Tenneco (TEN) 10-Q 6 Aug 19 2019 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2019	Aug. 02, 2019
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2019
Document Transition Report	false
Entity File Number	1-12387
Entity Registrant Name	TENNECO INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	76-0515284
Entity Address, Address Line One	500 North Field Drive
Entity Address, City or Town	Lake Forest
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60045
City Area Code	847
Local Phone Number	482-5000
Entity Shell Company	false
Title of 12(b) Security	Class A Voting Common Stock, par value $0.01 per share
Trading Symbol	TEN
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Central Index Key	0001024725
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false
Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		57,126,858
Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		23,793,669

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues
Net sales and operating revenues	$ 4,504		$ 2,533	$ 8,988	$ 5,114
Costs and expenses
Cost of sales	3,793		2,134	7,657	4,327
Selling, general, and administrative	288		154	604	305
Depreciation and amortization	169		60	338	120
Engineering, research, and development	78		39	170	79
Restructuring charges and asset impairments	61		29	85	41
Goodwill impairment charge	0	$ 60	0	60	0
Costs and expenses	4,389		2,416	8,914	4,872
Other expense (income)
Non-service pension and other postretirement benefit costs (credits)	4		3	6	6
Equity in (earnings) losses of nonconsolidated affiliates, net of tax	(17)		0	(33)	0
Other expense (income), net	(13)		3	(16)	3
Total other expense (income)	(26)		6	(43)	9
Earnings (loss) before interest expense, income taxes, and noncontrolling interests	141		111	117	233
Interest expense	82		22	163	45
Earnings (loss) before income taxes and noncontrolling interests	59		89	(46)	188
Income tax expense (benefit)	14		26	14	51
Net income (loss)	45		63	(60)	137
Less: Net income (loss) attributable to noncontrolling interests	19		16	31	30
Net income (loss) attributable to Tenneco Inc.	$ 26		$ 47	$ (91)	$ 107
Basic earnings (loss) per share:
Earnings (loss) per share (in dollars per share)	$ 0.32		$ 0.92	$ (1.13)	$ 2.08
Weighted average shares outstanding (in shares)	80,920,825		51,258,668	80,897,731	51,232,639
Diluted earnings (loss) per share:
Earnings (loss) per share (in dollars per share)	$ 0.32		$ 0.92	$ (1.13)	$ 2.07
Weighted average shares outstanding (in shares)	80,920,825		51,607,224	80,897,731	51,546,015

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 45	$ 63	$ (60)	$ 137
Other comprehensive income (loss) — net of tax
Foreign currency translation adjustment	(18)	(99)	17	(72)
Cash flow hedges	(3)	0	1	0
Defined benefit plans	(2)	4	(1)	7
Other comprehensive income (loss) — net of tax	(23)	(95)	17	(65)
Comprehensive income (loss)	22	(32)	(43)	72
Less: Comprehensive income (loss) attributable to noncontrolling interests	18	9	36	31
Comprehensive income (loss) attributable to common shareholders	$ 4	$ (41)	$ (79)	$ 41

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 384	$ 697
Restricted cash	6	5
Receivables:
Customer notes and accounts, net	2,754	2,487
Other	93	85
Inventories	2,207	2,245
Prepayments and other current assets	550	590
Total current assets	5,994	6,109
Property, plant and equipment, net	3,569	3,501
Long-term receivables, net	10	10
Goodwill	799	869
Intangibles, net	1,649	1,519
Investments in nonconsolidated affiliates	531	544
Deferred income taxes	480	467
Other assets	560	213
Total assets	13,592	13,232
Current liabilities:
Short-term debt, including current maturities of long-term debt	170	153
Accounts payable	2,725	2,759
Accrued compensation and employee benefits	391	343
Accrued income taxes	0	64
Accrued expenses and other current liabilities	1,024	1,001
Total current liabilities	4,310	4,320
Long-term debt	5,508	5,340
Deferred income taxes	110	88
Pension and postretirement benefits	1,129	1,167
Deferred credits and other liabilities	546	263
Commitments and contingencies (Note 13)
Total liabilities	11,603	11,178
Redeemable noncontrolling interests	145	138
Tenneco Inc. shareholders’ equity:
Preferred stock — $0.01 par value; none issued	0	0
Additional paid-in capital	4,371	4,360
Accumulated other comprehensive loss	(680)	(692)
Accumulated deficit	(1,124)	(1,013)
Total shareholders equity before treasury stock	2,568	2,656
Shares held as treasury stock — at cost: June 30, 2019 and December 31, 2018 — 14,592,888 shares	(930)	(930)
Tenneco Inc. shareholders’ equity	1,638	1,726
Noncontrolling interests	206	190
Total equity	1,844	1,916
Total liabilities, redeemable noncontrolling interests and equity	13,592	13,232
Class A voting stock — $0.01 par value; shares issued: June 30, 2019 — 71,746,952 and December 31, 2018 — 71,675,379
Tenneco Inc. shareholders’ equity:
Common stock	1	1
Class B non-voting convertible stock — $0.01 par value; shares issued: June 30, 2019 — 23,793,669 and December 31, 2018 — 23,793,669
Tenneco Inc. shareholders’ equity:
Common stock	$ 0	$ 0

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares issued (in shares)	0	0
Treasury shares (in shares)	14,592,888	14,592,888
Class A
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	71,746,952	71,675,379
Treasury shares (in shares)	14,592,888
Class B
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	23,793,669	23,793,669
Treasury shares (in shares)	0

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating Activities
Net income (loss)	$ (60)	$ 137
Adjustments to reconcile net income (loss) to cash provided (used) by operating activities:
Goodwill impairment charge	60	0
Depreciation and amortization	338	120
Deferred income taxes	(14)	(9)
Stock-based compensation	13	7
Restructuring charges and asset impairments, net of cash paid	14	10
Change in pension and other postretirement benefit plans	(32)	2
Equity in earnings of nonconsolidated affiliates	(33)	0
Cash dividends received from nonconsolidated affiliates	27	0
Loss (gain) on sale of assets	(1)	0
Changes in operating assets and liabilities:
Receivables	(401)	(233)
Inventories	101	(51)
Payables and accrued expenses	48	206
Accrued interest and accrued income taxes	(66)	(2)
Other assets and liabilities	(94)	(109)
Net cash provided (used) by operating activities	(100)	78
Investing Activities
Proceeds from sale of assets	5	5
Net proceeds from sale of business	22	0
Cash payments for property, plant, and equipment	(379)	(174)
Acquisition of business, net of cash acquired	(158)	0
Proceeds from deferred purchase price of factored receivables	147	66
Other	(1)	2
Net cash used by investing activities	(364)	(101)
Financing Activities
Proceeds from term loans and notes	111	9
Repayments of term loans and notes	(190)	(28)
Borrowings on revolving lines of credit	4,525	2,669
Payments on revolving lines of credit	(4,254)	(2,614)
Issuance (repurchase) of common shares	(2)	(1)
Cash dividends	(20)	(25)
Net increase (decrease) in bank overdrafts	(8)	(7)
Other	(1)	(22)
Distributions to noncontrolling interest partners	(20)	(28)
Net cash (used) provided by financing activities	141	(47)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	11	(11)
Decrease in cash, cash equivalents and restricted cash	(312)	(81)
Cash, cash equivalents and restricted cash, beginning of period	702	318
Cash, cash equivalents and restricted cash, end of period	390	237
Supplemental Cash Flow Information
Cash paid during the period for interest	145	40
Cash paid during the period for income taxes, net of refunds	100	56
Non-cash Investing Activities
Period end balance of accounts payable for property, plant, and equipment	116	54
Deferred purchase price of receivables factored in the period	$ 52	$ 71

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Total Tenneco Inc. Shareholders' Equity	Noncontrolling Interests	Total Equity
Balance at beginning of period at Dec. 31, 2017			$ (930)	$ 3,112	$ (1,009)	$ (538)	$ 636	$ 46	$ 682
Beginning balance (in shares) at Dec. 31, 2017		1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)					60		60	7	67
Foreign currency translation adjustments						19	19	7	26
Defined benefit plans						3	3		3
Comprehensive income (loss)							82	14	96
Adjustments to adopt new accounting standards					(1)		(1)		(1)
Stock-based compensation, net				3			3		3
Cash dividends declared					(13)		(13)		(13)
Ending balance (in shares) at Mar. 31, 2018		1
Balance at end of period at Mar. 31, 2018			(930)	3,115	(963)	(516)	707	60	767
Balance at beginning of period at Dec. 31, 2017			(930)	3,112	(1,009)	(538)	636	46	682
Beginning balance (in shares) at Dec. 31, 2017		1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 107				107		107		121
Foreign currency translation adjustments	(72)					(73)	(73)		(71)
Derivatives	0
Defined benefit plans	7					7	7		7
Comprehensive income (loss)	72
Dividends					25		25		43
Purchase accounting measurement period adjustment	0
Ending balance (in shares) at Jun. 30, 2018		1
Balance at end of period at Jun. 30, 2018			(930)	3,118	(928)	(604)	657	44	701
Balance at beginning of period at Mar. 31, 2018			(930)	3,115	(963)	(516)	707	60	767
Beginning balance (in shares) at Mar. 31, 2018		1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	47				47		47	7	54
Foreign currency translation adjustments	(99)					(92)	(92)	(5)	(97)
Derivatives	0
Defined benefit plans	4					4	4		4
Comprehensive income (loss)	(32)						(41)	2	(39)
Stock-based compensation, net				3			3		3
Dividends					12		12		30
Cash dividends declared							(12)		(12)
Distributions declared to noncontrolling interests								(18)	(18)
Ending balance (in shares) at Jun. 30, 2018		1
Balance at end of period at Jun. 30, 2018			(930)	3,118	(928)	(604)	657	44	701
Balance at beginning of period at Dec. 31, 2018	1,916		(930)	4,360	(1,013)	(692)	1,726	190	1,916
Beginning balance (in shares) at Dec. 31, 2018		1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)					(117)		(117)	7	(110)
Foreign currency translation adjustments						29	29	4	33
Derivatives						4	4		4
Defined benefit plans						1	1		1
Comprehensive income (loss)							(83)	11	(72)
Stock-based compensation, net				5			5		5
Cash dividends declared					(20)		(20)		(20)
Purchase accounting measurement period adjustment								(1)	(1)
Distributions declared to noncontrolling interests								(1)	(1)
Ending balance (in shares) at Mar. 31, 2019		1
Balance at end of period at Mar. 31, 2019			(930)	4,365	(1,150)	(658)	1,628	199	1,827
Balance at beginning of period at Dec. 31, 2018	1,916		(930)	4,360	(1,013)	(692)	1,726	190	1,916
Beginning balance (in shares) at Dec. 31, 2018		1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(91)
Foreign currency translation adjustments	17
Derivatives	1
Defined benefit plans	(1)
Comprehensive income (loss)	(43)
Purchase accounting measurement period adjustment	(8)
Ending balance (in shares) at Jun. 30, 2019		1
Balance at end of period at Jun. 30, 2019	1,844		(930)	4,371	(1,124)	(680)	1,638	206	1,844
Balance at beginning of period at Mar. 31, 2019			(930)	4,365	(1,150)	(658)	1,628	199	1,827
Beginning balance (in shares) at Mar. 31, 2019		1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	26				26		26	9	35
Foreign currency translation adjustments	(18)					(17)	(17)		(17)
Derivatives	(3)					(3)	(3)		(3)
Defined benefit plans	(2)					(2)	(2)		(2)
Comprehensive income (loss)	22						4	9	13
Stock-based compensation, net				6			6		6
Distributions declared to noncontrolling interests								(2)	(2)
Ending balance (in shares) at Jun. 30, 2019		1
Balance at end of period at Jun. 30, 2019	$ 1,844		$ (930)	$ 4,371	$ (1,124)	$ (680)	$ 1,638	$ 206	$ 1,844

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Cash dividends (in dollars per share)	$ 0.25	$ 0.25	$ 0.25

Description of Business

Description of Business	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	1. Description of Business Tenneco Inc. ("Tenneco" or "the Company") was formed under the laws of Delaware in 1996. Tenneco designs, manufactures, and sells products and services for light vehicle, commercial truck, off-highway, industrial, and aftermarket customers. The Company is one of the world's leading manufacturers of clean air, powertrain, and ride performance products and systems, and serves both original equipment manufacturers ("OEM") and replacement markets worldwide. On January 10, 2019, the Company completed the acquisition of a 90.5% ownership interest in Öhlins Intressenter AB (“Öhlins”, the "Öhlins Acquisition"), a Swedish technology company that develops premium suspension systems and components for the automotive and motorsport industries. On October 1, 2018, the Company completed the acquisition of a 100%

