SPX (SPXC) 10-Q 30 Apr 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 29, 2014	Apr. 25, 2014
Document and Entity Information	'	'
Entity Registrant Name	'SPX CORP	'
Entity Central Index Key	'0000088205	'
Document Type	'10-Q	'
Document Period End Date	29-Mar-14	'
Amendment Flag	'false	'
Current Fiscal Year End Date	'--12-31	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	43,815,005
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS	'	'
Revenues	$1,069.40	$1,090.50
Costs and expenses:	'	'
Cost of products sold	770.7	797.4
Selling, general and administrative	265.6	252.7
Intangible amortization	8.3	8
Impairment of intangible assets	0	2
Special charges, net	9.7	0.4
Operating income	15.1	30
Other income, net	490.6	2.2
Interest expense	-19.3	-29.2
Interest income	2.2	2.1
Loss on early extinguishment of debt	-32.5	'
Equity earnings in joint ventures	'	9.1
Income from continuing operations before income taxes	456.1	14.2
Income tax (provision) benefit	-159.7	0.4
Income from continuing operations	296.4	14.6
Income from discontinued operations, net of tax	0.4	0.6
Gain (loss) on disposition of discontinued operations, net of tax	21	-5.2
Income (loss) from discontinued operations, net of tax	21.4	-4.6
Net income	317.8	10
Net income (loss) attributable to noncontrolling interests	-0.4	1.3
Net income attributable to SPX Corporation common shareholders	318.2	8.7
Amounts attributable to SPX Corporation common shareholders:	'	'
Income from continuing operations, net of tax	296.8	13.5
Income (loss) from discontinued operations, net of tax	21.4	-4.8
Net income	318.2	8.7
Basic income per share of common stock:	'	'
Income from continuing operations attributable to SPX Corporation common shareholders (in dollars per share)	$6.71	$0.29
Income (loss) from discontinued operations attributable to SPX Corporation common shareholders (in dollars per share)	$0.48	($0.10)
Net income per share attributable to SPX Corporation common shareholders (in dollars per share)	$7.19	$0.19
Weighted-average number of common shares outstanding - basic (in shares)	44,236	46,418
Diluted income per share of common stock:	'	'
Income from continuing operations attributable to SPX Corporation common shareholders (in dollars per share)	$6.58	$0.28
Income (loss) from discontinued operations attributable to SPX Corporation common shareholders (in dollars per share)	$0.48	($0.10)
Net income per share attributable to SPX Corporation common shareholders (in dollars per share)	$7.06	$0.18
Weighted-average number of common shares outstanding - diluted (in shares)	45,082	47,450
Comprehensive income (loss)	$323.70	($75.80)

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 29, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Current assets:	'	'
Cash and equivalents	$486	$691.80
Accounts receivable, net	1,180.70	1,206.70
Inventories, net	547.8	502.2
Other current assets	123.5	104.3
Deferred income taxes	126.2	119.6
Assets of discontinued operations	135.4	148.3
Total current assets	2,599.60	2,772.90
Property, plant and equipment:	'	'
Land	52	45.4
Buildings and leasehold improvements	382.8	384.4
Machinery and equipment	802.7	789.7
Property, plant and equipment, gross	1,237.50	1,219.50
Accumulated depreciation	-550.8	-527.2
Property, plant and equipment, net	686.7	692.3
Goodwill	1,521	1,517
Intangibles, net	921.1	924.7
Other assets	837.8	949.3
TOTAL ASSETS	6,566.20	6,856.20
Current liabilities:	'	'
Accounts payable	488.9	494.6
Accrued expenses	944.4	989.2
Income taxes payable	238.8	73.1
Short-term debt	35.3	26.9
Current maturities of long-term debt	2.4	558.7
Liabilities of discontinued operations	23.3	31.9
Total current liabilities	1,733.10	2,174.40
Long-term debt	1,088.90	1,090
Deferred and other income taxes	389.7	427.2
Other long-term liabilities	991.4	992.6
Total long-term liabilities	2,470	2,509.80
Commitments and contingent liabilities (Note 13)	'	'
SPX Corporation shareholders' equity:	'	'
Common stock (99,936,937 and 44,235,597 issued and outstanding at March 29, 2014, respectively, and 99,801,498 and 45,281,329 issued and outstanding at December 31, 2013, respectively)	1,006.90	1,004.50
Paid-in capital	1,583	1,571.50
Retained earnings	2,605	2,303.10
Accumulated other comprehensive income	293.5	287.5
Common stock in treasury (55,701,340 and 54,520,169 shares at March 29, 2014 and December 31, 2013, respectively)	-3,138.80	-3,008.60
Total SPX Corporation shareholders' equity	2,349.60	2,158
Noncontrolling interests	13.5	14
Total equity	2,363.10	2,172
TOTAL LIABILITIES AND EQUITY	$6,566.20	$6,856.20

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)	Mar. 29, 2014	Dec. 31, 2013
CONDENSED CONSOLIDATED BALANCE SHEETS	'	'
Common stock, shares issued	99,936,937	99,801,498
Common stock, shares outstanding	44,235,597	45,281,329
Common stock in treasury, shares	55,701,340	54,520,169

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013
Cash flows used in operating activities:	'	'
Net income	$317.80	$10
Less: Income (loss) from discontinued operations, net of tax	21.4	-4.6
Income from continuing operations	296.4	14.6
Adjustments to reconcile income from continuing operations to net cash used in operating activities:	'	'
Special charges, net	9.7	0.4
Impairment of intangible assets	0	2
Gain on asset sales	-491.5	'
Loss on early extinguishment of debt	32.5	'
Deferred and other income taxes	-58.3	94.9
Depreciation and amortization	27.5	27.8
Pension and other employee benefits	24.8	0.4
Stock-based compensation	24.7	20.3
Other, net	0.2	1.8
Changes in operating assets and liabilities, net of effects from divestitures:	'	'
Accounts receivable and other assets	-22.4	-19.5
Inventories	-49.7	-57.9
Accounts payable, accrued expenses and other	155.9	-129.5
Cash spending on restructuring actions	-9.1	-6.6
Net cash used in continuing operations	-59.3	-51.3
Net cash used in discontinued operations	-1.3	-15.1
Net cash used in operating activities	-60.6	-66.4
Cash flows from (used in) investing activities:	'	'
Proceeds from asset sales and other	575.7	'
Increase in restricted cash	-0.1	-0.1
Capital expenditures	-11.3	-19
Net cash from (used in) continuing operations	564.3	-19.1
Net cash from (used in) discontinued operations	38.3	-0.3
Net cash from (used in) investing activities	602.6	-19.4
Cash flows used in financing activities:	'	'
Repurchase of senior notes (includes premiums paid of $30.6)	-530.6	'
Borrowings under trade receivables agreement	'	10
Repayments under trade receivables agreement	'	-10
Net repayments under other financing arrangements	-53.9	-4.7
Purchases of common stock	-134.3	-131.4
Minimum withholdings paid on behalf of employees for net share settlements, net of proceeds from the exercise of employee stock options and other	-11.5	-5.7
Financing fees paid	-0.4	'
Dividends paid	-11.7	-0.6
Net cash used in continuing operations	-742.4	-142.4
Net cash used in financing activities	-742.4	-142.4
Change in cash and equivalents due to changes in foreign currency exchange rates	-5.4	-0.8
Net change in cash and equivalents	-205.8	-229
Consolidated cash and equivalents, beginning of period	691.8	984.1
Consolidated cash and equivalents, end of period	$486	$755.10

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS	'
Repurchase of senior notes, premiums paid	$30.60

BASIS_OF_PRESENTATION

BASIS OF PRESENTATION	3 Months Ended
	Mar. 29, 2014
BASIS OF PRESENTATION	'
BASIS OF PRESENTATION	'
	(1)                                 BASIS OF PRESENTATION
	We prepared the condensed consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim reporting. As permitted under those rules and regulations, certain footnotes or other financial information normally required by accounting principles generally accepted in the United States (“GAAP”) can be condensed or omitted. The financial statements represent our accounts after the elimination of intercompany transactions and, in our opinion, include the adjustments (consisting only of normal and recurring items) necessary for their fair presentation.
	In the fourth quarter of 2013, we elected to change our accounting methods for recognizing changes in fair value of plan assets and actuarial gains and losses associated with all our pension and postretirement plans. Under our new accounting methods, we recognize changes in fair value of plan assets and actuarial gains and losses during the fourth quarter of each year, unless earlier remeasurement is required, as a component of net periodic benefit expense.  In connection with these accounting changes, we have revised previously reported amounts to conform to the current methods of accounting. Refer to the consolidated financial statements contained in our 2013 Annual Report on Form 10-K for additional information regarding these changes in accounting methods.
	We account for investments in unconsolidated companies where we exercise significant influence but do not have control using the equity method. In determining whether we are the primary beneficiary of a variable interest entity (“VIE”), we perform a qualitative analysis that considers the design of the VIE, the nature of our involvement and the variable interests held by other parties to determine which party has the power to direct the activities of the VIE that most significantly impact the entity’s economic performance, and which party has the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. We have interests in VIEs, primarily joint ventures, in which we are the primary beneficiary and others in which we are not. Our VIEs are considered immaterial, individually and in aggregate, to our condensed consolidated financial statements.
	On January 7, 2014, we completed the sale of our 44.5% interest in the EGS Electrical Group, LLC and Subsidiaries (“EGS”) joint venture to Emerson Electric Co. for cash proceeds of $574.1. As a result of the sale, we recorded a gain of $491.2 to “Other income, net” during the first quarter of 2014. Prior to the sale, we accounted for our investment in EGS on a three-month lag. As a result of the sale, we recorded no equity earnings related to this investment during the three months ended March 29, 2014, while equity earnings related to this investment totaled $9.2 during the three months ended March 30, 2013.
	Preparing financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. Actual results could differ from these estimates. The unaudited information included in this Quarterly Report on Form 10-Q should be read in conjunction with the consolidated financial statements contained in our 2013 Annual Report on Form 10-K. Interim results are not necessarily indicative of full year results. We have reclassified certain prior year amounts, including the results of discontinued operations, to conform to the current year presentation. Unless otherwise indicated, amounts provided in these Notes pertain to continuing operations. See Note 3 for information on discontinued operations.
	We establish actual interim closing dates using a “fiscal” calendar, which requires our businesses to close their books on the Saturday closest to the end of the first calendar quarter, with the second and third quarters being 91 days in length. Our fourth quarter ends on December 31. The interim closing dates for the first, second and third quarters of 2014 are March 29, June 28 and September 27, compared to the respective March 30, June 29 and September 28, 2013 dates. We had one less day in the first quarter of 2014 and will have one more day in the fourth quarter of 2014 than in the respective 2013 periods.

NEW_ACCOUNTING_PRONOUNCEMENTS

NEW ACCOUNTING PRONOUNCEMENTS	3 Months Ended
	Mar. 29, 2014
NEW ACCOUNTING PRONOUNCEMENTS	'
NEW ACCOUNTING PRONOUNCEMENTS	'
	(2)                                 NEW ACCOUNTING PRONOUNCEMENTS
	The following is a summary of new accounting pronouncements that apply or may apply to our business.
	In March 2013, the Financial Accounting Standards Board (“FASB”) issued an amendment to guidance to resolve the diversity in practice relating to a parent entity’s accounting for the cumulative translation adjustment (“CTA”) upon derecognition of foreign subsidiaries or groups of assets. The amendment requires that any CTA related to the parent entity’s investment in a foreign entity be released into earnings when a sale or transfer of the foreign subsidiary or group of assets results in the complete or substantially complete liquidation of the foreign entity. This amendment is effective for interim and annual reporting periods beginning after December 15, 2013, and shall be applied prospectively. We adopted this guidance on January 1, 2014, with no material impact on our condensed consolidated financial statements.
	In July 2013, the FASB issued an amendment to guidance to resolve the diversity in practice in the presentation of unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward (collectively, a “carryforward”) exists. An unrecognized tax benefit, or portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for the carryforward, except to the extent (i) the carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or (ii) the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose.  In these cases, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. This amendment applies to all entities that have unrecognized tax benefits when a carryforward exists at the reporting date. This amendment is effective for interim and annual reporting periods beginning after December 15, 2013 and must be applied prospectively to all unrecognized tax benefits that exist at the effective date, with retrospective application permitted. We adopted this guidance on January 1, 2014, with no material impact on our condensed consolidated financial statements.
	In April 2014, the FASB issued an amendment to guidance to change the criteria for determining which disposals of components of an entity can be presented as discontinued operations and to modify related disclosure requirements.  Under the amended guidance, a discontinued operation is defined as a disposal of a component or group of components that is disposed of or is classified as held for sale and represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results.  The amendment states that a “strategic shift” could include a disposal of (i) a major geographical area of operations, (ii) a major line of business, (iii) a major equity method investment, or (iv) other major parts of an entity.  The standard no longer precludes presentation as a discontinued operation if there are operations and cash flows of the component that have not been eliminated from the reporting entity’s ongoing operations, or there is significant continuing involvement with a component after its disposal.  This amendment is effective for interim and annual reporting periods beginning after December 15, 2014 and shall be applied prospectively to new disposals and new classifications of disposal groups as held for sale after the effective date.  We have not yet adopted this guidance and do not expect the adoption to have a material impact on our consolidated financial statements.

DISCONTINUED_OPERATIONS

DISCONTINUED OPERATIONS	3 Months Ended
	Mar. 29, 2014
DISCONTINUED OPERATIONS	'
DISCONTINUED OPERATIONS	'
	(3)                                 DISCONTINUED OPERATIONS
	As part of our operating strategy, we regularly review and negotiate potential divestitures, some of which are or may be material.
	We report businesses or asset groups as discontinued operations when, among other things, we terminate the operations of the business or asset group, commit to a plan to divest the business or asset group or we actively begin marketing the business or asset group, and the sale of the business or asset group is deemed probable within the next twelve months.
	The following businesses, which have been sold or for which operations have been terminated, met these requirements and therefore have been reported as discontinued operations for all periods presented:
	Business	Quarter		Quarter of Sale
		Discontinued		or Termination
				of Operations
	Thermal Product Solutions (“TPS”)	Q3 2013		Q1 2014
	Broadcast Antenna System business (“Dielectric”)	Q2 2013		Q2 2013
	Crystal Growing business (“Kayex”)	Q1 2013		Q1 2013
	TPS — Sold for cash consideration of $38.5 and a promissory note of $4.0 during the first quarter of 2014, resulting in a gain, net of taxes, of $21.5. The promissory note is payable in full by the buyer on or before February 28, 2016.
	Dielectric — We sold assets of the business during the second quarter of 2013 for cash consideration of $4.7, resulting in a gain of less than $0.1.
	Kayex — We closed the business during the first quarter of 2013. In connection with the closure, we recorded a loss, net of taxes, of $2.1 during the first quarter of 2013, with such loss related primarily to severance costs and asset impairment charges. During the third and fourth quarters of 2013, we recorded an aggregate gain, net of taxes, of $3.4 associated primarily with the sale of a perpetual license related to certain of the business’s intangible assets. Proceeds from the sale of the perpetual license totaled $6.9.
	In addition to the businesses discussed above, we recognized net losses of $0.5 and $3.1 during the three months ended March 29, 2014 and March 30, 2013, respectively, resulting from adjustments to gains/losses on dispositions of previously discontinued businesses. Refer to the consolidated financial statements contained in our 2013 Annual Report on Form 10-K for the disclosure of all businesses discontinued during 2011, 2012 and 2013.
	The final sales price for certain of the divested businesses is subject to adjustment based on working capital existing at the respective closing dates. The working capital figures are subject to agreement with the buyers or, if we cannot come to agreement with the buyers, an arbitration or other dispute-resolution process. Final agreement of the working capital figures with the buyers for certain of these transactions has yet to occur. In addition, changes in estimates associated with liabilities retained in connection with a business divestiture (e.g., income taxes) may occur. It is possible that the sales price and resulting gains/losses on these and other previous divestitures may be materially adjusted in subsequent periods.
	As of March 29, 2014, there were three businesses remaining in discontinued operations. We are actively pursuing the divestiture of these businesses and anticipate that these divestitures will be completed during 2014.
	For the first three months of 2014 and 2013, income (loss) from discontinued operations and the related income taxes were as follows:
		Three months ended
		March 29,			March 30,
		2014			2013
	Income (loss) from discontinued operations	$	34.5		$	(2.6	)
	Income tax provision	(13.1		)	(2.0		)
	Income (loss) from discontinued operations, net of tax	$	21.4		$	(4.6	)
	For the first three months of 2014 and 2013, results of operations for discontinued operations were as follows:
		Three months ended
		March 29,			March 30,
		2014			2013
	Revenues	$	33.7		$	47.4
	Pre-tax income (loss)	0.6			(0.1		)
	The major classes of assets and liabilities, excluding intercompany balances, of the businesses reported as discontinued operations included in the accompanying condensed consolidated balance sheets are shown below:
		March 29,			December 31,
		2014			2013
	Assets:
	Accounts receivable, net	$	18.2		$	22.8
	Inventories, net	35.2			37.6
	Other current assets	1			1.2
	Property, plant and equipment, net	14.6			16.3
	Goodwill and intangibles, net	66.4			70.4
	Assets of discontinued operations	$	135.4		$	148.3
	Liabilities:
	Accounts payable	$	12.2		$	13.3
	Accrued expenses	11.1			18.6
	Liabilities of discontinued operations	$	23.3		$	31.9
	On April 10, 2014, we sold our SPX Precision Components business for cash proceeds of $62.4. Any gain or loss associated with this transaction is not expected to be significant.

