Earnings (Loss) per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Summary of Earnings (Loss) per Share of Common Stock

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

	Year Ended December 31
	2021		2020		2019
Net income (loss) attributable to Tenneco Inc.	$	35	$	(1,521)	$	(334)
Basic earnings (loss) per share —
Average shares of common stock outstanding	82,218,480		81,378,474		80,904,060
Earnings (loss) per average share of common stock	$	0.43	$	(18.69)	$	(4.12)
Diluted earnings (loss) per share —
Average shares of common stock outstanding	82,218,480		81,378,474		80,904,060
Effect of dilutive securities:
Restricted stock, RSUs and PSUs	1,381,547		—		—
Average shares of common stock outstanding including dilutive securities	83,600,027		81,378,474		80,904,060
Earnings (loss) per average share of common stock	$	0.42	$	(18.69)	$	(4.12)
Weighted average number of antidilutive stock-based awards excluded from the calculation of diluted earnings per share	1,787,410		2,346,904		1,868,274