Debt and Other Financing Arrangements - Financing Arrangements (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Available	$ 0
Liquidity	1,400,000,000
Letters of credit
Debt Instrument [Line Items]
Available	65,000,000
Line of Credit | Revolver Borrowings Due 2023
Debt Instrument [Line Items]
Principal	1,500,000,000	$ 183,000,000
Tenneco Inc. revolving credit agreement
Debt Instrument [Line Items]
Available	0
Tenneco Inc. Term Loan A
Debt Instrument [Line Items]
Available	0
Tenneco Inc. Term Loan B
Debt Instrument [Line Items]
Available	0
Subsidiaries’ credit agreements
Debt Instrument [Line Items]
Available	$ 0