New Accounting Pronouncements	12 Months Ended
Dec. 31, 2021
Accounting Changes And Error Corrections [Abstract]
New Accounting Pronouncements	2. New Accounting Pronouncements TEC considers the applicability and impact of all ASUs issued by the FASB. TEC was not required to and did not adopt any new ASUs in 2021.

The entire disclosure for change in accounting principle. Includes, but is not limited to, nature, reason, and method of adopting amendment to accounting standards or other change in accounting principle.

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