Summary of Accounting Policies

Summary of Accounting Policies	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Summary of Accounting Policies	2. Summary of Significant Accounting Policies Basis of Presentation — Interim Financial Statements Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States ("U.S. GAAP") have been condensed or omitted pursuant to such rules and regulations. These statements include all adjustments (consisting of normal recurring adjustments) management believes are necessary to fairly state the results of operations, comprehensive income, financial position, changes in shareholders' equity, and cash flows. The Company's management believes the disclosures are adequate to make the information presented not misleading when read in conjunction with the audited consolidated financial statements and the notes thereto included in its Annual Report on Form 10-K for the year ended December 31, 2018 , which was filed with the Securities and Exchange Commission on March 18, 2019. Operating results for the three and six months ended June 30, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019 . The Company expects to separate its businesses to form two new, independent publicly traded companies, an Aftermarket and Ride Performance company ("DRiV") and a new Powertrain Technology company ("New Tenneco"). The Company currently expects the separation of the businesses to occur through a spinoff transaction of DRiV in mid-2020. In preparation for the spinoff, the Company began to manage and report its DRiV businesses through two new operating segments, in the first quarter of 2019, as compared to the three operating segments it had previously reported. The DRiV operating segments consist of Motorparts and Ride Performance. The new Motorparts operating segment consists of the previously reported Aftermarket operating segment as well as the aftermarket portion of the previously reported Motorparts operating segment. The Ride Performance operating segment consists of the previously reported Ride Performance operating segment as well as the OE Braking business that was included in the previously reported Motorparts operating segment. As such, prior period operating segment results and related disclosures have been conformed to reflect the Company's current operating segments. The future New Tenneco consists of two existing operating segments, Powertrain and Clean Air. See Note 17, Segment Information . Redeemable Noncontrolling Interests — The Company has noncontrolling interests with redemption features. These redemption features could require the Company to make an offer to purchase the noncontrolling interests at fair value in the event of a change in control of Tenneco Inc. or certain of its subsidiaries. The redemption of these redeemable noncontrolling interests is not solely within the Company's control. Accordingly, these noncontrolling interests are presented in the temporary equity section of the Company's condensed consolidated balance sheets. The Company does not believe it is probable the redemption features related to these noncontrolling interest securities will be triggered, as a change in control event is generally not probable until it occurs, except as discussed in Note 3, Acquisitions and Divestitures , for the redeemable noncontrolling interests from the Acquisitions. The following is a rollforward of activities in the Company's redeemable noncontrolling interests: Six Months Ended June 30, 2019 2018 Balance at beginning of period $ 138 $ 42 Net income (loss) attributable to redeemable noncontrolling interests 15 16 Other comprehensive income (loss) 1 (1 ) Acquisition and other 16 — Purchase accounting measurement period adjustment (8 ) — Dividends declared (17 ) (19 ) Balance at end of period $ 145 $ 38 The Company recorded a decrease to the redeemable noncontrolling interests of $8 million from the Federal-Mogul Acquisition, as a result of adjustments made in the measurement period to the preliminary purchase price allocation. The purchase price allocations for the Acquisitions are preliminary and subject to finalization. The Company's current estimates and assumptions may change as a result. See Note 3, Acquisitions and Divestitures for additional information. Earnings (loss) per share — Basic earnings (loss) per share is calculated by dividing net earnings (loss) by the weighted average shares outstanding during the period. Diluted earnings (loss) per share reflects the weighted average effect of all potentially dilutive securities from the date of issuance. Actual weighted average shares outstanding used in calculating earnings (loss) per share were: Three Months Ended June 30, Six months ended June 30, 2019 2018 2019 2018 Weighted average shares of common stock outstanding 80,920,825 51,258,668 80,897,731 51,232,639 Effect of dilutive securities: Restricted stock, PSUs and RSUs — 298,826 — 251,971 Stock options — 49,730 — 61,405 Dilutive shares outstanding 80,920,825 51,607,224 80,897,731 51,546,015 For the three and six months ended June 30, 2019 , the calculation of diluted earnings (loss) per share excluded 1,990,099 and 1,850,850 of share-based awards, as the effect on the calculation would have been anti-dilutive. For the three and six months ended June 30, 2018 , the calculation of diluted earnings (loss) per share excluded 123,773 and 123,947 of share-based awards, as the effect on the calculation would have been anti-dilutive. Revision of Previously Issued Financial Statements The Company identified an error in the accounting for certain costs capitalized into inventory that did not constitute inventoriable costs in its historical financial statements. The Company also revised for other immaterial errors related to various line items. As a result, certain amounts in the condensed consolidated financial statements have been revised for the three and six month periods ended June 30, 2018 . These revisions were not material to the previously issued financial statements and are presented in the tables below. Reclassifications: Certain amounts in the prior years have been aggregated or disaggregated to conform to current year presentation. These reclassifications have no effect on previously reported earnings before income taxes and noncontrolling interests or net income, other comprehensive income (loss), current or total assets, current or total liabilities, and the cash provided (used) by operating, investing or financing activities within the condensed consolidated financial statements. The following tables present the effects of these reclassifications and revisions for the condensed consolidated financial statement line items adjusted in the affected periods included within this quarterly report: Three Months Ended June 30, 2018 As Reported Reclasses As Reclassified Revisions As Revised Condensed consolidated statement of income (loss) Revenues Net sales and operating revenues $ 2,537 $ — $ 2,537 $ (4 ) $ 2,533 Costs and expenses Cost of sales 2,159 (23 ) 2,136 (2 ) 2,134 Selling, general, and administrative 156 (2 ) 154 — 154 Depreciation and amortization 59 — 59 1 60 Engineering, research, and development 42 (4 ) 38 1 39 Restructuring charges and asset impairments — 29 29 — 29 2,416 — 2,416 — 2,416 Other expense (income) Loss on sale of receivables 2 (2 ) — — — Non-service pension and other postretirement benefit costs (credits) — 3 3 — 3 Other expense (income), net 6 (3 ) 3 — 3 8 (2 ) 6 — 6 Earnings (loss) before interest expense, income taxes, and noncontrolling interests 113 2 115 (4 ) 111 Interest expense 20 2 22 — 22 Earnings (loss) before income taxes and noncontrolling interests 93 — 93 (4 ) 89 Income tax expense (benefit) 27 — 27 (1 ) 26 Net income (loss) 66 — 66 (3 ) 63 Less: Net income (loss) attributable to noncontrolling interests 16 — 16 — 16 Net income (loss) attributable to Tenneco Inc. $ 50 $ — $ 50 $ (3 ) $ 47 Earnings (loss) per share Basic earnings (loss) per share of common stock $ 0.98 $ — $ 0.98 $ (0.06 ) $ 0.92 Diluted earnings (loss) per share of common stock $ 0.98 $ — $ 0.98 $ (0.06 ) $ 0.92 Three Months Ended June 30, 2018 As Reported Reclasses As Reclassified Revisions As Revised Condensed consolidated statement of comprehensive income (loss) Net income (loss) $ 66 $ — $ 66 $ (3 ) $ 63 Other comprehensive income (loss)—net of tax Foreign currency translation adjustment (100 ) — (100 ) 1 (99 ) Defined benefit plans 4 — 4 — 4 (96 ) — (96 ) 1 (95 ) Comprehensive income (loss) (30 ) — (30 ) (2 ) (32 ) Less: Comprehensive income (loss) attributable to noncontrolling interests 9 — 9 — 9 Comprehensive income (loss) attributable to common shareholders $ (39 ) $ — $ (39 ) $ (2 ) $ (41 ) Six months ended June 30, 2018 As Reported Reclasses As Reclassified Revisions As Revised Condensed consolidated statement of income (loss) Revenues Net sales and operating revenues $ 5,111 $ — $ 5,111 $ 3 $ 5,114 Costs and expenses Cost of sales 4,357 (32 ) 4,325 2 4,327 Selling, general, and administrative 309 (4 ) 305 — 305 Depreciation and amortization 118 — 118 2 120 Engineering, research, and development 83 (5 ) 78 1 79 Restructuring charges and asset impairments — 41 41 — 41 4,867 — 4,867 5 4,872 Other expense (income) Loss on sale of receivables 5 (5 ) — — — Non-service pension and other postretirement benefit costs (credits) — 6 6 — 6 Other expense (income), net 9 (6 ) 3 — 3 14 (5 ) 9 — 9 Earnings (loss) before interest expense, income taxes, and noncontrolling interests 230 5 235 (2 ) 233 Interest expense 40 5 45 — 45 Earnings (loss) before income taxes and noncontrolling interests 190 — 190 (2 ) 188 Income tax expense (benefit) 52 — 52 (1 ) 51 Net income (loss) 138 — 138 (1 ) 137 Less: Net income (loss) attributable to noncontrolling interests 30 — 30 — 30 Net income (loss) attributable to Tenneco Inc. $ 108 $ — $ 108 $ (1 ) $ 107 Earnings (loss) per share Basic earnings (loss) per share of common stock $ 2.12 $ — $ 2.12 $ (0.04 ) $ 2.08 Diluted earnings (loss) per share of common stock $ 2.10 $ — $ 2.10 $ (0.03 ) $ 2.07 Six months ended June 30, 2018 As Reported Reclasses As Reclassified Revisions As Revised Condensed consolidated statement of comprehensive income (loss) Net income (loss) $ 138 $ — $ 138 $ (1 ) $ 137 Other comprehensive income (loss)—net of tax Foreign currency translation adjustment (73 ) — (73 ) 1 (72 ) Defined benefit plans 7 — 7 — 7 (66 ) — (66 ) 1 (65 ) Comprehensive income (loss) 72 — 72 — 72 Less: Comprehensive income (loss) attributable to noncontrolling interests 31 — 31 — 31 Comprehensive income (loss) attributable to common shareholders $ 41 $ — $ 41 $ — $ 41 Six months ended June 30, 2018 As Reported Reclasses As Reclassified Revisions As Revised Condensed consolidated statements of cash flow Operating Activities Net income (loss) $ 138 $ — $ 138 $ (1 ) $ 137 Net cash provided by (used by) operating activities 78 — 78 — 78 Investing Activities Net cash used by investing activities (101 ) — (101 ) — (101 ) Financing Activities Proceeds from term loans and notes — — — 9 9 Repayments of term loans and notes — (12 ) (12 ) (16 ) (28 ) Retirement of long-term debt (12 ) 12 — — — Borrowings on revolving lines of credit — — — 2,669 2,669 Payments on revolving lines of credit — — — (2,614 ) (2,614 ) Net increase (decrease) in revolver borrowings 48 — 48 (48 ) — Issuance (repurchase) of common shares (1 ) — (1 ) — (1 ) Cash dividends (25 ) — (25 ) — (25 ) Debt issuance cost of long-term debt (2 ) 2 — — — Purchase of common stock under the share repurchase program — — — — — Net increase (decrease) in bank overdrafts (7 ) — (7 ) — (7 ) Net increase (decrease) in short-term borrowings secured by accounts receivable (20 ) 20 — — — Other — (22 ) (22 ) — (22 ) Distributions to noncontrolling interest partners (28 ) — (28 ) — (28 ) Net cash provided by (used by) financing activities (47 ) — (47 ) — (47 ) Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash (11 ) — (11 ) — (11 ) Increase (decrease) in cash, cash equivalents and restricted cash (81 ) — (81 ) — (81 ) Cash, cash equivalents and restricted cash, beginning of period 318 — 318 — 318 Cash, cash equivalents and restricted cash, end of period $ 237 $ — $ 237 $ — $ 237 Three Months Ended June 30, 2018 As Reported Revisions As Revised Condensed consolidated statements of changes in shareholders' equity Accumulated Deficit Balance March 31 $ (902 ) $ (61 ) $ (963 ) Net income (loss) attributable to Tenneco Inc. 50 (3 ) 47 Cash dividends declared (12 ) — (12 ) Balance June 30 $ (864 ) $ (64 ) $ (928 ) Accumulated Other Comprehensive Income (loss) Balance March 31 $ (519 ) $ 3 $ (516 ) Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (93 ) 1 (92 ) Defined benefit plans 4 — 4 Balance June 30 $ (608 ) $ 4 $ (604 ) Total Tenneco Inc. Shareholders' Equity Balance March 31 $ 765 $ (58 ) $ 707 Net income (loss) attributable to Tenneco Inc. 50 (3 ) 47 Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (93 ) 1 (92 ) Defined benefit plans 4 — 4 Comprehensive income (loss) (39 ) (2 ) (41 ) Cash dividends (12 ) — (12 ) Common Stock Issued 3 — 3 Balance June 30 $ 717 $ (60 ) $ 657 Total Equity Balance March 31 $ 825 $ (58 ) $ 767 Net income (loss) 57 (3 ) 54 Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (98 ) 1 (97 ) Defined benefit plans 4 — 4 Comprehensive income (loss) (37 ) (2 ) (39 ) Common Stock Issued 3 — 3 Cash dividends (30 ) — (30 ) Balance June 30 $ 761 $ (60 ) $ 701 Six months ended June 30, 2018 As Reported Revisions As Revised Condensed consolidated statements of changes in shareholders' equity Accumulated Deficit Balance January 1 $ (946 ) $ (63 ) $ (1,009 ) Net income (loss) attributable to Tenneco Inc. 108 (1 ) 107 Cash dividends declared (25 ) — (25 ) Adjustments to adopt new accounting standards (1 ) — (1 ) Balance June 30 $ (864 ) $ (64 ) $ (928 ) Accumulated Other Comprehensive Income (loss) Balance January 1 $ (541 ) $ 3 $ (538 ) Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (74 ) 1 (73 ) Defined benefit plans 7 — 7 Balance June 30 $ (608 ) $ 4 $ (604 ) Total Tenneco Inc. Shareholders' Equity Balance January 1 $ 696 $ (60 ) $ 636 Net income (loss) attributable to Tenneco Inc. 108 (1 ) 107 Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (74 ) 1 (73 ) Defined benefit plans 7 — 7 Comprehensive income (loss) 41 — 41 Adjustments to adopt new accounting standards (1 ) — (1 ) Cash dividends (25 ) — (25 ) Common Stock Issued 6 — 6 Balance June 30 $ 717 $ (60 ) $ 657 Total Equity Balance January 1 $ 742 $ (60 ) $ 682 Net income (loss) 122 (1 ) 121 Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (72 ) 1 (71 ) Defined benefit plans 7 — 7 Comprehensive income (loss) 57 — 57 Common Stock Issued 6 — 6 Cash dividends (43 ) — (43 ) Adjustments to adopt new accounting standards (1 ) — (1 ) Balance June 30 $ 761 $ (60 ) $ 701 New Accounting Pronouncements Adoption of New Accounting Standards Comprehensive income — In February 2018, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220). The amendments in this update allow a reclassification from accumulated other comprehensive income (loss) to accumulated deficit for stranded tax effects resulting from the Tax Cuts and Jobs Act ("TCJA"). The Company has elected not to adopt the optional reclassification. Leases — In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). This update supersedes the lease requirements in Topic 840, Leases. The objective of Topic 842 is to establish the principles that lessees and lessors shall apply to report useful information to users of financial statements about the amount, timing, and uncertainty of cash flows arising from a lease. For public business entities, the standard is effective for financial statements issued for annual periods beginning after December 15, 2018, and interim periods within those annual periods. The Company adopted this update on January 1, 2019 using the modified retrospective method without the recasting of comparative periods’ financial information, as permitted by the transition guidance. The Company adopted the package of practical expedients that allows companies to not reassess its previous conclusions related to contracts that contain leases, existing lease classification, and initial direct costs, and to carry forward its historical conclusions. It elected the land easements practical expedient allowing the Company not to reassess whether existing or expired land easements not accounted for as leases under previous guidance are or contain leases under the new guidance. It also did not adopt the hindsight practical expedient and has also made an accounting policy election to exempt leases with an initial term of twelve months or less from balance sheet recognition. Instead, short-term leases will be expensed over the lease term. As a part of the implementation effort, the Company reviewed its internal control structure and modified and augmented existing controls, as necessary. The adoption of the new standard resulted in the recording of additional lease assets and lease liabilities of $387 million and $383 million , and a reduction of favorable lease intangibles of $4 million as of January 1, 2019. The standard did not materially affect the Company's condensed consolidated financial position or results of operations and had no effect on cash flows. See Note 14, Leases . Accounting Standards Issued But Not Yet Adopted Intangibles — In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The amendments in this update align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The accounting for the service element of a hosting arrangement that is a service contract is not affected by the amendments in this update. The amendments in this update are effective for interim and annual periods for the Company beginning on January 1, 2020, with early adoption permitted. The amendments in this update should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. The Company is currently evaluating the potential effect of this new guidance on its financial statements. Retirement benefits — In August 2018, the FASB issued ASU 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20). The amendments in this update remove disclosures that no longer are considered cost beneficial, clarify the specific requirements of disclosures, and add disclosure requirements identified as relevant. The amendments in this update are effective for fiscal years ending after December 15, 2020 with early adoption permitted. The Company is currently evaluating the potential effect of this new guidance on its financial statements. Fair value measurements — In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820). The new guidance modifies disclosure requirements related to fair value measurement. The amendments in this ASU are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Implementation on a prospective or retrospective basis varies by specific disclosure requirement. Early adoption is permitted. The standard also allows for early adoption of any removed or modified disclosures upon issuance of this ASU while delaying adoption of the additional disclosures until their effective date. The Company is currently evaluating the potential effect of this new guidance on its financial statements.

Acquisitions and Divestitures

Acquisitions and Divestitures	6 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Acquisitions and Divestitures	ring the six months ended June 30, 2019 , the Company made measurement period adjustments based on further evaluation of available information to facts and circumstances that existed as of the acquisition date. The following table summarizes the preliminary fair values of assets acquired and liabilities assumed as of the acquisition date and the measurement period adjustments made during the six months ended June 30, 2019 : Initial Allocation Adjustments Revised Allocation Cash, cash equivalents and restricted cash $ 277 $ — $ 277 Customer notes and accounts receivable 1,258 — 1,258 Other receivables 62 — 62 Inventories 1,551 (5 ) 1,546 Prepayments and other current assets 198 1 199 Property, plant and equipment 1,711 (28 ) 1,683 Long-term receivables 48 — 48 Goodwill 825 (40 ) 785 Intangibles 1,530 71 1,601 Investments in nonconsolidated affiliates 528 (15 ) 513 Deferred income taxes 166 — 166 Other assets 55 (6 ) 49 Total assets acquired $ 8,209 $ (22 ) $ 8,187 Short-term debt, including current maturities of long-term debt $ 130 $ — $ 130 Accounts payable 957 — 957 Accrued compensation and employee benefits 231 — 231 Accrued income taxes 49 — 49 Accrued expenses and other current liabilities 522 (8 ) 514 Long-term debt 1,315 — 1,315 Deferred income taxes 56 — 56 Pension and postretirement benefits 879 — 879 Deferred credits and other liabilities 124 (5 ) 119 Total liabilities assumed 4,263 (13 ) 4,250 Redeemable noncontrolling interests 96 (8 ) 88 Noncontrolling interests 143 (1 ) 142 Net assets and noncontrolling interests acquired $ 3,707 $ — $ 3,707 The primary areas of the preliminary purchase price allocation that are not yet finalized relate to the fair value of property, plant and equipment; intangible assets; unconsolidated affiliates; deferred income tax assets and liabilities; redeemable noncontrolling interests; and noncontrolling interests. Goodwill of $412 million was allocated to the Powertrain segment, $318 million was allocated to the Motorparts segment, and $55 million was allocated to the Ride Performance segment. The goodwill consists of the Company's expected future economic benefits that will arise from expected future product sales and synergies from combining Federal-Mogul with its existing portfolio of products. None of the goodwill is deductible for tax purposes. Other intangible assets acquired include the following: Estimated Fair Value Weighted-Average Useful Lives Definite-lived intangible assets: Customer platforms and relationships $ 978 10 years Technology rights 68 10 years Packaged kits know-how 54 10 years Catalogs 40 10 years Licensing agreements 64 4.5 years Land use rights 30 42.8 years Total definite-lived intangible assets 1,234 10.5 years Indefinite-lived intangible assets: Trade names and trademarks 367 Total $ 1,601 The Company recorded a $152 million step-up of inventory to its fair value as of the acquisition date based on the preliminary valuation. The Company recognized $3 million and $44 million as a non-cash charge to cost of goods sold during the three and six months ended June 30, 2019 related to the amortization of this step-up, as the acquired inventory was sold. The Company recognized $105 million as a non-cash charge to cost of goods sold during the year ended December 31, 2018 and expects to recognize the remaining amortization of the inventory step-up during 2019. In addition, the Company acquired $83 million in redeemable noncontrolling interests related to a subsidiary from the Federal-Mogul Acquisition. The Company initiated the process to make a tender offer for the shares it does not own due to the change in control in accordance with local regulations triggered by the acquisition. It is probable these shares will become redeemable during 2019 under the tender offer at a price that is representative of fair value and as a result, the noncontrolling interest is presented in the temporary equity section of the Company’s condensed consolidated balance sheets. The carrying amount for this redeemable noncontrolling interest represents its current redemption value at June 30, 2019 . The Company's condensed consolidated statements of income (loss) for the six months ended June 30, 2019 included net sales and operating revenues of $3,762 million and net income of $17 million associated with the operating results of Federal-Mogul. Pro Forma Results The following table summarizes, on a pro forma basis, the combined results of operations of the Company and the Federal-Mogul Acquisition, and the related financing, if the transaction had occurred as of January 1, 2017. The pro forma results are not necessarily indicative of either the actual consolidated results had the Federal-Mogul Acquisition occurred on January 1, 2017 or of future consolidated operating results. Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Net sales and operating revenues $ 4,504 $ 4,618 $ 8,988 $ 9,298 Earnings (loss) before income taxes and noncontrolling interests $ 171 $ 232 $ 201 $ 458 Net income (loss) attributable to Tenneco Inc. $ 43 $ 78 $ (27 ) $ 171 Basic earnings (loss) per share of common stock $ 0.54 $ 0.97 $ (0.33 ) $ 2.13 Diluted earnings (loss) per share of common stock $ 0.54 $ 0.96 $ (0.33 ) $ 2.12 These pro forma amounts have been calculated after applying the Company's accounting policies and the results presented above primarily reflect: (i) depreciation adjustments relating to fair value adjustments to property, plant, and equipment; (ii) amortization adjustments relating to fair value estimates of intangible assets; (iii) incremental interest expense, net on assumed indebtedness, the new credit facility, debt issuance costs, and fair value adjustments to debt; and (iv) cost of goods sold adjustments relating to fair value adjustments to inventory. Pro forma adjustments described above have been tax affected using the Company's effective rate during the respective periods. Assets Held for Sale On March 1, 2019, the Company sold its wipers business in the Motorparts segment for a sale price of $29 million , subject to adjustment based on terms of the sale agreement. Proceeds from the sale were $22 million , subject to customary working capital adjustments. Certain assets and liabilities of the business are still classified as held for sale within the condensed consolidated balance sheet as of June 30, 2019 and are expected to transfer in the second half of 2019. The related assets and liabilities were classified as held for sale as of June 30, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 Assets Inventories $ 3 $ 33 Other current assets — 5 Long-lived assets 1 23 Total assets held for sale $ 4 $ 61 Liabilities Accounts payable $ 2 $ 21 Accrued liabilities — 7 Other liabilities 1 11 Total liabilities held for sale $ 3 $ 39

Restructuring Charges and Asset

Restructuring Charges and Asset Impairments, Net	6 Months Ended
	Jun. 30, 2019
Restructuring and Related Activities [Abstract]
Restructuring Charges and Asset Impairments, Net	structuring and Other Charges The Company's restructuring activities are undertaken as necessary to execute management's strategy and streamline operations, consolidate and take advantage of available capacity and resources, and ultimately achieve net cost reductions. Restructuring activities include efforts to integrate and rationalize the Company's businesses and to relocate operations to best cost locations. The Company's restructuring charges consist primarily of employee costs (principally severance and/or termination benefits), and facility closure and other costs. For the three and six months ended June 30, 2019 and 2018 , restructuring charges, net and asset impairments by segment are as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Clean Air $ 15 $ 17 $ 20 $ 18 Powertrain 17 — 18 — Ride Performance 22 9 35 17 Motorparts 7 1 11 4 Corporate — 2 1 2 $ 61 $ 29 $ 85 $ 41 Presented within the table above are asset impairments of $1 million in the Clean Air segment and $1 million in the Motorparts segment incurred during the three and six months ended June 30, 2019 . During the three and six months ended June 30, 2019 , the Company incurred $3 million and $9 million in restructuring and related costs and reduced previously recorded estimates by $2 million related to a restructuring plan designed to achieve a portion of the synergies the Company anticipates achieving in connection with the Federal-Mogul Acquisition. Pursuant to the plan, the Company will reduce its headcount globally across all segments. The Company began implementing headcount reductions in January 2019 and these actions will continue throughout 2019. The Federal-Mogul Acquisition is discussed further in Note 3, Acquisitions and Divestitures . During the three and six months ended June 30, 2019 , the Company also incurred $17 million and $28 million in restructuring and related costs related to plant relocation and closures within its Ride Performance segment. The Company expects the actions to be completed by the second quarter of 2020. During the three and six months ended June 30, 2018, the Company incurred $7 million and $14 million in restructuring and related costs related to the accelerated move of the Beijing Ride Performance plant. Restructuring Reserve Rollforward Amounts related to activities that were charges to restructuring reserves, including costs incurred to support future structural cost reductions, by reportable segments are as follows: Reportable Segments Clean Air Powertrain Ride Performance Motorparts Total Reportable Segments Corporate Total Balance as of December 31, 2018 $ 17 $ 15 $ 25 $ 43 $ 100 $ 3 $ 103 Provisions 5 1 13 4 23 1 24 Payments (6 ) (3 ) (13 ) (14 ) (36 ) (2 ) (38 ) Balance as of March 31, 2019 16 13 25 33 87 2 89 Provisions 14 17 22 8 61 — 61 Revisions to estimates — — — (2 ) (2 ) — (2 ) Payments (2 ) (4 ) (19 ) (7 ) (32 ) (1 ) (33 ) Balance as of June 30, 2019 $ 28 $ 26 $ 28 $ 32 $ 114 $ 1 $ 115 Reportable Segments Clean Air Powertrain Ride Performance Motorparts Total Reportable Segments Corporate Total Balance as of December 31, 2017 $ 14 $ — $ 7 $ 4 $ 25 $ — $ 25 Provisions 1 — 8 3 12 — 12 Payments (5 ) — (9 ) (2 ) (16 ) — (16 ) Balance as of March 31, 2018 10 — 6 5 21 — 21 Provisions 17 — 9 1 27 2 29 Payments (3 ) — (10 ) (2 ) (15 ) — (15 ) Balance as of June 30, 2018 $ 24 $ — $ 5 $ 4 $ 33 $ 2 $ 35 The following table provides a summary of the Company's restructuring liabilities and related activity for each type of exit costs: Employee Costs Facility Closure and Other Costs Total Balance as of December 31, 2018 $ 98 $ 5 $ 103 Provisions 11 13 24 Payments (25 ) (13 ) (38 ) Balance as of March 31, 2019 84 5 89 Provisions 44 17 61 Revisions to estimates (2 ) — (2 ) Payments (16 ) (17 ) (33 ) Balance as of June 30, 2019 $ 110 $ 5 $ 115 Employee Costs Facility Closure and Other Costs Total Balance as of December 31, 2017 $ 19 $ 6 $ 25 Provisions 10 2 12 Payments (13 ) (3 ) (16 ) Balance as of March 31, 2018 16 5 21 Provisions 26 3 29 Payments (12 ) (3 ) (15 ) Balance as of June 30, 2018 $ 30 $ 5 $ 35

Inventories

Inventories	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Inventories	5. Inventories At June 30, 2019 and December 31, 2018 , inventory consists of the following: June 30, 2019 December 31, 2018 Finished goods $ 1,110 $ 1,116 Work in process 497 562 Raw materials 489 457 Materials and supplies 111 110 $ 2,207 $ 2,245

