6.59
Income (loss) from discontinued operations attributable to SPX Corporation common shareholders (in dollars per share)	$ (0.01)	$ 0.47
Net income (loss) per share attributable to SPX Corporation common shareholders (in dollars per share)	$ (0.18)	$ 7.06
Weighted-average number of common shares outstanding - diluted (in shares)	40,503	45,082
Comprehensive income (loss)	$ (140.5)	$ 323.7