Debt and Other Financing Arrangements - Summary of Long-Term Debt Obligations (Details)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 EUR (€)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Carrying amount	$ 6,633,000,000		$ 5,375,000,000
Less - maturities classified as current	4,000,000		4,000,000
Total long-term debt	6,629,000,000		5,371,000,000
Unamortized debt issuance costs	80,000,000		76,000,000
Unamortized premium	(32,000,000)		(37,000,000)
Line of Credit \| Revolver Borrowings Due 2023
Debt Instrument [Line Items]
Principal	1,500,000,000		183,000,000
Carrying amount	1,500,000,000		183,000,000
Term Loans \| Tenneco Inc. Term Loan A
Debt Instrument [Line Items]
Principal	1,572,000,000		1,615,000,000
Carrying amount	$ 1,561,000,000		$ 1,608,000,000
Stated rate	2.00%	2.00%	1.75%
Term Loans \| Tenneco Inc. Term Loan B
Debt Instrument [Line Items]
Principal	$ 1,675,000,000		$ 1,683,000,000
Carrying amount	$ 1,614,000,000		1,623,000,000
Stated rate	3.00%	3.00%
Senior Notes \| 5.375% Senior Notes due 2024
Debt Instrument [Line Items]
Principal	$ 225,000,000	€ 225,000,000	225,000,000
Carrying amount	$ 223,000,000		222,000,000
Stated rate	5.375%	5.375%
Senior Notes \| 5.000% Senior Notes due 2026
Debt Instrument [Line Items]
Principal	$ 500,000,000	€ 500,000,000	500,000,000
Carrying amount	$ 494,000,000		494,000,000
Stated rate	5.00%	5.00%
Senior Notes \| 4.875% Euro Fixed Rate Notes due 2022
Debt Instrument [Line Items]
Principal	$ 466,000,000	€ 415,000,000	465,000,000
Carrying amount	$ 477,000,000		479,000,000
Stated rate	4.875%	4.875%
Senior Notes \| Euro Floating Rate Notes due 2024
Debt Instrument [Line Items]
Principal	$ 337,000,000	€ 300,000,000	336,000,000
Carrying amount	$ 340,000,000		340,000,000
Stated rate	4.875%	4.875%
Senior Notes \| 5.000% Euro Fixed Rate Notes due 2024
Debt Instrument [Line Items]
Principal	$ 393,000,000	€ 350,000,000	392,000,000
Carrying amount	$ 412,000,000		413,000,000
Stated rate	5.00%	5.00%
Other debt, primarily foreign instruments
Debt Instrument [Line Items]
Principal	$ 13,000,000		14,000,000
Carrying amount	$ 12,000,000		$ 13,000,000

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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