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets—Net	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets—Net	6. Goodwill and Other Intangible Assets At June 30, 2019 and December 31, 2018 , goodwill consists of the following: Six Months Ended June 30, 2019 Clean Air Powertrain Ride Performance Motorparts Total Gross carrying amount at December 31, 2018 $ 22 $ 388 $ 210 $ 611 $ 1,231 Measurement period adjustments — 21 — (67 ) (46 ) Acquisitions — — 28 — 28 Gross carrying amount at March 31, 2019 22 409 238 544 1,213 Measurement period adjustments — 3 2 3 8 Foreign exchange — — — — — Gross carrying amount at June 30, 2019 22 412 240 547 1,221 Accumulated impairment loss at December 31, 2018 — — (143 ) (219 ) (362 ) Impairment — — (60 ) — (60 ) Accumulated impairment loss at March 31, 2019 — — (203 ) (219 ) (422 ) Foreign exchange — — — — — Accumulated impairment loss at June 30, 2019 — — (203 ) (219 ) (422 ) Net carrying value at end of period $ 22 $ 412 $ 37 $ 328 $ 799 The Öhlins Acquisition resulted in $30 million of goodwill which was included in the Ride Performance segment. During the six months ended June 30, 2019 , the Company made the following adjustments to goodwill in the measurement period to the preliminary purchase price allocation for the Acquisitions: • an increase of $2 million for the Öhlins Acquisition; and • a net decrease of $40 million for the Federal-Mogul Acquisition. The purchase price allocations for the Acquisitions are preliminary and subject to finalization. The Company's current estimates and assumptions may change as a result. See Note 3, Acquisitions and Divestitures for additional information. During the first quarter of 2019, the Company reorganized the reporting structure of its Aftermarket, Ride Performance, and Motorparts segments and the underlying reporting units within those segments. The Company reassigned assets and liabilities (excluding goodwill) to the reporting units affected. Goodwill was then reassigned to the reporting units using a relative fair value approach based on the fair value of the elements transferred and the fair value of the elements remaining within the original reporting units. The Company tested goodwill for impairment on a pre-reorganization basis and determined there was no impairment for the affected reporting units. The Company also performed an impairment analysis on a post-reorganization basis and determined $60 million of goodwill was impaired for two reporting units within its Ride Performance segment, one of which was a full impairment of the goodwill. As a result, this non-cash charge was recorded in the six months ended June 30, 2019. Goodwill allocated to other reporting units was supported by the valuation performed at that time. During the three months ended June 30, 2019 , the Company performed a review of potential triggering events, and concluded no events indicated it was more likely than not that the fair values of its reporting units had declined to below their carrying values at June 30, 2019 . The Company considered the results of the post-reorganized reporting unit changes that occurred in the first quarter of 2019, which indicated nine reporting units with goodwill. Three of these nine reporting units have fair values that are within 15% of their carrying values and are reporting units that were acquired as part of the Acquisitions within the last year. The goodwill balance as of June 30, 2019 attributable to these three reporting units was $442 million . Management compared its future projected cash flows for these three reporting units as of June 30, 2019 compared to the future projected cash flows utilized in the valuation performed during the first quarter of 2019 and concluded there is no indication the carrying value of its reporting units would be less than their fair values. If the Company’s market capitalization remains at current levels for a sustained period of time or declines further, and if such a decline becomes indicative the fair value of its reporting units have declined to below their carrying values, the Company will need to determine the fair value of its reporting units which may result in a material non-cash goodwill impairment charge in a future period. At June 30, 2019 and December 31, 2018, the Company's intangible assets consist of the following: June 30, 2019 December 31, 2018 Useful Lives Gross Carrying Value Accumulated Amortization Net Carrying Value Gross Carrying Value Accumulated Amortization Net Carrying Value Definite-lived intangible assets: Customer relationships and platforms 10 years $ 1,014 $ (75 ) $ 939 $ 964 $ (24 ) $ 940 Customer contract 10 years 8 (6 ) 2 8 (5 ) 3 Patents 10 to 17 years 1 (1 ) — 1 (1 ) — Technology rights 10 to 30 years 136 (31 ) 105 98 (27 ) 71 Packaged kits know-how 10 years 54 (4 ) 50 36 (1 ) 35 Catalogs 10 years 40 (3 ) 37 — — — Licensing agreements 3 to 5 years 63 (11 ) 52 66 (3 ) 63 Land use rights 28 to 46 years 46 (2 ) 44 44 (2 ) 42 1,362 (133 ) 1,229 1,217 (63 ) 1,154 Indefinite-lived intangible assets: Trade names and trademarks 420 — 420 365 — 365 Total $ 1,782 $ (133 ) $ 1,649 $ 1,582 $ (63 ) $ 1,519 The Company recorded definite-lived and indefinite-lived intangible assets of $133 million as a result of the Öhlins Acquisition. During the six months ended June 30, 2019 , the Company made the following adjustments to definite-lived and indefinite-lived intangible assets in the measurement period to the preliminary purchase price allocation for the Acquisitions: • a decrease of $2 million was recognized for the Öhlins Acquisition; and • a net increase of $71 million was recognized for the Federal-Mogul Acquisition. The purchase price allocations for the Acquisitions are preliminary and subject to finalization. The Company's current estimates and assumptions may change as a result. See Note 3, Acquisitions and Divestitures for additional information. The amortization expense associated with definite-lived intangible assets was as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Amortization expense $ 33 $ — $ 68 $ 1 The expected future amortization expense for the Company's definite-lived intangible assets is as follows: 2019 2020 2021 2022 2023 2024 and thereafter Total Expected amortization expense $ 70 $ 139 $ 138 $ 134 $ 130 $ 618 $ 1,229

Investment in Nonconsolidated A

Investment in Nonconsolidated Affiliates	6 Months Ended
	Jun. 30, 2019
Equity Method Investments and Joint Ventures [Abstract]
Investment in Nonconsolidated Affiliates	7. Investment in Nonconsolidated Affiliates The Company has investments in several nonconsolidated affiliates, which are primarily located in China, Korea, Turkey, and the U.S. The Company generally equates control to ownership percentage whereby investments more than 50% owned are consolidated. The Company's ownership interest in affiliates accounted for under the equity method is as follows: June 30, 2019 December 31, 2018 Anqing TP Goetze Piston Ring Company Limited (China) 35.7 % 35.7 % Anqing TP Powder Metallurgy Co., Ltd (China) 20.0 % 20.0 % Dongsuh Federal-Mogul Industrial Co. Ltd. (Korea) 50.0 % 50.0 % Farloc Argentina SAIC Y F (Argentina) 23.9 % 23.9 % Federal-Mogul Powertrain Otomotiv A.S. (Turkey) 50.0 % 50.0 % Federal-Mogul TP Liner Europe Otomotiv Ltd. Sti. (Turkey) 25.0 % 25.0 % Federal-Mogul TP Liners, Inc. (USA) 46.0 % 46.0 % Frenos Hidraulicos Automotrices, S.A. de C.V. (Mexico) 49.0 % 49.0 % JURID do Brasil Sistemas Automotivos Ltda. (Brazil) 19.9 % 19.9 % KB Autosys Co., Ltd. (Korea) 33.6 % 33.6 % Montagewerk Abgastechnik Emden GmbH (Germany) 50.0 % 50.0 % The Company's investments in its nonconsolidated affiliates at June 30, 2019 and December 31, 2018 are: June 30, 2019 December 31, 2018 Investments in nonconsolidated affiliates $ 531 $ 544 The following table represents the activity from the Company's investments in its nonconsolidated affiliates for the three and six months ended June 30, 2019 and 2018 : Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Equity earnings (losses) of nonconsolidated affiliates, net of tax $ 17 $ — $ 33 $ — Cash dividends received from nonconsolidated affiliates $ 12 $ — $ 27 $ — During the six months ended June 30, 2019 , the Company made adjustments in the measurement period to the preliminary purchase price allocation for the Federal-Mogul Acquisition which resulted in a reduction to the fair value of its investments in nonconsolidated affiliates of $15 million . The purchase price allocation is preliminary and subject to the finalization. The Company's current estimates and assumptions may change as more information becomes available. See Note 3, Acquisitions and Divestitures , for additional information. The following tables present summarized aggregated financial information of the Company's nonconsolidated affiliates for the three and six months ended June 30, 2019 . The amounts represent 100% of the interest in the nonconsolidated affiliates and not the Company's proportionate share: Three Months Ended June 30, 2019 Statements of Income Otomotiv A.S. Anqing TP Goetze Other Total Sales $ 85 $ 39 $ 120 $ 244 Gross profit $ 22 $ 10 $ 23 $ 55 Income from continuing operations $ 17 $ 9 $ 11 $ 37 Net income $ 21 $ 9 $ 11 $ 41 Six Months Ended June 30, 2019 Statements of Income Otomotiv A.S. Anqing TP Goetze Other Total Sales $ 176 $ 78 $ 245 $ 499 Gross profit $ 43 $ 26 $ 46 $ 115 Income from continuing operations $ 36 $ 20 $ 24 $ 80 Net income $ 39 $ 18 $ 22 $ 79 See Note 18, Related Party Transactions , for additional information on balances and transactions with equity method investments.

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	8. Derivatives and Hedging Activities The Company is exposed to market risk, such as fluctuations in foreign currency exchange rates, commodity prices, equity compensation liabilities, and changes in interest rates, which may result in cash flow risks. For exposures not offset within its operations, the Company may enter into various derivative transactions pursuant to its risk management policies, which prohibit holding or issuing derivative financial instruments for speculative purposes. Designation of derivative instruments is performed on a transaction basis to support hedge accounting. The changes in fair value of these hedging instruments are offset in part or in whole by corresponding changes in the fair value or cash flows of the underlying exposures being hedged. The Company assesses the initial and ongoing effectiveness of its hedging relationships in accordance with its documented policy. Market Risks Foreign Currency Risk — The Company manufactures and sells its products in North America, South America, Asia, Europe, Australia and Africa. As a result, the Company's financial results could be significantly affected by factors such as changes in foreign currency exchange rates or weak economic conditions in foreign markets in which the Company manufactures and sells its products. The Company generally tries to use natural hedges within its foreign currency activities, including the matching of revenues and costs, to minimize foreign currency risk. Where natural hedges are not in place, the Company considers managing certain aspects of its foreign currency activities and larger transactions through the use of foreign currency options or forward contracts. Principal currencies hedged have historically included the U.S. dollar, euro, British pound, Polish zloty, Mexican peso, and Canadian dollar. Concentrations of Credit Risk — Financial instruments including cash equivalents and derivative contracts expose the Company to counterparty credit risk for non-performance. The Company's counterparties for cash equivalents and derivative contracts are banks and financial institutions that meet the Company's requirement of high credit standing. The Company's counterparties for derivative contracts are substantial investment and commercial banks with significant experience using such derivatives. The Company manages its credit risk through policies requiring minimum credit standing and limiting credit exposure to any one counterparty and through monitoring counterparty credit risks. The Company's concentration of credit risk related to derivative contracts at June 30, 2019 and 2018 is not material. Other — The Company presents its derivative positions and any related material collateral under master netting agreements on a net basis. For derivatives designated as cash flow hedges, changes in the time value are excluded from the assessment of hedge effectiveness. Unrealized gains and losses associated with ineffective hedges, determined using the hypothetical derivative method, are recognized in "Cost of sales" in the condensed consolidated statements of income (loss). Derivative gains and losses included in accumulated other comprehensive income (loss) for effective hedges are reclassified into operations upon recognition of the hedged transaction. Derivative gains and losses associated with undesignated hedges are recognized in "Cost of sales" in the condensed consolidated statements of income (loss). Derivative Instruments Foreign Currency Forward Contracts — The Company enters into foreign currency forward purchase and sale contracts to mitigate its exposure to changes in exchange rates on certain intercompany and third-party trade receivables and payables. In managing its foreign currency exposures, the Company identifies and aggregates existing offsetting positions and then hedges residual exposures through third-party derivative contracts. The gains or losses on these contracts is recognized in "Cost of sales" in the condensed consolidated statements of income (loss). The fair value of foreign currency forward contracts are recorded in "Prepayments and other current assets" or "Accrued expenses and other current liabilities" in the condensed consolidated balance sheets. The fair value of the Company's foreign currency forward contracts was a net asset position of less than $1 million at June 30, 2019 and December 31, 2018 . The following table summarizes by position the notional amounts for foreign currency forward contracts as of June 30, 2019 (all of which mature in 2019): Notional Amount Long positions $ (26 ) Short positions $ 26 Cash-Settled Share Swap Transactions — In May 2019, the Company entered into an amended and restated equity swap agreement. The Company selectively uses cash-settled share swaps to reduce market risk associated with its deferred compensation liabilities. These equity deferred compensation liabilities increase as the Company's stock price increases and decrease as the Company's stock price decreases. In contrast, the value of the swap agreement moves in the opposite direction of these liabilities, allowing the Company to fix a portion of the liabilities at a stated amount. As of June 30, 2019 , the Company had hedged its deferred compensation liability related to approximately 250,000 common share equivalents. The fair value of the equity swap agreement is recorded in "Prepayments and other current assets" in the condensed consolidated balance sheets. The fair value of the Company's equity swap agreement was a net asset position of $3 million at June 30, 2019 and $4 million at December 31, 2018 . Hedging Instruments Cash Flow Hedges — Commodity Price Risk — The Company’s production processes are dependent upon the supply of certain raw materials that are exposed to price fluctuations on the open market. The primary purpose of the Company’s commodity price forward contract activity is to manage the volatility associated with forecasted purchases for up to eighteen months in the future. The Company monitors its commodity price risk exposures regularly to maximize the overall effectiveness of its commodity forward contracts. Principal raw materials hedged include copper and tin. In certain instances within this program, foreign currency forwards may be used in order to match critical terms for commodity exposure. The Company has designated these contracts as cash flow hedging instruments. The Company records unrecognized gains and losses in other comprehensive income (loss) (“OCI or OCL”) and makes regular reclassifying adjustments into “Cost of sales” within the condensed consolidated statements of income (loss) when the underlying hedged transaction is recognized in earnings. The Company had commodity derivatives outstanding with an equivalent notional amount of $25 million as of June 30, 2019 and $27 million as of December 31, 2018 . Substantially all of the commodity price hedge contracts mature within one year . Net Investment Hedge — Foreign Currency Borrowings — The Company has foreign currency denominated debt, €774 million of which was designated as a net investment hedge in certain foreign subsidiaries and affiliates of the Company. Changes to its carrying value are included in shareholders' equity in the foreign currency translation component of OCL and offset against the translation adjustment on the underlying net assets of those foreign subsidiaries and affiliates, which are also recorded in OCL. The Company’s debt instruments are discussed further in Note 10, Debt and Other Financing Arrangements . The following table is a summary of the carrying value of derivative and non-derivative instruments designated as hedges as of June 30, 2019 : Carrying Value Balance sheet classification June 30, 2019 December 31, 2018 Commodity price hedge contracts designated as cash flow hedges Accrued expenses and other current liabilities $ — $ 2 Foreign currency borrowings designated as net investment hedges Long-term debt $ 880 $ 863 The following table represents the effects before reclassification into net income of derivative and non-derivative instruments designated as hedges in accumulated other comprehensive income (loss) three and six month periods ended June 30, 2019 and 2018: Amount of gain (loss) recognized in accumulated OCI or OCL (effective portion): Three Months Ended June 30, Six Months Ended June 30, 2019 2019 Commodity price hedge contracts designated as cash flow hedges $ (3 ) $ 1 Foreign currency borrowings designated as net investment hedges $ (12 ) $ 7 The Company estimates $1 million included in accumulated OCI or OCL as of June 30, 2019 will be reclassified into earnings within the following 12 months.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	three-level valuation hierarchy, based upon observable and unobservable inputs, is used for fair value measurements. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions based on the best evidence available. A financial instrument’s categorization within the hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fair value hierarchy definition prioritizes the inputs used in measuring fair value into the following levels: Level 1 — Quoted prices in active markets for identical assets or liabilities. Level 2 — Inputs, other than quoted prices in active markets, that are observable either directly or indirectly. Level 3 — Unobservable inputs based on our own assumptions. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table presents assets and liabilities included in the Company's condensed consolidated balance sheets as of June 30, 2019 and December 31, 2018 that are recognized at fair value on a recurring basis, and indicate the fair value hierarchy utilized to determine such fair value: June 30, 2019 December 31, 2018 Fair value Carrying Fair Carrying Fair Derivative instruments: Equity swap agreement Level 2 $ 3 $ 3 $ 4 $ 4 Commodity contracts Level 2 $ — $ — $ (2 ) $ (2 ) Cash-Settled Share Swap Transactions — The fair value of the equity swap agreement is recorded in "Prepayments and other current assets" in the condensed consolidated balance sheets. Commodity and Foreign Currency Contracts — The Company calculates the fair value of its commodity contracts and foreign currency contracts using quoted commodity forward rates and quoted currency forward rates, to calculate forward values, and then discounts the forward values. The discount rates for all derivative contracts are based on quoted bank deposit rates. The fair value of the Company's foreign currency forward contracts was a net asset position of less than $1 million at June 30, 2019 and December 31, 2018 . Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis In addition to items measured at fair value on a recurring basis, assets may be measured at fair value on a nonrecurring basis. These assets include long-lived assets and intangible assets which may be written down to fair value as a result of impairment. The Company has determined the fair value measurements related to each of these rely primarily on Company-specific inputs and the Company's assumptions about the use of the assets, as observable inputs are not available (level 3). To determine the fair value of long-lived asset groups, the Company utilizes discounted cash flows expected to be generated by the long-lived asset group. The Company evaluates the carrying value of its goodwill and indefinite-lived intangible assets for impairment annually in the fourth quarter of each year. These fair value measurements require the Company to make significant assumptions and estimates about the extent and timing of future cash flows, discount rates, and growth rates, which are subject to a high degree of uncertainty. The Company believes the assumptions and estimates used to determine the estimated fair value are reasonable, but different assumptions could materially affect the estimated fair value. During the first quarter, the Company reorganized the reporting structure of its Aftermarket, Ride Performance, and Motorparts segments and the underlying reporting units within those segments. The Company reassigned assets and liabilities (excluding goodwill) to the reporting units affected. Goodwill was then reassigned to the reporting units using a relative fair value approach based on the fair value of the elements transferred and the fair value of the elements remaining within the original reporting units. The Company tested goodwill for impairment on a pre-reorganization basis and determined there was no impairment for the affected reporting units. The Company also performed an impairment analysis on a post-reorganization basis and determined $60 million of goodwill was impaired for two reporting units within its Ride Performance segment, one of which was a full impairment of the goodwill. As a result, this non-cash charge was recorded in the six months ended June 30, 2019. Goodwill allocated to other reporting units was supported by the valuation performed at that time. See Note 6, Goodwill and Other Intangible Assets . Financial Instruments Not Carried at Fair Value Estimated fair values of the Company's outstanding debt were: June 30, 2019 December 31, 2018 Fair value Carrying Fair Carrying Fair Long-term debt (including current maturities): Term loans and senior notes Level 2 $ 5,247 $ 5,035 $ 5,307 $ 5,218 The fair value of the Company's public senior notes and private borrowings under its senior credit facility is based on observable inputs, and its borrowings on the revolving credit facility approximate fair value. The Company also had $91 million and $106 million at June 30, 2019 and December 31, 2018 in other debt whose carrying value approximates fair value, which consists primarily of foreign debt with maturities of one year or less. Assets and Liabilities Not Carried at Fair Value The carrying value of cash and cash equivalents, restricted cash, short and long-term receivables, accounts payable, and short-term debt approximates fair value.