INFORMATION_ON_REPORTABLE_SEGM

INFORMATION ON REPORTABLE SEGMENTS AND OTHER OPERATING SEGMENTS	3 Months Ended
	Mar. 29, 2014
INFORMATION ON REPORTABLE SEGMENTS AND OTHER OPERATING SEGMENTS	'
INFORMATION ON REPORTABLE SEGMENTS AND OTHER OPERATING SEGMENTS	'
	(4)                                 INFORMATION ON REPORTABLE SEGMENTS AND OTHER OPERATING SEGMENTS
	We are a global supplier of highly specialized, engineered solutions with operations in over 35 countries and sales in over 150 countries around the world.  Many of our products and innovative solutions play a role in helping to meet rising global demand for power and energy and processed foods and beverages, particularly in emerging markets.  Our key products include processing systems and equipment for the food and beverage industry, reciprocating pumps used in oil and gas processing, power transformers used by utility companies, and cooling systems for power plants.
	We aggregate certain of our operating segments into our two reportable segments, Flow Technology and Thermal Equipment and Services, while our remaining operating segments, which do not meet the quantitative threshold criteria of the Segment Reporting Topic of the Codification, have been combined within our “All Other” category, which we refer to as Industrial Products and Services and Other. The operating segments in this “All Other” category generally serve industrial end-markets. Industrial Products and Services and Other is not considered a reportable segment.
	The factors considered in determining our aggregated segments are the economic similarity of the businesses, the nature of products sold or services provided, production processes, types of customers and distribution methods. In determining our segments, we apply the threshold criteria of the Segment Reporting Topic of the Codification to operating income or loss of each segment before considering impairment and special charges, pension and postretirement expense/income, stock-based compensation and other indirect corporate expenses. This is consistent with the way our chief operating decision maker evaluates the results of each segment.
	Flow Technology Reportable Segment
	Our Flow Technology reportable segment engineers, designs, manufactures and markets products and solutions used to process, blend, filter, dry, meter and transport fluids with a focus on original equipment installation, including turnkey systems, skidded systems and components, as well as comprehensive aftermarket components and support services. Primary component offerings include engineered pumps, valves, mixers, plate heat exchangers, and dehydration and filtration technologies. The segment primarily serves customers in food and beverage, power and energy and industrial end markets. The segment continues to focus on innovation and new product development, optimizing its global footprint while taking advantage of cross-product integration opportunities and increasing its competitive position in global end markets. Flow Technology’s solutions focus on key business drivers, such as product flexibility, process optimization, sustainability and safety.
	Thermal Equipment and Services Reportable Segment
	Our Thermal Equipment and Services reportable segment engineers, designs, manufactures, installs and services thermal heat transfer products. Primary offerings include dry, evaporative and hybrid cooling systems, rotating and stationary heat exchangers and pollution control systems for the power generation, HVAC and industrial markets, as well as boilers and heating and ventilation products for the residential and commercial markets.
	Industrial Products and Services and Other
	Industrial Products and Services and Other comprises operating segments that design, manufacture and market power transformers, industrial tools and hydraulic units, communications and signal monitoring systems, fare collection systems, and portable cable and pipe locators.
	Corporate Expense
	Corporate expense generally relates to the cost of our Charlotte, NC corporate headquarters and our Asia Pacific center in Shanghai, China.
	Financial data for our reportable segments and other operating segments were as follows:
		Three months ended
		March 29,			March 30,
		2014			2013
	Revenues: (1)
	Flow Technology reportable segment	$	616.7		$	613
	Thermal Equipment and Services reportable segment	279.6			305.1
	Industrial Products and Services and Other	173.1			172.4
	Total revenues	$	1,069.40		$	1,090.50
	Income:
	Flow Technology reportable segment	$	66.2		$	55
	Thermal Equipment and Services reportable segment	9.2			1.7
	Industrial Products and Services and Other	22.4			22.6
	Total income for reportable and other operating segments	97.8			79.3
	Corporate expense	(28.5		)	(30.9		)
	Pension and postretirement (expense) income	(19.8		)	4.3
	Stock-based compensation expense	(24.7		)	(20.3		)
	Impairment of intangible assets	—			(2.0		)
	Special charges, net	(9.7		)	(0.4		)
	Consolidated operating income	$	15.1		$	30
	(1)                       Under the percentage of completion method, we recognized revenues of $274.2 and $342.7 in the three months ended March 29, 2014 and March 30, 2013, respectively. Costs and estimated earnings in excess of billings on contracts accounted for under the percentage of completion method were $284.5 and $285.3 as of March 29, 2014 and December 31, 2013, respectively, and are reported as a component of “Accounts receivable, net” in the condensed consolidated balance sheets. Billings in excess of costs and estimated earnings on uncompleted contracts accounted for under the percentage of completion method were $234.9 and $218.4 as of March 29, 2014 and December 31, 2013, respectively, and are reported as a component of “Accrued expenses” in the condensed consolidated balance sheets.

SPECIAL_CHARGES_NET

SPECIAL CHARGES, NET	3 Months Ended
	Mar. 29, 2014
SPECIAL CHARGES, NET	'
SPECIAL CHARGES, NET	'
	(5)                                 SPECIAL CHARGES, NET
	Special charges, net, for the three months ended March 29, 2014 and March 30, 2013 are described in more detail below:
		Three months ended
		March 29,			March 30,
		2014			2013
	Flow Technology reportable segment	$	8.9		$	(0.6	)
	Thermal Equipment and Services reportable segment	0.1			0.5
	Industrial Products and Services and Other	0.1			—
	Corporate	0.6			0.5
	Total	$	9.7		$	0.4
	Flow Technology reportable segment — Charges for the three months ended March 29, 2014 related primarily to severance and other costs associated with (i) restructuring initiatives at various Flow locations in Europe and (ii) the continuing operational realignment of the segment structure. These actions were taken primarily to reduce the cost base of Clyde Union, as we continue to integrate the business into our Flow Technology reportable segment, and to further align the segment’s operational structure to its key end markets. The credit for the three months ended March 30, 2013 related primarily to a revision of the accruals for certain 2012 restructuring initiatives.
	Thermal Equipment and Services reportable segment — Charges for the three months ended March 29, 2014 related primarily to costs associated with finalizing 2013 restructuring initiatives in Germany. Charges for the three months ended March 30, 2013 related primarily to costs associated with finalizing restructuring initiatives at various locations in China and Europe that commenced in 2012.
	Industrial Products and Services and Other — Charges for the three months ended March 29, 2014 related primarily to costs associated with the completion of a restructuring initiative that commenced in 2013.
	Corporate — Charges for the three months ended March 29, 2014 related primarily to costs associated with our initial efforts to better align our corporate overhead structure with the new operational alignment we implemented in the second half of 2013. Charges for the three months ended March 30, 2013 related primarily to costs associated with the early termination of two building leases and an asset impairment charge of $0.3.
	Expected charges still to be incurred under actions approved as of March 29, 2014 are approximately $2.0.
	The following is an analysis of our restructuring liabilities for the three months ended March 29, 2014 and March 30,
	2013:00:00
		Three months ended
		March 29,			March 30,
		2014			2013
	Balance at beginning of period	$	19		$	16.4
	Special charges (1)	9.7			(0.2		)
	Utilization — cash (2)	(9.5		)	(6.6		)
	Currency translation adjustment and other	0.4			(0.1		)
	Balance at end of period	$	19.6		$	9.5
	(1)                                 The three months ended March 30, 2013 included $0.6 of non-cash charges that did not impact the restructuring liability.
	(2)                                 The three months ended March 29, 2014 included $0.4 of cash utilized to settle retained liabilities of discontinued operations.

INVENTORIES_NET

INVENTORIES, NET	3 Months Ended
	Mar. 29, 2014
INVENTORIES, NET	'
INVENTORIES, NET	'
	(6)                                 INVENTORIES, NET
	Inventories, net, were as follows:
		March 29,			December 31,
		2014			2013
	Finished goods	$	161.8		$	147.5
	Work in process	168.6			165
	Raw materials and purchased parts	237.8			210.6
	Total FIFO cost	568.2			523.1
	Excess of FIFO cost over LIFO inventory value	(20.4		)	(20.9		)
	Total inventories, net	$	547.8		$	502.2
	Inventories include material, labor and factory overhead costs and are reduced, when necessary, to estimated net realizable values. Certain domestic inventories are valued using the last-in, first-out (“LIFO”) method. These inventories were approximately 19% of total inventory at March 29, 2014 and December 31, 2013. Other inventories are valued using the first-in, first-out (“FIFO”) method.

GOODWILL_AND_OTHER_INTANGIBLE_

GOODWILL AND OTHER INTANGIBLE ASSETS	3 Months Ended
	Mar. 29, 2014
GOODWILL AND OTHER INTANGIBLE ASSETS	'
GOODWILL AND OTHER INTANGIBLE ASSETS	'
	(7)                                 GOODWILL AND OTHER INTANGIBLE ASSETS
	Goodwill
	The changes in the carrying amount of goodwill, by reportable segment and other operating segments, were as follows:
					Goodwill					Foreign
					resulting from					currency
		December 31,			business					translation			March 29,
		2013			combinations			Impairments		and other			2014
	Flow Technology reportable segment
	Gross goodwill	$	1,120.20		$	—		$	—	$	3.2		$	1,123.40
	Accumulated impairments	—			—			—		—			—
	Goodwill	1,120.20			—			—		3.2			1,123.40
	Thermal Equipment and Services reportable segment
	Gross goodwill	570			—			—		5.1			575.1
	Accumulated impairments	(399.5		)	—			—		(4.5		)	(404.0		)
	Goodwill	170.5			—			—		0.6			171.1
	Industrial Products and Services and Other
	Gross goodwill	366.8			—			—		0.8			367.6
	Accumulated impairments	(140.5		)	—			—		(0.6		)	(141.1		)
	Goodwill	226.3			—			—		0.2			226.5
	Total
	Gross goodwill	2,057.00			—			—		9.1			2,066.10
	Accumulated impairments	(540.0		)	—			—		(5.1		)	(545.1		)
	Goodwill	$	1,517.00		$	—		$	—	$	4		$	1,521.00
	Other Intangibles
	Identifiable intangible assets were as follows:
		March 29, 2014								December 31, 2013
		Gross						Net		Gross						Net
		carrying			Accumulated			carrying		carrying			Accumulated			carrying
		value			amortization			value		value			amortization			value
	Intangible assets with determinable lives:
	Patents	$	11.4		$	(8.5	)	$	2.9	$	11.5		$	(8.3	)	$	3.2
	Technology	198.1			(55.9		)	142.2		196.3			(52.4		)	143.9
	Customer relationships	414.6			(84.1		)	330.5		412			(78.6		)	333.4
	Other	30.4			(18.6		)	11.8		31			(18.6		)	12.4
		654.5			(167.1		)	487.4		650.8			(157.9		)	492.9
	Trademarks with indefinite lives	433.7			—			433.7		431.8			—			431.8
	Total	$	1,088.20		$	(167.1	)	$	921.1	$	1,082.60		$	(157.9	)	$	924.7
	At March 29, 2014, the net carrying value of intangible assets with determinable lives was $433.4 in the Flow Technology reportable segment, $46.1 in the Thermal Equipment and Services reportable segment and $7.9 in Industrial Products and Services and Other. At March 29, 2014, trademarks with indefinite lives were $288.7 in the Flow Technology reportable segment, $126.4 in the Thermal Equipment and Services reportable segment and $18.6 in Industrial Products and Services and Other.
	We perform our annual goodwill impairment testing during the fourth quarter in conjunction with our annual financial planning process, with such testing based primarily on events and circumstances existing as of the end of the third quarter. In addition, we test goodwill for impairment on a more frequent basis if there are indications of potential impairment. A significant amount of judgment is involved in determining if an indication of impairment has occurred between annual testing dates. Such indication may include: a significant decline in expected future cash flows; a significant adverse change in legal factors or the business climate; unanticipated competition; and a more likely than not expectation of selling or disposing all, or a portion, of a reporting unit.
	We perform our annual trademarks impairment testing during the fourth quarter, or on a more frequent basis if there are indications of potential impairment. The fair values of our trademarks are determined by applying estimated royalty rates to projected revenues, with the resulting cash flows discounted at a rate of return that reflects current market conditions.
	No impairment charges were recorded in the first quarter of 2014. In the first quarter of 2013, we recorded an impairment charge of $2.0 related to the trademarks of Clyde Union. Other changes in the gross carrying value of trademarks and other identifiable intangible assets relate primarily to foreign currency translation.

WARRANTY

WARRANTY	3 Months Ended
	Mar. 29, 2014
WARRANTY	'
WARRANTY	'
	(8)                                 WARRANTY
	The following is an analysis of our product warranty accrual for the periods presented:
		Three months ended
		March 29,			March 30,
		2014			2013
	Balance at beginning of period	$	54.8		$	59.7
	Provisions	5.8			7.2
	Usage	(7.3		)	(9.8		)
	Balance at end of period	53.3			57.1
	Less: Current portion of warranty	41.4			47
	Non-current portion of warranty	$	11.9		$	10.1

EMPLOYEE_BENEFIT_PLANS

EMPLOYEE BENEFIT PLANS	3 Months Ended
	Mar. 29, 2014
EMPLOYEE BENEFIT PLANS	'
EMPLOYEE BENEFIT PLANS	'
	(9)                                 EMPLOYEE BENEFIT PLANS
	During a designated election period in the first quarter of 2014, we offered approximately 7,100 eligible former employees under the SPX U.S. Pension Plan (the “Plan”) a voluntary lump-sum payment option in lieu of a future pension benefit under the Plan. Approximately 38%, or $165.2, of the projected benefit obligation of the Plan was settled as a result of lump-sum payments made to those who accepted the offer. These payments were made during March 2014 and resulted in a settlement charge of $4.6 being reflected in net periodic pension benefit expense for the first quarter of 2014. In addition, in connection with this lump-sum payment action, we remeasured the assets and liabilities of the Plan as of March 29, 2014, which resulted in a charge to net periodic pension benefit expense of $14.8 for the three months then ended.
	In addition to the above losses, net periodic benefit expense for our pension and postretirement plans included the following components:
	Domestic Pension Plans
		Three months ended
		March 29,			March 30,
		2014			2013
	Service cost	$	1.8		$	1.8
	Interest cost	6.7			12
	Expected return on plan assets	(5.5		)	(18.7		)
	Settlement charges, net (1)	0.5			—
	Recognized net actuarial loss (2)	14.8			—
	Total net periodic pension benefit expense (income)	$	18.3		$	(4.9	)
	(1)                                 Consists of the settlement charge of $4.6 associated with the lump-sum payment action that took place during the first quarter of 2014 (see above), net of a $4.1 reduction to the estimated settlement charge that was recorded during the fourth quarter of 2013 in connection with the transfer of the pension obligation for the retirees of the Plan to Massachusetts Mutual Life Insurance Company.
	(2)                                 Represents the actuarial loss resulting from the remeasurement of the assets and obligations of the Plan which was required in connection with the lump-sum payment action noted above.
	Foreign Pension Plans
		Three months ended
		March 29,			March 30,
		2014			2013
	Service cost	$	0.7		$	0.7
	Interest cost	3.5			3.3
	Expected return on plan assets	(4.3		)	(4.4		)
	Total net periodic pension benefit income	(0.1		)	(0.4		)
	Less: Net periodic pension benefit income of discontinued operations	(0.2		)	(0.1		)
	Net periodic pension benefit expense (income) of continuing operations	$	0.1		$	(0.3	)
	Postretirement Plans
		Three months ended
		March 29,			March 30,
		2014			2013
	Service cost	$	0.1		$	0.1
	Interest cost	1.3			1.2
	Amortization of unrecognized prior service credits	—			(0.4		)
	Net periodic postretirement benefit expense	$	1.4		$	0.9
	Employer Contributions
	During the first quarter of 2014, we made contributions to our domestic and foreign pension plans of approximately $0.9, of which $0.8 related to businesses that have been disposed of and had been classified as discontinued operations.

