Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended						12 Months Ended
	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 01, 2011	Jul. 02, 2011	Apr. 02, 2011	Dec. 31, 2012 Y M	Dec. 31, 2011	Dec. 31, 2010
Income (loss) from continuing operations:
United States							$ (111.9)	$ 8.0	$ 71.2
Foreign							65.4	161.9	152.4
Income (loss) from continuing operations before income taxes							(46.5)	169.9	223.6
Current:
United States								20.7	(33.1)
Foreign							20.9	29.3	17.1
Total current							20.9	50.0	(16.0)
Deferred and other:
United States							40.4	(43.1)	65.6
Foreign							(29.4)	7.4	(4.0)
Total deferred and other							11.0	(35.7)	61.6
Total provision							31.9	14.3	45.6
Reconciliation of the U.S. federal statutory tax rate to effective income tax rate
U.S. federal statutory rate (as a percent)							35.00%	35.00%	35.00%
State and local taxes, net of U.S. federal benefit (as a percent)							(8.80%)	1.30%	2.00%
U.S. credits and exemptions (as a percent)							10.70%	(8.70%)	(0.60%)
Foreign earnings taxed at lower rates (as a percent)							56.80%	(5.30%)	(10.80%)
Audit settlements with taxing authorities (as a percent)							59.40%	(0.40%)	(0.60%)
Adjustments to uncertain tax positions (as a percent)							(8.40%)	1.50%	(3.60%)
Changes in valuation allowance (as a percent)							(23.90%)	(18.40%)	(5.30%)
Law change regarding deductibility of Medicare Part D expenses (as a percent)									2.80%
Tax on repatriation of foreign earnings (as a percent)							(33.10%)	4.10%	1.60%
Impairment of goodwill and other intangible assets (as a percent)							(161.50%)
Other (as a percent)							5.20%	(0.70%)	(0.10%)
Effective income tax rate (as a percent)							(68.60%)	8.40%	20.40%
Deferred tax assets:
Working capital accruals	33.4		37.8				33.4	37.8
Legal, environmental and self-insurance accruals	39.0		45.6				39.0	45.6
Pension, other postretirement and postemployment benefits	186.8		169.9				186.8	169.9
NOL and credit carryforwards	193.2		242.5				193.2	242.5
Payroll and compensation	53.8		46.1				53.8	46.1
Other	96.2		71.0				96.2	71.0
Total deferred tax assets	602.4		612.9				602.4	612.9
Valuation allowance	(128.1)		(124.5)				(128.1)	(124.5)
Net deferred tax assets	474.3		488.4				474.3	488.4
Deferred tax liabilities:
Accelerated depreciation	61.5		36.1				61.5	36.1
Basis difference in affiliates	153.9		40.5				153.9	40.5
Intangibles recorded in acquisitions	312.9		344.5				312.9	344.5
Other	23.7		58.9				23.7	58.9
Total deferred tax liabilities	552.0		480.0				552.0	480.0
Deferred tax assets (liabilities), net	(77.7)		8.4				(77.7)	8.4
Operating Loss Carryforwards
Impairment charges related to cooling					24.7		285.9	28.3	1.7
Carryforwards expiring in 2013	15.0						15.0
Carryforwards expiring between 2013 and 2031	446.0						446.0
Decrease in valuation allowance recognized as a reduction in tax expense from continuing operations							5.4	31.2
Decrease in valuation allowance recognized as a (increase) decrease in tax expense from discontinued operations								7.7
Increase (decrease) in valuation allowance							3.6	(38.2)
Undistributed foreign earnings							1,580.0
Foreign earnings from the service solution sale to be repatriated in future							313.0
Foreign earnings from the service solution sale to be repatriated in future							100.8
Foreign withholding taxes recorded to discontinued operations							91.8
Gross unrecognized tax benefits	73.8		85.2				73.8	85.2	95.5
Net unrecognized tax benefits	37.9		68.0				37.9	68.0	77.4
Portion of unrecognized benefits which, if recognized, would impact future effective tax rates	37.4						37.4
Gross accrued interest	8.1		12.9				8.1	12.9	15.6
Net accrued interest	5.7		10.1				5.7	10.1	11.3
Gross interest income included in income tax provision							3.8	2.3	4.0
Reasonably possible amount that unrecognized tax benefits could decrease within next twelve months, low end of range	10.0						10.0
Reasonably possible amount that unrecognized tax benefits could decrease within next twelve months, high end of range	20.0						20.0
Aggregate changes in balance of unrecognized tax benefits
Unrecognized tax benefit - opening balance		85.2				95.5	85.2	95.5	120.9
Gross increases - tax positions in prior period							20.6	3.3	13.9
Gross decreases - tax positions in prior period							(33.9)	(11.4)	(13.4)
Gross increases - tax positions in current period							11.8	10.9	8.7
Settlements							(7.1)	(0.9)	(24.5)
Lapse of statute of limitations							(2.7)	(11.5)	(8.3)
Change due to foreign currency exchange rates							(0.1)	(0.7)	(1.8)
Unrecognized tax benefit - ending balance	73.8		85.2				73.8	85.2	95.5
Uncertain Tax Positions and Other Tax Matters
Income tax charges related to foreign dividends and undistributed foreign earnings that are no longer considered to be indefinitely reinvested	15.4						15.4
Tax expense partially offset with the deconsolidation of dry cooling business in China		6.1					6.1
Income tax charges related to valuation allowances recorded against deferred income tax assets	6.3						5.4
Tax benefit related to audit settlements and statute expirations	21.0						23.7
Income tax benefit associated with the release of the valuation allowance on existing foreign tax credit carryforwards				27.8				27.8
Tax benefits associated with the conclusion of a Canadian appeals process					2.5			2.5
Tax credits related to expansion of power transformer facility in Waukesha, WI			4.0	2.0	0.9	0.8		7.7
Income tax benefit partially offset by federal income taxes recorded in connection with plan to repatriate a portion of the earnings of a foreign subsidiary				6.9				6.9
Income tax benefit resulting from settlement with taxing authority recorded in continuing operations									18.2
Income tax benefit resulting from settlement with taxing authority recorded in discontinued operations									7.3
Favorable impact effective income tax rate related to uncertain tax positions									16.0
Domestic charge for the taxation of prescription drug costs for retirees that partially offset benefits									6.2
Repatriation of foreign earnings that partially offset benefits									3.6
Period within which federal income tax returns related matters are expected to be resolved (in months)							12
Maximum period for which impact on state income tax returns of any federal changes remains subject to examination by various states (in years)							1
Minimum
Operating Loss Carryforwards
State income tax returns subject to examination for a period (in years)							3
Maximum
Operating Loss Carryforwards
State income tax returns subject to examination for a period (in years)							5
Cooling
Operating Loss Carryforwards
Income tax benefit associated with the impairment charges related to cooling							26.3
Impairment charges related to cooling	281.4						281.4
State and Local Jurisdiction
Operating Loss Carryforwards
Tax loss carryforwards	366.0						366.0
Tax credit carryforwards	30.4						30.4
Foreign Country
Operating Loss Carryforwards
Tax loss carryforwards	$ 684.0						$ 684.0