Debt and Other Financing Arrang

Debt and Other Financing Arrangements	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Long-Term Debt and Financing Arrangements	-Term Debt A summary of our long-term debt obligations at June 30, 2019 and December 31, 2018 is set forth in the following table: June 30, 2019 December 31, 2018 Principal Carrying Amount (1) Principal Carrying Amount (1) Credit Facilities Revolver Borrowings Due 2023 $ 250 $ 250 $ — $ — Term Loans LIBOR plus 1.75% Term Loan A due 2019 through 2023 1,658 1,649 1,700 1,691 LIBOR plus 3.00% Term Loan B due 2019 through 2025 (2) 1,692 1,626 1,700 1,629 Senior Unsecured Notes $225 million of 5.375% Senior Notes due 2024 225 222 225 222 $500 million of 5.000% Senior Notes due 2026 500 494 500 493 Senior Secured Notes €415 million 4.875% Euro Fixed Rate Notes due 2022 472 489 476 496 €300 million of Euribor plus 4.875% Euro Floating Rate Notes due 2024 341 345 344 349 €350 million of 5.000% Euro Fixed Rate Notes due 2024 398 422 401 427 Other debt, primarily foreign instruments 93 91 108 106 5,588 5,413 Less - maturities classified as current 80 73 Total long-term debt $ 5,508 $ 5,340 (1) Carrying amount is net of unamortized debt issuance costs and debt discounts or premiums. Total unamortized debt issuance costs were $83 million and $90 million as of June 30, 2019 and December 31, 2018. Total unamortized debt (premium) discount, net was $(43) million and $(49) million as of June 30, 2019 and December 31, 2018. (2) As of December 31, 2018, the rate on Term Loan B was LIBOR plus 2.75% . Term Loans On October 1, 2018, the Company entered into a new credit agreement with JPMorgan Chase Bank, N.A., as administrative agent and other lenders (the "New Credit Facility") in connection with the Federal-Mogul Acquisition. The New Credit Facility provides $4.9 billion of total debt financing, consisting of a five -year $1.5 billion revolving credit facility, a five -year $1.7 billion term loan A facility ("Term Loan A") and a seven -year $1.7 billion term loan B facility ("Term Loan B"). Senior Notes The Company has outstanding 5.375% senior unsecured notes due December 15, 2024 ("2024 Senior Notes") and 5.000% senior unsecured notes due July 15, 2026 ("2026 Senior Notes" and together with the 2024 Senior Notes, the "Senior Unsecured Notes"). The Company has outstanding 5.000% euro denominated fixed rate notes which are due July 15, 2024 (" 5.000% Euro Fixed Rate Notes"), 4.875% euro denominated fixed rate notes due April 15, 2022 (" 4.875% Euro Fixed Rate Notes"), and floating rate notes due April 15, 2024 ("Euro Floating Rate Notes", together with the 5.000% Euro Fixed Rate Notes and the 4.875% Euro Fixed Notes, the "Senior Secured Notes"). Credit Facilities The Company had availability on its credit facilities as of June 30, 2019 as follows: Credit Facilities as of June 30, 2019 Term Available (b) (in billions) Tenneco Inc. revolving credit facility (a) 2023 $ 1.2 Tenneco Inc. Term Loan A 2023 — Tenneco Inc. Term Loan B 2025 — Subsidiaries’ credit agreements 2020 0.2 $ 1.4 (a) The Company is required to pay commitment fees under the revolving credit facility on the unused portion of the total commitment. (b) Letters of credit reduce the available borrowings under the revolving credit facility, as of June 30, 2019 the revolving credit facility had $20 million in letters of credit outstanding. Interest expense associated with the amortization of the debt issuance costs and original issue discounts recognized in the Company's condensed consolidated statements of income (loss) consist of the following: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Amortization of debt issuance fees $ 4 $ 1 $ 9 $ 2 Included in the table above, is the amortization of debt issuance costs on the revolver, which are $20 million at June 30, 2019 and are recorded in "Other assets" in the condensed consolidated balance sheets. In addition, there was a $3 million and $6 million reduction to interest expense during the three and six months ended June 30, 2019 related to the accretion of the debt premium on the Senior Secured Notes. New Credit Facility — Other Terms and Conditions — The New Credit Facility also contains two financial maintenance covenants for the revolving credit facility and the Term Loan A facility including a requirement to have a consolidated net leverage ratio (as defined in the New Credit Facility) as of the end of each fiscal quarter of not greater than 4.0 to 1 through September 30, 2019, 3.75 to 1 through September 30, 2020 and 3.5 to 1 thereafter; and a requirement to maintain a consolidated interest coverage ratio (as defined in the New Credit Facility) for any period of four consecutive fiscal quarters of not less than 2.75 to 1. Senior Unsecured Notes and Senior Secured Notes — Other Terms and Conditions — The Senior Unsecured Notes and Senior Secured Notes contain covenants that will, among other things, limit the Company's ability to create liens and enter into sale and leaseback transactions. In addition, the Senior Secured Notes and 2024 Senior Unsecured Notes also require that, as a condition precedent to incurring certain types of indebtedness not otherwise permitted, the Company's consolidated fixed charge coverage ratio, as calculated on a pro forma basis, be greater than 2.00 , as well as containing restrictions on its operations, including limitations on: (i) incurring additional indebtedness; (ii) paying dividends; (iii) distributions and stock repurchases; (iv) investments; (v) asset sales and (vi) mergers and consolidations. Subject to limited exceptions, all of the Company's existing and future material domestic wholly owned subsidiaries fully and unconditionally guarantee its Senior Unsecured Notes and Senior Secured Notes on a joint and several basis. There are no significant restrictions on the ability of the subsidiaries that have guaranteed the Company's Senior Notes to make distributions to the Company. As of June 30, 2019 , the Company was in compliance with all of its financial covenants. Accounts Receivable Securitization and Factoring On-Balance Sheet Arrangements — The Company has securitization programs for some of its accounts receivables, with limited recourse provisions. Borrowings on these securitization programs, which are recorded in short-term debt, at June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Borrowings on securitization programs $ 4 $ 6 Off-Balance Sheet Arrangements — In the Company's European and U.S. accounts receivable factoring programs, accounts receivables are transferred in their entirety to the acquiring entities and are accounted for as a sale. The fair value of assets received as proceeds in exchange for the transfer of accounts receivable under these factoring programs approximates the fair value of such receivables. Certain programs in Europe have deferred purchase price arrangements with the banks. The Company is the servicer of the receivables under some of these arrangements and is responsible for performing all accounts receivable administration functions. Where the Company receives a fee to service and monitor these transferred accounts receivables, such fees are sufficient to offset the costs and as such, a servicing asset or liability is not recorded as a result of such activities. In the U.S and Canada, the Company participates in supply chain financing programs with certain of the Company's aftermarket customers through a drafting program. The amounts outstanding for these factoring and drafting arrangements as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 (in billions) Accounts receivable outstanding and derecognized $ 1.1 $ 1.0 The deferred purchase price receivable as of June 30, 2019 and December 31, 2018 is as follows: June 30, 2019 December 31, 2018 Deferred purchase price receivable $ 52 $ 154 Proceeds from the factoring of accounts receivable qualifying as sales are as follows: Three months ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in billions) Proceeds from factoring qualifying as sales $ 1.3 $ 0.7 $ 2.5 $ 1.5 Financing charges associated with the factoring of receivables are as follows: Three months ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Financing charges on sale of receivables (a) $ 6 $ 2 $ 14 $ 5 (a) Amount is included in "Interest expense" in the condensed consolidated statements of income (loss).

Pension Plans, Postretirement a

Pension Plans, Postretirement and Other Employee Benefits	6 Months Ended
	Jun. 30, 2019
Retirement Benefits [Abstract]
Pension Plans, Postretirement and Other Employee Benefits	11. Pension Plans, Postretirement and Other Employee Benefits The Company sponsors several defined benefit pension plans ("Pension Benefits") and health care and life insurance benefits ("Other Postretirement Benefits", or "OPEB") for certain employees and retirees around the world. Components of net periodic benefit cost (credit) for the three months ended June 30, 2019 and 2018 are as follows: Three Months Ended June 30 Pension Other Postretirement Benefits 2019 2018 US Non-U.S. US Non-U.S. 2019 2018 Service cost $ — $ 6 $ — $ 2 $ — $ — Interest cost 14 5 2 3 4 1 Expected return on plan assets (17 ) (4 ) (3 ) (5 ) — — Net amortization: Actuarial loss 1 2 1 2 1 3 Prior service cost (credit) — — — — (2 ) (1 ) Net pension and postretirement costs (credits) $ (2 ) $ 9 $ — $ 2 $ 3 $ 3 Components of net periodic benefit cost (credit) for the six months ended June 30, 2019 and 2018 are as follows: Six Months Ended June 30 Pension Other Postretirement Benefits 2019 2018 US Non-U.S. US Non-U.S. 2019 2018 Service cost $ 1 $ 12 $ — $ 5 $ — $ — Interest cost 27 12 5 6 7 3 Expected return on plan assets (34 ) (9 ) (7 ) (10 ) — — Net amortization: Actuarial loss 2 3 2 4 2 4 Prior service cost (credit) — — — — (4 ) (1 ) Net pension and postretirement costs (credits) $ (4 ) $ 18 $ — $ 5 $ 5 $ 6

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	13. Commitments and Contingencies Environmental Matters The Company is subject to a variety of environmental and pollution control laws and regulations in all jurisdictions in which it operates. The Company has been notified by the U.S. Environmental Protection Agency, other national environmental agencies, and various provincial and state agencies it may be a potentially responsible party (“PRP”) under such laws for the cost of remediating hazardous substances pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act ("CERCLA") and other national and state or provincial environmental laws. PRP designation typically requires the funding of site investigations and subsequent remedial activities. Many of the sites that are likely to be the costliest to remediate are often current or former commercial waste disposal facilities to which numerous companies sent wastes. Despite the potential joint and several liability which might be imposed on the Company under CERCLA and some of the other laws pertaining to these sites, its share of the total waste sent to these sites generally has been small. The Company believes its exposure for liability at these sites is not material. On a global basis, the Company has also identified certain other present and former properties at which it may be responsible for cleaning up or addressing environmental contamination, in some cases as a result of contractual commitments and/or federal or state environmental laws. The Company is seeking to resolve its responsibilities for those sites for which a claim has been received. The Company expenses or capitalizes, as appropriate, expenditures for ongoing compliance with environmental regulations. As of June 30, 2019 , the Company has an obligation to remediate or contribute towards the remediation of certain sites, including the sites discussed above at which it may be a PRP. The Company maintains the aggregated estimated share of environmental remediation costs for all these sites on a discounted basis in the condensed consolidated balance sheets as follows: June 30, 2019 December 31, 2018 Accrued expenses and other current liabilities $ 8 $ 12 Deferred credits and other liabilities 30 28 $ 38 $ 40 For those locations where the liability was discounted, the weighted average discount rate used was 1.4% and 2.9% at June 30, 2019 and December 31, 2018. The Company's expected payments of environmental remediation costs for non-indemnified locations are estimated to be approximately: 2019 2020 2021 2022 2023 2024 and thereafter Expected payments $ 7 $ 5 $ 3 $ 3 $ 2 $ 16 Based on information known to the Company from site investigations and the professional judgment of consultants, the Company has established reserves it believes are adequate for these costs. Although the Company believes these estimates of remediation costs are reasonable and are based on the latest available information, the costs are estimates, difficult to quantify based on the complexity of the issues, and are subject to revision as more information becomes available about the extent of remediation required. At some sites, the Company expects other parties will contribute to the remediation costs. In addition, certain environmental statutes provide the Company's liability could be joint and several, meaning the Company could be required to pay amounts in excess of its share of remediation costs. The financial strength of the other PRPs at these sites has been considered, where appropriate, in the determination of the estimated liability. The Company does not believe any potential costs associated with its current status as a PRP, or as a liable party at the other locations referenced herein, will be material to its annual consolidated financial position, results of operations, or liquidity. Asset Retirement Obligations The Company’s primary asset retirement obligations ("ARO") activities relate to the removal of hazardous building materials at its facilities. The Company records an ARO at fair value upon initial recognition when the amount is probable and can be reasonably estimated. ARO fair values are determined based on the Company’s determination of what a third party would charge to perform the remediation activities, generally using a present value technique. The Company maintains ARO liabilities in the condensed consolidated balance sheets as follows: June 30, 2019 December 31, 2018 Accrued expenses and other current liabilities $ 3 $ 3 Deferred credits and other liabilities 12 12 $ 15 $ 15 Antitrust Investigations and Litigation On March 25, 2014, representatives of the European Commission (EC) were at Tenneco GmbH's Edenkoben, Germany administrative facility to gather information in connection with an ongoing global antitrust investigation concerning multiple automotive suppliers. On the same date, the Company also received a related subpoena from the U.S. Department of Justice (“DOJ”). On November 5, 2014, the DOJ granted conditional leniency to the Company, its subsidiaries, and its 50% affiliates as of such date ("2014 Tenneco Entities") pursuant to an agreement the Company entered into under the Antitrust Division's Corporate Leniency Policy. This agreement provides important benefits to the 2014 Tenneco Entities in exchange for the Company's self-reporting of matters to the DOJ and its continuing full cooperation with the DOJ's resulting investigation. For example, the DOJ will not bring any criminal antitrust prosecution against the 2014 Tenneco Entities, nor seek any criminal fines or penalties, in connection with the matters the Company reported to the DOJ. Additionally, there are limits on the liability of the 2014 Tenneco Entities related to any follow-on civil antitrust litigation in the United States. The limits include single rather than treble damages, as well as relief from joint and several antitrust liability with other relevant civil antitrust action defendants. These limits are subject to the Company satisfying the DOJ and any court presiding over such follow-on civil litigation. On April 27, 2017, the Company received notification from the EC that it has administratively closed its global antitrust inquiry regarding the production, assembly, and supply of complete exhaust systems. No charges against the Company or any other competitor were initiated at any time and the EC inquiry is now closed. Certain other competition agencies are also investigating possible violations of antitrust laws relating to products supplied by the Company and its subsidiaries, including Federal-Mogul. The Company has cooperated and continues to cooperate fully with all of these antitrust investigations and take other actions to minimize its potential exposure. The Company and certain of its competitors are also currently defendants in civil putative class action litigation and are subject to similar claims filed by other plaintiffs, in the United States and Canada. More related lawsuits may be filed, including in other jurisdictions. Plaintiffs in these cases generally allege that defendants have engaged in anticompetitive conduct, in violation of federal and state laws, relating to the sale of automotive exhaust systems or components thereof. Plaintiffs seek to recover, on behalf of themselves and various purported classes of purchasers, injunctive relief, damages and attorneys’ fees. However, as explained above, because the DOJ granted conditional leniency to the 2014 Tenneco Entities, the Company's civil liability in U.S. follow-on actions with respect to these entities is limited to single damages and the Company will not be jointly and severally liable with the other defendants, provided that the Company has satisfied its obligations under the DOJ leniency agreement and approval is granted by the presiding court. Typically, exposure for follow-on actions in Canada is less than the exposure for U.S. follow-on actions. Following the EC's decision to administratively close its antitrust inquiry into exhaust systems in 2017, receipt by the 2014 Tenneco Entities of conditional leniency from the DOJ and discussions during the third quarter of 2017 following the appointment of a special settlement master in the civil putative class action cases pending against the Company and/or certain of its competitors in the United States, the Company continues to vigorously defend itself and/or take actions to minimize its potential exposure to matters pertaining to the global antitrust investigation, including engaging in settlement discussions when it is in the best interests of the Company and its stockholders. For example, in October 2017, the Company settled an administrative action brought by Brazil's competition authority for an amount that was not material. In December 2018, the Company settled a separate administrative action brought by Brazil’s competition authority against a Federal-Mogul subsidiary, also for an amount that was not material. Additionally, in February 2018, the Company settled civil putative class action litigation in the United States brought by classes of direct purchasers, end-payors and auto dealers. No other classes of plaintiffs have brought claims against the Company in the United States. Based upon those earlier developments, including settlement discussions, the Company established a reserve of $132 million in its second quarter 2017 financial results for settlement costs that were probable, reasonably estimable, and expected to be necessary to resolve its antitrust matters globally, which primarily involves the resolution of civil suits and related claims. Of the $132 million reserve that was established, $79 million was paid through June 30, 2019 resulting in a remaining reserve of $53 million as of June 30, 2019 , which is recorded in accrued expenses and other current liabilities in the Company's condensed consolidated balance sheets. While the Company, including its Federal-Mogul subsidiaries, continues to cooperate with certain competition agencies investigating possible violations of antitrust laws relating to products supplied by the Company, and the Company may be subject to other civil lawsuits and/or related claims, no amount of this reserve is attributable to matters with the DOJ or the EC, and no such amount is expected based on current information. The Company's reserve for its antitrust matters is based upon all currently available information and an assessment of the probability of events for those matters where the Company can make a reasonable estimate of the costs to resolve such outstanding matters. The Company's estimate involves significant judgment, given the number, variety and potential outcomes of actual and potential claims, the uncertainty of future rulings and approvals by a court or other authority, the behavior or incentives of adverse parties or regulatory authorities, and other factors outside of its control. As a result, the Company's reserve may change from time to time, and actual costs may vary. Although the ultimate outcome of any legal matter cannot be predicted with certainty, based on current information, the Company does not expect any such change in the reserve will have a material adverse effect on the Company's annual consolidated financial position, results of operations or liquidity. Other Legal Proceedings, Claims and Investigations For many years the Company has been and continues to be subject to lawsuits initiated by claimants alleging health problems as a result of exposure to asbestos. The Company's current docket of active and inactive cases is less than 500 cases in the United States and less than 50 in Europe. With respect to the claims filed in the United States, the substantial majority of the claims are related to alleged exposure to asbestos in the Company's line of Walker® exhaust automotive products although a significant number of those claims appear also to involve occupational exposures sustained in industries other than automotive. A small number of claims have been asserted against one of the Company's subsidiaries by railroad workers alleging exposure to asbestos products in railroad cars. The Company believes, based on scientific and other evidence, it is unlikely that U.S. claimants were exposed to asbestos by the Company's former products and that, in any event, they would not be at increased risk of asbestos-related disease based on their work with these products. Further, many of these cases involve numerous defendants, with the number in some cases exceeding 100 defendants from a variety of industries. Additionally, in many cases the plaintiffs either do not specify any, or specify the jurisdictional minimum, dollar amount for damages. With respect to the claims filed in Europe, the substantial majority relate to occupational exposure claims brought by current and former employees of Federal-Mogul facilities in France and amounts paid out were not material. A small number of occupational exposure claims have also been asserted against Federal-Mogul entities in Italy and Spain. As major asbestos manufacturers and/or users continue to go out of business or file for bankruptcy, the Company may experience an increased number of these claims. The Company vigorously defends itself against these claims as part of its ordinary course of business. In future periods, the Company could be subject to cash costs or charges to earnings if any of these matters are resolved unfavorably to the Company. To date, with respect to claims that have proceeded sufficiently through the judicial process, the Company has regularly achieved favorable resolutions. Accordingly, the Company presently believes that these asbestos-related claims will not have a material adverse effect on the Company's annual consolidated financial position, results of operations or liquidity. The Company is also from time to time involved in other legal proceedings, claims or investigations. Some of these matters involve allegations of damages against the Company relating to environmental liabilities (including toxic tort, property damage and remediation), intellectual property matters (including patent, trademark and copyright infringement, and licensing disputes), personal injury claims (including injuries due to product failure, design or warning issues, and other product liability related matters), taxes, unclaimed property, employment matters, and commercial or contractual disputes, sometimes related to acquisitions or divestitures. Additionally, some of these matters involve allegations relating to legal compliance. While the Company vigorously defends itself against all of these legal proceedings, claims and investigations and take other actions to minimize its potential exposure, in future periods, the Company could be subject to cash costs or charges to earnings if any of these matters are resolved on unfavorable terms. Although the ultimate outcome of any legal matter cannot be predicted with certainty, based on current information, including the Company's assessment of the merits of the particular claim, except as described above under "Antitrust Investigations", the Company does expect the legal proceedings, claims or investigations currently pending against it will have any material adverse effect on its annual consolidated financial position, results of operations or liquidity. Warranty Matters The Company provides warranties on some of its products. The warranty terms vary but range from one year up to limited lifetime warranties on some of its premium aftermarket products. Provisions for estimated expenses related to product warranty are made at the time products are sold or when specific warranty issues are identified with the Company's products. These estimates are established using historical information about the nature, frequency, and average cost of warranty claims. The Company believes the warranty reserve is appropriate; however, actual claims incurred could differ from the original estimates, requiring adjustments to the reserve. The reserve is included in both current and long-term liabilities on the condensed consolidated balance sheets. Below is a table that shows the activity in the warranty accrual accounts: 2019 2018 Balance as of December 31 of the prior year $ 45 $ 26 Accruals related to product warranties 5 6 Reductions for payments made (2 ) (3 ) Foreign currency — — Balance as of March 31 $ 48 $ 29 Accruals related to product warranties 16 2 Reductions for payments made (11 ) (2 ) Foreign currency — — Balance as of June 30 $ 53 $ 29

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes For interim tax reporting, the Company estimates its annual effective tax rate and applies it to year-to-date ordinary income. Jurisdictions where no tax benefit can be recognized due to a valuation allowance are excluded from the estimated annual effective tax rate. The effect of including these jurisdictions on the quarterly effective rate calculation could result in a higher or lower effective tax rate during a quarter due to the mix and timing of actual earnings versus annual projections. The tax effects of certain items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are excluded from the estimated annual effective tax rate calculation and recognized in the interim period in which they occur. For the three months ended June 30, 2019 , the Company recorded income tax expense of $14 million on income from continuing operations before income taxes of $ 59 million . This compares to income tax expense of $ 26 million on income from continuing operations before income taxes of $ 89 million in the same period of 2018. For the six months ended June 30, 2019 , the Company recorded income tax expense of $ 14 million on loss from continuing operations before income taxes of $ 46 million . This compares to income tax expense of $ 51 million on income from continuing operations before income taxes of $ 188 million in the same period of 2018. Income tax expense for the three and six months ended June 30, 2019 differs from the U.S. statutory rate due primarily to pre-tax income taxed at rates higher than the U.S. statutory rate and pre-tax losses with no tax benefit. Income tax expense for the three and six months ended June 30, 2018 differs from the U.S. statutory rate due primarily to $2 million of tax expense for changes in the toll tax, pre-tax income taxed at rates lower than the U.S. statutory rate, and pre-tax losses with no tax benefit. In addition, during the three and six months ended June 30, 2018, a $5 million and $7 million tax benefit was recognized related to acquisition charges. On December 22, 2017, the Tax Cuts and Jobs Act ("TCJA") was enacted into U.S. law, which, among other provisions, lowered the corporate income tax rate effective January 1, 2018 from 35% to 21%, and implemented significant changes with respect to U.S. tax treatment of earnings originating from outside the U.S. Many of the provisions of TCJA are subject to regulatory interpretation and U.S. state conforming enactments. The Internal Revenue Service (IRS) issued final regulations, effective on February 5, 2019, which provided additional guidance to assist taxpayers in computing the toll tax. Based on the final regulations a $2 million discrete benefit was recorded in income tax expense during the six months ended June 30, 2019 . The Company evaluates its deferred tax assets quarterly to determine if valuation allowances are required or should be adjusted. This assessment considers, among other matters, the nature, frequency and amount of recent losses, the duration of statutory carryforward periods, and tax planning strategies. In making such judgments, significant weight is given to evidence that can be objectively verified. If recent operational improvements continue in our foreign subsidiaries or if certain restructuring steps are completed as part of the Federal-Mogul Acquisition and anticipated spin-off of DRiV, the Company believes it is reasonably possible sufficient positive evidence may be available to release all, or a portion, of its valuation allowance in the next twelve months in certain jurisdictions. This may result in a one-time tax benefit of up to $45 million , primarily related to Spain and the Czech Republic. The Company believes it is reasonably possible up to $11 million in unrecognized tax benefits related to the expiration of foreign statute of limitations and the conclusion of income tax examinations may be recognized within the next twelve months .

