Segment Information (Tables)

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Segment Information

The following table summarizes certain Tenneco Inc. segment information:

	Segments
	Clean Air		Ride Performance		Aftermarket		Total		Other			Reclass & Elims			Total
	(Millions)
At June 30, 2018 and for the Three Months Ended June 30, 2018
Revenues from external customers	$	1,694	$	506	$	337	$	2,537	$	—		$	—		$	2,537
Intersegment revenues	13		14		13		40		—			(40		)	—
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	105		5		50		160		(47		)	—			113
Total assets	2,957		1,094		896		4,947		—			56			5,003
At June 30, 2017 and for the Three Months Ended June 30, 2017
Revenues from external customers	$	1,539	$	442	$	336	$	2,317	$	—		$	—		$	2,317
Intersegment revenues	17		13		10		40		—			(40		)	—
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	106		18		54		178		(151		)	—			27
Total assets	2,907		1,075		872		4,854		—			27			4,881
At June 30, 2018 and for the Six Months Ended June 30, 2018
Revenues from external customers	$	3,450	$	1,019	$	642	$	5,111	$	—		$	—		$	5,111
Intersegment revenues	28		29		23		80		—			(80		)	—
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	224		13		85		322		(92		)	—			230
Total assets	2,957		1,094		896		4,947		—			56			5,003
At June 30, 2017 and for the Six Months Ended June 30, 2017
Revenues from external customers	$	3,094	$	870	$	645	$	4,609	$	—		$	—		$	4,609
Intersegment revenues	42		28		21		91		—			(91		)	—
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	200		45		96		341		(193		)	—			148
Total assets	2,907		1,075		872		4,854		—			27			4,881