INDEBTEDNESS

INDEBTEDNESS	3 Months Ended
	Mar. 29, 2014
INDEBTEDNESS	'
INDEBTEDNESS	'
	(10)                          INDEBTEDNESS
	The following summarizes our debt activity (both current and non-current) for the three months ended March 29, 2014:
		December 31,									March 29,
		2013		Borrowings		Repayments			Other (5)		2014
	Term loan (1)	$	475	$	—	$	—		$	—	$	475
	6.875% senior notes, maturing in August 2017	600		—		—			—		600
	7.625% senior notes (2)	500		—		(500.0		)	—		—
	Trade receivables financing arrangement (3)	—		—		—			—		—
	Other indebtedness (4)	100.6		8.6		(62.5		)	4.9		51.6
	Total debt	1,675.60		$	8.6	$	(562.5	)	$	4.9	1,126.60
	Less: Short-term debt	26.9									35.3
	Less: Current maturities of long-term debt	558.7									2.4
	Total long-term debt	$	1,090.00								$	1,088.90
	(1)                                 The term loan of $475.0 is repayable in quarterly installments (with aggregate repayments, as a percentage of the initial principal amount of $475.0, together with any additional borrowings of up to $100.0 available to be drawn under the facility on a delayed draw basis through June 21, 2014, of 5.0% annually, beginning with the first fiscal quarter of 2015), with the remaining balance repayable in full on December 23, 2018.
	(2)                                 On February 11, 2014, we completed the redemption of all our 7.625% senior notes due in December 2014 for a total redemption price of $530.6. As a result of the redemption, we recorded a charge of $32.5 to “Loss on early extinguishment of debt” during the first quarter of 2014, which related to premiums paid to redeem the senior notes of $30.6, the write-off of unamortized deferred financing fees of $1.0, and other costs associated with the extinguishment of the senior notes of $0.9.
	(3)                                 Under this arrangement, we can borrow, on a continuous basis, up to $80.0, as available. At March 29, 2014, we had $55.2 of available borrowing capacity under this facility.
	(4)                                 Primarily included capital lease obligations of $16.3 and $73.0 and balances under purchase card programs of $29.8 and $25.4 at March 29, 2014 and December 31, 2013, respectively. During the first quarter of 2014, we purchased our corporate headquarters facility for cash consideration of $60.8, resulting in the extinguishment of the related capital lease obligation.
	(5)                                 “Other” primarily included debt assumed and foreign currency translation on any debt instruments denominated in currencies other than the U.S. dollar.
	Senior Credit Facilities
	A detailed description of our senior credit facilities is included in our 2013 Annual Report on Form 10-K.
	At March 29, 2014, we had $53.6 and $674.7, respectively, of outstanding letters of credit issued under our revolving credit and our foreign credit instrument facilities of our senior credit agreement. In addition, we had $7.3 of letters of credit outstanding under separate arrangements in China and India.
	The weighted-average interest rate of outstanding borrowings under our senior credit facilities was approximately 1.9% at March 29, 2014.
	At March 29, 2014, we were in compliance with all covenants of our senior credit facilities and our senior notes. Restrictions on our ability to repurchase shares or pay dividends are described in our 2013 Annual Report on Form 10-K.

FINANCIAL_INSTRUMENTS

FINANCIAL INSTRUMENTS	3 Months Ended
	Mar. 29, 2014
FINANCIAL INSTRUMENTS	'
FINANCIAL INSTRUMENTS	'
	(11)                          FINANCIAL INSTRUMENTS
	Currency Forward Contracts
	We manufacture and sell our products in a number of countries and, as a result, are exposed to movements in foreign currency exchange rates. Our objective is to preserve the economic value of non-functional currency-denominated cash flows and to minimize the impact of changes as a result of currency fluctuations. Our principal currency exposures relate to the Euro, South African Rand, Chinese Yuan and Great Britain Pound.
	From time to time, we enter into forward contracts to manage the exposure on contracts with forecasted transactions denominated in non-functional currencies and to manage the risk of transaction gains and losses associated with assets/liabilities denominated in currencies other than the functional currency of certain subsidiaries (“FX forward contracts”). In addition, some of our contracts contain currency forward embedded derivatives (“FX embedded derivatives”), because the currency of exchange is not “clearly and closely” related to the functional currency of either party to the transaction. Certain of our FX forward contracts are designated as cash flow hedges. To the extent these derivatives are effective in offsetting the variability of the hedged cash flows, changes in the derivatives’ fair value are not included in current earnings, but are included in accumulated other comprehensive income (“AOCI”). These changes in fair value are reclassified into earnings as a component of revenues or cost of products sold, as applicable, when the forecasted transaction impacts earnings. In addition, if the forecasted transaction is no longer probable, the cumulative change in the derivatives’ fair value is recorded as a component of “Other income, net” in the period in which the transaction is no longer considered probable of occurring. To the extent a previously designated hedging transaction is no longer an effective hedge, any ineffectiveness measured in the hedging relationship is recorded in earnings in the period in which it occurs.
	We had FX forward contracts with an aggregate notional amount of $193.2 and $191.3 outstanding as of March 29, 2014 and December 31, 2013, respectively, with substantially all such contracts scheduled to mature within the next 12 months. We also had FX embedded derivatives with an aggregate notional amount of $141.8 and $145.8 at March 29, 2014 and December 31, 2013, respectively. The unrealized losses, net of taxes, recorded in AOCI related to FX forward contracts were $1.0 as of March 29, 2014 and December 31, 2013. We anticipate reclassifying the unrealized loss as of March 29, 2014 to income over the next 12 months.
	Commodity Contracts
	From time to time, we enter into commodity contracts to manage the exposure on forecasted purchases of commodity raw materials. At March 29, 2014 and December 31, 2013, the outstanding notional amount of commodity contracts was 4.8 and 3.4 pounds of copper, respectively. We designate and account for these contracts as cash flow hedges and, to the extent these commodity contracts are effective in offsetting the variability of the forecasted purchases, the change in fair value is included in AOCI. We reclassify AOCI associated with our commodity contracts to cost of products sold when the forecasted transaction impacts earnings. As of March 29, 2014 and December 31, 2013, the fair value of these contracts was $0.9 (current liability) and $0.4 (current asset), respectively. The unrealized gain (loss), net of taxes, recorded in AOCI was $(0.5) and $0.2 as of March 29, 2014 and December 31, 2013, respectively. We anticipate reclassifying the unrealized loss as of March 29, 2014 to income over the next 12 months.
	The following summarizes the gross and net fair values of our FX forward and commodity contracts by counterparty at March 29, 2014 and December 31, 2013, respectively:
		March 29, 2014									December 31, 2013
		Gross assets			Gross liabilities			Net assets /			Gross assets		Gross liabilities			Net assets /
								liabilities								liabilities
	FX forward contracts:
	Counterparty A	$	0.6		$	(0.1	)	$	0.5		$	0.7	$	(0.1	)	$	0.6
	Counterparty B	0.2			—			0.2			0.1		(0.4		)	(0.3		)
	Aggregate of other counterparties	0.2			(0.1		)	0.1			0.3		—			0.3
	Totals (1)	$	1		$	(0.2	)	$	0.8		$	1.1	$	(0.5	)	$	0.6
	Commodity contracts:
	Counterparty A (2)	$	—		$	(0.9	)	$	(0.9	)	$	0.4	$	—		$	0.4
	(1)                       We enter into arrangements designed to provide the right of setoff in the event of counterparty default or insolvency, and have elected to offset the fair values of our qualifying financial instruments in our condensed consolidated balance sheets. Amounts presented in our condensed consolidated balance sheets are as follows:
		March 29,			December 31,
		2014			2013
	Designated as hedging instruments:
	Other current assets	$	0.2		$	0.3
	Accrued expenses	—			—
		0.2			0.3
	Not designated as hedging instruments:
	Other current assets	1.1			0.6
	Accrued expenses	(0.5		)	(0.3		)
		0.6			0.3
	Net fair value of FX forward contracts	$	0.8		$	0.6
	(2)                       Related contracts are designated as hedging instruments. Net amounts at March 29, 2014 and December 31, 2013 are recorded in “Accrued expenses” and “Other current assets,” respectively.
	The following summarizes the fair value of our FX embedded derivative instruments, which are not designated as hedging instruments, and the related balance sheet classification as of March 29, 2014 and December 31, 2013:
		March 29,			December 31,
	Balance Sheet Classification	2014			2013
	Other current assets	$	0.6		$	0.7
	Accrued expenses	(6.7		)	(6.5		)
	Other long-term liabilities	(1.5		)	(2.1		)
		$	(7.6	)	$	(7.9	)
	The following summarizes the pre-tax gain (loss) recognized in AOCI resulting from derivative financial instruments designated as cash flow hedging relationships for the three months ended March 29, 2014 and March 30, 2013:
		Three months ended
		March 29,			March 30,
		2014			2013
	FX forward contracts	$	0.3		$	6.9
	Commodity contracts	(1.3		)	(1.0		)
		$	(1.0	)	$	5.9
	The following summarizes the pre-tax loss related to derivative financial instruments designated as cash flow hedging relationships reclassified from AOCI to income through “Revenues” for FX forward contracts and “Cost of products sold” for commodity contracts for the three months ended March 29, 2014 and March 30, 2013:
		Three months ended
		March 29,			March 30,
		2014			2013
	FX forward contracts	$	—		$	(0.6	)
	Commodity contracts	(0.1		)	—
		$	(0.1	)	$	(0.6	)
	The following summarizes the gain (loss) recognized in “Other income, net” for the three months ended March 29, 2014 and March 30, 2013 related to derivative financial instruments not designated as cash flow hedging relationships:
		Three months ended
		March 29,			March 30,
		2014			2013
	FX forward contracts	$	0.4		$	(3.0	)
	FX embedded derivatives	(2.2		)	3.1
		$	(1.8	)	$	0.1

EQUITY_AND_STOCKBASED_COMPENSA

EQUITY AND STOCK-BASED COMPENSATION	3 Months Ended
	Mar. 29, 2014
EQUITY AND STOCK-BASED COMPENSATION	'
EQUITY AND STOCK-BASED COMPENSATION	'
	(12)                          EQUITY AND STOCK-BASED COMPENSATION
	Income Per Share
	The following table sets forth the number of weighted-average shares outstanding used in the computation of basic and diluted income per share:
		Three months ended
		March 29,		March 30,
		2014		2013
	Weighted-average number of common shares used in basic income per share	44.236		46.418
	Dilutive securities — Employee stock options, restricted stock shares and restricted stock units	0.846		1.032
	Weighted-average number of common shares and dilutive securities used in diluted income per share	45.082		47.45
	There were no stock options outstanding during the three months ended March 29, 2014. All stock options outstanding were included in the computation of diluted income per share during the three months ended March 30, 2013.
	All unvested restricted stock shares and restricted stock units were included in the computation of diluted income per share at March 29, 2014 because required market thresholds for vesting (as discussed in our 2013 Annual Report on Form 10-K) were met. The total number of unvested restricted stock shares and restricted stock units that were not included in the computation of diluted income per share because required market thresholds for vesting were not met was 0.225 at March 30, 2013.
	Stock-based Compensation
	Stock-based compensation awards may be granted to certain eligible employees or non-employee directors under the 2002 Stock Compensation Plan, or to non-employee directors under the 2006 Non-Employee Director’s Stock Incentive Plan. A detailed description of the awards granted under these plans is included in our 2013 Annual Report on Form 10-K.
	Compensation expense within income from continuing operations related to restricted stock shares and restricted stock units totaled $24.7 and $20.3 for the three months ended March 29, 2014 and March 30, 2013, respectively, with a related tax benefit of $8.9 and $7.3 for the three months ended March 29, 2014 and March 30, 2013, respectively.
	We use the Monte Carlo simulation model valuation technique to determine fair value of our restricted stock shares and restricted stock units that contain a “market condition.” The Monte Carlo simulation model utilizes multiple input variables that determine the probability of satisfying the market condition stipulated in the award and calculates the fair value of each restricted stock share and restricted stock unit award. We used the following assumptions to determine the fair value of the awards granted on the dates indicated below:
								Correlation between total
		Annual expected						shareholder return for SPX
		stock price		Annual expected		Risk-free		and the applicable S&P
		volatility		dividend yield		interest rate		Composite Index
	January 2, 2014:
	SPX Corporation	33.7	%	1.02	%	0.76	%	0.7631
	S&P Composite 1500 Industrials Index	19.9	%	n/a		0.76	%
	April 1, 2013:
	SPX Corporation	35.5	%	1.29	%	0.33	%	0.7668
	S&P Composite 1500 Industrials Index	21.2	%	n/a		0.33	%
	January 2, 2013:
	SPX Corporation	36.3	%	1.42	%	0.37	%	0.7778
	S&P Composite 1500 Industrials Index	22.4	%	n/a		0.37	%
	Annual expected stock price volatility is based on the three-year historical volatility. The annual expected dividend yield is based on annual expected dividend payments and the stock price on the date of grant. The average risk-free interest rate is based on the one-year through three-year daily treasury yield curve rate as of the grant date.
	Restricted Stock Share and Restricted Stock Unit Awards
	The following table summarizes the restricted stock share and restricted stock unit activity from December 31, 2013 through March 29, 2014:
				Weighted-Average
		Unvested Restricted Stock Shares		Grant-Date Fair
		and Restricted Stock Units		Value Per Share
	Outstanding at December 31, 2013	1.537		$	58.39
	Granted	0.51		86.7
	Vested	(0.537	)	58.57
	Forfeited	(0.226	)	62.15
	Outstanding at March 29, 2014	1.284		68.78
	As of March 29, 2014, there was $38.7 of unrecognized compensation cost related to restricted stock share and restricted stock unit compensation arrangements. We expect this cost to be recognized over a weighted-average period of 2.3 years.
	Accumulated Other Comprehensive Income
	The changes in the components of accumulated other comprehensive income, net of tax, for the three months ended March 29, 2014 were as follows:
		Foreign			Net Unrealized			Net Unrealized			Pension and			Total
		Currency			Losses on			Losses on			Postretirement
		Translation			Qualifying Cash			Available-for-			Liability Adjustment
		Adjustment			Flow Hedges (1)			Sale Securities			and Other (2)
	Balance at beginning of period	$	296.8		$	(0.8	)	$	(3.7	)	$	(4.8	)	$	287.5
	Other comprehensive income (loss) before reclassifications	(2.0		)	(0.8		)	3.8			0.2			1.2
	Amounts reclassified from accumulated other comprehensive income	—			0.1			(0.3		)	5			4.8
	Current-period other comprehensive income (loss)	(2.0		)	(0.7		)	3.5			5.2			6
	Balance at end of period	$	294.8		$	(1.5	)	$	(0.2	)	$	0.4		$	293.5
	(1)                       Net of tax benefit of $1.2 and $1.0 as of March 29, 2014 and December 31, 2013, respectively.
	(2)                       Net of tax (provision) benefit of $(0.1) and $2.2 as of March 29, 2014 and December 31, 2013, respectively. The balance as of December 31, 2013 primarily includes $(5.0), net of tax, related to our share of the pension liability adjustment for EGS as of December 31, 2013. In connection with the sale of our interest in EGS during the first quarter of 2014, as described in Note 1, we recognized our share of the pension liability adjustment for EGS as a component of the gain on sale of our investment interest.
	The changes in the components of accumulated other comprehensive income, net of tax, for the three months ended March 30, 2013 were as follows:
		Foreign			Net Unrealized			Net Unrealized			Pension and			Total
		Currency			Losses on			Losses on			Postretirement
		Translation			Qualifying Cash			Available-for-			Liability Adjustment
		Adjustment			Flow Hedges (1)			Sale Securities			and Other (2)
	Balance at beginning of period	$	293.8		$	(3.3	)	$	(3.1	)	$	(2.6	)	$	284.8
	Other comprehensive income (loss) before reclassifications	(87.2		)	3.6			(0.5		)	(1.2		)	(85.3		)
	Amounts reclassified from accumulated other comprehensive income	—			0.4			—			(0.3		)	0.1
	Current-period other comprehensive income (loss)	(87.2		)	4			(0.5		)	(1.5		)	(85.2		)
	Balance at end of period	$	206.6		$	0.7		$	(3.6	)	$	(4.1	)	$	199.6
(1)                       Net of tax benefit of $2.5 as of December 31, 2012.
(2)                       Net of tax benefit of $1.8 and $1.2 as of March 30, 2013 and December 31, 2012, respectively. Includes $(5.0) and $(3.8) related to our share of the pension liability adjustment for EGS as of March 30, 2013 and December 31, 2012, respectively.
The following summarizes amounts reclassified from each component of accumulated comprehensive loss for the three months ended March 29, 2014 and March 30, 2013:
	Amount Reclassified from AOCI
	Three months ended						Affected Line Item in the Condensed
	March 29, 2014			March 30, 2013			Consolidated Statements of Operations
Losses on qualifying cash flow hedges:
Commodity contracts	$	0.1		$	—		Cost of products sold
FX forward contracts	—			0.6			Revenues
Pre-tax	0.1			0.6
Income taxes	—			(0.2		)
	$	0.1		$	0.4
Gain on available-for-sale securities	$	0.3		$	—		Other income, net
Losses (gains) on pension and postretirement items:
Recognition of our share of the pension liability adjustment for EGS	$	7.4		$	—		Other income, net
Amortization of unrecognized prior service credits	—			(0.4		)	Selling, general and administrative
Pre-tax	7.4			(0.4		)
Income taxes	(2.4		)	0.1
	$	5		$	(0.3	)
Common Stock in Treasury
On December 18, 2013, we entered into a written trading plan under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended, to facilitate the repurchase of up to $500.0 of shares of our common stock on or before December 31, 2014, in accordance with a share repurchase program authorized by our Board of Directors.  During the first quarter of 2014, we repurchased 1.316 shares of our common stock for $134.3 under this trading plan.  We repurchased 0.115 shares of our common stock for $11.2 under this trading plan during December 2013.
During the first quarter of 2013, we repurchased 1.514 shares of our common stock for $104.4, which completed the repurchases under a trading plan that we entered into during 2012. In addition, we repurchased 0.333 shares of our common stock on the open market for $27.0 during the first quarter of 2013.
During the three months ended March 29, 2014, “Common stock in treasury” was decreased by the settlement of restricted stock units issued from treasury stock of $12.0 and increased by $7.9 for common stock that was surrendered by recipients of restricted stock as a means of funding the related minimum income tax withholding requirements.
During the three months ended March 30, 2013, “Common stock in treasury” was decreased by the settlement of restricted stock units issued from treasury stock of $13.6 and increased by $9.0 for common stock that was surrendered by recipients of restricted stock as a means of funding the related minimum income tax withholding requirements.
Dividends
On February 10, 2014, we effected a dividend increase effective with the first quarterly dividend payment of 2014. Our annual dividend is now $1.50 per share (previously $1.00 per share), payable quarterly. The dividends declared during the first quarters of 2014 and 2013 totaled $16.3 and $11.4, respectively. We paid first quarter dividends on April 2, 2014 and April 2, 2013.
Changes in Equity
A summary of the changes in equity for the three months ended March 29, 2014 and March 30, 2013 is provided below:
	March 29, 2014									March 30, 2013
	SPX									SPX
	Corporation									Corporation
	Shareholders’			Noncontrolling			Total			Shareholders’			Noncontrolling			Total
	Equity			Interests			Equity			Equity			Interests			Equity
Equity, beginning of period	$	2,158.00		$	14		$	2,172.00		$	2,224.20		$	11.3		$	2,235.50
Net income (loss)	318.2			(0.4		)	317.8			8.7			1.3			10
Net unrealized gains (losses) on qualifying cash flow hedges, net of tax (provision) benefit of $0.2 and $(2.5) for the three months ended March 29, 2014 and March 30, 2013, respectively	(0.7		)	—			(0.7		)	4			—			4
Net unrealized gains (losses) on available-for-sale securities	3.5			—			3.5			(0.5		)	—			(0.5		)
Pension liability adjustment, net of tax (provision) benefit of $(2.3) and $0.7 for the three months ended March 29, 2014 and March 30, 2013, respectively	5.2			—			5.2			(1.5		)	—			(1.5		)
Foreign currency translation adjustments	(2.0		)	(0.1		)	(2.1		)	(87.2		)	(0.6		)	(87.8		)
Total comprehensive income (loss), net	324.2			(0.5		)	323.7			(76.5		)	0.7			(75.8		)
Dividends declared	(16.3		)	—			(16.3		)	(11.4		)	—			(11.4		)
Exercise of stock options and other incentive plan activity, including related tax benefit of $8.8 and $5.8 for the three months ended March 29, 2014 and March 30, 2013, respectively	13.6			—			13.6			10.1			—			10.1
Amortization of restricted stock and restricted stock unit grants	24.7			—			24.7			20.3			—			20.3
Restricted stock and restricted stock unit vesting, net of tax withholdings	(20.3		)	—			(20.3		)	(20.5		)	—			(20.5		)
Common stock repurchases	(134.3		)	—			(134.3		)	(131.4		)	—			(131.4		)
Other changes in noncontrolling interests	—			—			—			—			(0.2		)	(0.2		)
Equity, end of period	$	2,349.60		$	13.5		$	2,363.10		$	2,014.80		$	11.8		$	2,026.60