Leases

Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Leases	14. Leases The Company has operating and finance leases for real estate and equipment. Generally, the leases have remaining terms of one month to ten years . Leases with an initial term of 12 months or less which do not include an option to purchase the underlying asset that the Company is reasonably certain to exercise are not recorded on the balance sheet. The Company recognizes lease expense for these leases on a straight-line basis over the lease term. In addition, some leases include options to terminate the lease. The Company generally negotiates these termination clauses in anticipation of any changes in market conditions; however, because a termination option requires approval from management, the Company assumes the majority of its termination options will not be exercised when determining the lease term. The Company has elected the practical expedient to not separate non-lease components from the lease components to which they relate, and instead account for each separate lease and non-lease component associated with that lease component as a single lease component for all underlying asset classes. Accordingly, all costs associated with a lease contract are accounted for as lease cost. Lease expense is recorded in operating expenses in the results of operations. Some leasing arrangements require variable payments that are dependent on usage, output, or may vary for other reasons, such as insurance and tax payments. The variable portion of lease payments is not included in the computation of the right of use assets or lease liabilities. Rather, variable payments, other than those dependent upon a market index or rate, are expensed when the obligation for those payments is incurred and are included in "Cost of sales" and "Selling, general, and administrative" within the condensed consolidated statements of income (loss). The Company does not include significant restrictions or covenants in its lease agreements, and residual value guarantees are generally not included within its operating leases. The components of lease expense were as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Operating lease expense $ 30 $ 64 Short-term lease expense 2 4 Variable lease expense 12 20 Total lease expense $ 44 $ 88 Other information related to leases was as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 41 $ 82 Supplemental balance sheet information related to leases was as follows: June 30, 2019 Operating leases Operating lease right-of-use assets (a) $ 344 Other current liabilities (b) $ 99 Other long-term liabilities (c) 239 Total operating lease liabilities $ 338 Finance leases Property, plant and equipment, gross $ 2 Accumulated depreciation — Total finance lease right-of-use assets $ 2 Other current liabilities (b) $ 1 Other long-term liabilities (c) 1 Total finance lease liabilities $ 2 (a) Included in "Other assets" in the condensed consolidated balance sheets. (b) Included in "Accrued expenses and other current liabilities" in the condensed consolidated balance sheets. (c) Included in "Deferred credits and other liabilities" in the condensed consolidated balance sheets. June 30, 2019 Weighted average remaining lease term Weighted average discount rate Operating leases 4.96 years 4.26 % Finance leases 3.05 years 5.08 % Maturities of lease liabilities under non-cancellable leases as of June 30, 2019 were as follows: Year ending December 31 Operating leases Finance leases 2019 (excluding the six months ended June 30, 2019) $ 56 $ 1 2020 97 1 2021 75 — 2022 53 — 2023 37 — Thereafter 57 — Total future undiscounted lease payments 375 2 Less imputed interest (37 ) — Total reported lease liability $ 338 $ 2 Future minimum operating lease payments at December 31, 2018 are as follows: 2019 $ 120 2020 100 2021 86 2022 68 2023 56 Beyond 2023 53 $ 483
Leases	14. Leases The Company has operating and finance leases for real estate and equipment. Generally, the leases have remaining terms of one month to ten years . Leases with an initial term of 12 months or less which do not include an option to purchase the underlying asset that the Company is reasonably certain to exercise are not recorded on the balance sheet. The Company recognizes lease expense for these leases on a straight-line basis over the lease term. In addition, some leases include options to terminate the lease. The Company generally negotiates these termination clauses in anticipation of any changes in market conditions; however, because a termination option requires approval from management, the Company assumes the majority of its termination options will not be exercised when determining the lease term. The Company has elected the practical expedient to not separate non-lease components from the lease components to which they relate, and instead account for each separate lease and non-lease component associated with that lease component as a single lease component for all underlying asset classes. Accordingly, all costs associated with a lease contract are accounted for as lease cost. Lease expense is recorded in operating expenses in the results of operations. Some leasing arrangements require variable payments that are dependent on usage, output, or may vary for other reasons, such as insurance and tax payments. The variable portion of lease payments is not included in the computation of the right of use assets or lease liabilities. Rather, variable payments, other than those dependent upon a market index or rate, are expensed when the obligation for those payments is incurred and are included in "Cost of sales" and "Selling, general, and administrative" within the condensed consolidated statements of income (loss). The Company does not include significant restrictions or covenants in its lease agreements, and residual value guarantees are generally not included within its operating leases. The components of lease expense were as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Operating lease expense $ 30 $ 64 Short-term lease expense 2 4 Variable lease expense 12 20 Total lease expense $ 44 $ 88 Other information related to leases was as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 41 $ 82 Supplemental balance sheet information related to leases was as follows: June 30, 2019 Operating leases Operating lease right-of-use assets (a) $ 344 Other current liabilities (b) $ 99 Other long-term liabilities (c) 239 Total operating lease liabilities $ 338 Finance leases Property, plant and equipment, gross $ 2 Accumulated depreciation — Total finance lease right-of-use assets $ 2 Other current liabilities (b) $ 1 Other long-term liabilities (c) 1 Total finance lease liabilities $ 2 (a) Included in "Other assets" in the condensed consolidated balance sheets. (b) Included in "Accrued expenses and other current liabilities" in the condensed consolidated balance sheets. (c) Included in "Deferred credits and other liabilities" in the condensed consolidated balance sheets. June 30, 2019 Weighted average remaining lease term Weighted average discount rate Operating leases 4.96 years 4.26 % Finance leases 3.05 years 5.08 % Maturities of lease liabilities under non-cancellable leases as of June 30, 2019 were as follows: Year ending December 31 Operating leases Finance leases 2019 (excluding the six months ended June 30, 2019) $ 56 $ 1 2020 97 1 2021 75 — 2022 53 — 2023 37 — Thereafter 57 — Total future undiscounted lease payments 375 2 Less imputed interest (37 ) — Total reported lease liability $ 338 $ 2 Future minimum operating lease payments at December 31, 2018 are as follows: 2019 $ 120 2020 100 2021 86 2022 68 2023 56 Beyond 2023 53 $ 483

Share-Based Compensation

Share-Based Compensation	6 Months Ended
	Jun. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	15. Share-Based Compensation Share-Based Compensation Expense The total share-based compensation expense was as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Cash-settled share-based compensation expense (benefit) $ 1 $ (2 ) — (3 ) Share-settled share-based compensation expense (benefit) 6 2 13 7 $ 7 $ — 13 4 Cash-Settled Awards Prior to 2018, the Company has granted restricted stock units ("RSUs") and long-term performance units ("LTPUs") to certain key employees that are payable in cash. These awards are classified as liabilities and are valued based on the fair value of the award at the grant date and are remeasured at each reporting date until settlement with compensation expense being recognized in proportion to the completed requisite period up until date of settlement. At June 30, 2019 , the LTPUs outstanding included a three-year grant for 2017 - 2019 payable in the first quarter of 2020. As of June 30, 2019 , $1 million of total unrecognized compensation costs is expected to be recognized on the cash-settled awards over a weighted-average period of less than 1 year . Share-Settled Awards The Company has granted restricted stock to its directors and certain key employees as well as RSUs and performance share units ("PSUs") that are payable in common stock to certain key employees. These awards are settled in shares upon vesting and recognized in equity based on their fair value. The following table reflects the status for all nonvested restricted shares, share-settled RSUs, and PSUs as of June 30, 2019 and December 31, 2018 : Restricted Stock Share-Settled RSUs PSUs Shares Weighted Avg. Units Weighted Avg. Units Weighted Avg. Nonvested balance at beginning of period 178,550 $ 55.46 440,403 $ 47.99 227,049 $ 49.18 Granted 34,009 34.66 867,137 34.21 634,511 24.77 Vested (172,050 ) 50.12 (88,590 ) 54.60 — — Forfeited (3,329 ) 62.12 (50,113 ) 41.26 (43,527 ) 43.61 Nonvested balance at end of period 37,180 $ 63.30 1,168,837 $ 38.04 818,033 $ 34.25 As of June 30, 2019 , approximately $54 million of total unrecognized compensation costs is expected to be recognized on the share-settled awards over a weighted-average period of approximately 2 years

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Stockholders' Equity	16. Shareholders' Equity Common Stock Outstanding The Company has authorized 175,000,000 shares and 135,000,000 shares ( $0.01 par value) of Class A Common Stock at June 30, 2019 and 2018 . The Company has authorized 25,000,000 shares ( $0.01 par value) of Class B Common Stock at June 30, 2019 . Total common stock outstanding and changes in common stock issued are as follows: Class A Common Stock Class B Common Stock Six Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 Shares issued at beginning of period 71,675,379 66,033,509 23,793,669 Issuance (repurchased) pursuant to benefit plans 123,216 (15,906 ) — Restricted stock forfeited and withheld for taxes (60,081 ) (7,590 ) — Stock options exercised 8,438 (6,975 ) — Shares issued at end of period 71,746,952 66,003,038 23,793,669 Treasury stock 14,592,888 14,592,888 — Total shares outstanding 57,154,064 51,410,150 23,793,669 Preferred Stock The Company had 50,000,000 shares of preferred stock ( $0.01 par value) authorized at both June 30, 2019 and 2018 . No shares of preferred stock were issued or outstanding at those dates. Accumulated Other Comprehensive Income (Loss) The following represents the Company's changes in accumulated other comprehensive income (loss) by component, net of tax for the three and six months ended June 30, 2019 and 2018 : Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Foreign currency translation adjustments and other Balance at beginning of period $ (366 ) $ (244 ) $ (395 ) $ (263 ) Other comprehensive income (loss) before reclassifications adjustments (16 ) (94 ) 11 (75 ) Reclassification from other comprehensive income (loss) — — — — Other comprehensive income (loss) (16 ) (94 ) 11 (75 ) Income tax provision (benefit) (1 ) 2 1 2 Balance at end of period $ (383 ) $ (336 ) $ (383 ) $ (336 ) Pensions and other postretirement benefits Balance at beginning of period $ (296 ) $ (272 ) $ (297 ) $ (275 ) Other comprehensive income (loss) before reclassifications — — — — Reclassification from other comprehensive income (loss) 2 5 3 9 Other comprehensive income (loss) 2 5 3 9 Income tax provision (benefit) (4 ) (1 ) (4 ) (2 ) Balance at end of period $ (298 ) $ (268 ) $ (298 ) $ (268 ) Cash flow hedge instruments Balance at beginning of period $ 4 $ — $ — $ — Other comprehensive income (loss) before reclassifications (3 ) — 1 — Reclassification from other comprehensive income (loss) — — — — Other comprehensive income (loss) (3 ) — 1 — Income tax provision (benefit) — — — — Balance at end of period $ 1 $ — $ 1 $ — Other comprehensive income (loss) attributable to noncontrolling interests $ (1 ) $ (7 ) $ 5 $ 1

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment Information	17. Segment Information The Company expects to separate its businesses to form two new, independent publicly traded companies and currently expects the DRiV spin-off to occur in mid-2020. As such, the Company began to manage and report its DRiV businesses through two new operating segments, in the first quarter of 2019, as compared to the three operating segments it had previously reported. The DRiV operating segments consist of Motorparts and Ride Performance. The new Motorparts operating segment consists of the previously reported Aftermarket operating segment as well as the aftermarket portion of the previously reported Motorparts operating segment. The Ride Performance operating segment consists of the previously reported Ride Performance operating segment as well as the OE Braking business that was included in the previously reported Motorparts operating segment. As such, prior period operating segment results have been conformed to reflect the Company's current operating segments. The future New Tenneco consists of two existing operating segments, Powertrain and Clean Air. Costs related to other business activities, primarily corporate headquarter functions, are disclosed separately from the four operating segments as "Corporate." Management uses EBITDA including noncontrolling interests as the key performance measure of segment profitability and uses the measure in its financial and operational decision making processes, for internal reporting, and for planning and forecasting purposes to effectively allocate resources. EBITDA including noncontrolling interests is defined as earnings before interest expense, income taxes, noncontrolling interests, and depreciation and amortization. Segment assets are not presented as it is not a measure reviewed by the Chief Operating Decision Maker in allocating resources and assessing performance. EBITDA including noncontrolling interests should not be considered a substitute for results prepared in accordance with US GAAP and should not be considered an alternative to net income, which is the most directly comparable financial measure to EBITDA including noncontrolling interests that is in accordance with US GAAP. EBITDA including noncontrolling interests, as determined and measured by the Company, should not be compared to similarly titled measures reported by other companies. The following table summarizes certain of the Company's segment information: Reportable Segments Clean Air Powertrain Ride Performance Motorparts Total Corporate Reclass & Elims Total For the Three Months Ended June 30, 2019 Revenues from external customers $ 1,827 $ 1,133 $ 709 $ 835 $ 4,504 $ — $ — $ 4,504 Intersegment revenues $ — $ 40 $ 38 $ 11 $ 89 $ — $ (89 ) $ — EBITDA, including noncontrolling interests $ 152 $ 100 $ 26 $ 110 $ 388 $ (78 ) $ — $ 310 For the Three Months Ended June 30, 2018 Revenues from external customers $ 1,694 $ — $ 506 $ 333 $ 2,533 $ — $ — $ 2,533 Intersegment revenues $ — $ — $ 5 $ — $ 5 $ — $ (5 ) $ — EBITDA, including noncontrolling interests $ 142 $ — $ 20 $ 55 $ 217 $ (46 ) $ — $ 171 Reportable Segments Clean Air Powertrain Ride Performance Motorparts Total Corporate Reclass & Elims Total For the Six Months Ended June 30, 2019 Revenues from external customers $ 3,606 $ 2,308 $ 1,442 $ 1,632 $ 8,988 $ — $ — $ 8,988 Intersegment revenues $ — $ 86 $ 84 $ 22 $ 192 $ — $ (192 ) $ — EBITDA, including noncontrolling interests $ 283 $ 213 $ (19 ) $ 155 $ 632 $ (177 ) $ — $ 455 For the Six Months Ended June 30, 2018 Revenues from external customers $ 3,450 $ — $ 1,019 $ 645 $ 5,114 $ — $ — $ 5,114 Intersegment revenues $ — $ — $ 11 $ — $ 11 $ — $ (11 ) $ — EBITDA, including noncontrolling interests $ 299 $ — $ 44 $ 100 $ 443 $ (90 ) $ — $ 353 Segment EBITDA including noncontrolling interests and the reconciliation to earnings before interest expense, income taxes, and noncontrolling interests are as follow: Three Months Ended June 30 Six Months Ended June 30 2019 2018 2019 2018 EBITDA including noncontrolling interests by Segments: Clean Air $ 152 142 $ 283 $ 299 Powertrain 100 — 213 — Ride Performance 26 20 (19 ) 44 Motorparts 110 55 155 100 Corporate (78 ) (46 ) (177 ) (90 ) Total EBITDA including noncontrolling interests 310 171 455 353 Depreciation and amortization (169 ) (60 ) (338 ) (120 ) Earnings (loss) before interest expense, income taxes, and noncontrolling interests 141 111 117 233 Interest expense (82 ) (22 ) (163 ) (45 ) Income tax (expense) benefit (14 ) (26 ) (14 ) (51 ) Net income (loss) $ 45 $ 63 $ (60 ) $ 137 Revenue from contracts with customers is disaggregated by customer type and geography, as it depicts the nature and amount of the Company’s revenue that is aligned with the Company's key growth strategies. In the following tables, revenue is disaggregated accordingly: Reportable Segments By Customer Type Clean Air Powertrain Ride Performance Motorparts Total Three Months Ended June 30, 2019 OE - Substrate $ 777 $ — $ — $ — $ 777 OE - Value add 1,050 1,133 709 — 2,892 Aftermarket — — — 835 835 Total $ 1,827 $ 1,133 $ 709 $ 835 $ 4,504 Three Months Ended June 30, 2018 OE - Substrate $ 621 $ — $ — $ — $ 621 OE - Value add 1,073 — 506 — 1,579 Aftermarket — — — 333 333 Total $ 1,694 $ — $ 506 $ 333 $ 2,533 Reportable Segments By Customer Type Clean Air Powertrain Ride Performance Motorparts Total Six Months Ended June 30, 2019 OE - Substrate $ 1,483 $ — $ — $ — $ 1,483 OE - Value add 2,123 2,308 1,442 — 5,873 Aftermarket — — — 1,632 1,632 Total $ 3,606 $ 2,308 $ 1,442 $ 1,632 $ 8,988 Six Months Ended June 30, 2018 OE - Substrate $ 1,273 $ — $ — $ — $ 1,273 OE - Value add 2,177 — 1,019 — 3,196 Aftermarket — — — 645 645 Total $ 3,450 $ — $ 1,019 $ 645 $ 5,114 Reportable Segments By Geography Clean Air Powertrain Ride Performance Motorparts Total Three Months Ended June 30, 2019 North America $ 800 $ 398 $ 228 $ 536 $ 1,962 Europe, Middle East and Africa 609 540 349 241 1,739 Rest of world 418 195 132 58 803 Total $ 1,827 $ 1,133 $ 709 $ 835 $ 4,504 Three Months Ended June 30, 2018 North America $ 745 $ — $ 185 $ 210 $ 1,140 Europe, Middle East and Africa 623 — 212 105 940 Rest of world 326 — 109 18 453 Total $ 1,694 $ — $ 506 $ 333 $ 2,533 Reportable Segments By Geography Clean Air Powertrain Ride Performance Motorparts Total Six Months Ended June 30, 2019 North America $ 1,593 $ 803 $ 460 $ 1,043 $ 3,899 Europe, Middle East and Africa 1,250 1,115 727 478 3,570 Rest of world 763 390 255 111 1,519 Total $ 3,606 $ 2,308 $ 1,442 $ 1,632 $ 8,988 Six Months Ended June 30, 2018 North America $ 1,513 $ — $ 365 $ 398 $ 2,276 Europe, Middle East and Africa 1,280 — 437 213 1,930 Rest of world 657 — 217 34 908 Total $ 3,450 $ — $ 1,019 $ 645 $ 5,114

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2019
Related Party Transactions [Abstract]
Related Party Transactions	18. Related Party Transactions Amounts presented as Icahn Automotive Group LLC represent the Company's activity with Auto Plus and Pep Boys. See Note 7, Investment in Nonconsolidated Affiliates , for further information for companies within the tables below that represent equity method investments. The following tables are summaries of the net sales, purchases, and royalty and other income from related parties for the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Net Sales Purchases Royalty and Other Income Icahn Automotive Group LLC $ 47 $ — $ 1 PSC Metals, Inc. $ — $ — $ — Anqing TP Goetze Piston Ring Company Limited $ — $ 15 $ 1 Anqing TP Powder Metallurgy Company Limited $ 1 $ 2 $ — Dongsuh Federal-Mogul Industrial Co., Ltd. $ 2 $ 5 $ — Federal-Mogul Powertrain Otomotiv A.S. $ 15 $ 49 $ 1 Federal-Mogul TP Liner Europe Otomotiv Ltd. Sti. $ — $ 2 $ — Federal-Mogul Izmit Piston ve Pim Uretim Tesisleri A.S. $ 1 $ 4 $ — Federal-Mogul TP Liners, Inc. $ 4 $ — $ 1 Frenos Hidraulicos Auto $ 1 $ — $ — Montagewerk Abgastechnik Emden GmbH $ — $ — $ — Six Months Ended June 30, 2019 Net Sales Purchases Royalty and Other Income Icahn Automotive Group LLC $ 90 $ — $ 2 PSC Metals, Inc. $ 1 $ — $ — Anqing TP Goetze Piston Ring Company Limited $ — $ 29 $ — Anqing TP Powder Metallurgy Company Limited $ 1 $ 3 $ — Dongsuh Federal-Mogul Industrial Co., Ltd. $ 3 $ 7 $ — Federal-Mogul Powertrain Otomotiv A.S. $ 42 $ 104 $ 2 Federal-Mogul TP Liner Europe Otomotiv Ltd. Sti. $ — $ 5 $ — Federal-Mogul Izmit Piston ve Pim Uretim Tesisleri A.S. $ 2 $ 8 $ — Federal-Mogul TP Liners, Inc. $ 8 $ — $ 1 Frenos Hidraulicos Auto $ 1 $ — $ — Montagewerk Abgastechnik Emden GmbH $ 2 $ — $ — The following table is a summary of amounts due to and from the Company's related parties as of June 30, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 Receivables Payables and accruals Receivables Payables and accruals Icahn Automotive Group LLC $ 54 $ 2 $ 60 $ 12 Anqing TP Goetze Piston Ring Company Limited $ 2 $ 22 $ 1 $ 22 Anqing TP Powder Metallurgy Company Limited $ — $ 1 $ 1 $ 1 Dongsuh Federal-Mogul Industrial Co., Ltd. $ — $ 2 $ 1 $ 2 Federal-Mogul Powertrain Otomotiv A.S. $ 12 $ 27 $ 9 $ 16 Federal-Mogul TP Liner Europe Otomotiv Ltd. Sti. $ — $ 1 $ — $ 1 Federal-Mogul Izmit Piston ve Pim Uretim Tesisleri A.S. $ — $ 3 $ — $ — Federal-Mogul TP Liners, Inc. $ 2 $ 7 $ 2 $ 7 Farloc Argentina SAIC $ 1 $ 1 $ — $ — Montagewerk Abgastechnik Emden GmbH $ — $ — $ — $ —

