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Acquisitions -Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended 1 Months Ended 3 Months Ended 1 Months Ended
Mar. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Aug. 31, 2011
Dec. 31, 2013
Dec. 31, 2014
Sep. 30, 2012
May 31, 2014
Business Acquisition [Line Items]                  
Noncontrolling Interest, Increase from Sale of Parent Equity Interest $ 1us-gaap_MinorityInterestDecreaseFromRedemptions $ 0us-gaap_MinorityInterestDecreaseFromRedemptions $ 68us-gaap_MinorityInterestDecreaseFromRedemptions $ 0us-gaap_MinorityInterestDecreaseFromRedemptions          
Clear Air Joint Venture in Thailand                  
Business Acquisition [Line Items]                  
Equity ownership percentage before additional acquisition         75.00%ten_EquityOwnershipPercentageBeforeAdditionalAcquisitions
/ us-gaap_BusinessAcquisitionAxis
= ten_ClearAirJointVentureinThailandMember
       
Equity ownership percentage after additional acquisition         100.00%ten_EquityOwnershipPercentageAfterAdditionalAcquisitions
/ us-gaap_BusinessAcquisitionAxis
= ten_ClearAirJointVentureinThailandMember
       
TTEC                  
Business Acquisition [Line Items]                  
Additional equity interest purchased in joint venture   20.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= ten_TennecoTonghaiDalianExhaustSystemCo.Ltd.Member
        20.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= ten_TennecoTonghaiDalianExhaustSystemCo.Ltd.Member
   
Payment to acquire additional interest in joint venture           9us-gaap_PaymentsToAcquireInterestInJointVenture
/ us-gaap_BusinessAcquisitionAxis
= ten_TennecoTonghaiDalianExhaustSystemCo.Ltd.Member
69us-gaap_PaymentsToAcquireInterestInJointVenture
/ us-gaap_BusinessAcquisitionAxis
= ten_TennecoTonghaiDalianExhaustSystemCo.Ltd.Member
   
Intellectual Property Rights | Emission Control Systems And Products                  
Business Acquisition [Line Items]                  
Acquired certain rights from Combustion Components Associates Inc               7us-gaap_FinitelivedIntangibleAssetsAcquired1
/ ten_AcquiredIntangibleAssetsByMajorClassAxis
= ten_IntellectualPropertyRightsMember
/ us-gaap_BusinessAcquisitionAxis
= ten_EmissionControlSystemsAndProductsMember
 
CHINA                  
Business Acquisition [Line Items]                  
Buisness Sale Percentage of Voting Interest Sold                 45.00%ten_BuisnessSalePercentageofVotingInterestSold
/ us-gaap_EquityInterestIssuedOrIssuableByTypeAxis
= country_CN
Proceeds from Sale of Equity Method Investments                 $ 4us-gaap_ProceedsFromSaleOfEquityMethodInvestments
/ us-gaap_EquityInterestIssuedOrIssuableByTypeAxis
= country_CN
Equity Ownership Percentage after Additional Sale                 55.00%ten_EquityOwnershipPercentageafterAdditionalSale
/ us-gaap_EquityInterestIssuedOrIssuableByTypeAxis
= country_CN
Equity Ownership Percentage Before Additional Sale                 100.00%ten_EquityOwnershipPercentageBeforeAdditionalSale
/ us-gaap_EquityInterestIssuedOrIssuableByTypeAxis
= country_CN