POWER OF ATTORNEY
AND
CONFIRMING STATEMENT

KNOW ALL PERSONS BY THESE PRESENTS, that I hereby designate, appoint, and
constitute, and hereby confirm the designation, appointment and constitution of,
each of Maja Fabula, Jason M. Hollar, Paul D. Novas, Brandon B. Smith and
Kenneth R. Trammell as my true and lawful attorney-in-fact and agent, with full
power of substitution, for me and in my name, place and stead, in any and all
capacities, to execute and file on my behalf all Forms 3, 4 and 5 (including any
amendments thereto) that I may be required to file with the U.S. Securities and
Exchange Commission (the "SEC") and any stock exchange as a result of my direct
or indirect ownership of, or transactions in, securities of Tenneco Inc. or its
subsidiary companies.  I hereby further grant unto each said attorney-in-fact
and agent all full power and authority to do and perform each and every act and
thing requisite and necessary to be done in and about the premises, fully to all
intents and purposes as I might or could do in person, hereby ratifying and
confirming all that each said attorney-in-fact and agent or my substitute or
substitutes may lawfully do or cause to be done by virtue of the power and
authority granted hereunder to each attorney-in-fact including, without
limitation, the full power and authority to apply for, change or otherwise
access any codes or other authorizations necessary to make the filings with the
SEC.  The authority of Maja Fabula, Jason M. Hollar, Paul D. Novas, Brandon B.
Smith and Kenneth R. Trammell under this Power of Attorney and Confirming
Statement shall continue until I am no longer required to file Forms 3, 4 and 5
with regard to my direct or indirect ownership of or transactions in securities
of Tenneco Inc. or its subsidiary companies.

I hereby acknowledge Maja Fabula, Jason M. Hollar, Paul D. Novas, Brandon B.
Smith and Kenneth R. Trammell are not assuming any of the undersigned's
responsibilities to comply with Section 16 of the Securities Exchange Act of
1934, as amended.


Date:  November 13, 2017

Signed: /s/ Paul T. Stecko