Supplemental Guarantor Condense

Supplemental Guarantor Condensed Consolidating Financial Statements	6 Months Ended
	Jun. 30, 2019
Condensed Financial Information Disclosure [Abstract]
Supplemental Guarantor Condensed Consolidating Financial Statements	19. Supplemental Guarantor Condensed Consolidating Financial Statements Basis of Presentation Substantially all of the Company's existing and future material domestic 100% owned subsidiaries (which are referred to as the Guarantor Subsidiaries) fully and unconditionally guarantee its senior notes on a joint and several basis. However, a subsidiary’s guarantee may be released in certain customary circumstances such as a sale of the subsidiary or all or substantially all of its assets in accordance with the indenture applicable to the notes. The Guarantor Subsidiaries are combined in the presentation below. These consolidating financial statements are presented on the equity method. Under this method, the Company's investments are recorded at cost and adjusted for its ownership share of a subsidiary’s cumulative results of operations, capital contributions and distributions, and other equity changes. You should read the condensed consolidating financial information of the Guarantor Subsidiaries in connection with the Company's condensed consolidated financial statements and related notes of which this note is an integral part. The accompanying supplemental guarantor consolidating financial statements have been updated to reflect the revision as described in Note 2, Summary of Significant Accounting Policies . As discussed in Note 3, Acquisitions and Divestitures , the allocation of the purchase price to the assets acquired and liabilities assumed, including the entities to which it is allocated, is preliminary and subject to change during the measurement period. Distributions There are no significant restrictions on the ability of the Guarantor Subsidiaries to make distributions. STATEMENT OF COMPREHENSIVE INCOME (LOSS) Three Months Ended June 30, 2019 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Revenues Net sales and operating revenues: External $ 1,690 $ 2,814 $ — $ — $ 4,504 Affiliated companies 235 283 — (518 ) — 1,925 3,097 — (518 ) 4,504 Costs and expenses Cost of sales 1,618 2,692 1 (518 ) 3,793 Restructuring charges and asset impairments 43 18 — — 61 Engineering, research, and development 30 48 — — 78 Selling, general, and administrative 148 143 (3 ) — 288 Depreciation and amortization 81 88 — — 169 1,920 2,989 (2 ) (518 ) 4,389 Other expense (income) Non-service postretirement benefit costs (1 ) 5 — — 4 Equity in (income) losses of nonconsolidated affiliates, net of tax (1 ) (16 ) — — (17 ) Other (income) expense, net 30 (43 ) — — (13 ) 28 (54 ) — — (26 ) Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies (23 ) 162 2 — 141 Interest expense: External, net of interest capitalized (6 ) 12 76 — 82 Affiliated companies, net of interest income (6 ) 11 (5 ) — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies (11 ) 139 (69 ) — 59 Income tax expense (benefit) — 27 (13 ) — 14 Equity in net income (loss) from affiliated companies 93 — 82 (175 ) — Net income (loss) 82 112 26 (175 ) 45 Less: Net income (loss) attributable to noncontrolling interests — 19 — — 19 Net income (loss) attributable to Tenneco Inc. $ 82 $ 93 $ 26 $ (175 ) $ 26 Comprehensive income (loss) attributable to Tenneco Inc. $ 51 $ 67 $ (86 ) $ (28 ) $ 4 STATEMENT OF COMPREHENSIVE INCOME (LOSS) Three Months Ended June 30, 2018 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Revenues Net sales and operating revenues: External $ 1,028 $ 1,505 $ — $ — $ 2,533 Affiliated companies 134 156 — (290 ) — 1,162 1,661 — (290 ) 2,533 Costs and expenses Cost of sales 984 1,440 — (290 ) 2,134 Restructuring charges and asset impairments 2 27 — — 29 Engineering, research, and development 19 20 — — 39 Selling, general, and administrative 82 72 — — 154 Depreciation and amortization 24 36 — — 60 1,111 1,595 — (290 ) 2,416 Other expense (income) Non-service postretirement benefit costs 3 — — — 3 Other (income) expense, net 15 (22 ) — 10 3 18 (22 ) — 10 6 Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies 33 88 — (10 ) 111 Interest expense: External, net of interest capitalized 10 3 9 — 22 Affiliated companies, net of interest income (4 ) — 4 — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies 27 85 (13 ) (10 ) 89 Income tax (benefit) expense (2 ) 28 — — 26 Equity in net income (loss) from affiliated companies 37 — 60 (97 ) — Net income (loss) 66 57 47 (107 ) 63 Less: Net income (loss) attributable to noncontrolling interests — 16 — — 16 Net income (loss) attributable to Tenneco Inc. $ 66 $ 41 $ 47 $ (107 ) $ 47 Comprehensive income (loss) attributable to Tenneco Inc. $ 66 $ 41 $ (41 ) $ (107 ) $ (41 ) Six Months Ended June 30, 2019 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Revenues Net sales and operating revenues: External $ 3,381 $ 5,607 $ — $ — $ 8,988 Affiliated companies 453 564 — (1,017 ) — 3,834 6,171 — (1,017 ) 8,988 Costs and expenses Cost of sales 3,294 5,380 — (1,017 ) 7,657 Restructuring charges and asset impairments 51 34 — — 85 Goodwill impairment charge 33 27 — — 60 Engineering, research, and development 69 101 — — 170 Selling, general, and administrative 326 278 — — 604 Depreciation and amortization 164 174 — — 338 3,937 5,994 — (1,017 ) 8,914 Other expense (income) Non-service postretirement benefit costs (1 ) 7 — — 6 Equity in losses of nonconsolidated affiliates, net of tax (2 ) (31 ) — — (33 ) Other (income) expense, net 23 (39 ) — — (16 ) 20 (63 ) — — (43 ) Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies (123 ) 240 — — 117 Interest expense: External, net of interest capitalized 5 17 141 — 163 Affiliated companies, net of interest income (14 ) 19 (5 ) — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies (114 ) 204 (136 ) — (46 ) Income tax expense (benefit) (18 ) 57 (25 ) — 14 Equity in net income (loss) from affiliated companies 72 — 20 (92 ) — Net income (loss) (24 ) 147 (91 ) (92 ) (60 ) Less: Net income (loss) attributable to noncontrolling interests — 31 — — 31 Net income (loss) attributable to Tenneco Inc. $ (24 ) $ 116 $ (91 ) $ (92 ) $ (91 ) Comprehensive income (loss) attributable to Tenneco Inc. $ (17 ) $ 128 $ (79 ) $ (111 ) $ (79 ) Six Months Ended June 30, 2018 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Revenues Net sales and operating revenues: External $ 2,060 $ 3,054 $ — $ — $ 5,114 Affiliated companies 257 312 — (569 ) — 2,317 3,366 — (569 ) 5,114 Costs and expenses Cost of sales 1,991 2,905 — (569 ) 4,327 Restructuring charges and asset impairments 3 38 — — 41 Engineering, research, and development 37 42 — — 79 Selling, general, and administrative 155 150 — — 305 Depreciation and amortization 47 73 — — 120 2,233 3,208 — (569 ) 4,872 Other expense (income) Non-service postretirement benefit costs 6 — — — 6 Other (income) expense, net 24 (31 ) — 10 3 30 (31 ) — 10 9 Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies 54 189 — (10 ) 233 Interest expense: External, net of interest capitalized 20 6 19 — 45 Affiliated companies, net of interest income (7 ) — 7 — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies 41 183 (26 ) (10 ) 188 Income tax (benefit) expense (1 ) 52 — — 51 Equity in net income (loss) from affiliated companies 85 — 133 (218 ) — Net income (loss) 127 131 107 (228 ) 137 Less: Net income (loss) attributable to noncontrolling interests — 30 — — 30 Net income (loss) attributable to Tenneco Inc. $ 127 $ 101 $ 107 $ (228 ) $ 107 Comprehensive income (loss) attributable to Tenneco Inc. $ 127 $ 101 $ 41 $ (228 ) $ 41 BALANCE SHEETS June 30, 2019 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated ASSETS Current assets: Cash and cash equivalents $ 216 $ 165 $ 3 $ — $ 384 Restricted cash — 6 — — 6 Receivables, net 965 1,882 — — 2,847 Inventories, net 927 1,280 — — 2,207 Prepayments and other current assets 193 329 28 — 550 Total current assets 2,301 3,662 31 — 5,994 Property, plant and equipment, net 1,142 2,418 9 — 3,569 Investment in affiliated companies 1,637 — 5,204 (6,841 ) — Long-term receivables, net 9 1 — — 10 Goodwill 470 329 — — 799 Intangibles, net 971 678 — — 1,649 Investments in nonconsolidated affiliates 42 489 — — 531 Deferred income taxes 256 212 12 — 480 Other assets 150 396 14 — 560 Total assets $ 6,978 $ 8,185 $ 5,270 $ (6,841 ) $ 13,592 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Short-term debt, including current maturities of long-term debt $ 1 $ 154 $ 15 $ — $ 170 Accounts payable 904 1,821 — — 2,725 Accrued compensation and employee benefits 87 304 — — 391 Accrued income taxes — — — — — Accrued expenses and other current liabilities 426 542 56 — 1,024 Total current liabilities 1,418 2,821 71 — 4,310 Long-term debt 250 11 5,247 — 5,508 Intercompany due to (due from) 1,905 (196 ) (1,709 ) — — Deferred income taxes — 110 — — 110 Pension, postretirement benefits and other liabilities 817 835 23 — 1,675 Commitments and contingencies Total liabilities 4,390 3,581 3,632 — 11,603 Redeemable noncontrolling interests — 145 — — 145 Tenneco Inc. shareholders’ equity 2,588 4,253 1,638 (6,841 ) 1,638 Noncontrolling interests — 206 — — 206 Total equity 2,588 4,459 1,638 (6,841 ) 1,844 Total liabilities, redeemable noncontrolling interests and equity $ 6,978 $ 8,185 $ 5,270 $ (6,841 ) $ 13,592 BALANCE SHEETS December 31, 2018 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated ASSETS Current assets: Cash and cash equivalents $ 329 $ 364 $ 4 $ — $ 697 Restricted cash — 5 — — 5 Receivables, net 943 1,629 — — 2,572 Inventories, net 958 1,287 — — 2,245 Prepayments and other current assets 254 311 25 — 590 Total current assets 2,484 3,596 29 — 6,109 Property, plant and equipment, net 1,131 2,361 9 — 3,501 Investment in affiliated companies 1,421 — 4,856 (6,277 ) — Long-term receivables, net 9 1 — — 10 Goodwill 263 383 223 — 869 Intangibles, net 1,007 510 2 — 1,519 Investments in nonconsolidated affiliates 43 501 — — 544 Deferred income taxes 255 200 12 — 467 Other assets 48 180 — (15 ) 213 Total assets $ 6,661 $ 7,732 $ 5,131 $ (6,292 ) $ 13,232 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Short-term debt, including current maturities of long-term debt $ 1 $ 152 $ — $ — $ 153 Accounts payable 858 1,894 7 — 2,759 Accrued compensation and employee benefits 88 255 — — 343 Accrued income taxes — 52 27 (15 ) 64 Accrued expenses and other current liabilities 436 488 77 — 1,001 Total current liabilities 1,383 2,841 — 111 (15 ) 4,320 Long-term debt 3 32 5,305 — 5,340 Intercompany due to (due from) 2,726 (215 ) (2,511 ) — — Deferred income taxes — 88 — — 88 Postretirement benefits and other liabilities 225 705 500 — 1,430 Commitments and contingencies Total liabilities 4,337 3,451 3,405 (15 ) 11,178 Redeemable noncontrolling interests — 138 — — 138 Tenneco Inc. shareholders’ equity 2,324 3,953 1,726 (6,277 ) 1,726 Noncontrolling interests — 190 — — 190 Total equity 2,324 4,143 1,726 (6,277 ) 1,916 Total liabilities, redeemable noncontrolling interests and equity $ 6,661 $ 7,732 $ 5,131 $ (6,292 ) $ 13,232 STATEMENT OF CASH FLOWS Six Months Ended June 30, 2019 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Operating Activities Net cash provided by (used in) operating activities $ (8 ) $ (2 ) $ (90 ) $ — $ (100 ) Investing Activities Acquisition of business, net of cash acquired — (158 ) — — — (158 ) Proceeds from sale of assets 1 4 — — 5 Cash payments for property, plant and equipment (118 ) (261 ) — — (379 ) Net proceeds from sale of business 6 16 — — 22 Other 1 (2 ) — — (1 ) Proceeds from deferred purchase price of factored receivables — 147 — — 147 Net cash used in investing activities (110 ) (254 ) — — (364 ) Financing Activities Cash dividends — — (20 ) — (20 ) Repayment of term loans and notes — (139 ) (51 ) — (190 ) Proceeds from term loans and notes — 111 — — 111 Issuance (repurchase) of common shares — — (2 ) — (2 ) Decrease in bank overdrafts — (8 ) — — (8 ) Borrowings on revolving lines of credit 4,047 117 361 — 4,525 Payments on revolving lines of credit (3,797 ) (111 ) (346 ) — (4,254 ) Other — (1 ) — — (1 ) Intercompany dividends and net (decrease) increase in intercompany obligations (245 ) 98 147 — — Distribution to noncontrolling interests partners — (20 ) — — (20 ) Net cash (used in) provided by financing activities 5 47 89 — 141 Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash — 11 — — 11 Increase (decrease) in cash, cash equivalents and restricted cash (113 ) (198 ) (1 ) — (312 ) Cash, cash equivalents and restricted cash, January 1 329 369 4 — 702 Cash, cash equivalents and restricted cash, June 30 $ 216 $ 171 $ 3 $ — $ 390 STATEMENT OF CASH FLOWS Six Months Ended June 30, 2018 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Operating Activities Net cash provided by (used in) operating activities $ 79 $ 13 $ (5 ) $ (9 ) $ 78 Investing Activities Proceeds from sale of assets 1 4 — — 5 Cash payments for property, plant and equipment (77 ) (97 ) — — (174 ) Proceeds from deferred purchase price of factored receivables — 66 — — 66 Other 2 — — — 2 Net cash used in investing activities (74 ) (27 ) — — (101 ) Financing Activities Proceeds from term loans and notes — 9 — — 9 Repayments of term loans and notes (10 ) (18 ) — — (28 ) Borrowings on revolving lines of credit 2,349 45 275 — 2,669 Payments on revolving lines of credit (2,315 ) (38 ) (261 ) — (2,614 ) Issuance (repurchase) of common shares — — (1 ) — (1 ) Cash dividends — — (25 ) — (25 ) Net increase (decrease) in bank overdrafts — (7 ) — — (7 ) Distribution to noncontrolling interests partners — (28 ) — — (28 ) Other (2 ) (20 ) — — (22 ) Intercompany dividends and net (decrease) increase in intercompany obligations (32 ) 6 17 9 — Net cash (used in) provided by financing activities (10 ) (51 ) 5 9 (47 ) Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash — (11 ) — — (11 ) Increase (decrease) in cash, cash equivalents and restricted cash (5 ) (76 ) — — (81 ) Cash, cash equivalents and restricted cash, January 1 7 311 — — 318 Cash, cash equivalents and restricted cash, June 30 $ 2 $ 235 $ — $ — $ 237

Summary of Accounting Policies

Summary of Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation — Interim Financial Statements Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States ("U.S. GAAP") have been condensed or omitted pursuant to such rules and regulations. These statements include all adjustments (consisting of normal recurring adjustments) management believes are necessary to fairly state the results of operations, comprehensive income, financial position, changes in shareholders' equity, and cash flows. The Company's management believes the disclosures are adequate to make the information presented not misleading when read in conjunction with the audited consolidated financial statements and the notes thereto included in its Annual Report on Form 10-K for the year ended December 31, 2018 , which was filed with the Securities and Exchange Commission on March 18, 2019. Operating results for the three and six months ended June 30, 2019 are not necessarily indicative of the results that may be expected for the year ending December 31, 2019 . The Company expects to separate its businesses to form two new, independent publicly traded companies, an Aftermarket and Ride Performance company ("DRiV") and a new Powertrain Technology company ("New Tenneco"). The Company currently expects the separation of the businesses to occur through a spinoff transaction of DRiV in mid-2020. In preparation for the spinoff, the Company began to manage and report its DRiV businesses through two new operating segments, in the first quarter of 2019, as compared to the three operating segments it had previously reported. The DRiV operating segments consist of Motorparts and Ride Performance. The new Motorparts operating segment consists of the previously reported Aftermarket operating segment as well as the aftermarket portion of the previously reported Motorparts operating segment. The Ride Performance operating segment consists of the previously reported Ride Performance operating segment as well as the OE Braking business that was included in the previously reported Motorparts operating segment. As such, prior period operating segment results and related disclosures have been conformed to reflect the Company's current operating segments. The future New Tenneco consists of two existing operating segments, Powertrain and Clean Air. See Note 17, Segment Information .
Redeemable Noncontrolling Interests	Redeemable Noncontrolling Interests — The Company has noncontrolling interests with redemption features. These redemption features could require the Company to make an offer to purchase the noncontrolling interests at fair value in the event of a change in control of Tenneco Inc. or certain of its subsidiaries. The redemption of these redeemable noncontrolling interests is not solely within the Company's control. Accordingly, these noncontrolling interests are presented in the temporary equity section of the Company's condensed consolidated balance sheets. The Company does not believe it is probable the redemption features related to these noncontrolling interest securities will be triggered, as a change in control event is generally not probable until it occurs, except as discussed in
Earnings (loss) per share	Earnings (loss) per share —
Reclassifications	Reclassifications: Certain amounts in the prior years have been aggregated or disaggregated to conform to current year presentation. These reclassifications have no effect on previously reported earnings before income taxes and noncontrolling interests or net income, other comprehensive income (loss), current or total assets, current or total liabilities, and the cash provided (used) by operating, investing or financing activities within the condensed consolidated financial statements.
New Accounting Pronouncements	New Accounting Pronouncements Adoption of New Accounting Standards Comprehensive income — In February 2018, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220). The amendments in this update allow a reclassification from accumulated other comprehensive income (loss) to accumulated deficit for stranded tax effects resulting from the Tax Cuts and Jobs Act ("TCJA"). The Company has elected not to adopt the optional reclassification. Leases — In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). This update supersedes the lease requirements in Topic 840, Leases. The objective of Topic 842 is to establish the principles that lessees and lessors shall apply to report useful information to users of financial statements about the amount, timing, and uncertainty of cash flows arising from a lease. For public business entities, the standard is effective for financial statements issued for annual periods beginning after December 15, 2018, and interim periods within those annual periods. The Company adopted this update on January 1, 2019 using the modified retrospective method without the recasting of comparative periods’ financial information, as permitted by the transition guidance. The Company adopted the package of practical expedients that allows companies to not reassess its previous conclusions related to contracts that contain leases, existing lease classification, and initial direct costs, and to carry forward its historical conclusions. It elected the land easements practical expedient allowing the Company not to reassess whether existing or expired land easements not accounted for as leases under previous guidance are or contain leases under the new guidance. It also did not adopt the hindsight practical expedient and has also made an accounting policy election to exempt leases with an initial term of twelve months or less from balance sheet recognition. Instead, short-term leases will be expensed over the lease term. As a part of the implementation effort, the Company reviewed its internal control structure and modified and augmented existing controls, as necessary. The adoption of the new standard resulted in the recording of additional lease assets and lease liabilities of $387 million and $383 million , and a reduction of favorable lease intangibles of $4 million as of January 1, 2019. The standard did not materially affect the Company's condensed consolidated financial position or results of operations and had no effect on cash flows. See Note 14, Leases . Accounting Standards Issued But Not Yet Adopted Intangibles — In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The amendments in this update align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The accounting for the service element of a hosting arrangement that is a service contract is not affected by the amendments in this update. The amendments in this update are effective for interim and annual periods for the Company beginning on January 1, 2020, with early adoption permitted. The amendments in this update should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. The Company is currently evaluating the potential effect of this new guidance on its financial statements. Retirement benefits — In August 2018, the FASB issued ASU 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20). The amendments in this update remove disclosures that no longer are considered cost beneficial, clarify the specific requirements of disclosures, and add disclosure requirements identified as relevant. The amendments in this update are effective for fiscal years ending after December 15, 2020 with early adoption permitted. The Company is currently evaluating the potential effect of this new guidance on its financial statements. Fair value measurements — In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820). The new guidance modifies disclosure requirements related to fair value measurement. The amendments in this ASU are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Implementation on a prospective or retrospective basis varies by specific disclosure requirement. Early adoption is permitted. The standard also allows for early adoption of any removed or modified disclosures upon issuance of this ASU while delaying adoption of the additional disclosures until their effective date. The Company is currently evaluating the potential effect of this new guidance on its financial statements.