CONTINGENT_LIABILITIES_AND_OTH

CONTINGENT LIABILITIES AND OTHER MATTERS	3 Months Ended
	Mar. 29, 2014
CONTINGENT LIABILITIES AND OTHER MATTERS	'
CONTINGENT LIABILITIES AND OTHER MATTERS	'
	(13)                          CONTINGENT LIABILITIES AND OTHER MATTERS
	General
	Numerous claims, complaints and proceedings arising in the ordinary course of business, including those relating to litigation matters (e.g., class actions, derivative lawsuits and contracts, intellectual property and competitive claims), environmental matters, and risk management matters (e.g., product and general liability, automobile, and workers’ compensation claims), have been filed or are pending against us and certain of our subsidiaries. Additionally, we may become subject to significant claims of which we are currently unaware, or the claims of which we are aware may result in us incurring a significantly greater liability than we anticipate. This may also be true in connection with past or future acquisitions. While we maintain property, cargo, auto, product, general liability, environmental, and directors’ and officers’ liability insurance and have acquired rights under similar policies in connection with acquisitions that we believe cover a portion of these claims, this insurance may be insufficient or unavailable (e.g., because of insurer insolvency) to protect us against potential loss exposures. Also, while we believe we are entitled to indemnification from third parties for some of these claims, these rights may be insufficient or unavailable to protect us against potential loss exposures. We believe, however, that our accruals related to these items are sufficient and that these items and our rights to available insurance and indemnity will be resolved without material effect, individually or in the aggregate, on our financial position, results of operations and cash flows. These accruals, which are determined in accordance with the Contingencies Topic of the Codification, totaled $611.4 (including $566.6 for risk management matters) and $610.1 (including $565.0 for risk management matters) at March 29, 2014 and December 31, 2013, respectively. Of these amounts, $561.4 and $561.8 are included in “Other long-term liabilities” within our condensed consolidated balance sheets at March 29, 2014 and December 31, 2013, respectively, with the remainder included in “Accrued expenses.” It is reasonably possible that our ultimate liability for these items could exceed the amount of the recorded accruals; however, we believe the estimated amount of any potential additional liability would not have a material effect, individually or in the aggregate, on our financial position, results of operations or cash flows.
	We had insurance recovery assets related to risk management matters of $496.7 at March 29, 2014 and December 31, 2013, included in “Other assets” within our condensed consolidated balance sheets.
	Litigation Matters
	We are subject to litigation matters that arise in the normal course of business. We believe these matters are either without merit or of a kind that should not have a material effect, individually or in the aggregate, on our financial position, results of operations or cash flows.
	Environmental Matters
	Our operations and properties are subject to federal, state, local and foreign regulatory requirements relating to environmental protection. It is our policy to comply fully with all applicable requirements. As part of our effort to comply, we have a comprehensive environmental compliance program that includes environmental audits conducted by internal and external independent professionals, as well as regular communications with our operating units regarding environmental compliance requirements and anticipated regulations. Based on current information, we believe that our operations are in substantial compliance with applicable environmental laws and regulations, and we are not aware of any violations that could have a material effect, individually or in the aggregate, on our business, financial condition, and results of operations or cash flows. At March 29, 2014, we had liabilities for site investigation and/or remediation at 91 sites (94 sites at December 31, 2013) that we own or control. In addition, while we believe that we maintain adequate accruals to cover the costs of site investigation and/or remediation, we cannot provide assurance that new matters, developments, laws and regulations, or stricter interpretations of existing laws and regulations will not materially affect our business or operations in the future.
	Our environmental accruals cover anticipated costs, including investigation, remediation, and operation and maintenance of clean-up sites. Our estimates are based primarily on investigations and remediation plans established by independent consultants, regulatory agencies and potentially responsible third parties. Accordingly, our estimates may change based on future developments, including new or changes in existing environmental laws or policies, differences in costs required to complete anticipated actions from estimates provided, future findings of investigation or remediation actions, or alteration to the expected remediation plans. It is our policy to revise an estimate once it becomes probable and the amount of change can be reasonably estimated. We generally do not discount our environmental accruals and do not reduce them by anticipated insurance recoveries. We take into account third-party indemnification from financially viable parties in determining our accruals where there is no dispute regarding the right to indemnification.
	In the case of contamination at offsite, third-party disposal sites, as of March 29, 2014, we have been notified that we are potentially responsible and have received other notices of potential liability pursuant to various environmental laws at 25 sites (23 sites at December 31, 2013) at which the liability has not been settled, of which 6 sites (6 sites at December 31, 2013) have been active in the past few years.  These laws may impose liability on certain persons that are considered jointly and severally liable for the costs of investigation and remediation of hazardous substances present at these sites, regardless of fault or legality of the original disposal. These persons include the present or former owners or operators of the site and companies that generated, disposed of or arranged for the disposal of hazardous substances at the site. We are considered a “de minimis” potentially responsible party at most of the sites, and we estimate that our aggregate liability, if any, related to these sites is not material to our condensed consolidated financial statements. We conduct extensive environmental due diligence with respect to potential acquisitions, including environmental site assessments and such further testing as we may deem warranted. If an environmental matter is identified, we estimate the cost and either establish a liability, purchase insurance or obtain an indemnity from a financially sound seller; however, in connection with our acquisitions or dispositions, we may assume or retain significant environmental liabilities, some of which we may be unaware. The potential costs related to these environmental matters and the possible impact on future operations are uncertain due in part to the complexity of government laws and regulations and their interpretations, the varying costs and effectiveness of various clean-up technologies, the uncertain level of insurance or other types of recovery, and the questionable level of our responsibility. We record a liability when it is both probable and the amount can be reasonably estimated.
	In our opinion, after considering accruals established for such purposes, the cost of remedial actions for compliance with the present laws and regulations governing the protection of the environment are not expected to have a material impact, individually or in the aggregate, on our financial position, results of operations or cash flows.
	Risk Management Matters
	We are self-insured for certain of our workers’ compensation, automobile, product and general liability, disability and health costs, and we believe that we maintain adequate accruals to cover our retained liability. Our accruals for risk management matters are determined by us, are based on claims filed and estimates of claims incurred but not yet reported, and generally are not discounted. We consider a number of factors, including third-party actuarial valuations, when making these determinations. We maintain third-party stop-loss insurance policies to cover certain liability costs in excess of predetermined retained amounts. This insurance may be insufficient or unavailable (e.g., because of insurer insolvency) to protect us against loss exposure.
	Collaborative Arrangements
	Collaborative arrangements are defined as a contractual arrangement in which the parties are (1) active participants to the arrangements and (2) exposed to significant risks and rewards that depend on the commercial success of the endeavor. Costs incurred and revenues generated from transactions with third parties are required to be reported by the collaborators on the appropriate line item in their respective statements of operations.
	We enter into consortium arrangements for certain projects within our Thermal Equipment and Services reportable segment. Under such arrangements, each consortium member is responsible for performing certain discrete items of work within the total scope of the contracted work and the consortium expires when all contractual obligations are completed. The revenues for these discrete items of work are defined in the contract with the project owner and each consortium member bearing the profitability risk associated with its own work. Our consortium arrangements typically provide that each consortium member assumes responsibility for its share of any damages or losses associated with the project; however, the use of a consortium arrangement typically results in joint and several liability for the consortium members. If responsibility cannot be determined or a consortium member defaults, then the consortium members are responsible according to their share of the contract value. Within our consolidated financial statements, we account for our share of the revenues and profits under the consortium arrangements. As of March 29, 2014, our share of the aggregate contract value on open consortium arrangements was $142.3 (of which approximately 88% had been recognized as revenue), and the aggregate contract value on open consortium arrangements was $447.9. As of December 31, 2013, our share of the aggregate contract value on open consortium arrangements was $139.3 (of which approximately 87% had been recognized as revenue), and the aggregate contract value on open consortium arrangements was $433.8. At March 29, 2014 and December 31, 2013, we recorded liabilities of $0.7 and $1.7, respectively, representing the estimated fair value of our potential obligation under the joint and several liability provisions associated with the consortium arrangements.

INCOME_TAXES

INCOME TAXES	3 Months Ended
	Mar. 29, 2014
INCOME TAXES	'
INCOME TAXES	'
	(14)                          INCOME TAXES
	Unrecognized Tax Benefits
	As of March 29, 2014, we had gross unrecognized tax benefits of $119.3 (net unrecognized tax benefits of $78.1), of which $77.5, if recognized, would impact our effective tax rate from continuing operations.
	We classify interest and penalties related to unrecognized tax benefits as a component of our income tax provision. As of March 29, 2014, gross accrued interest excluded from the amounts above totaled $13.3 (net accrued interest of $9.3). Penalties excluded from the amounts above were $7.1 as of March 29, 2014.
	Based on the outcome of certain examinations or as a result of the expiration of statute of limitations for certain jurisdictions, we believe that within the next 12 months it is reasonably possible that our previously unrecognized tax benefits could decrease by approximately $50.0 to $60.0. The previously unrecognized tax benefits relate to a variety of tax issues, including tax matters relating to deemed income inclusions, transfer pricing, and various state matters.
	Other Tax Matters
	For the three months ended March 29, 2014, we recorded an income tax provision of $159.7 on $456.1 of pre-tax income from continuing operations, resulting in an effective tax rate of 35.0%.  This compares to an income tax benefit for the three months ended March 30, 2013 of $0.4 on $14.2 of pre-tax income from continuing operations, resulting in an effective tax rate of (2.8)%. The most significant item impacting the effective tax rate for the first quarter of 2014 was the U.S. income taxes that were provided in connection with the $491.2 gain that was recorded during the quarter on the sale of our interest in EGS. The effective tax rate for the first quarter of 2013 was impacted favorably by income tax benefits of (i) $3.2 associated with the Research and Experimentation Credit generated in 2012 and (ii) $2.0 related to various foreign tax credits.
	We perform reviews of our income tax positions on a continuous basis and accrue for potential uncertain positions when we determine that an uncertain position meets the criteria of the Income Taxes Topic of the Codification. Accruals for these uncertain tax positions are recorded in “Income taxes payable” and “Deferred and other income taxes” in the accompanying condensed consolidated balance sheets based on the expectation as to the timing of when the matters will be resolved. As events change and resolutions occur, these accruals are adjusted, such as in the case of audit settlements with taxing authorities.
	Our federal income tax returns for the 2008 through 2012 tax years are subject to examination. The IRS is currently auditing the 2008 to 2011 tax return years. With regard to all open tax years, we believe any contingencies are adequately provided for.
	State income tax returns generally are subject to examination for a period of three to five years after filing the respective tax returns. The impact on such tax returns of any federal changes remains subject to examination by various states for a period of up to one year after formal notification to the states. We have various state income tax returns in the process of examination, administrative appeal or litigation. We believe any uncertain tax positions related to these examinations have been adequately provided for.
	We have various foreign income tax returns under examination. The most significant of these are in Denmark for the 2006 to 2010 tax years and South Africa for the 2005 to 2010 tax years. We believe that any uncertain tax positions related to these examinations have been adequately provided for.
	An unfavorable resolution of one or more of the above matters could have a material adverse effect on our results of operations or cash flows in the quarter and year in which an adjustment is recorded or the tax is due or paid. As audits and examinations are still in process or we have not yet reached the final stages of the appeals process, the timing of the ultimate resolution and any payments that may be required for the above matters cannot be determined at this time.

FAIR_VALUE

FAIR VALUE	3 Months Ended
	Mar. 29, 2014
FAIR VALUE	'
FAIR VALUE	'
	(15)                    FAIR VALUE
	Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In the absence of active markets for the identical assets or liabilities, such measurements involve developing assumptions based on market observable data and, in the absence of such data, internal information that is consistent with what market participants would use in a hypothetical transaction that occurs at the measurement date. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions. Preference is given to observable inputs. These two types of inputs create the following fair value hierarchy:
	·                  Level 1 — Quoted prices for identical instruments in active markets.
	·                  Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.
	·                  Level 3 — Significant inputs to the valuation model are unobservable.
	There were no changes during the periods presented to the valuation techniques we use to measure asset and liability fair values on a recurring basis.  There were no transfers between the three levels of the fair value hierarchy for the three months ended March 29, 2014 and March 30, 2013.
	The following section describes the valuation methodologies we use to measure different financial instruments at fair value on a recurring basis.
	Derivative Financial Instruments
	Our financial derivative assets and liabilities include FX forward contracts, FX embedded derivatives and commodity contracts, valued using valuation models based on observable market inputs such as forward rates, interest rates, our own credit risk and the credit risk of our counterparties, which comprise investment-grade financial institutions. Based on these inputs, the derivative assets and liabilities are classified within Level 2 of the valuation hierarchy. We have not made any adjustments to the inputs obtained from the independent sources. Based on our continued ability to enter into forward contracts, we consider the markets for our fair value instruments active. We primarily use the income approach, which uses valuation techniques to convert future amounts to a single present amount.
	As of March 29, 2014, there had been no significant impact to the fair value of our derivative liabilities due to our own credit risk, as the related instruments are collateralized under our senior credit facilities. Similarly, there has been no significant impact to the fair value of our derivative assets based on our evaluation of our counterparties’ credit risks.
	Investments in Equity Securities
	Our available-for-sale securities include equity investments traded in active international markets. They are measured at fair value using closing stock prices from active markets and are classified within Level 1 of the valuation hierarchy. These assets had a fair market value of $5.3 and $3.0 at March 29, 2014 and December 31, 2013, respectively.
	Certain of our investments in equity securities that are not readily marketable are accounted for under the fair value option and are classified as Level 3 assets in the fair value hierarchy, with such values determined by multidimensional pricing models. These models consider market activity based on modeling of securities with similar credit quality, duration, yield and structure. A variety of inputs are used, including benchmark yields, reported trades, non-binding broker/dealer quotes, issuer spread and reference data including market research publications. Market indicators, industry and economic events are also considered. We have not made any adjustments to the inputs obtained from the independent sources. At March 29, 2014 and December 31, 2013, these assets had a fair value of $3.0 and $1.4, respectively, which are estimated using various valuation models, including the Monte Carlo simulation model.
	Assets and liabilities measured at fair value on a recurring basis included the following as of March 29, 2014:
		Fair Value Measurements Using
		Level 1		Level 2			Level 3
	Other current assets — FX embedded derivatives and FX forward contracts	$	—	$	1.9		$	—
	Other assets — Investments in equity securities	5.3		—			3
	Accrued expenses — FX forward contracts, FX embedded derivatives and commodity contracts	—		8.1			—
	Other long-term liabilities — FX embedded derivatives	—		1.5			—
	Assets and liabilities measured at fair value on a recurring basis included the following as of December 31, 2013:
		Fair Value Measurements Using
		Level 1		Level 2			Level 3
	Other current assets — FX embedded derivatives, FX forward contracts and commodity contracts	$	—	$	2		$	—
	Other assets — Investments in equity securities	3		—			1.4
	Accrued expenses — FX forward contracts and FX embedded derivatives	—		6.8			—
	Other long-term liabilities — FX embedded derivatives	—		2.1			—
	The table below presents a reconciliation of our investment in equity securities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended March 29, 2014 and March 30, 2013, including net unrealized gains (losses) recorded to “Other income, net.”
		Three months ended
		March 29, 2014		March 30, 2013
	Balance at beginning of period	$	1.4	$	7.5
	Unrealized gains (losses) recorded to earnings	1.6		(0.2		)
	Balance at end of period	$	3	$	7.3
	Indebtedness and Other
	The estimated fair values of other financial liabilities (excluding capital leases) not measured at fair value on a recurring basis as of March 29, 2014 and December 31, 2013 were as follows:
		March 29, 2014					December 31, 2013
		Carrying					Carrying
		Amount		Fair Value			Amount		Fair Value
	Senior notes	$	600	$	681.8		$	1,100.00	$	1,214.30
	Term loan	475		475			475		475
	Other indebtedness	35.3		35.3			27.6		27.6
	The following methods and assumptions were used in estimating the fair value of these financial instruments:
	·                  The fair value of the senior notes and term loan was determined using Level 2 inputs within the fair value hierarchy and was based on quoted market prices for the same or similar instruments or on current rates offered to us for debt with similar maturities, subordination and credit default expectations.
	·                  The fair value of our other indebtedness approximated carrying value due primarily to the short-term nature of these instruments.
	Certain of our non-financial assets and liabilities are subject to impairment analysis, including long-lived assets, indefinite-lived intangible assets and goodwill. We review the carrying amounts of such assets whenever events or changes in circumstances indicate that the carrying amounts may not be recoverable or at least annually for indefinite-lived intangible assets and goodwill. Any resulting asset impairment would require that the instrument be recorded at its fair value. As of March 29, 2014, we did not have any significant non-financial assets or liabilities that are required to be measured at fair value on a recurring or non-recurring basis.
	The carrying amount of cash and equivalents and receivables reported in our condensed consolidated balance sheets approximates fair value due to the short maturity of those instruments.

