Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax

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- Definition

Gain (Loss) On Disposition Of Oil And Gas And Timber Property, Net Of Tax

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- Definition

Other Asset Impairment Charges And Due From Affiliates, Allowance For Credit Loss

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Other Asset Impairment Charges And Due From Affiliates, Allowance For Credit Loss, Net Of Tax

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- Definition

Restructuring And Other Charges, Net Of Tax

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Restructuring and other charges

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- Definition

Amount of gain (loss) from deconsolidation of subsidiary and derecognition of group of assets constituting transfer of business or nonprofit activity, excluding conveyance of oil and gas mineral rights and transfer of good or service in contract with customer.

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Amount of cost of providing special or contractual termination benefits payable from defined benefit plan.

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The difference between the reacquisition price and the net carrying amount of the extinguished debt recognized currently as a component of income in the period of extinguishment, net of tax.

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- Definition

Amount of gain (loss) on sale or disposal of oil and gas property or timber property.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount after tax of loss recognized that results from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

No definition available.

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The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

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Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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Selected Quarterly Financial Data (Unaudited) - Narrative (Details) - USD ($) $ in Millions	3 Months Ended							12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Unusual Or Infrequent Item [Line Items]
Gain (Loss) on Disposition of Oil and Gas and Timber Property						$ 62.4	$ 29.3		$ 91.7
Gain (Loss) On Disposition Of Oil And Gas And Timber Property, Net Of Tax						60.5	27.3
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal								$ 0.0	(1.8)	$ 0.0
Restructuring and other charges	$ (1,105.1)	$ (2.3)	$ (16.7)	$ (8.0)	$ (4.5)			(1,132.1)	(4.5)	0.0
Gain on joint venture deconsolidation								0.0	0.0	15.9
Debt extinguishment charge			(21.5)		(21.6)			(21.5)	(21.6)	0.0
Debt extinguishment charge, net of tax			(21.1)		(20.5)
Non-cash joint venture impairment charge			(2.4)		(11.4)			(2.4)	(11.4)	0.0
Non-cash joint venture impairment charge, net of tax					(10.8)
Valuation allowance decrease due to change in judgment on the realizability of deferred tax assets	26.0		(99.0)		41.9				45.1
Restructuring And Other Charges, Net Of Tax			(16.4)	$ (5.5)	$ (4.3)
Impairment of goodwill			(287.0)					(287.0)	0.0	0.0
Goodwill, Impairment Loss, Net of Tax			$ (281.4)
Severance Costs	(33.5)							(60.5)
Other Restructuring Costs	(12.7)
Termination benefits	(17.4)							(17.4)
Other Asset Impairment Charges	$ (1,041.5)							(1,041.5)	0.0	0.0
Other Postretirement Benefits
Unusual Or Infrequent Item [Line Items]
Termination benefits								$ (6.7)	0.0	$ 0.0
Allegheny & Tsingshan Stainless
Unusual Or Infrequent Item [Line Items]
Non-cash joint venture impairment charge									(11.4)
Equity method investment ownership percentage	50.00%							50.00%
Forged Products
Unusual Or Infrequent Item [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal							(7.7)		(8.1)
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax							$ (7.2)
Cast Products
Unusual Or Infrequent Item [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal						6.2			6.2
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax						$ 6.0
Other Asset Impairment Charges									$ (10.2)
Tsingshan Group \| Allegheny & Tsingshan Stainless
Unusual Or Infrequent Item [Line Items]
Equity method investment ownership percentage	50.00%							50.00%