Summary of Accounting Policie_2

Summary of Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Redeemable Noncontrolling Interests	The following is a rollforward of activities in the Company's redeemable noncontrolling interests: Six Months Ended June 30, 2019 2018 Balance at beginning of period $ 138 $ 42 Net income (loss) attributable to redeemable noncontrolling interests 15 16 Other comprehensive income (loss) 1 (1 ) Acquisition and other 16 — Purchase accounting measurement period adjustment (8 ) — Dividends declared (17 ) (19 ) Balance at end of period $ 145 $ 38
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Actual weighted average shares outstanding used in calculating earnings (loss) per share were: Three Months Ended June 30, Six months ended June 30, 2019 2018 2019 2018 Weighted average shares of common stock outstanding 80,920,825 51,258,668 80,897,731 51,232,639 Effect of dilutive securities: Restricted stock, PSUs and RSUs — 298,826 — 251,971 Stock options — 49,730 — 61,405 Dilutive shares outstanding 80,920,825 51,607,224 80,897,731 51,546,015
Schedule of Error Corrections and Prior Period Adjustments	The following tables present the effects of these reclassifications and revisions for the condensed consolidated financial statement line items adjusted in the affected periods included within this quarterly report: Three Months Ended June 30, 2018 As Reported Reclasses As Reclassified Revisions As Revised Condensed consolidated statement of income (loss) Revenues Net sales and operating revenues $ 2,537 $ — $ 2,537 $ (4 ) $ 2,533 Costs and expenses Cost of sales 2,159 (23 ) 2,136 (2 ) 2,134 Selling, general, and administrative 156 (2 ) 154 — 154 Depreciation and amortization 59 — 59 1 60 Engineering, research, and development 42 (4 ) 38 1 39 Restructuring charges and asset impairments — 29 29 — 29 2,416 — 2,416 — 2,416 Other expense (income) Loss on sale of receivables 2 (2 ) — — — Non-service pension and other postretirement benefit costs (credits) — 3 3 — 3 Other expense (income), net 6 (3 ) 3 — 3 8 (2 ) 6 — 6 Earnings (loss) before interest expense, income taxes, and noncontrolling interests 113 2 115 (4 ) 111 Interest expense 20 2 22 — 22 Earnings (loss) before income taxes and noncontrolling interests 93 — 93 (4 ) 89 Income tax expense (benefit) 27 — 27 (1 ) 26 Net income (loss) 66 — 66 (3 ) 63 Less: Net income (loss) attributable to noncontrolling interests 16 — 16 — 16 Net income (loss) attributable to Tenneco Inc. $ 50 $ — $ 50 $ (3 ) $ 47 Earnings (loss) per share Basic earnings (loss) per share of common stock $ 0.98 $ — $ 0.98 $ (0.06 ) $ 0.92 Diluted earnings (loss) per share of common stock $ 0.98 $ — $ 0.98 $ (0.06 ) $ 0.92 Three Months Ended June 30, 2018 As Reported Reclasses As Reclassified Revisions As Revised Condensed consolidated statement of comprehensive income (loss) Net income (loss) $ 66 $ — $ 66 $ (3 ) $ 63 Other comprehensive income (loss)—net of tax Foreign currency translation adjustment (100 ) — (100 ) 1 (99 ) Defined benefit plans 4 — 4 — 4 (96 ) — (96 ) 1 (95 ) Comprehensive income (loss) (30 ) — (30 ) (2 ) (32 ) Less: Comprehensive income (loss) attributable to noncontrolling interests 9 — 9 — 9 Comprehensive income (loss) attributable to common shareholders $ (39 ) $ — $ (39 ) $ (2 ) $ (41 ) Six months ended June 30, 2018 As Reported Reclasses As Reclassified Revisions As Revised Condensed consolidated statement of income (loss) Revenues Net sales and operating revenues $ 5,111 $ — $ 5,111 $ 3 $ 5,114 Costs and expenses Cost of sales 4,357 (32 ) 4,325 2 4,327 Selling, general, and administrative 309 (4 ) 305 — 305 Depreciation and amortization 118 — 118 2 120 Engineering, research, and development 83 (5 ) 78 1 79 Restructuring charges and asset impairments — 41 41 — 41 4,867 — 4,867 5 4,872 Other expense (income) Loss on sale of receivables 5 (5 ) — — — Non-service pension and other postretirement benefit costs (credits) — 6 6 — 6 Other expense (income), net 9 (6 ) 3 — 3 14 (5 ) 9 — 9 Earnings (loss) before interest expense, income taxes, and noncontrolling interests 230 5 235 (2 ) 233 Interest expense 40 5 45 — 45 Earnings (loss) before income taxes and noncontrolling interests 190 — 190 (2 ) 188 Income tax expense (benefit) 52 — 52 (1 ) 51 Net income (loss) 138 — 138 (1 ) 137 Less: Net income (loss) attributable to noncontrolling interests 30 — 30 — 30 Net income (loss) attributable to Tenneco Inc. $ 108 $ — $ 108 $ (1 ) $ 107 Earnings (loss) per share Basic earnings (loss) per share of common stock $ 2.12 $ — $ 2.12 $ (0.04 ) $ 2.08 Diluted earnings (loss) per share of common stock $ 2.10 $ — $ 2.10 $ (0.03 ) $ 2.07 Six months ended June 30, 2018 As Reported Reclasses As Reclassified Revisions As Revised Condensed consolidated statement of comprehensive income (loss) Net income (loss) $ 138 $ — $ 138 $ (1 ) $ 137 Other comprehensive income (loss)—net of tax Foreign currency translation adjustment (73 ) — (73 ) 1 (72 ) Defined benefit plans 7 — 7 — 7 (66 ) — (66 ) 1 (65 ) Comprehensive income (loss) 72 — 72 — 72 Less: Comprehensive income (loss) attributable to noncontrolling interests 31 — 31 — 31 Comprehensive income (loss) attributable to common shareholders $ 41 $ — $ 41 $ — $ 41 Six months ended June 30, 2018 As Reported Reclasses As Reclassified Revisions As Revised Condensed consolidated statements of cash flow Operating Activities Net income (loss) $ 138 $ — $ 138 $ (1 ) $ 137 Net cash provided by (used by) operating activities 78 — 78 — 78 Investing Activities Net cash used by investing activities (101 ) — (101 ) — (101 ) Financing Activities Proceeds from term loans and notes — — — 9 9 Repayments of term loans and notes — (12 ) (12 ) (16 ) (28 ) Retirement of long-term debt (12 ) 12 — — — Borrowings on revolving lines of credit — — — 2,669 2,669 Payments on revolving lines of credit — — — (2,614 ) (2,614 ) Net increase (decrease) in revolver borrowings 48 — 48 (48 ) — Issuance (repurchase) of common shares (1 ) — (1 ) — (1 ) Cash dividends (25 ) — (25 ) — (25 ) Debt issuance cost of long-term debt (2 ) 2 — — — Purchase of common stock under the share repurchase program — — — — — Net increase (decrease) in bank overdrafts (7 ) — (7 ) — (7 ) Net increase (decrease) in short-term borrowings secured by accounts receivable (20 ) 20 — — — Other — (22 ) (22 ) — (22 ) Distributions to noncontrolling interest partners (28 ) — (28 ) — (28 ) Net cash provided by (used by) financing activities (47 ) — (47 ) — (47 ) Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash (11 ) — (11 ) — (11 ) Increase (decrease) in cash, cash equivalents and restricted cash (81 ) — (81 ) — (81 ) Cash, cash equivalents and restricted cash, beginning of period 318 — 318 — 318 Cash, cash equivalents and restricted cash, end of period $ 237 $ — $ 237 $ — $ 237 Three Months Ended June 30, 2018 As Reported Revisions As Revised Condensed consolidated statements of changes in shareholders' equity Accumulated Deficit Balance March 31 $ (902 ) $ (61 ) $ (963 ) Net income (loss) attributable to Tenneco Inc. 50 (3 ) 47 Cash dividends declared (12 ) — (12 ) Balance June 30 $ (864 ) $ (64 ) $ (928 ) Accumulated Other Comprehensive Income (loss) Balance March 31 $ (519 ) $ 3 $ (516 ) Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (93 ) 1 (92 ) Defined benefit plans 4 — 4 Balance June 30 $ (608 ) $ 4 $ (604 ) Total Tenneco Inc. Shareholders' Equity Balance March 31 $ 765 $ (58 ) $ 707 Net income (loss) attributable to Tenneco Inc. 50 (3 ) 47 Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (93 ) 1 (92 ) Defined benefit plans 4 — 4 Comprehensive income (loss) (39 ) (2 ) (41 ) Cash dividends (12 ) — (12 ) Common Stock Issued 3 — 3 Balance June 30 $ 717 $ (60 ) $ 657 Total Equity Balance March 31 $ 825 $ (58 ) $ 767 Net income (loss) 57 (3 ) 54 Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (98 ) 1 (97 ) Defined benefit plans 4 — 4 Comprehensive income (loss) (37 ) (2 ) (39 ) Common Stock Issued 3 — 3 Cash dividends (30 ) — (30 ) Balance June 30 $ 761 $ (60 ) $ 701 Six months ended June 30, 2018 As Reported Revisions As Revised Condensed consolidated statements of changes in shareholders' equity Accumulated Deficit Balance January 1 $ (946 ) $ (63 ) $ (1,009 ) Net income (loss) attributable to Tenneco Inc. 108 (1 ) 107 Cash dividends declared (25 ) — (25 ) Adjustments to adopt new accounting standards (1 ) — (1 ) Balance June 30 $ (864 ) $ (64 ) $ (928 ) Accumulated Other Comprehensive Income (loss) Balance January 1 $ (541 ) $ 3 $ (538 ) Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (74 ) 1 (73 ) Defined benefit plans 7 — 7 Balance June 30 $ (608 ) $ 4 $ (604 ) Total Tenneco Inc. Shareholders' Equity Balance January 1 $ 696 $ (60 ) $ 636 Net income (loss) attributable to Tenneco Inc. 108 (1 ) 107 Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (74 ) 1 (73 ) Defined benefit plans 7 — 7 Comprehensive income (loss) 41 — 41 Adjustments to adopt new accounting standards (1 ) — (1 ) Cash dividends (25 ) — (25 ) Common Stock Issued 6 — 6 Balance June 30 $ 717 $ (60 ) $ 657 Total Equity Balance January 1 $ 742 $ (60 ) $ 682 Net income (loss) 122 (1 ) 121 Other comprehensive income (loss)—net of tax: Foreign currency translation adjustment (72 ) 1 (71 ) Defined benefit plans 7 — 7 Comprehensive income (loss) 57 — 57 Common Stock Issued 6 — 6 Cash dividends (43 ) — (43 ) Adjustments to adopt new accounting standards (1 ) — (1 ) Balance June 30 $ 761 $ (60 ) $ 701

Acquisitions and Divestitures (

Acquisitions and Divestitures (Tables)	6 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table summarizes the preliminary fair values of assets acquired and liabilities assumed as of the acquisition date and the measurement period adjustments made during the six months ended June 30, 2019: Initial Allocation Adjustments Revised Allocation Cash, cash equivalents and restricted cash $ 4 $ — $ 4 Customer notes and accounts receivable 19 — 19 Inventories 31 — 31 Prepayments and other current assets 2 — 2 Property, plant, and equipment 8 — 8 Goodwill 28 2 30 Intangibles 135 (2 ) 133 Other assets 9 — 9 Total assets acquired $ 236 $ — $ 236 Short-term debt, including current maturities of long-term debt $ 10 $ — $ 10 Accounts payable 11 — 11 Accrued compensation and employee benefits 12 — 12 Deferred income taxes 18 — 18 Deferred credits and other liabilities 6 — 6 Total liabilities assumed 57 — 57 Redeemable noncontrolling interest 17 — 17 Net assets acquired $ 162 $ — $ 162 The following table summarizes the preliminary fair values of assets acquired and liabilities assumed as of the acquisition date and the measurement period adjustments made during the six months ended June 30, 2019 : Initial Allocation Adjustments Revised Allocation Cash, cash equivalents and restricted cash $ 277 $ — $ 277 Customer notes and accounts receivable 1,258 — 1,258 Other receivables 62 — 62 Inventories 1,551 (5 ) 1,546 Prepayments and other current assets 198 1 199 Property, plant and equipment 1,711 (28 ) 1,683 Long-term receivables 48 — 48 Goodwill 825 (40 ) 785 Intangibles 1,530 71 1,601 Investments in nonconsolidated affiliates 528 (15 ) 513 Deferred income taxes 166 — 166 Other assets 55 (6 ) 49 Total assets acquired $ 8,209 $ (22 ) $ 8,187 Short-term debt, including current maturities of long-term debt $ 130 $ — $ 130 Accounts payable 957 — 957 Accrued compensation and employee benefits 231 — 231 Accrued income taxes 49 — 49 Accrued expenses and other current liabilities 522 (8 ) 514 Long-term debt 1,315 — 1,315 Deferred income taxes 56 — 56 Pension and postretirement benefits 879 — 879 Deferred credits and other liabilities 124 (5 ) 119 Total liabilities assumed 4,263 (13 ) 4,250 Redeemable noncontrolling interests 96 (8 ) 88 Noncontrolling interests 143 (1 ) 142 Net assets and noncontrolling interests acquired $ 3,707 $ — $ 3,707
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination	Other intangible assets acquired include the following: Estimated Fair Value Weighted-Average Useful Lives Definite-lived intangible assets: Customer platforms and relationships $ 37 10 years Technology rights 41 10 years Total definite-lived intangible assets 78 Indefinite-lived intangible assets: Trade names and trademarks 55 Total $ 133 Other intangible assets acquired include the following: Estimated Fair Value Weighted-Average Useful Lives Definite-lived intangible assets: Customer platforms and relationships $ 978 10 years Technology rights 68 10 years Packaged kits know-how 54 10 years Catalogs 40 10 years Licensing agreements 64 4.5 years Land use rights 30 42.8 years Total definite-lived intangible assets 1,234 10.5 years Indefinite-lived intangible assets: Trade names and trademarks 367 Total $ 1,601
Pro Forma Information	The following table summarizes, on a pro forma basis, the combined results of operations of the Company and the Federal-Mogul Acquisition, and the related financing, if the transaction had occurred as of January 1, 2017. The pro forma results are not necessarily indicative of either the actual consolidated results had the Federal-Mogul Acquisition occurred on January 1, 2017 or of future consolidated operating results. Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Net sales and operating revenues $ 4,504 $ 4,618 $ 8,988 $ 9,298 Earnings (loss) before income taxes and noncontrolling interests $ 171 $ 232 $ 201 $ 458 Net income (loss) attributable to Tenneco Inc. $ 43 $ 78 $ (27 ) $ 171 Basic earnings (loss) per share of common stock $ 0.54 $ 0.97 $ (0.33 ) $ 2.13 Diluted earnings (loss) per share of common stock $ 0.54 $ 0.96 $ (0.33 ) $ 2.12
Disposal Groups, Including Discontinued Operations	The related assets and liabilities were classified as held for sale as of June 30, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 Assets Inventories $ 3 $ 33 Other current assets — 5 Long-lived assets 1 23 Total assets held for sale $ 4 $ 61 Liabilities Accounts payable $ 2 $ 21 Accrued liabilities — 7 Other liabilities 1 11 Total liabilities held for sale $ 3 $ 39

Restructuring Charges and Ass_2

Restructuring Charges and Asset Impairments, Net (Tables)	6 Months Ended
	Jun. 30, 2019
Restructuring and Related Activities [Abstract]
Schedule of Restructuring	Amounts related to activities that were charges to restructuring reserves, including costs incurred to support future structural cost reductions, by reportable segments are as follows: Reportable Segments Clean Air Powertrain Ride Performance Motorparts Total Reportable Segments Corporate Total Balance as of December 31, 2018 $ 17 $ 15 $ 25 $ 43 $ 100 $ 3 $ 103 Provisions 5 1 13 4 23 1 24 Payments (6 ) (3 ) (13 ) (14 ) (36 ) (2 ) (38 ) Balance as of March 31, 2019 16 13 25 33 87 2 89 Provisions 14 17 22 8 61 — 61 Revisions to estimates — — — (2 ) (2 ) — (2 ) Payments (2 ) (4 ) (19 ) (7 ) (32 ) (1 ) (33 ) Balance as of June 30, 2019 $ 28 $ 26 $ 28 $ 32 $ 114 $ 1 $ 115 Reportable Segments Clean Air Powertrain Ride Performance Motorparts Total Reportable Segments Corporate Total Balance as of December 31, 2017 $ 14 $ — $ 7 $ 4 $ 25 $ — $ 25 Provisions 1 — 8 3 12 — 12 Payments (5 ) — (9 ) (2 ) (16 ) — (16 ) Balance as of March 31, 2018 10 — 6 5 21 — 21 Provisions 17 — 9 1 27 2 29 Payments (3 ) — (10 ) (2 ) (15 ) — (15 ) Balance as of June 30, 2018 $ 24 $ — $ 5 $ 4 $ 33 $ 2 $ 35 The following table provides a summary of the Company's restructuring liabilities and related activity for each type of exit costs: Employee Costs Facility Closure and Other Costs Total Balance as of December 31, 2018 $ 98 $ 5 $ 103 Provisions 11 13 24 Payments (25 ) (13 ) (38 ) Balance as of March 31, 2019 84 5 89 Provisions 44 17 61 Revisions to estimates (2 ) — (2 ) Payments (16 ) (17 ) (33 ) Balance as of June 30, 2019 $ 110 $ 5 $ 115 Employee Costs Facility Closure and Other Costs Total Balance as of December 31, 2017 $ 19 $ 6 $ 25 Provisions 10 2 12 Payments (13 ) (3 ) (16 ) Balance as of March 31, 2018 16 5 21 Provisions 26 3 29 Payments (12 ) (3 ) (15 ) Balance as of June 30, 2018 $ 30 $ 5 $ 35 For the three and six months ended June 30, 2019 and 2018 , restructuring charges, net and asset impairments by segment are as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Clean Air $ 15 $ 17 $ 20 $ 18 Powertrain 17 — 18 — Ride Performance 22 9 35 17 Motorparts 7 1 11 4 Corporate — 2 1 2 $ 61 $ 29 $ 85 $ 41

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Schedule of Inventory	At June 30, 2019 and December 31, 2018 , inventory consists of the following: June 30, 2019 December 31, 2018 Finished goods $ 1,110 $ 1,116 Work in process 497 562 Raw materials 489 457 Materials and supplies 111 110 $ 2,207 $ 2,245

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets—Net (Tables)	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	At June 30, 2019 and December 31, 2018 , goodwill consists of the following: Six Months Ended June 30, 2019 Clean Air Powertrain Ride Performance Motorparts Total Gross carrying amount at December 31, 2018 $ 22 $ 388 $ 210 $ 611 $ 1,231 Measurement period adjustments — 21 — (67 ) (46 ) Acquisitions — — 28 — 28 Gross carrying amount at March 31, 2019 22 409 238 544 1,213 Measurement period adjustments — 3 2 3 8 Foreign exchange — — — — — Gross carrying amount at June 30, 2019 22 412 240 547 1,221 Accumulated impairment loss at December 31, 2018 — — (143 ) (219 ) (362 ) Impairment — — (60 ) — (60 ) Accumulated impairment loss at March 31, 2019 — — (203 ) (219 ) (422 ) Foreign exchange — — — — — Accumulated impairment loss at June 30, 2019 — — (203 ) (219 ) (422 ) Net carrying value at end of period $ 22 $ 412 $ 37 $ 328 $ 799
Schedule of Indefinite-Lived Intangible Assets	At June 30, 2019 and December 31, 2018, the Company's intangible assets consist of the following: June 30, 2019 December 31, 2018 Useful Lives Gross Carrying Value Accumulated Amortization Net Carrying Value Gross Carrying Value Accumulated Amortization Net Carrying Value Definite-lived intangible assets: Customer relationships and platforms 10 years $ 1,014 $ (75 ) $ 939 $ 964 $ (24 ) $ 940 Customer contract 10 years 8 (6 ) 2 8 (5 ) 3 Patents 10 to 17 years 1 (1 ) — 1 (1 ) — Technology rights 10 to 30 years 136 (31 ) 105 98 (27 ) 71 Packaged kits know-how 10 years 54 (4 ) 50 36 (1 ) 35 Catalogs 10 years 40 (3 ) 37 — — — Licensing agreements 3 to 5 years 63 (11 ) 52 66 (3 ) 63 Land use rights 28 to 46 years 46 (2 ) 44 44 (2 ) 42 1,362 (133 ) 1,229 1,217 (63 ) 1,154 Indefinite-lived intangible assets: Trade names and trademarks 420 — 420 365 — 365 Total $ 1,782 $ (133 ) $ 1,649 $ 1,582 $ (63 ) $ 1,519
Schedule of Finite-Lived Intangible Assets	At June 30, 2019 and December 31, 2018, the Company's intangible assets consist of the following: June 30, 2019 December 31, 2018 Useful Lives Gross Carrying Value Accumulated Amortization Net Carrying Value Gross Carrying Value Accumulated Amortization Net Carrying Value Definite-lived intangible assets: Customer relationships and platforms 10 years $ 1,014 $ (75 ) $ 939 $ 964 $ (24 ) $ 940 Customer contract 10 years 8 (6 ) 2 8 (5 ) 3 Patents 10 to 17 years 1 (1 ) — 1 (1 ) — Technology rights 10 to 30 years 136 (31 ) 105 98 (27 ) 71 Packaged kits know-how 10 years 54 (4 ) 50 36 (1 ) 35 Catalogs 10 years 40 (3 ) 37 — — — Licensing agreements 3 to 5 years 63 (11 ) 52 66 (3 ) 63 Land use rights 28 to 46 years 46 (2 ) 44 44 (2 ) 42 1,362 (133 ) 1,229 1,217 (63 ) 1,154 Indefinite-lived intangible assets: Trade names and trademarks 420 — 420 365 — 365 Total $ 1,782 $ (133 ) $ 1,649 $ 1,582 $ (63 ) $ 1,519
Finite-lived Intangible Assets Amortization Expense	The amortization expense associated with definite-lived intangible assets was as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Amortization expense $ 33 $ — $ 68 $ 1 The expected future amortization expense for the Company's definite-lived intangible assets is as follows: 2019 2020 2021 2022 2023 2024 and thereafter Total Expected amortization expense $ 70 $ 139 $ 138 $ 134 $ 130 $ 618 $ 1,229