DISCONTINUED_OPERATIONS_Tables

DISCONTINUED OPERATIONS (Tables)	3 Months Ended
	Mar. 29, 2014
DISCONTINUED OPERATIONS	'
Schedule of businesses sold showing quarter discontinued and quarter sold	'
	Business	Quarter		Quarter of Sale
		Discontinued		or Termination
				of Operations
	Thermal Product Solutions (“TPS”)	Q3 2013		Q1 2014
	Broadcast Antenna System business (“Dielectric”)	Q2 2013		Q2 2013
	Crystal Growing business (“Kayex”)	Q1 2013		Q1 2013
Schedule of income (loss) from discontinued operations and related income taxes	'
		Three months ended
		March 29,			March 30,
		2014			2013
	Income (loss) from discontinued operations	$	34.5		$	(2.6	)
	Income tax provision	(13.1		)	(2.0		)
	Income (loss) from discontinued operations, net of tax	$	21.4		$	(4.6	)
Schedule of results of operations for discontinued operations	'
		Three months ended
		March 29,			March 30,
		2014			2013
	Revenues	$	33.7		$	47.4
	Pre-tax income (loss)	0.6			(0.1		)
Schedule of major classes of assets and liabilities, excluding intercompany balances, of businesses reported as discontinued operations	'
		March 29,			December 31,
		2014			2013
	Assets:
	Accounts receivable, net	$	18.2		$	22.8
	Inventories, net	35.2			37.6
	Other current assets	1			1.2
	Property, plant and equipment, net	14.6			16.3
	Goodwill and intangibles, net	66.4			70.4
	Assets of discontinued operations	$	135.4		$	148.3
	Liabilities:
	Accounts payable	$	12.2		$	13.3
	Accrued expenses	11.1			18.6
	Liabilities of discontinued operations	$	23.3		$	31.9

INFORMATION_ON_REPORTABLE_SEGM1

INFORMATION ON REPORTABLE SEGMENTS AND OTHER OPERATING SEGMENTS (Tables)	3 Months Ended
	Mar. 29, 2014
INFORMATION ON REPORTABLE SEGMENTS AND OTHER OPERATING SEGMENTS	'
Schedule of reportable segments and other operating segments	'
		Three months ended
		March 29,			March 30,
		2014			2013
	Revenues: (1)
	Flow Technology reportable segment	$	616.7		$	613
	Thermal Equipment and Services reportable segment	279.6			305.1
	Industrial Products and Services and Other	173.1			172.4
	Total revenues	$	1,069.40		$	1,090.50
	Income:
	Flow Technology reportable segment	$	66.2		$	55
	Thermal Equipment and Services reportable segment	9.2			1.7
	Industrial Products and Services and Other	22.4			22.6
	Total income for reportable and other operating segments	97.8			79.3
	Corporate expense	(28.5		)	(30.9		)
	Pension and postretirement (expense) income	(19.8		)	4.3
	Stock-based compensation expense	(24.7		)	(20.3		)
	Impairment of intangible assets	—			(2.0		)
	Special charges, net	(9.7		)	(0.4		)
	Consolidated operating income	$	15.1		$	30
	(1)                       Under the percentage of completion method, we recognized revenues of $274.2 and $342.7 in the three months ended March 29, 2014 and March 30, 2013, respectively. Costs and estimated earnings in excess of billings on contracts accounted for under the percentage of completion method were $284.5 and $285.3 as of March 29, 2014 and December 31, 2013, respectively, and are reported as a component of “Accounts receivable, net” in the condensed consolidated balance sheets. Billings in excess of costs and estimated earnings on uncompleted contracts accounted for under the percentage of completion method were $234.9 and $218.4 as of March 29, 2014 and December 31, 2013, respectively, and are reported as a component of “Accrued expenses” in the condensed consolidated balance sheets.

SPECIAL_CHARGES_NET_Tables

SPECIAL CHARGES, NET (Tables)	3 Months Ended
	Mar. 29, 2014
SPECIAL CHARGES, NET	'
Schedule of special charges, net	'
		Three months ended
		March 29,			March 30,
		2014			2013
	Flow Technology reportable segment	$	8.9		$	(0.6	)
	Thermal Equipment and Services reportable segment	0.1			0.5
	Industrial Products and Services and Other	0.1			—
	Corporate	0.6			0.5
	Total	$	9.7		$	0.4
Schedule of the analysis of the entity's restructuring liabilities	'
		Three months ended
		March 29,			March 30,
		2014			2013
	Balance at beginning of period	$	19		$	16.4
	Special charges (1)	9.7			(0.2		)
	Utilization — cash (2)	(9.5		)	(6.6		)
	Currency translation adjustment and other	0.4			(0.1		)
	Balance at end of period	$	19.6		$	9.5
	(1)                                 The three months ended March 30, 2013 included $0.6 of non-cash charges that did not impact the restructuring liability.
	(2)                                 The three months ended March 29, 2014 included $0.4 of cash utilized to settle retained liabilities of discontinued operations.

INVENTORIES_NET_Tables

INVENTORIES, NET (Tables)	3 Months Ended
	Mar. 29, 2014
INVENTORIES, NET	'
Schedule of inventories	'
		March 29,			December 31,
		2014			2013
	Finished goods	$	161.8		$	147.5
	Work in process	168.6			165
	Raw materials and purchased parts	237.8			210.6
	Total FIFO cost	568.2			523.1
	Excess of FIFO cost over LIFO inventory value	(20.4		)	(20.9		)
	Total inventories, net	$	547.8		$	502.2

GOODWILL_AND_OTHER_INTANGIBLE_1

GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	3 Months Ended
	Mar. 29, 2014
GOODWILL AND OTHER INTANGIBLE ASSETS	'
Schedule of changes in the carrying amount of goodwill, by reportable segment and other operating segments	'
					Goodwill					Foreign
					resulting from					currency
		December 31,			business					translation			March 29,
		2013			combinations			Impairments		and other			2014
	Flow Technology reportable segment
	Gross goodwill	$	1,120.20		$	—		$	—	$	3.2		$	1,123.40
	Accumulated impairments	—			—			—		—			—
	Goodwill	1,120.20			—			—		3.2			1,123.40
	Thermal Equipment and Services reportable segment
	Gross goodwill	570			—			—		5.1			575.1
	Accumulated impairments	(399.5		)	—			—		(4.5		)	(404.0		)
	Goodwill	170.5			—			—		0.6			171.1
	Industrial Products and Services and Other
	Gross goodwill	366.8			—			—		0.8			367.6
	Accumulated impairments	(140.5		)	—			—		(0.6		)	(141.1		)
	Goodwill	226.3			—			—		0.2			226.5
	Total
	Gross goodwill	2,057.00			—			—		9.1			2,066.10
	Accumulated impairments	(540.0		)	—			—		(5.1		)	(545.1		)
	Goodwill	$	1,517.00		$	—		$	—	$	4		$	1,521.00
Schedule of identifiable intangible assets	'
		March 29, 2014								December 31, 2013
		Gross						Net		Gross						Net
		carrying			Accumulated			carrying		carrying			Accumulated			carrying
		value			amortization			value		value			amortization			value
	Intangible assets with determinable lives:
	Patents	$	11.4		$	(8.5	)	$	2.9	$	11.5		$	(8.3	)	$	3.2
	Technology	198.1			(55.9		)	142.2		196.3			(52.4		)	143.9
	Customer relationships	414.6			(84.1		)	330.5		412			(78.6		)	333.4
	Other	30.4			(18.6		)	11.8		31			(18.6		)	12.4
		654.5			(167.1		)	487.4		650.8			(157.9		)	492.9
	Trademarks with indefinite lives	433.7			—			433.7		431.8			—			431.8
	Total	$	1,088.20		$	(167.1	)	$	921.1	$	1,082.60		$	(157.9	)	$	924.7

WARRANTY_Tables

WARRANTY (Tables)	3 Months Ended
	Mar. 29, 2014
WARRANTY	'
Schedule of product warranty accrual	'
		Three months ended
		March 29,			March 30,
		2014			2013
	Balance at beginning of period	$	54.8		$	59.7
	Provisions	5.8			7.2
	Usage	(7.3		)	(9.8		)
	Balance at end of period	53.3			57.1
	Less: Current portion of warranty	41.4			47
	Non-current portion of warranty	$	11.9		$	10.1

EMPLOYEE_BENEFIT_PLANS_Tables

EMPLOYEE BENEFIT PLANS (Tables)	3 Months Ended
	Mar. 29, 2014
Domestic Pension Plans	'
Employee Benefit Plans	'
Schedule of net periodic benefit expense	'
		Three months ended
		March 29,			March 30,
		2014			2013
	Service cost	$	1.8		$	1.8
	Interest cost	6.7			12
	Expected return on plan assets	(5.5		)	(18.7		)
	Settlement charges, net (1)	0.5			—
	Recognized net actuarial loss (2)	14.8			—
	Total net periodic pension benefit expense (income)	$	18.3		$	(4.9	)
	(1)                                 Consists of the settlement charge of $4.6 associated with the lump-sum payment action that took place during the first quarter of 2014 (see above), net of a $4.1 reduction to the estimated settlement charge that was recorded during the fourth quarter of 2013 in connection with the transfer of the pension obligation for the retirees of the Plan to Massachusetts Mutual Life Insurance Company.
	(2)                                 Represents the actuarial loss resulting from the remeasurement of the assets and obligations of the Plan which was required in connection with the lump-sum payment action noted above.
Foreign Pension Plans	'
Employee Benefit Plans	'
Schedule of net periodic benefit expense	'
		Three months ended
		March 29,			March 30,
		2014			2013
	Service cost	$	0.7		$	0.7
	Interest cost	3.5			3.3
	Expected return on plan assets	(4.3		)	(4.4		)
	Total net periodic pension benefit income	(0.1		)	(0.4		)
	Less: Net periodic pension benefit income of discontinued operations	(0.2		)	(0.1		)
	Net periodic pension benefit expense (income) of continuing operations	$	0.1		$	(0.3	)
Postretirement Plans	'
Employee Benefit Plans	'
Schedule of net periodic benefit expense	'
		Three months ended
		March 29,			March 30,
		2014			2013
	Service cost	$	0.1		$	0.1
	Interest cost	1.3			1.2
	Amortization of unrecognized prior service credits	—			(0.4		)
	Net periodic postretirement benefit expense	$	1.4		$	0.9

INDEBTEDNESS_Tables

INDEBTEDNESS (Tables)	3 Months Ended
	Mar. 29, 2014
INDEBTEDNESS	'
Schedule of debt activity (both current and non-current)	'
		December 31,									March 29,
		2013		Borrowings		Repayments			Other (5)		2014
	Term loan (1)	$	475	$	—	$	—		$	—	$	475
	6.875% senior notes, maturing in August 2017	600		—		—			—		600
	7.625% senior notes (2)	500		—		(500.0		)	—		—
	Trade receivables financing arrangement (3)	—		—		—			—		—
	Other indebtedness (4)	100.6		8.6		(62.5		)	4.9		51.6
	Total debt	1,675.60		$	8.6	$	(562.5	)	$	4.9	1,126.60
	Less: Short-term debt	26.9									35.3
	Less: Current maturities of long-term debt	558.7									2.4
	Total long-term debt	$	1,090.00								$	1,088.90
	(1)                                 The term loan of $475.0 is repayable in quarterly installments (with aggregate repayments, as a percentage of the initial principal amount of $475.0, together with any additional borrowings of up to $100.0 available to be drawn under the facility on a delayed draw basis through June 21, 2014, of 5.0% annually, beginning with the first fiscal quarter of 2015), with the remaining balance repayable in full on December 23, 2018.
	(2)                                 On February 11, 2014, we completed the redemption of all our 7.625% senior notes due in December 2014 for a total redemption price of $530.6. As a result of the redemption, we recorded a charge of $32.5 to “Loss on early extinguishment of debt” during the first quarter of 2014, which related to premiums paid to redeem the senior notes of $30.6, the write-off of unamortized deferred financing fees of $1.0, and other costs associated with the extinguishment of the senior notes of $0.9.
	(3)                                 Under this arrangement, we can borrow, on a continuous basis, up to $80.0, as available. At March 29, 2014, we had $55.2 of available borrowing capacity under this facility.
	(4)                                 Primarily included capital lease obligations of $16.3 and $73.0 and balances under purchase card programs of $29.8 and $25.4 at March 29, 2014 and December 31, 2013, respectively. During the first quarter of 2014, we purchased our corporate headquarters facility for cash consideration of $60.8, resulting in the extinguishment of the related capital lease obligation.
	(5)                                 “Other” primarily included debt assumed and foreign currency translation on any debt instruments denominated in currencies other than the U.S. dollar.

FINANCIAL_INSTRUMENTS_Tables

FINANCIAL INSTRUMENTS (Tables)	3 Months Ended
	Mar. 29, 2014
Derivative financial instruments	'
Summary of the gross and net fair values of contracts by counterparty	'
		March 29, 2014									December 31, 2013
		Gross assets			Gross liabilities			Net assets /			Gross assets		Gross liabilities			Net assets /
								liabilities								liabilities
	FX forward contracts:
	Counterparty A	$	0.6		$	(0.1	)	$	0.5		$	0.7	$	(0.1	)	$	0.6
	Counterparty B	0.2			—			0.2			0.1		(0.4		)	(0.3		)
	Aggregate of other counterparties	0.2			(0.1		)	0.1			0.3		—			0.3
	Totals (1)	$	1		$	(0.2	)	$	0.8		$	1.1	$	(0.5	)	$	0.6
	Commodity contracts:
	Counterparty A (2)	$	—		$	(0.9	)	$	(0.9	)	$	0.4	$	—		$	0.4
	(1)                       We enter into arrangements designed to provide the right of setoff in the event of counterparty default or insolvency, and have elected to offset the fair values of our qualifying financial instruments in our condensed consolidated balance sheets. Amounts presented in our condensed consolidated balance sheets are as follows:
		March 29,			December 31,
		2014			2013
	Designated as hedging instruments:
	Other current assets	$	0.2		$	0.3
	Accrued expenses	—			—
		0.2			0.3
	Not designated as hedging instruments:
	Other current assets	1.1			0.6
	Accrued expenses	(0.5		)	(0.3		)
		0.6			0.3
	Net fair value of FX forward contracts	$	0.8		$	0.6
	(2)                       Related contracts are designated as hedging instruments. Net amounts at March 29, 2014 and December 31, 2013 are recorded in “Accrued expenses” and “Other current assets,” respectively.
Summary of pre-tax gain (loss) recognized in AOCI resulting from derivative financial instruments designated as cash flow hedging relationships	'
		Three months ended
		March 29,			March 30,
		2014			2013
	FX forward contracts	$	0.3		$	6.9
	Commodity contracts	(1.3		)	(1.0		)
		$	(1.0	)	$	5.9
Summary of pre-tax loss related to derivative financial instruments designated as cash flow hedging relationships reclassified from AOCI to income	'
		Three months ended
		March 29,			March 30,
		2014			2013
	FX forward contracts	$	—		$	(0.6	)
	Commodity contracts	(0.1		)	—
		$	(0.1	)	$	(0.6	)
Schedule of gain (loss) recognized in ''Other income, net'' of derivative financial instruments not designated as cash flow hedging relationships	'
		Three months ended
		March 29,			March 30,
		2014			2013
	FX forward contracts	$	0.4		$	(3.0	)
	FX embedded derivatives	(2.2		)	3.1
		$	(1.8	)	$	0.1
FX forward contracts	'
Derivative financial instruments	'
Summary of fair value of derivative instruments and the balance sheet classification	'
		March 29,			December 31,
		2014			2013
	Designated as hedging instruments:
	Other current assets	$	0.2		$	0.3
	Accrued expenses	—			—
		0.2			0.3
	Not designated as hedging instruments:
	Other current assets	1.1			0.6
	Accrued expenses	(0.5		)	(0.3		)
		0.6			0.3
	Net fair value of FX forward contracts	$	0.8		$	0.6
FX embedded derivatives	'
Derivative financial instruments	'
Summary of fair value of derivative instruments and the balance sheet classification	'
		March 29,			December 31,
	Balance Sheet Classification	2014			2013
	Other current assets	$	0.6		$	0.7
	Accrued expenses	(6.7		)	(6.5		)
	Other long-term liabilities	(1.5		)	(2.1		)
		$	(7.6	)	$	(7.9	)

