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Reconciliation of Previously Reported Amounts to Amounts as Revised and Restated (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended |  | 12 Months Ended | 3 Months Ended | 12 Months Ended
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Dec. 31, 2013 | Sep. 28, 2013 | Jun. 29, 2013 | Mar. 30, 2013 | Dec. 31, 2012 | Sep. 29, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2012 As Previously Reported | Dec. 31, 2011 As Previously Reported | Dec. 31, 2012 Reclassification of Discontinued Operations | Dec. 31, 2011 Reclassification of Discontinued Operations | Dec. 31, 2013 Correction Of Prior Period Misstatement | Dec. 31, 2012 Correction Of Prior Period Misstatement | Dec. 31, 2011 Correction Of Prior Period Misstatement | Dec. 31, 2012 Correction Of Prior Period Misstatement Unidentified taxable earnings | Sep. 29, 2012 Correction Of Prior Period Misstatement Unidentified taxable earnings | Jun. 30, 2012 Correction Of Prior Period Misstatement Unidentified taxable earnings | Mar. 31, 2012 Correction Of Prior Period Misstatement Unidentified taxable earnings | Dec. 31, 2012 Correction Of Prior Period Misstatement Unidentified taxable earnings | Dec. 31, 2011 Correction Of Prior Period Misstatement Unidentified taxable earnings | Dec. 31, 2010 Correction Of Prior Period Misstatement Unidentified taxable earnings | Dec. 31, 2009 Correction Of Prior Period Misstatement Unidentified taxable earnings | Dec. 31, 2008 Correction Of Prior Period Misstatement Unidentified taxable earnings | Dec. 31, 2007 Correction Of Prior Period Misstatement Unidentified taxable earnings | Dec. 31, 2012 As Revised and Restated | Dec. 31, 2011 As Revised and Restated
Consolidated Statement of Operations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 1,319.0 | $ 1,145.8 | $ 1,161.9 | $ 1,090.5 | $ 1,366.0 | $ 1,176.7 | $ 1,182.0 | $ 1,106.3 | $ 4,717.2 | $ 4,831.0 | $ 4,272.9 |  | $ 5,100.2 | $ 4,536.9 | $ (269.2) | $ (264.0) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,831.0 | $ 4,272.9
Operating income (loss) |  |  |  |  |  |  |  |  | 329.6 | (142.4) | 237.0 |  | 9.0 | 286.5 | (32.1) | (33.4) | 443.3 | (119.3) | (16.1) |  |  |  |  |  |  |  |  |  |  | (23.1) | 253.1
Income (loss)from continuing operations before income taxes |  |  |  |  |  |  |  |  | 256.1 | (197.9) | 120.4 |  | (46.5) | 169.9 | (32.1) | (33.4) | 443.3 | (119.3) | (16.1) |  |  |  |  |  |  |  |  |  |  | (78.6) | 136.5
Income tax (provision) benefit |  |  |  |  |  |  |  |  | (54.8) | 21.3 | 12.3 |  | (31.9) | (14.3) | 12.3 | 11.8 | (170.6) | 42.3 | 4.1 |  |  |  |  | (1.4) | 10.7 | (4.9) | (6.1) | (18.0) | (24.8) | (21.0) | 8.2
Income (loss) from continuing operations | 84.4 | 63.1 | 39.2 | 14.6 | (275.7) | 53.8 | 35.5 | 9.8 | 201.3 | (176.6) | 132.7 |  | (78.4) | 155.6 | (19.8) | (21.6) | 272.7 | (77.0) | (12.0) | (1.7) | 0.1 | 0.1 | 0.1 | (1.4) | 10.7 |  |  |  |  | (99.6) | 144.7
Income from discontinued operations, net of tax | 2.5 | 5.4 | 8.0 | (4.6) | 321.0 | 12.0 | 18.2 | 8.6 | 11.3 | 359.8 | 43.5 |  | 340.4 | 30.0 | 19.8 | 21.6 | 3.1 | (0.4) | (8.1) |  |  |  |  |  |  |  |  |  |  | 360.2 | 51.6
Net income | 86.9 | 68.5 | 47.2 | 10.0 | 45.3 | 65.8 | 53.7 | 18.4 | 212.6 | 183.2 | 176.2 |  | 262.0 | 185.6 |  |  | 275.8 | (77.4) | (20.1) |  |  |  |  | (1.4) | 10.7 |  |  |  |  | 260.6 | 196.3
