CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Net sales and operating revenues	$ 2,637	$ 4,504	$ 6,473	$ 8,988
Costs and expenses
Cost of sales (exclusive of depreciation and amortization)	2,498	3,801	5,837	7,671
Selling, general, and administrative	195	292	444	610
Depreciation and amortization	159	169	330	338
Engineering, research, and development	55	78	132	170
Restructuring charges, net and asset impairments	121	49	605	65
Goodwill and intangible impairment charges	0	0	383	60
Costs and expenses	3,028	4,389	7,731	8,914
Other income (expense)
Non-service pension and other postretirement benefit (costs) credits	1	(4)	2	(6)
Equity in earnings (losses) of nonconsolidated affiliates, net of tax	4	17	17	33
Other income (expense), net	11	13	19	16
Total other expense (income)	16	26	38	43
Earnings (loss) before interest expense, income taxes, and noncontrolling interests	(375)	141	(1,220)	117
Interest expense	(66)	(82)	(141)	(163)
Earnings (loss) before income taxes and noncontrolling interests	(441)	59	(1,361)	(46)
Income tax (expense) benefit	101	(14)	195	(14)
Net income (loss)	(340)	45	(1,166)	(60)
Less: Net income (loss) attributable to noncontrolling interests	10	19	23	31
Net income (loss) attributable to Tenneco Inc.	$ (350)	$ 26	$ (1,189)	$ (91)
Basic earnings (loss) per share:
Earnings (loss) per share (in dollars per share)	$ (4.30)	$ 0.32	$ (14.64)	$ (1.13)
Weighted average shares outstanding (in shares)	81,350,773	80,920,825	81,259,667	80,897,731
Diluted earnings (loss) per share:
Earnings (loss) per share (in dollars per share)	$ (4.30)	$ 0.32	$ (14.64)	$ (1.13)
Weighted average shares outstanding (in shares)	81,350,773	80,920,825	81,259,667	80,897,731