Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Summary of Earnings Per Share of Common Stock

Earnings per share of common stock outstanding were computed as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
	(Millions Except Share and Per Share Amounts)
Basic earnings per share —
Net income attributable to Tenneco Inc.	$	54	$	83	$	162	$	139
Weighted average shares of common stock outstanding	51,272,618		52,508,078		51,247,664		53,265,149
Earnings per share of common stock	$	1.05	$	1.57	$	3.17	$	2.61
Diluted earnings per share —
Net income attributable to Tenneco Inc.	$	54	$	83	$	162	$	139
Weighted average shares of common stock outstanding	51,272,618		52,508,078		51,247,664		53,265,149
Effect of dilutive securities:
Restricted stock, PSUs and RSUs	93,956		89,666		95,022		106,320
Stock options	35,255		89,912		53,241		130,395
Weighted average shares of common stock outstanding including dilutive securities	51,401,829		52,687,656		51,395,927		53,501,864
Earnings per share of common stock	$	1.05	$	1.57	$	3.16	$	2.60