EQUITY_AND_STOCKBASED_COMPENSA1

EQUITY AND STOCK-BASED COMPENSATION (Tables)	3 Months Ended
	Mar. 29, 2014
EQUITY AND STOCK-BASED COMPENSATION	'
Schedule of weighted-average shares outstanding used in the computation of basic and diluted earnings per share	'
		Three months ended
		March 29,		March 30,
		2014		2013
	Weighted-average number of common shares used in basic income per share	44.236		46.418
	Dilutive securities — Employee stock options, restricted stock shares and restricted stock units	0.846		1.032
	Weighted-average number of common shares and dilutive securities used in diluted income per share	45.082		47.45
Schedule of assumptions to determine the fair value of restricted stock awards granted	'
								Correlation between total
		Annual expected						shareholder return for SPX
		stock price		Annual expected		Risk-free		and the applicable S&P
		volatility		dividend yield		interest rate		Composite Index
	January 2, 2014:
	SPX Corporation	33.7	%	1.02	%	0.76	%	0.7631
	S&P Composite 1500 Industrials Index	19.9	%	n/a		0.76	%
	April 1, 2013:
	SPX Corporation	35.5	%	1.29	%	0.33	%	0.7668
	S&P Composite 1500 Industrials Index	21.2	%	n/a		0.33	%
	January 2, 2013:
	SPX Corporation	36.3	%	1.42	%	0.37	%	0.7778
	S&P Composite 1500 Industrials Index	22.4	%	n/a		0.37	%
Schedule of restricted stock share and restricted stock unit activity	'
				Weighted-Average
		Unvested Restricted Stock Shares		Grant-Date Fair
		and Restricted Stock Units		Value Per Share
	Outstanding at December 31, 2013	1.537		$	58.39
	Granted	0.51		86.7
	Vested	(0.537	)	58.57
	Forfeited	(0.226	)	62.15
	Outstanding at March 29, 2014	1.284		68.78
Schedule of changes in the components of accumulated other comprehensive income	'
	The changes in the components of accumulated other comprehensive income, net of tax, for the three months ended March 29, 2014 were as follows:
		Foreign			Net Unrealized			Net Unrealized			Pension and			Total
		Currency			Losses on			Losses on			Postretirement
		Translation			Qualifying Cash			Available-for-			Liability Adjustment
		Adjustment			Flow Hedges (1)			Sale Securities			and Other (2)
	Balance at beginning of period	$	296.8		$	(0.8	)	$	(3.7	)	$	(4.8	)	$	287.5
	Other comprehensive income (loss) before reclassifications	(2.0		)	(0.8		)	3.8			0.2			1.2
	Amounts reclassified from accumulated other comprehensive income	—			0.1			(0.3		)	5			4.8
	Current-period other comprehensive income (loss)	(2.0		)	(0.7		)	3.5			5.2			6
	Balance at end of period	$	294.8		$	(1.5	)	$	(0.2	)	$	0.4		$	293.5
	(1)                       Net of tax benefit of $1.2 and $1.0 as of March 29, 2014 and December 31, 2013, respectively.
	(2)                       Net of tax (provision) benefit of $(0.1) and $2.2 as of March 29, 2014 and December 31, 2013, respectively. The balance as of December 31, 2013 primarily includes $(5.0), net of tax, related to our share of the pension liability adjustment for EGS as of December 31, 2013. In connection with the sale of our interest in EGS during the first quarter of 2014, as described in Note 1, we recognized our share of the pension liability adjustment for EGS as a component of the gain on sale of our investment interest.
	The changes in the components of accumulated other comprehensive income, net of tax, for the three months ended March 30, 2013 were as follows:
		Foreign			Net Unrealized			Net Unrealized			Pension and			Total
		Currency			Losses on			Losses on			Postretirement
		Translation			Qualifying Cash			Available-for-			Liability Adjustment
		Adjustment			Flow Hedges (1)			Sale Securities			and Other (2)
	Balance at beginning of period	$	293.8		$	(3.3	)	$	(3.1	)	$	(2.6	)	$	284.8
	Other comprehensive income (loss) before reclassifications	(87.2		)	3.6			(0.5		)	(1.2		)	(85.3		)
	Amounts reclassified from accumulated other comprehensive income	—			0.4			—			(0.3		)	0.1
	Current-period other comprehensive income (loss)	(87.2		)	4			(0.5		)	(1.5		)	(85.2		)
	Balance at end of period	$	206.6		$	0.7		$	(3.6	)	$	(4.1	)	$	199.6
	(1)                       Net of tax benefit of $2.5 as of December 31, 2012.
	(2)                       Net of tax benefit of $1.8 and $1.2 as of March 30, 2013 and December 31, 2012, respectively. Includes $(5.0) and $(3.8) related to our share of the pension liability adjustment for EGS as of March 30, 2013 and December 31, 2012, respectively.
Schedule of amounts reclassified from each component of accumulated comprehensive loss	'
		Amount Reclassified from AOCI
		Three months ended						Affected Line Item in the Condensed
		March 29, 2014			March 30, 2013			Consolidated Statements of Operations
	Losses on qualifying cash flow hedges:
	Commodity contracts	$	0.1		$	—		Cost of products sold
	FX forward contracts	—			0.6			Revenues
	Pre-tax	0.1			0.6
	Income taxes	—			(0.2		)
		$	0.1		$	0.4
	Gain on available-for-sale securities	$	0.3		$	—		Other income, net
	Losses (gains) on pension and postretirement items:
	Recognition of our share of the pension liability adjustment for EGS	$	7.4		$	—		Other income, net
	Amortization of unrecognized prior service credits	—			(0.4		)	Selling, general and administrative
	Pre-tax	7.4			(0.4		)
	Income taxes	(2.4		)	0.1
		$	5		$	(0.3	)
Schedule of changes in equity	'
		March 29, 2014									March 30, 2013
		SPX									SPX
		Corporation									Corporation
		Shareholders’			Noncontrolling			Total			Shareholders’			Noncontrolling			Total
		Equity			Interests			Equity			Equity			Interests			Equity
	Equity, beginning of period	$	2,158.00		$	14		$	2,172.00		$	2,224.20		$	11.3		$	2,235.50
	Net income (loss)	318.2			(0.4		)	317.8			8.7			1.3			10
	Net unrealized gains (losses) on qualifying cash flow hedges, net of tax (provision) benefit of $0.2 and $(2.5) for the three months ended March 29, 2014 and March 30, 2013, respectively	(0.7		)	—			(0.7		)	4			—			4
	Net unrealized gains (losses) on available-for-sale securities	3.5			—			3.5			(0.5		)	—			(0.5		)
	Pension liability adjustment, net of tax (provision) benefit of $(2.3) and $0.7 for the three months ended March 29, 2014 and March 30, 2013, respectively	5.2			—			5.2			(1.5		)	—			(1.5		)
	Foreign currency translation adjustments	(2.0		)	(0.1		)	(2.1		)	(87.2		)	(0.6		)	(87.8		)
	Total comprehensive income (loss), net	324.2			(0.5		)	323.7			(76.5		)	0.7			(75.8		)
	Dividends declared	(16.3		)	—			(16.3		)	(11.4		)	—			(11.4		)
	Exercise of stock options and other incentive plan activity, including related tax benefit of $8.8 and $5.8 for the three months ended March 29, 2014 and March 30, 2013, respectively	13.6			—			13.6			10.1			—			10.1
	Amortization of restricted stock and restricted stock unit grants	24.7			—			24.7			20.3			—			20.3
	Restricted stock and restricted stock unit vesting, net of tax withholdings	(20.3		)	—			(20.3		)	(20.5		)	—			(20.5		)
	Common stock repurchases	(134.3		)	—			(134.3		)	(131.4		)	—			(131.4		)
	Other changes in noncontrolling interests	—			—			—			—			(0.2		)	(0.2		)
	Equity, end of period	$	2,349.60		$	13.5		$	2,363.10		$	2,014.80		$	11.8		$	2,026.60

FAIR_VALUE_Tables

FAIR VALUE (Tables)	3 Months Ended
	Mar. 29, 2014
FAIR VALUE	'
Schedule of assets and liabilities measured at fair value on a recurring basis	'
	Assets and liabilities measured at fair value on a recurring basis included the following as of March 29, 2014:
		Fair Value Measurements Using
		Level 1		Level 2			Level 3
	Other current assets — FX embedded derivatives and FX forward contracts	$	—	$	1.9		$	—
	Other assets — Investments in equity securities	5.3		—			3
	Accrued expenses — FX forward contracts, FX embedded derivatives and commodity contracts	—		8.1			—
	Other long-term liabilities — FX embedded derivatives	—		1.5			—
	Assets and liabilities measured at fair value on a recurring basis included the following as of December 31, 2013:
		Fair Value Measurements Using
		Level 1		Level 2			Level 3
	Other current assets — FX embedded derivatives, FX forward contracts and commodity contracts	$	—	$	2		$	—
	Other assets — Investments in equity securities	3		—			1.4
	Accrued expenses — FX forward contracts and FX embedded derivatives	—		6.8			—
	Other long-term liabilities — FX embedded derivatives	—		2.1			—
Schedule of reconciliation of investments in equity securities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)	'
		Three months ended
		March 29, 2014		March 30, 2013
	Balance at beginning of period	$	1.4	$	7.5
	Unrealized gains (losses) recorded to earnings	1.6		(0.2		)
	Balance at end of period	$	3	$	7.3
Schedule of estimated fair values of other financial liabilities (excluding capital leases) not measured at fair value on a recurring basis	'
		March 29, 2014					December 31, 2013
		Carrying					Carrying
		Amount		Fair Value			Amount		Fair Value
	Senior notes	$	600	$	681.8		$	1,100.00	$	1,214.30
	Term loan	475		475			475		475
	Other indebtedness	35.3		35.3			27.6		27.6

BASIS_OF_PRESENTATION_Details

BASIS OF PRESENTATION (Details) (USD $)	0 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Jan. 07, 2014	Mar. 29, 2014	Mar. 30, 2013
BASIS OF PRESENTATION	'	'	'
Length of second and third quarter	'	'91 days	'
Investment in joint venture under equity method investment	'	'	'
Gain on sale of interest in joint venture	'	$491.20	'
Equity earnings related to investment	'	'	9.1
EGS Electrical Group, LLC and Subsidiaries ("EGS")	'	'	'
Investment in joint venture under equity method investment	'	'	'
Percentage of interest held in joint venture sold	44.50%	'	'
Cash proceeds from sale of interest in joint venture	574.1	'	'
Gain on sale of interest in joint venture	'	491.2	'
Lag period for accounting of equity method investment prior to sale	'3 months	'	'
Equity earnings related to investment	'	$0	$9.20

DISCONTINUED_OPERATIONS_Detail

DISCONTINUED OPERATIONS (Details) (USD $)

3 Months Ended

0 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

In Millions, unless otherwise specified

Mar. 29, 2014

Mar. 30, 2013

Dec. 31, 2013

Apr. 10, 2014

Mar. 29, 2014

Jun. 29, 2013

Jun. 29, 2013

Dec. 31, 2013

Sep. 30, 2013

Mar. 30, 2013

Dec. 31, 2013

Mar. 29, 2014

Mar. 30, 2013

item

SPX Precision Components business

TPS

Dielectric

Dielectric

Kayex

Kayex

Kayex

Kayex

Other businesses sold prior to the earliest date presented in the financial statements

Other businesses sold prior to the earliest date presented in the financial statements

Maximum

Discontinued Operations

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash consideration

'

'

'

$62.40

$38.50

$4.70

'

'

'

'

'

'

'

Promissory note receivable as consideration on sale of business

'

'

'

'

4

'

'

'

'

'

'

'

'

Gain (loss) on sale of business, net of tax

21

-5.2

'

'

21.5

'

0.1

3.4

3.4

-2.1

'

'

'

Cash consideration, gross

'

'

'

'

'

'

'

'

'

'

6.9

'

'

Adjustment to losses on sale of discontinued operations, net of tax

'

'

'

'

'

'

'

'

'

'

'

0.5

3.1

Number of businesses in discontinued operation

3

'

'

'

'

'

'

'

'

'

'

'

'

Income (loss) from discontinued operations and related income taxes

'

'

'

'

'

'

'

'

'

'

'

'

'

Income (loss) from discontinued operations

34.5

-2.6

'

'

'

'

'

'

'

'

'

'

'

Income tax provision

-13.1

-2

'

'

'

'

'

'

'

'

'

'

'

Income (loss) from discontinued operations, net of tax

21.4

-4.6

'

'

'

'

'

'

'

'

'

'

'

Results of operations for discontinued operations

'

'

'

'

'

'

'

'

'

'

'

'

'

Revenues

33.7

47.4

'

'

'

'

'

'

'

'

'

'

'

Pre-tax income (loss)

0.6

-0.1

'

'

'

'

'

'

'

'

'

'

'

Assets:

'

'

'

'

'

'

'

'

'

'

'

'

'

Accounts receivable, net

18.2

'

22.8

'

'

'

'

'

'

'

'

'

'

Inventories, net

35.2

'

37.6

'

'

'

'

'

'

'

'

'

'

Other current assets

1

'

1.2

'

'

'

'

'

'

'

'

'

'

Property, plant and equipment, net

14.6

'

16.3

'

'

'

'

'

'

'

'

'

'

Goodwill and intangibles, net

66.4

'

70.4

'

'

'

'

'

'

'

'

'

'

Assets of discontinued operations

135.4

'

148.3

'

'

'

'

'

'

'

'

'

'

Liabilities:

'

'

'

'

'

'

'

'

'

'

'

'

'

Accounts payable

12.2

'

13.3

'

'

'

'

'

'

'

'

'

'

Accrued expenses

11.1

'

18.6

'

'

'

'

'

'

'

'

'

'

Liabilities of discontinued operations

$23.30

'

$31.90

'

'

'

'

'

'

'

'

'

'

INFORMATION_ON_REPORTABLE_SEGM2

INFORMATION ON REPORTABLE SEGMENTS AND OTHER OPERATING SEGMENTS (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013	Dec. 31, 2013
	item
Business segment	'	'	'
Number of reportable segments	2	'	'
Revenues:	'	'	'
Revenues	$1,069.40	$1,090.50	'
Income:	'	'	'
Pension and postretirement (expense) income	-19.8	4.3	'
Stock-based compensation expense	-24.7	-20.3	'
Impairment of intangible assets	0	-2	'
Special charges, net	-9.7	-0.4	'
Operating income	15.1	30	'
Detail of revenues	'	'	'
Revenues recognized under percentage of completion method	274.2	342.7	'
Costs and estimated earnings in excess of billings	284.5	'	285.3
Billings in excess of costs and estimated earnings on uncompleted contracts reported as a component of accrued expenses	234.9	'	218.4
General corporate	'	'	'
Income:	'	'	'
Corporate expense	-28.5	-30.9	'
Special charges, net	-0.6	-0.5	'
Reportable and other operating segments	'	'	'
Income:	'	'	'
Operating income	97.8	79.3	'
Flow Technology reportable segment	'	'	'
Income:	'	'	'
Special charges, net	-8.9	0.6	'
Flow Technology reportable segment | Reportable and other operating segments	'	'	'
Revenues:	'	'	'
Revenues	616.7	613	'
Income:	'	'	'
Operating income	66.2	55	'
Thermal Equipment and Services reportable segment	'	'	'
Income:	'	'	'
Special charges, net	-0.1	-0.5	'
Thermal Equipment and Services reportable segment | Reportable and other operating segments	'	'	'
Revenues:	'	'	'
Revenues	279.6	305.1	'
Income:	'	'	'
Operating income	9.2	1.7	'
Industrial Products and Services and Other	'	'	'
Income:	'	'	'
Special charges, net	-0.1	'	'
Industrial Products and Services and Other | Reportable and other operating segments	'	'	'
Revenues:	'	'	'
Revenues	173.1	172.4	'
Income:	'	'	'
Operating income	$22.40	$22.60	'
Minimum	'	'	'
Business segment	'	'	'
Number of countries in which entity operates	35	'	'
Number of countries in which entity sells its products and services	150	'	'

SPECIAL_CHARGES_NET_Details

SPECIAL CHARGES, NET (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013
Special charges, net	'	'
Special charges, net	$9.70	$0.40
Expected charges to be incurred	2	'
Restructuring liabilities	'	'
Balance at beginning of period	19	16.4
Special charges	9.7	-0.2
Utilization - cash	-9.5	-6.6
Currency translation adjustment and other	0.4	-0.1
Balance at end of period	19.6	9.5
Non-cash special charges	'	0.6
Discontinued operations	'	'
Restructuring liabilities	'	'
Utilization - cash	-0.4	'
Corporate	'	'
Special charges, net	'	'
Special charges, net	0.6	0.5
Number of terminated building leases	'	2
Asset impairment charges	'	0.3
Flow Technology reportable segment	'	'
Special charges, net	'	'
Special charges, net	8.9	-0.6
Thermal Equipment and Services reportable segment	'	'
Special charges, net	'	'
Special charges, net	0.1	0.5
Industrial Products and Services and Other	'	'
Special charges, net	'	'
Special charges, net	$0.10	'

