Amount of income tax expense (benefit) attributable to impairment losses.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended					6 Months Ended	9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Abstract]
Effective income tax rate	0.10%			(71.70%)			8.70%	(95.70%)
Income Taxes [Abstract]
Impairment charges (reversals) - net	$ (57.2)			$ 134.4			$ (55.7)	$ 134.4
Income tax benefits from impairment charges				(37.7)
Income Taxes [Abstract]
Income tax expense (benefit) related to change in deferred tax asset valuation allowance		$ 1.6		109.9	$ 6.6		(11.4)	$ 116.5
Foreign Jurisdictions [Member]
Income Taxes [Abstract]
Income tax expense (benefit) related to change in deferred tax asset valuation allowance	(8.2)		$ (4.8)				(13.0)
Valuation allowance	21.9						21.9
U.S. [Member]
Income Taxes [Abstract]
Valuation allowance	90.1						90.1
Liquid-Cooled Automotive Business [Member]
Income Taxes [Abstract]
Impairment charges (reversals) - net	$ (57.2)			$ 134.4		$ 1.2	$ (56.0)