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Plant Closures (Details) - USD ($) | 3 Months Ended | 24 Months Ended
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2021
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Disposals | $ 4,000,000 | $ 6,000,000 |
Accelerated depreciation | 36,000,000 | 35,000,000 | $ 518,000,000
Depreciation expense | $ 466,000,000 | $ 453,000,000 |

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- Definition Accelerated depreciation + References No definition available. + Details
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Namespace Prefix: | tve_
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Balance Type: | debit
Period Type: | duration

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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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- Definition Amount of divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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