INVENTORIES_NET_Details

INVENTORIES, NET (Details) (USD $)	Mar. 29, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
INVENTORIES, NET	'	'
Finished goods	$161.80	$147.50
Work in process	168.6	165
Raw materials and purchased parts	237.8	210.6
Total FIFO cost	568.2	523.1
Excess of FIFO cost over LIFO inventory value	-20.4	-20.9
Total inventories, net	$547.80	$502.20
Domestic inventories, valued using the last-in, first-out ("LIFO") method, as a percentage of total inventory	19.00%	19.00%

GOODWILL_AND_OTHER_INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLE ASSETS (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014
Changes in the carrying amount of goodwill	'
Gross goodwill, beginning of the period	$2,057
Accumulated impairment, balance at the beginning of the period	-540
Goodwill, balance at the beginning of the period	1,517
Gross goodwill related to foreign currency translation and other	9.1
Accumulated impairments related to foreign currency translation and other	-5.1
Goodwill related to foreign currency translation and other	4
Gross goodwill, end of the period	2,066.10
Accumulated impairment, balance at the end of the period	-545.1
Goodwill, balance at the end of the period	1,521
Flow Technology reportable segment	'
Changes in the carrying amount of goodwill	'
Gross goodwill, beginning of the period	1,120.20
Goodwill, balance at the beginning of the period	1,120.20
Gross goodwill related to foreign currency translation and other	3.2
Goodwill related to foreign currency translation and other	3.2
Gross goodwill, end of the period	1,123.40
Goodwill, balance at the end of the period	1,123.40
Thermal Equipment and Services reportable segment	'
Changes in the carrying amount of goodwill	'
Gross goodwill, beginning of the period	570
Accumulated impairment, balance at the beginning of the period	-399.5
Goodwill, balance at the beginning of the period	170.5
Gross goodwill related to foreign currency translation and other	5.1
Accumulated impairments related to foreign currency translation and other	-4.5
Goodwill related to foreign currency translation and other	0.6
Gross goodwill, end of the period	575.1
Accumulated impairment, balance at the end of the period	-404
Goodwill, balance at the end of the period	171.1
Industrial Products and Services and Other	'
Changes in the carrying amount of goodwill	'
Gross goodwill, beginning of the period	366.8
Accumulated impairment, balance at the beginning of the period	-140.5
Goodwill, balance at the beginning of the period	226.3
Gross goodwill related to foreign currency translation and other	0.8
Accumulated impairments related to foreign currency translation and other	-0.6
Goodwill related to foreign currency translation and other	0.2
Gross goodwill, end of the period	367.6
Accumulated impairment, balance at the end of the period	-141.1
Goodwill, balance at the end of the period	$226.50

GOODWILL_AND_OTHER_INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013	Dec. 31, 2013
Intangible assets with determinable lives	'	'	'
Gross carrying value of finite-lived intangible assets	$654.50	'	$650.80
Accumulated amortization	-167.1	'	-157.9
Net carrying value of finite-lived intangible assets	487.4	'	492.9
Total intangible assets	'	'	'
Gross carrying value	1,088.20	'	1,082.60
Net carrying value	921.1	'	924.7
Impairment charges	0	2	'
Flow Technology reportable segment	'	'	'
Intangible assets with determinable lives	'	'	'
Net carrying value of finite-lived intangible assets	433.4	'	'
Intangible assets with indefinite lives	'	'	'
Trademarks	288.7	'	'
Thermal Equipment and Services reportable segment	'	'	'
Intangible assets with determinable lives	'	'	'
Net carrying value of finite-lived intangible assets	46.1	'	'
Intangible assets with indefinite lives	'	'	'
Trademarks	126.4	'	'
Industrial Products and Services and Other	'	'	'
Intangible assets with determinable lives	'	'	'
Net carrying value of finite-lived intangible assets	7.9	'	'
Intangible assets with indefinite lives	'	'	'
Trademarks	18.6	'	'
Trademarks	'	'	'
Intangible assets with indefinite lives	'	'	'
Trademarks	433.7	'	431.8
Trademarks | Clyde Union Holdings, SARL	'	'	'
Total intangible assets	'	'	'
Impairment charges	'	2	'
Patents	'	'	'
Intangible assets with determinable lives	'	'	'
Gross carrying value of finite-lived intangible assets	11.4	'	11.5
Accumulated amortization	-8.5	'	-8.3
Net carrying value of finite-lived intangible assets	2.9	'	3.2
Technology	'	'	'
Intangible assets with determinable lives	'	'	'
Gross carrying value of finite-lived intangible assets	198.1	'	196.3
Accumulated amortization	-55.9	'	-52.4
Net carrying value of finite-lived intangible assets	142.2	'	143.9
Customer relationships	'	'	'
Intangible assets with determinable lives	'	'	'
Gross carrying value of finite-lived intangible assets	414.6	'	412
Accumulated amortization	-84.1	'	-78.6
Net carrying value of finite-lived intangible assets	330.5	'	333.4
Other	'	'	'
Intangible assets with determinable lives	'	'	'
Gross carrying value of finite-lived intangible assets	30.4	'	31
Accumulated amortization	-18.6	'	-18.6
Net carrying value of finite-lived intangible assets	$11.80	'	$12.40

WARRANTY_Details

WARRANTY (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013
Analysis of product warranty accrual	'	'
Balance at beginning of period	$54.80	$59.70
Provisions	5.8	7.2
Usage	-7.3	-9.8
Balance at end of period	53.3	57.1
Less: Current portion of warranty	41.4	47
Non-current portion of warranty	$11.90	$10.10

EMPLOYEE_BENEFIT_PLANS_Details

EMPLOYEE BENEFIT PLANS (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013
	item
EMPLOYEE BENEFIT PLANS	'	'
Number of eligible former employees offered with voluntary single lump-sum payment option in lieu of a future pension benefit	7,100	'
Percentage of projected benefit obligation of the Plan settled as a result of lump-sum payments	38.00%	'
Projected benefit obligation of the Plan settled as a result of lump-sum payments	$165.20	'
Employee benefit plans	'	'
Charge reflected in net periodic pension benefit expense	4.6	'
Net periodic pension/postretirement benefit expense	'	'
Net periodic pension and postretirement benefit expense (income)	19.8	-4.3
Employer contribution to pension plan	0.9	'
Discontinued operations	'	'
Net periodic pension/postretirement benefit expense	'	'
Employer contribution to pension plan	0.8	'
Domestic Pension Plans	'	'
Employee benefit plans	'	'
Charge reflected in net periodic pension benefit expense	4.6	'
Reduction to estimated settlement charge	4.1	'
Net periodic pension/postretirement benefit expense	'	'
Service cost	1.8	1.8
Interest cost	6.7	12
Expected return on plan assets	-5.5	-18.7
Settlement charges, net	0.5	'
Recognized net actuarial loss	14.8	'
Net periodic pension and postretirement benefit expense (income)	18.3	-4.9
Foreign Pension Plans	'	'
Net periodic pension/postretirement benefit expense	'	'
Service cost	0.7	0.7
Interest cost	3.5	3.3
Expected return on plan assets	-4.3	-4.4
Net periodic pension and postretirement benefit expense (income)	-0.1	-0.4
Less: Net periodic pension benefit income of discontinued operations	-0.2	-0.1
Net periodic pension benefit expense (income) of continuing operations	0.1	-0.3
Postretirement Plans	'	'
Net periodic pension/postretirement benefit expense	'	'
Service cost	0.1	0.1
Interest cost	1.3	1.2
Amortization of unrecognized prior service credits	'	-0.4
Net periodic pension and postretirement benefit expense (income)	$1.40	$0.90

INDEBTEDNESS_Details

INDEBTEDNESS (Details) (USD $)	3 Months Ended		3 Months Ended			0 Months Ended	3 Months Ended		3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Dec. 31, 2013	Mar. 29, 2014	Mar. 29, 2014	Dec. 31, 2013	Feb. 11, 2014	Mar. 29, 2014	Mar. 29, 2014	Mar. 29, 2014	Dec. 31, 2013
			Term loan	6.875% senior notes, maturing in August 2017	6.875% senior notes, maturing in August 2017	7.625% senior notes	7.625% senior notes	Trade receivables financing arrangement	Other indebtedness	Other indebtedness
Debt	'	'	'	'	'	'	'	'	'	'
Balance at the beginning of the period	$1,675.60	'	$475	$600	$600	'	$500	'	$100.60	'
Borrowings	8.6	'	'	'	'	'	'	'	8.6	'
Repayments	-562.5	'	'	'	'	'	-500	'	-62.5	'
Other	4.9	'	'	'	'	'	'	'	4.9	'
Balance at the end of the period	1,126.60	'	475	600	600	'	'	'	51.6	'
Less: Short-term debt	35.3	26.9	'	'	'	'	'	'	'	'
Less: Current maturities of long-term debt	2.4	558.7	'	'	'	'	'	'	'	'
Total long-term debt	1,088.90	1,090	'	'	'	'	'	'	'	'
Interest rate percentage	'	'	'	6.88%	'	7.63%	'	'	'	'
Debt repayable in quarterly installments	'	'	475	'	'	'	'	'	'	'
Initial principal amount	'	'	475	'	'	'	'	'	'	'
Maximum borrowing capacity	'	'	100	'	'	'	'	80	'	'
Percentage of initial principal amount which the entity will repay annually beginning with the first fiscal quarter of 2015	'	'	5.00%	'	'	'	'	'	'	'
Redemption price	'	'	'	'	'	530.6	'	'	'	'
Loss on early extinguishment of debt	32.5	'	'	'	'	'	32.5	'	'	'
Redemption premium paid	30.6	'	'	'	'	'	30.6	'	'	'
Write-off of unamortized deferred financing fees	'	'	'	'	'	'	1	'	'	'
Other costs associated with the extinguishment	'	'	'	'	'	'	0.9	'	'	'
Available borrowing capacity	'	'	'	'	'	'	'	55.2	'	'
Capital lease obligations	'	'	'	'	'	'	'	'	16.3	73
Purchase card programs	'	'	'	'	'	'	'	'	29.8	25.4
Cash consideration for purchase of corporate headquarters facility	'	'	'	'	'	'	'	'	$60.80	'

INDEBTEDNESS_Details_2

INDEBTEDNESS (Details 2) (USD $)	Mar. 29, 2014
In Millions, unless otherwise specified
Senior credit facility	'
Credit Facilities	'
Weighted-average interest rate of senior credit facilities (as a percent)	1.90%
Domestic revolving credit facility	'
Credit Facilities	'
Letters of credit issued, amount outstanding	53.6
Foreign credit instrument facility	'
Credit Facilities	'
Letters of credit issued, amount outstanding	674.7
Letters of credit under separate arrangements in China and India	'
Credit Facilities	'
Letters of credit issued, amount outstanding	7.3

FINANCIAL_INSTRUMENTS_Details

FINANCIAL INSTRUMENTS (Details) (USD $)	Mar. 29, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
FX forward contracts	'	'
Derivative disclosures	'	'
Aggregate notional amount	$193.20	$191.30
Unrealized gain (loss), net of tax, recorded in AOCI	-1	-1
FX embedded derivatives	'	'
Derivative disclosures	'	'
Aggregate notional amount	141.8	145.8
Commodity contracts	'	'
Derivative disclosures	'	'
Unrealized gain (loss), net of tax, recorded in AOCI	-0.5	0.2
Notional amount of commodity contracts (in pounds of copper)	4,800,000	3,400,000
Fair value of derivative contract	0.9	0.9
Fair value of derivative contract	$0.40	$0.40

FINANCIAL_INSTRUMENTS_Details_

FINANCIAL INSTRUMENTS (Details 2) (USD $)	Mar. 29, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
FX forward contracts	'	'
Fair value of derivative financial instruments	'	'
Gross assets	$1	$1.10
Gross liabilities	-0.2	-0.5
Net assets / liabilities	0.8	0.6
FX forward contracts | Counterparty A	'	'
Fair value of derivative financial instruments	'	'
Gross assets	0.6	0.7
Gross liabilities	-0.1	-0.1
Net assets / liabilities	0.5	0.6
FX forward contracts | Counterparty B	'	'
Fair value of derivative financial instruments	'	'
Gross assets	0.2	0.1
Gross liabilities	'	-0.4
Net assets / liabilities	0.2	-0.3
FX forward contracts | Aggregate of other counterparties	'	'
Fair value of derivative financial instruments	'	'
Gross assets	0.2	0.3
Gross liabilities	-0.1	'
Net assets / liabilities	0.1	0.3
Derivative contracts designated as hedging instruments | FX forward contracts	'	'
Fair value of derivative financial instruments	'	'
Net assets / liabilities	0.2	0.3
Derivative contracts designated as hedging instruments | FX forward contracts | Other current assets	'	'
Fair value of derivative financial instruments	'	'
Gross assets	0.2	0.3
Derivative contracts designated as hedging instruments | Commodity contracts | Counterparty A	'	'
Fair value of derivative financial instruments	'	'
Gross assets	'	0.4
Gross liabilities	-0.9	'
Net assets / liabilities	-0.9	0.4
Derivative contracts not designated as hedging instruments | FX forward contracts	'	'
Fair value of derivative financial instruments	'	'
Net assets / liabilities	0.6	0.3
Derivative contracts not designated as hedging instruments | FX forward contracts | Other current assets	'	'
Fair value of derivative financial instruments	'	'
Gross assets	1.1	0.6
Derivative contracts not designated as hedging instruments | FX forward contracts | Accrued expenses	'	'
Fair value of derivative financial instruments	'	'
Gross liabilities	-0.5	-0.3
Derivative contracts not designated as hedging instruments | FX embedded derivatives	'	'
Fair value of derivative financial instruments	'	'
Net assets / liabilities	-7.6	-7.9
Derivative contracts not designated as hedging instruments | FX embedded derivatives | Other current assets	'	'
Fair value of derivative financial instruments	'	'
Gross assets	0.6	0.7
Derivative contracts not designated as hedging instruments | FX embedded derivatives | Accrued expenses	'	'
Fair value of derivative financial instruments	'	'
Gross liabilities	-6.7	-6.5
Derivative contracts not designated as hedging instruments | FX embedded derivatives | Other long-term liabilities	'	'
Fair value of derivative financial instruments	'	'
Gross liabilities	($1.50)	($2.10)

FINANCIAL_INSTRUMENTS_Details_1

FINANCIAL INSTRUMENTS (Details 3) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013
Cash flow hedge	'	'
Derivative instrument disclosures	'	'
Amount of gain (loss) recognized in AOCI, pre-tax	($1)	$5.90
Amount of gain (loss) reclassified from AOCI to income, pre-tax	-0.1	-0.6
Cash flow hedge | FX forward contracts	'	'
Derivative instrument disclosures	'	'
Amount of gain (loss) recognized in AOCI, pre-tax	0.3	6.9
Cash flow hedge | FX forward contracts | Revenues	'	'
Derivative instrument disclosures	'	'
Amount of gain (loss) reclassified from AOCI to income, pre-tax	'	-0.6
Cash flow hedge | Commodity contracts	'	'
Derivative instrument disclosures	'	'
Amount of gain (loss) recognized in AOCI, pre-tax	-1.3	-1
Cash flow hedge | Commodity contracts | Cost of products sold	'	'
Derivative instrument disclosures	'	'
Amount of gain (loss) reclassified from AOCI to income, pre-tax	-0.1	'
Derivative contracts not designated as hedging instruments | Other income, net	'	'
Derivative instrument disclosures	'	'
Amount of gain (loss) recognized in income	-1.8	0.1
Derivative contracts not designated as hedging instruments | FX forward contracts | Other income, net	'	'
Derivative instrument disclosures	'	'
Amount of gain (loss) recognized in income	0.4	-3
Derivative contracts not designated as hedging instruments | FX embedded derivatives | Other income, net	'	'
Derivative instrument disclosures	'	'
Amount of gain (loss) recognized in income	($2.20)	$3.10

EQUITY_AND_STOCKBASED_COMPENSA2

EQUITY AND STOCK-BASED COMPENSATION (Details)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013
Income Per Share	'	'
Weighted-average number of common shares used in basic income per share	44,236	46,418
Dilutive securities - Employee stock options, restricted stock shares and restricted stock units (in shares)	846	1,032
Weighted-average number of common shares and dilutive securities used in diluted income per share	45,082	47,450
Stock options	'	'
Stock-based Compensation	'	'
Options outstanding (in shares)	0	'
Restricted stock shares and restricted stock units	'	'
Stock-based Compensation	'	'
Number of units that were excluded from the computation of diluted income per share	'	225

