Maximum percentage of stock of certain first-tier foreign subsidiaries pledged to secure senior credit facility.

No definition available.

Name:	ten_MaximumPercentageOfStockOfCertainFirstTierForeignSubsidiariesPledgedToSecureSeniorCreditFacility
Namespace Prefix:	ten_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
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Period Type:	duration

- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

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

+ References

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Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
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+ Details

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Debt and Other Financing Arrangements - Senior Notes (Details)	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 MXN ($)	Mar. 17, 2021 USD ($)	Mar. 03, 2021	Dec. 14, 2020	Oct. 01, 2018 USD ($)
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt	$ 8,000,000	$ 2,000,000	$ 0
Maximum percentage of stock pledged	66.00%			66.00%	66.00%
Surety Bond
Debt Instrument [Line Items]
Commitments	$ 28,000,000				$ 600,000,000
Committed Letters of Credit
Debt Instrument [Line Items]
Commitments	42,000,000
Committed Letters of Credit \| Surety Bond
Debt Instrument [Line Items]
Commitments	$ 82,000,000				$ 1,700,000,000
4.875% Euro Fixed Rate Notes due 2022
Debt Instrument [Line Items]
Stated rate								4.875%
Senior Notes
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage of principal amount redeemed	100.00%
Senior Notes \| 5 3/8% Senior Notes due 2024
Debt Instrument [Line Items]
Stated rate	5.375%			5.375%	5.375%
Principal amount	$ 225,000,000	225,000,000		€ 225,000,000
Senior Notes \| 5.000% Senior Notes due 2026
Debt Instrument [Line Items]
Stated rate	5.00%			5.00%	5.00%
Principal amount	$ 500,000,000	500,000,000		€ 500,000,000
Senior Notes \| 5.000% Euro Fixed Rate Notes due 2024
Debt Instrument [Line Items]
Stated rate	5.00%			5.00%	5.00%	5.00%	5.00%
Principal amount	$ 0	428,000,000		€ 350,000,000
Senior Notes \| 7.875% Euro Fixed Rate Notes Due 2029
Debt Instrument [Line Items]
Stated rate	7.875%			7.875%	7.875%
Senior Notes \| 4.875% Euro Fixed Rate Notes due 2022
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage of principal amount redeemed	100.00%
Senior Notes \| 5.125% Senior Secured Notes Due 2029
Debt Instrument [Line Items]
Stated rate	5.125%			5.125%	5.125%	5.125%
Principal amount	$ 800,000,000	$ 0				$ 800,000,000
Line of Credit
Debt Instrument [Line Items]
Commitments									$ 4,900,000,000
Debt Instrument, Redemption, Period One \| Senior Notes
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	40.00%
Debt Instrument, Redemption, Period One \| Senior Notes \| 7.875% Euro Fixed Rate Notes Due 2029
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	7.875%
Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage of principal amount redeemed	101.00%
Debt Instrument, Redemption, Period Two \| Senior Notes \| 7.875% Euro Fixed Rate Notes Due 2029
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	107.875%
Debt Instrument, Redemption, Period Two \| Senior Notes \| 105.125% Senior Secured Notes Due 2029
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	105.125%
Debt Instrument, Redemption, Period Three
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage of principal amount redeemed	100.00%
Debt Instrument, Redemption, Period Four \| Senior Notes
Debt Instrument [Line Items]
Stated rate	101.00%			101.00%	101.00%