Net income attributable to SPX Corporation common shareholders | 87.0 | 69.3 | 45.2 | 8.7 | 45.0 | 63.4 | 52.9 | 19.1 | 210.2 | 180.4 | 171.2 |  | 259.2 | 180.6 |  |  | 275.8 | (77.4) | (20.1) |  |  |  |  | (1.4) | 10.7 |  |  |  |  | 257.8 | 191.3
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income taxes payable | 73.1 |  |  |  | 172.8 |  |  |  | 73.1 | 172.8 |  |  | 126.5 |  |  |  |  |  |  | 46.3 |  |  |  | 46.3 |  |  |  |  |  | 172.8 |
Total current liabilities | 2,174.4 |  |  |  | 1,782.9 |  |  |  | 2,174.4 | 1,782.9 |  |  | 1,736.6 |  |  |  |  |  |  | 46.3 |  |  |  | 46.3 |  |  |  |  |  | 1,782.9 |
Deferred and other income taxes | 427.2 |  |  |  | 249.3 |  |  |  | 427.2 | 249.3 |  |  | 251.1 |  |  |  |  |  |  | (1.8) |  |  |  | (1.8) |  |  |  |  |  | 249.3 |
Total long-term liabilities | 2,509.8 |  |  |  | 3,111.7 |  |  |  | 2,509.8 | 3,111.7 |  |  | 3,113.5 |  |  |  |  |  |  | (1.8) |  |  |  | (1.8) |  |  |  |  |  | 3,111.7 |
Equity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retained earnings | 2,303.1 |  |  |  | 2,138.4 |  |  |  | 2,303.1 | 2,138.4 | 2,008.9 |  | 2,696.6 | 2,488.3 |  |  | (237.9) | (513.7) | (436.3) | (44.5) |  |  |  | (44.5) | (43.1) | (53.8) |  |  |  | 2,652.1 | 2,445.2
Total SPX Corporation shareholders' equity | 2,158.0 |  |  |  | 2,224.2 |  |  |  | 2,158.0 | 2,224.2 |  |  | 2,268.7 | 2,227.3 |  |  |  |  |  | (44.5) |  |  |  | (44.5) | (43.1) | (53.8) |  |  |  | 2,224.2 | 2,184.2
Total equity | 2,172.0 |  |  |  | 2,235.5 |  |  |  | 2,172.0 | 2,235.5 | 2,194.2 | 2,050.2 | 2,280.0 | 2,237.3 |  |  |  |  |  | (44.5) |  |  |  | (44.5) | (43.1) | (53.8) |  |  |  | 2,235.5 | 2,194.2
Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 86.9 | 68.5 | 47.2 | 10.0 | 45.3 | 65.8 | 53.7 | 18.4 | 212.6 | 183.2 | 176.2 |  | 262.0 | 185.6 |  |  | 275.8 | (77.4) | (20.1) |  |  |  |  | (1.4) | 10.7 |  |  |  |  | 260.6 | 196.3
Less: Income from discontinued operations, net of tax | 2.5 | 5.4 | 8.0 | (4.6) | 321.0 | 12.0 | 18.2 | 8.6 | 11.3 | 359.8 | 43.5 |  | 340.4 | 30.0 | 19.8 | 21.6 | 3.1 | (0.4) | (8.1) |  |  |  |  |  |  |  |  |  |  | 360.2 | 51.6
Income (loss) from continuing operations | 84.4 | 63.1 | 39.2 | 14.6 | (275.7) | 53.8 | 35.5 | 9.8 | 201.3 | (176.6) | 132.7 |  | (78.4) | 155.6 | (19.8) | (21.6) | 272.7 | (77.0) | (12.0) | (1.7) | 0.1 | 0.1 | 0.1 | (1.4) | 10.7 |  |  |  |  | (99.6) | 144.7
Net cash from continuing operations |  |  |  |  |  |  |  |  | 98.6 | 49.3 | 206.2 |  | 84.7 | 252.5 | (35.4) | (46.3) |  |  |  |  |  |  |  |  |  |  |  |  |  | 49.3 | 206.2
Net cash from (used in) discontinued operations |  |  |  |  |  |  |  |  | 6.7 | 20.5 | 116.4 |  | (14.9) | 70.1 | 35.4 | 46.3 |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.5 | 116.4
Cash flows from (used in) investing activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash used in continuing operations |  |  |  |  |  |  |  |  | (48.0) | (94.9) | (892.0) |  | (97.6) | (893.8) | 2.7 | 1.8 |  |  |  |  |  |  |  |  |  |  |  |  |  | (94.9) | (892.0)
Net cash from (used in) discontinued operations |  |  |  |  |  |  |  |  | $ 1.3 | $ 1,125.6 | $ (52.3) |  | $ 1,128.3 | $ (50.5) | $ (2.7) | $ (1.8) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,125.6 | $ (52.3)

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