EQUITY_AND_STOCKBASED_COMPENSA3

EQUITY AND STOCK-BASED COMPENSATION (Details 2) (USD $)	0 Months Ended			3 Months Ended					0 Months Ended
In Millions, unless otherwise specified	Jan. 02, 2014	Apr. 01, 2013	Jan. 02, 2013	Mar. 29, 2014	Mar. 29, 2014	Mar. 29, 2014	Mar. 29, 2014	Mar. 30, 2013	Jan. 02, 2014	Apr. 01, 2013	Jan. 02, 2013
					Minimum	Maximum	Restricted stock shares and restricted stock units	Restricted stock shares and restricted stock units	S&P Composite 1500 Industrials Index	S&P Composite 1500 Industrials Index	S&P Composite 1500 Industrials Index
Stock-based Compensation	'	'	'	'	'	'	'	'	'	'	'
Compensation expense	'	'	'	'	'	'	$24.70	$20.30	'	'	'
Related tax benefit	'	'	'	'	'	'	$8.90	$7.30	'	'	'
Assumptions in determining the fair value of awards granted	'	'	'	'	'	'	'	'	'	'	'
Annual expected stock price volatility (as a percent)	33.70%	35.50%	36.30%	'	'	'	'	'	19.90%	21.20%	22.40%
Annual expected dividend yield (as a percent)	1.02%	1.29%	1.42%	'	'	'	'	'	'	'	'
Risk-free interest rate (as a percent)	0.76%	0.33%	0.37%	'	'	'	'	'	0.76%	0.33%	0.37%
Correlation between total shareholder return for SPX and the applicable S&P Index	0.7631	0.7668	0.7778	'	'	'	'	'	'	'	'
Historical period upon which annual expected stock price volatility is based	'	'	'	'3 years	'	'	'	'	'	'	'
Daily treasury yield curve period upon which average risk-free interest rate is based	'	'	'	'	'1 year	'3 years	'	'	'	'	'

EQUITY_AND_STOCKBASED_COMPENSA4

EQUITY AND STOCK-BASED COMPENSATION (Details 3) (Restricted stock shares and restricted stock units, USD $)	3 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Mar. 29, 2014
Restricted stock shares and restricted stock units	'
Unvested Restricted Stock Shares and Restricted Stock Units	'
Outstanding at the beginning of the period (in shares)	1,537
Granted (in shares)	510
Vested (in shares)	-537
Forfeited (in shares)	-226
Outstanding at the end of the period (in shares)	1,284
Weighted-Average Grant-Date Fair Value	'
Outstanding at the beginning of the period (in dollars per share)	$58.39
Granted (in dollars per share)	$86.70
Vested (in dollars per share)	$58.57
Forfeited (in dollars per share)	$62.15
Outstanding at the end of the period (in dollars per share)	$68.78
Unrecognized compensation cost	'
Unrecognized compensation cost related to restricted stock share and restricted stock unit	$38.70
Weighted-average period over which unrecognized compensation costs will be recognized	'2 years 3 months 18 days

EQUITY_AND_STOCKBASED_COMPENSA5

EQUITY AND STOCK-BASED COMPENSATION (Details 4) (USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Components of Accumulated Other Comprehensive income	'	'	'	'
Balance at beginning of period	$287.50	'	'	'
Balance at end of period	293.5	'	'	'
Pension and postretirement liability adjustment and other, tax benefit	-2.3	0.7	'	'
EGS Electrical Group, LLC and Subsidiaries ("EGS")	'	'	'	'
Components of Accumulated Other Comprehensive income	'	'	'	'
Pension and postretirement liability adjustment and other, tax benefit	'	'	-5	'
Pension and postretirement liability adjustment and other, tax benefit of unamortized prior service credits	'	-5	'	-3.8
Total	'	'	'	'
Components of Accumulated Other Comprehensive income	'	'	'	'
Balance at beginning of period	287.5	284.8	284.8	'
Other comprehensive income (loss) before reclassifications	1.2	-85.3	'	'
Amounts reclassified from accumulated other comprehensive income	4.8	0.1	'	'
Other comprehensive income (loss), net	6	-85.2	'	'
Balance at end of period	293.5	199.6	'	'
Foreign Currency Translation Adjustment	'	'	'	'
Components of Accumulated Other Comprehensive income	'	'	'	'
Balance at beginning of period	296.8	293.8	293.8	'
Other comprehensive income (loss) before reclassifications	-2	-87.2	'	'
Other comprehensive income (loss), net	-2	-87.2	'	'
Balance at end of period	294.8	206.6	'	'
Net Unrealized Losses on Qualifying Cash Flow Hedges	'	'	'	'
Components of Accumulated Other Comprehensive income	'	'	'	'
Balance at beginning of period	-0.8	-3.3	-3.3	'
Other comprehensive income (loss) before reclassifications	-0.8	3.6	'	'
Amounts reclassified from accumulated other comprehensive income	0.1	0.4	'	'
Other comprehensive income (loss), net	-0.7	4	'	'
Balance at end of period	-1.5	0.7	-0.8	-3.3
Net unrealized gain (loss) on qualifying cash flow hedges, tax (provision) benefit	1.2	'	1	2.5
Net Unrealized Losses on Available-for-Sale Securities	'	'	'	'
Components of Accumulated Other Comprehensive income	'	'	'	'
Balance at beginning of period	-3.7	-3.1	-3.1	'
Other comprehensive income (loss) before reclassifications	3.8	-0.5	'	'
Amounts reclassified from accumulated other comprehensive income	-0.3	'	'	'
Other comprehensive income (loss), net	3.5	-0.5	'	'
Balance at end of period	-0.2	-3.6	'	'
Pension and Postretirement Liability Adjustment and Other	'	'	'	'
Components of Accumulated Other Comprehensive income	'	'	'	'
Balance at beginning of period	-4.8	-2.6	-2.6	'
Other comprehensive income (loss) before reclassifications	0.2	-1.2	'	'
Amounts reclassified from accumulated other comprehensive income	5	-0.3	'	'
Other comprehensive income (loss), net	5.2	-1.5	'	'
Balance at end of period	0.4	-4.1	-4.8	-2.6
Pension and postretirement liability adjustment and other, tax benefit	($0.10)	$1.80	$2.20	$1.20

EQUITY_AND_STOCKBASED_COMPENSA6

EQUITY AND STOCK-BASED COMPENSATION (Details 5) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013
Amounts reclassified from each component of accumulated comprehensive income	'	'
Cost of products sold	$770.70	$797.40
Revenues	1,069.40	1,090.50
Other income, net	490.6	2.2
Selling, general and administrative	265.6	252.7
Pre-tax	-456.1	-14.2
Income taxes	159.7	-0.4
Amounts reclassified from accumulated other comprehensive loss	-317.8	-10
Losses on qualifying cash flow hedges | Amount Reclassified from AOCI	'	'
Amounts reclassified from each component of accumulated comprehensive income	'	'
Pre-tax	0.1	0.6
Income taxes	'	-0.2
Amounts reclassified from accumulated other comprehensive loss	0.1	0.4
Losses on qualifying cash flow hedges | Commodity contracts | Amount Reclassified from AOCI	'	'
Amounts reclassified from each component of accumulated comprehensive income	'	'
Cost of products sold	0.1	'
Losses on qualifying cash flow hedges | FX forward contracts | Amount Reclassified from AOCI	'	'
Amounts reclassified from each component of accumulated comprehensive income	'	'
Revenues	'	0.6
Gain on available-for-sale securities | Amount Reclassified from AOCI	'	'
Amounts reclassified from each component of accumulated comprehensive income	'	'
Other income, net	0.3	'
Losses (gains) on pension and postretirement items | Amount Reclassified from AOCI	'	'
Amounts reclassified from each component of accumulated comprehensive income	'	'
Other income, net	7.4	'
Selling, general and administrative	'	-0.4
Pre-tax	7.4	-0.4
Income taxes	-2.4	0.1
Amounts reclassified from accumulated other comprehensive loss	$5	($0.30)

EQUITY_AND_STOCKBASED_COMPENSA7

EQUITY AND STOCK-BASED COMPENSATION (Details 6) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Dec. 18, 2013	Dec. 31, 2013	Mar. 29, 2014	Mar. 30, 2013
Total cash consideration paid for common stock repurchased	'	'	$134.30	$131.40
Common Stock In Treasury	'	'	'	'
Authorized repurchase amount under the written trading plan	500	'	'	'
Common stock repurchased (in shares)	'	115	1,316	1,514
Total cash consideration paid for common stock repurchased	'	11.2	134.3	104.4
Common stock repurchased in open market (in shares)	'	'	'	333
Total cash consideration paid for common stock repurchased in open market	'	'	'	27
Common Stock in Treasury	'	'	'	'
Decrease in stock by the settlement of restricted stock units	'	'	12	13.6
Increase in the stock for common stock surrendered by recipients of restricted stock as a means of funding minimum income tax withholding	'	'	$7.90	$9

EQUITY_AND_STOCKBASED_COMPENSA8

EQUITY AND STOCK-BASED COMPENSATION (Details 7) (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013	Dec. 31, 2013
Dividends	'	'	'
Annual dividend (in dollars per share)	$1.50	'	$1
Changes in Equity	'	'	'
Balance	$2,172	$2,235.50	'
Net income (loss)	317.8	10	'
Net unrealized gains (losses) on qualifying cash flow hedges, net of tax (provision) benefit	-0.7	4	'
Net unrealized gains (losses) on qualifying cash flow hedges, tax (provision) benefit	0.2	-2.5	'
Net unrealized gains (losses) on available-for-sale securities	3.5	-0.5	'
Pension liability adjustment, net of tax (provision) benefit	5.2	-1.5	'
Pension liability adjustment, tax (provision) benefit	-2.3	0.7	'
Foreign currency translation adjustments	-2.1	-87.8	'
Total comprehensive income (loss), net	323.7	-75.8	'
Dividends declared	-16.3	-11.4	'
Exercise of stock options and other incentive plan activity	13.6	10.1	'
Exercise of stock options and other incentive plan activity, tax benefit	8.8	5.8	'
Amortization of restricted stock and restricted stock unit grants	24.7	20.3	'
Restricted stock and restricted stock unit vesting, net of tax withholdings	-20.3	-20.5	'
Common stock repurchases	-134.3	-131.4	'
Other changes in noncontrolling interests	'	-0.2	'
Balance	2,363.10	2,026.60	'
SPX Corporation Shareholders' Equity	'	'	'
Changes in Equity	'	'	'
Balance	2,158	2,224.20	'
Net income (loss)	318.2	8.7	'
Net unrealized gains (losses) on qualifying cash flow hedges, net of tax (provision) benefit	-0.7	4	'
Net unrealized gains (losses) on available-for-sale securities	3.5	-0.5	'
Pension liability adjustment, net of tax (provision) benefit	5.2	-1.5	'
Foreign currency translation adjustments	-2	-87.2	'
Total comprehensive income (loss), net	324.2	-76.5	'
Dividends declared	-16.3	-11.4	'
Exercise of stock options and other incentive plan activity	13.6	10.1	'
Amortization of restricted stock and restricted stock unit grants	24.7	20.3	'
Restricted stock and restricted stock unit vesting, net of tax withholdings	-20.3	-20.5	'
Common stock repurchases	-134.3	-131.4	'
Balance	2,349.60	2,014.80	'
Noncontrolling Interests	'	'	'
Changes in Equity	'	'	'
Balance	14	11.3	'
Net income (loss)	-0.4	1.3	'
Foreign currency translation adjustments	-0.1	-0.6	'
Total comprehensive income (loss), net	-0.5	0.7	'
Other changes in noncontrolling interests	'	-0.2	'
Balance	$13.50	$11.80	'

CONTINGENT_LIABILITIES_AND_OTH1

CONTINGENT LIABILITIES AND OTHER MATTERS (Details) (USD $)	Mar. 29, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Contingencies and other matters	'	'
Carrying values of accruals	$611.40	$610.10
Accruals included in other long-term liabilities	561.4	561.8
Risk management matters	'	'
Contingencies and other matters	'	'
Carrying values of accruals	566.6	565
Insurance recovery assets	$496.70	$496.70

CONTINGENT_LIABILITIES_AND_OTH2

CONTINGENT LIABILITIES AND OTHER MATTERS (Details 2) (Site investigation and remediation)	Mar. 29, 2014	Dec. 31, 2013
	site	site
Site investigation and remediation	'	'
Environmental Matters	'	'
Number of sites	91	94
Number of third-party disposal sites for which entity is potentially responsible	25	23
Number of active sites	6	6

CONTINGENT_LIABILITIES_AND_OTH3

CONTINGENT LIABILITIES AND OTHER MATTERS (Details 3) (Consortium arrangements, Thermal Equipment and Services reportable segment, USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Dec. 31, 2013
Consortium arrangements | Thermal Equipment and Services reportable segment	'	'
Collaborative Arrangements	'	'
Entity's share of the aggregate contract value on open consortium arrangements	$142.30	$139.30
Percentage of entity's share of the aggregate contract value, recognized as revenue	88.00%	87.00%
Aggregate contract value on open consortium arrangements	447.9	433.8
Estimated fair value of potential obligation recorded as a liabilities	$0.70	$1.70

INCOME_TAXES_Details

INCOME TAXES (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2014	Mar. 30, 2013
Unrecognized Tax Benefits	'	'
Gross unrecognized tax benefits	$119.30	'
Net unrecognized tax benefits	78.1	'
Portion of unrecognized benefits which, if recognized, would impact future effective tax rates	77.5	'
Gross accrued interest	13.3	'
Net accrued interest	9.3	'
Penalties recorded	7.1	'
Reasonably possible amount that unrecognized tax benefits could decrease within next 12 months, low end of range	50	'
Reasonably possible amount that unrecognized tax benefits could decrease within next 12 months, high end of range	60	'
Other Tax Matters	'	'
Income tax provision from continuing operations	159.7	-0.4
Pre-tax income from continuing operations	456.1	14.2
Effective income tax rate (as a percent)	35.00%	-2.80%
Gain on sale of interest in EGS	491.2	'
Tax benefit related to the research and experimentation credit generated in 2012	'	3.2
Tax benefit related to the foreign tax credits	'	$2
Minimum	'	'
Other Tax Matters	'	'
Period during which state income tax returns are subject to examination	'3 years	'
Maximum	'	'
Other Tax Matters	'	'
Period during which state income tax returns are subject to examination	'5 years	'
Maximum period for which impact on state income tax returns of any federal changes remains subject to examination by various states	'1 year	'

FAIR_VALUE_Details

FAIR VALUE (Details) (USD $)

3 Months Ended

3 Months Ended

In Millions, unless otherwise specified

Mar. 29, 2014

Mar. 30, 2013

Mar. 29, 2014

Dec. 31, 2013

Mar. 29, 2014

Dec. 31, 2013

Mar. 29, 2014

Dec. 31, 2013

Mar. 29, 2014

Dec. 31, 2013

Mar. 29, 2014

Dec. 31, 2013

Mar. 29, 2014

Dec. 31, 2013

Mar. 29, 2014

Dec. 31, 2013

Mar. 29, 2014

Dec. 31, 2013

Mar. 29, 2014

Dec. 31, 2013

Mar. 29, 2014

Dec. 31, 2013

Mar. 29, 2014

Mar. 30, 2013

Mar. 29, 2014

Dec. 31, 2013

Senior notes

Senior notes

Senior notes

Senior notes

Term loan

Term loan

Term loan

Term loan

Other indebtedness

Other indebtedness

Other indebtedness

Other indebtedness

Quoted Prices in Active Markets for Identical Assets (Level 1)

Quoted Prices in Active Markets for Identical Assets (Level 1)

Significant Observable Inputs (Level 2)

Significant Observable Inputs (Level 2)

Significant Observable Inputs (Level 2)

Significant Observable Inputs (Level 2)

Significant Observable Inputs (Level 2)

Significant Observable Inputs (Level 2)

Significant Unobservable Inputs (Level 3)

Significant Unobservable Inputs (Level 3)

Significant Unobservable Inputs (Level 3)

Significant Unobservable Inputs (Level 3)

Carrying Amount

Carrying Amount

Fair Value

Fair Value

Carrying Amount

Carrying Amount

Fair Value

Fair Value

Carrying Amount

Carrying Amount

Fair Value

Fair Value

Other assets - Investments in equity securities

Other assets - Investments in equity securities

Other current assets - FX embedded derivatives, FX forward contracts and commodity contracts

Other current assets - FX embedded derivatives, FX forward contracts and commodity contracts

Accrued expenses - FX forward contracts, FX embedded derivatives and commodity contracts

Accrued expenses - FX forward contracts, FX embedded derivatives and commodity contracts

Other long-term liabilities - FX embedded derivatives

Other long-term liabilities - FX embedded derivatives

Recurring basis

Recurring basis

Other assets - Investments in equity securities

Other assets - Investments in equity securities

Nonrecurring basis

Nonrecurring basis

Nonrecurring basis

Nonrecurring basis

Nonrecurring basis

Nonrecurring basis

Nonrecurring basis

Nonrecurring basis

Nonrecurring basis

Nonrecurring basis

Nonrecurring basis

Nonrecurring basis

Recurring basis

Recurring basis

Recurring basis

Recurring basis

Recurring basis

Recurring basis

Recurring basis

Recurring basis

Recurring basis

Recurring basis

FAIR VALUE

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset transfers between levels

$0

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liability transfers between levels

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Assets and liabilities measured at fair value on a recurring basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of derivative assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5.3

3

1.9

2

'

'

'

'

'

'

3

1.4

Fair value of derivative liability

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8.1

6.8

1.5

2.1

'

'

'

'

Reconciliation of Equity Securities using Significant Unobservable Inputs (Level 3)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at beginning of period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.4

7.5

'

'

Unrealized gains (losses) recorded to earnings

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.6

-0.2

'

'

Balance at end of period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3

7.3

'

'

Fair value of other financial liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of debt instruments

'

'

$600

$1,100

$681.80

$1,214.30

$475

$475

$475

$475

$35.30

$27.60

$35.30

$27.60

'

'

'

'

'

'

'

'

'

'

'

'