Investment in Nonconsolidated_2

Investment in Nonconsolidated Affiliates (Tables)	6 Months Ended
	Jun. 30, 2019
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	The following tables present summarized aggregated financial information of the Company's nonconsolidated affiliates for the three and six months ended June 30, 2019 . The amounts represent 100% of the interest in the nonconsolidated affiliates and not the Company's proportionate share: Three Months Ended June 30, 2019 Statements of Income Otomotiv A.S. Anqing TP Goetze Other Total Sales $ 85 $ 39 $ 120 $ 244 Gross profit $ 22 $ 10 $ 23 $ 55 Income from continuing operations $ 17 $ 9 $ 11 $ 37 Net income $ 21 $ 9 $ 11 $ 41 Six Months Ended June 30, 2019 Statements of Income Otomotiv A.S. Anqing TP Goetze Other Total Sales $ 176 $ 78 $ 245 $ 499 Gross profit $ 43 $ 26 $ 46 $ 115 Income from continuing operations $ 36 $ 20 $ 24 $ 80 Net income $ 39 $ 18 $ 22 $ 79 The Company's ownership interest in affiliates accounted for under the equity method is as follows: June 30, 2019 December 31, 2018 Anqing TP Goetze Piston Ring Company Limited (China) 35.7 % 35.7 % Anqing TP Powder Metallurgy Co., Ltd (China) 20.0 % 20.0 % Dongsuh Federal-Mogul Industrial Co. Ltd. (Korea) 50.0 % 50.0 % Farloc Argentina SAIC Y F (Argentina) 23.9 % 23.9 % Federal-Mogul Powertrain Otomotiv A.S. (Turkey) 50.0 % 50.0 % Federal-Mogul TP Liner Europe Otomotiv Ltd. Sti. (Turkey) 25.0 % 25.0 % Federal-Mogul TP Liners, Inc. (USA) 46.0 % 46.0 % Frenos Hidraulicos Automotrices, S.A. de C.V. (Mexico) 49.0 % 49.0 % JURID do Brasil Sistemas Automotivos Ltda. (Brazil) 19.9 % 19.9 % KB Autosys Co., Ltd. (Korea) 33.6 % 33.6 % Montagewerk Abgastechnik Emden GmbH (Germany) 50.0 % 50.0 % The Company's investments in its nonconsolidated affiliates at June 30, 2019 and December 31, 2018 are: June 30, 2019 December 31, 2018 Investments in nonconsolidated affiliates $ 531 $ 544 The following table represents the activity from the Company's investments in its nonconsolidated affiliates for the three and six months ended June 30, 2019 and 2018 : Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Equity earnings (losses) of nonconsolidated affiliates, net of tax $ 17 $ — $ 33 $ — Cash dividends received from nonconsolidated affiliates $ 12 $ — $ 27 $ —

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summarization for Foreign Currency Forward Purchase and Sale Contracts	The following table summarizes by position the notional amounts for foreign currency forward contracts as of June 30, 2019 (all of which mature in 2019): Notional Amount Long positions $ (26 ) Short positions $ 26
Schedule of Derivative Instruments	The following table is a summary of the carrying value of derivative and non-derivative instruments designated as hedges as of June 30, 2019 : Carrying Value Balance sheet classification June 30, 2019 December 31, 2018 Commodity price hedge contracts designated as cash flow hedges Accrued expenses and other current liabilities $ — $ 2 Foreign currency borrowings designated as net investment hedges Long-term debt $ 880 $ 863 The following table represents the effects before reclassification into net income of derivative and non-derivative instruments designated as hedges in accumulated other comprehensive income (loss) three and six month periods ended June 30, 2019 and 2018: Amount of gain (loss) recognized in accumulated OCI or OCL (effective portion): Three Months Ended June 30, Six Months Ended June 30, 2019 2019 Commodity price hedge contracts designated as cash flow hedges $ (3 ) $ 1 Foreign currency borrowings designated as net investment hedges $ (12 ) $ 7

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Carrying and Estimated Fair Value	The following table presents assets and liabilities included in the Company's condensed consolidated balance sheets as of June 30, 2019 and December 31, 2018 that are recognized at fair value on a recurring basis, and indicate the fair value hierarchy utilized to determine such fair value: June 30, 2019 December 31, 2018 Fair value Carrying Fair Carrying Fair Derivative instruments: Equity swap agreement Level 2 $ 3 $ 3 $ 4 $ 4 Commodity contracts Level 2 $ — $ — $ (2 ) $ (2 ) Estimated fair values of the Company's outstanding debt were: June 30, 2019 December 31, 2018 Fair value Carrying Fair Carrying Fair Long-term debt (including current maturities): Term loans and senior notes Level 2 $ 5,247 $ 5,035 $ 5,307 $ 5,218

Debt and Other Financing Arra_2

Debt and Other Financing Arrangements (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Summary of Long-term Debt Obligations	Interest expense associated with the amortization of the debt issuance costs and original issue discounts recognized in the Company's condensed consolidated statements of income (loss) consist of the following: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Amortization of debt issuance fees $ 4 $ 1 $ 9 $ 2 A summary of our long-term debt obligations at June 30, 2019 and December 31, 2018 is set forth in the following table: June 30, 2019 December 31, 2018 Principal Carrying Amount (1) Principal Carrying Amount (1) Credit Facilities Revolver Borrowings Due 2023 $ 250 $ 250 $ — $ — Term Loans LIBOR plus 1.75% Term Loan A due 2019 through 2023 1,658 1,649 1,700 1,691 LIBOR plus 3.00% Term Loan B due 2019 through 2025 (2) 1,692 1,626 1,700 1,629 Senior Unsecured Notes $225 million of 5.375% Senior Notes due 2024 225 222 225 222 $500 million of 5.000% Senior Notes due 2026 500 494 500 493 Senior Secured Notes €415 million 4.875% Euro Fixed Rate Notes due 2022 472 489 476 496 €300 million of Euribor plus 4.875% Euro Floating Rate Notes due 2024 341 345 344 349 €350 million of 5.000% Euro Fixed Rate Notes due 2024 398 422 401 427 Other debt, primarily foreign instruments 93 91 108 106 5,588 5,413 Less - maturities classified as current 80 73 Total long-term debt $ 5,508 $ 5,340 (1) Carrying amount is net of unamortized debt issuance costs and debt discounts or premiums. Total unamortized debt issuance costs were $83 million and $90 million as of June 30, 2019 and December 31, 2018. Total unamortized debt (premium) discount, net was $(43) million and $(49) million as of June 30, 2019 and December 31, 2018. (2) As of December 31, 2018, the rate on Term Loan B was LIBOR plus 2.75% .
Financing Arrangements	The Company had availability on its credit facilities as of June 30, 2019 as follows: Credit Facilities as of June 30, 2019 Term Available (b) (in billions) Tenneco Inc. revolving credit facility (a) 2023 $ 1.2 Tenneco Inc. Term Loan A 2023 — Tenneco Inc. Term Loan B 2025 — Subsidiaries’ credit agreements 2020 0.2 $ 1.4 (a) The Company is required to pay commitment fees under the revolving credit facility on the unused portion of the total commitment. (b) Letters of credit reduce the available borrowings under the revolving credit facility, as of June 30, 2019 the revolving credit facility had $20 million in letters of credit outstanding.
Schedule of Gain (Loss) on Securitizations or Asset-backed Financing Arrangements of Financial Assets Accounted for as Sale [Table Text Block]	The Company has securitization programs for some of its accounts receivables, with limited recourse provisions. Borrowings on these securitization programs, which are recorded in short-term debt, at June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Borrowings on securitization programs $ 4 $ 6 The amounts outstanding for these factoring and drafting arrangements as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 (in billions) Accounts receivable outstanding and derecognized $ 1.1 $ 1.0 The deferred purchase price receivable as of June 30, 2019 and December 31, 2018 is as follows: June 30, 2019 December 31, 2018 Deferred purchase price receivable $ 52 $ 154 Proceeds from the factoring of accounts receivable qualifying as sales are as follows: Three months ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in billions) Proceeds from factoring qualifying as sales $ 1.3 $ 0.7 $ 2.5 $ 1.5 Financing charges associated with the factoring of receivables are as follows: Three months ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Financing charges on sale of receivables (a) $ 6 $ 2 $ 14 $ 5 (a) Amount is included in "Interest expense" in the condensed consolidated statements of income (loss).

Pension Plans, Postretirement_2

Pension Plans, Postretirement and Other Employee Benefits (Tables)	6 Months Ended
	Jun. 30, 2019
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost	Components of net periodic benefit cost (credit) for the three months ended June 30, 2019 and 2018 are as follows: Three Months Ended June 30 Pension Other Postretirement Benefits 2019 2018 US Non-U.S. US Non-U.S. 2019 2018 Service cost $ — $ 6 $ — $ 2 $ — $ — Interest cost 14 5 2 3 4 1 Expected return on plan assets (17 ) (4 ) (3 ) (5 ) — — Net amortization: Actuarial loss 1 2 1 2 1 3 Prior service cost (credit) — — — — (2 ) (1 ) Net pension and postretirement costs (credits) $ (2 ) $ 9 $ — $ 2 $ 3 $ 3 Components of net periodic benefit cost (credit) for the six months ended June 30, 2019 and 2018 are as follows: Six Months Ended June 30 Pension Other Postretirement Benefits 2019 2018 US Non-U.S. US Non-U.S. 2019 2018 Service cost $ 1 $ 12 $ — $ 5 $ — $ — Interest cost 27 12 5 6 7 3 Expected return on plan assets (34 ) (9 ) (7 ) (10 ) — — Net amortization: Actuarial loss 2 3 2 4 2 4 Prior service cost (credit) — — — — (4 ) (1 ) Net pension and postretirement costs (credits) $ (4 ) $ 18 $ — $ 5 $ 5 $ 6

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Schedule of Environmental Loss Contingencies	The Company's expected payments of environmental remediation costs for non-indemnified locations are estimated to be approximately: 2019 2020 2021 2022 2023 2024 and thereafter Expected payments $ 7 $ 5 $ 3 $ 3 $ 2 $ 16 The Company maintains the aggregated estimated share of environmental remediation costs for all these sites on a discounted basis in the condensed consolidated balance sheets as follows: June 30, 2019 December 31, 2018 Accrued expenses and other current liabilities $ 8 $ 12 Deferred credits and other liabilities 30 28 $ 38 $ 40
Schedule of Asset Retirement Obligations	The Company maintains ARO liabilities in the condensed consolidated balance sheets as follows: June 30, 2019 December 31, 2018 Accrued expenses and other current liabilities $ 3 $ 3 Deferred credits and other liabilities 12 12 $ 15 $ 15
Warranty Accrual Table	Below is a table that shows the activity in the warranty accrual accounts: 2019 2018 Balance as of December 31 of the prior year $ 45 $ 26 Accruals related to product warranties 5 6 Reductions for payments made (2 ) (3 ) Foreign currency — — Balance as of March 31 $ 48 $ 29 Accruals related to product warranties 16 2 Reductions for payments made (11 ) (2 ) Foreign currency — — Balance as of June 30 $ 53 $ 29

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Lease costs	The components of lease expense were as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Operating lease expense $ 30 $ 64 Short-term lease expense 2 4 Variable lease expense 12 20 Total lease expense $ 44 $ 88 Other information related to leases was as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 41 $ 82 June 30, 2019 Weighted average remaining lease term Weighted average discount rate Operating leases 4.96 years 4.26 % Finance leases 3.05 years 5.08 %
Assets and Liabilities	Supplemental balance sheet information related to leases was as follows: June 30, 2019 Operating leases Operating lease right-of-use assets (a) $ 344 Other current liabilities (b) $ 99 Other long-term liabilities (c) 239 Total operating lease liabilities $ 338 Finance leases Property, plant and equipment, gross $ 2 Accumulated depreciation — Total finance lease right-of-use assets $ 2 Other current liabilities (b) $ 1 Other long-term liabilities (c) 1 Total finance lease liabilities $ 2 (a) Included in "Other assets" in the condensed consolidated balance sheets. (b) Included in "Accrued expenses and other current liabilities" in the condensed consolidated balance sheets. (c) Included in "Deferred credits and other liabilities" in the condensed consolidated balance sheets.
Operating lease liabilities	Maturities of lease liabilities under non-cancellable leases as of June 30, 2019 were as follows: Year ending December 31 Operating leases Finance leases 2019 (excluding the six months ended June 30, 2019) $ 56 $ 1 2020 97 1 2021 75 — 2022 53 — 2023 37 — Thereafter 57 — Total future undiscounted lease payments 375 2 Less imputed interest (37 ) — Total reported lease liability $ 338 $ 2
Finance lease liabilities	Maturities of lease liabilities under non-cancellable leases as of June 30, 2019 were as follows: Year ending December 31 Operating leases Finance leases 2019 (excluding the six months ended June 30, 2019) $ 56 $ 1 2020 97 1 2021 75 — 2022 53 — 2023 37 — Thereafter 57 — Total future undiscounted lease payments 375 2 Less imputed interest (37 ) — Total reported lease liability $ 338 $ 2
Schedule of Future Minimum Payments Due	Future minimum operating lease payments at December 31, 2018 are as follows: 2019 $ 120 2020 100 2021 86 2022 68 2023 56 Beyond 2023 53 $ 483

Share-Based Compensation (Table

Share-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based Compensation	The total share-based compensation expense was as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Cash-settled share-based compensation expense (benefit) $ 1 $ (2 ) — (3 ) Share-settled share-based compensation expense (benefit) 6 2 13 7 $ 7 $ — 13 4
Nonvested Restricted Shares	The following table reflects the status for all nonvested restricted shares, share-settled RSUs, and PSUs as of June 30, 2019 and December 31, 2018 : Restricted Stock Share-Settled RSUs PSUs Shares Weighted Avg. Units Weighted Avg. Units Weighted Avg. Nonvested balance at beginning of period 178,550 $ 55.46 440,403 $ 47.99 227,049 $ 49.18 Granted 34,009 34.66 867,137 34.21 634,511 24.77 Vested (172,050 ) 50.12 (88,590 ) 54.60 — — Forfeited (3,329 ) 62.12 (50,113 ) 41.26 (43,527 ) 43.61 Nonvested balance at end of period 37,180 $ 63.30 1,168,837 $ 38.04 818,033 $ 34.25

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Schedule of Stock by Class	Total common stock outstanding and changes in common stock issued are as follows: Class A Common Stock Class B Common Stock Six Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 Shares issued at beginning of period 71,675,379 66,033,509 23,793,669 Issuance (repurchased) pursuant to benefit plans 123,216 (15,906 ) — Restricted stock forfeited and withheld for taxes (60,081 ) (7,590 ) — Stock options exercised 8,438 (6,975 ) — Shares issued at end of period 71,746,952 66,003,038 23,793,669 Treasury stock 14,592,888 14,592,888 — Total shares outstanding 57,154,064 51,410,150 23,793,669
Schedule of AOCI	The following represents the Company's changes in accumulated other comprehensive income (loss) by component, net of tax for the three and six months ended June 30, 2019 and 2018 : Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Foreign currency translation adjustments and other Balance at beginning of period $ (366 ) $ (244 ) $ (395 ) $ (263 ) Other comprehensive income (loss) before reclassifications adjustments (16 ) (94 ) 11 (75 ) Reclassification from other comprehensive income (loss) — — — — Other comprehensive income (loss) (16 ) (94 ) 11 (75 ) Income tax provision (benefit) (1 ) 2 1 2 Balance at end of period $ (383 ) $ (336 ) $ (383 ) $ (336 ) Pensions and other postretirement benefits Balance at beginning of period $ (296 ) $ (272 ) $ (297 ) $ (275 ) Other comprehensive income (loss) before reclassifications — — — — Reclassification from other comprehensive income (loss) 2 5 3 9 Other comprehensive income (loss) 2 5 3 9 Income tax provision (benefit) (4 ) (1 ) (4 ) (2 ) Balance at end of period $ (298 ) $ (268 ) $ (298 ) $ (268 ) Cash flow hedge instruments Balance at beginning of period $ 4 $ — $ — $ — Other comprehensive income (loss) before reclassifications (3 ) — 1 — Reclassification from other comprehensive income (loss) — — — — Other comprehensive income (loss) (3 ) — 1 — Income tax provision (benefit) — — — — Balance at end of period $ 1 $ — $ 1 $ — Other comprehensive income (loss) attributable to noncontrolling interests $ (1 ) $ (7 ) $ 5 $ 1

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment Information	The following table summarizes certain of the Company's segment information: Reportable Segments Clean Air Powertrain Ride Performance Motorparts Total Corporate Reclass & Elims Total For the Three Months Ended June 30, 2019 Revenues from external customers $ 1,827 $ 1,133 $ 709 $ 835 $ 4,504 $ — $ — $ 4,504 Intersegment revenues $ — $ 40 $ 38 $ 11 $ 89 $ — $ (89 ) $ — EBITDA, including noncontrolling interests $ 152 $ 100 $ 26 $ 110 $ 388 $ (78 ) $ — $ 310 For the Three Months Ended June 30, 2018 Revenues from external customers $ 1,694 $ — $ 506 $ 333 $ 2,533 $ — $ — $ 2,533 Intersegment revenues $ — $ — $ 5 $ — $ 5 $ — $ (5 ) $ — EBITDA, including noncontrolling interests $ 142 $ — $ 20 $ 55 $ 217 $ (46 ) $ — $ 171 Reportable Segments Clean Air Powertrain Ride Performance Motorparts Total Corporate Reclass & Elims Total For the Six Months Ended June 30, 2019 Revenues from external customers $ 3,606 $ 2,308 $ 1,442 $ 1,632 $ 8,988 $ — $ — $ 8,988 Intersegment revenues $ — $ 86 $ 84 $ 22 $ 192 $ — $ (192 ) $ — EBITDA, including noncontrolling interests $ 283 $ 213 $ (19 ) $ 155 $ 632 $ (177 ) $ — $ 455 For the Six Months Ended June 30, 2018 Revenues from external customers $ 3,450 $ — $ 1,019 $ 645 $ 5,114 $ — $ — $ 5,114 Intersegment revenues $ — $ — $ 11 $ — $ 11 $ — $ (11 ) $ — EBITDA, including noncontrolling interests $ 299 $ — $ 44 $ 100 $ 443 $ (90 ) $ — $ 353 Segment EBITDA including noncontrolling interests and the reconciliation to earnings before interest expense, income taxes, and noncontrolling interests are as follow: Three Months Ended June 30 Six Months Ended June 30 2019 2018 2019 2018 EBITDA including noncontrolling interests by Segments: Clean Air $ 152 142 $ 283 $ 299 Powertrain 100 — 213 — Ride Performance 26 20 (19 ) 44 Motorparts 110 55 155 100 Corporate (78 ) (46 ) (177 ) (90 ) Total EBITDA including noncontrolling interests 310 171 455 353 Depreciation and amortization (169 ) (60 ) (338 ) (120 ) Earnings (loss) before interest expense, income taxes, and noncontrolling interests 141 111 117 233 Interest expense (82 ) (22 ) (163 ) (45 ) Income tax (expense) benefit (14 ) (26 ) (14 ) (51 ) Net income (loss) $ 45 $ 63 $ (60 ) $ 137
Disaggregation of Revenue	Revenue from contracts with customers is disaggregated by customer type and geography, as it depicts the nature and amount of the Company’s revenue that is aligned with the Company's key growth strategies. In the following tables, revenue is disaggregated accordingly: Reportable Segments By Customer Type Clean Air Powertrain Ride Performance Motorparts Total Three Months Ended June 30, 2019 OE - Substrate $ 777 $ — $ — $ — $ 777 OE - Value add 1,050 1,133 709 — 2,892 Aftermarket — — — 835 835 Total $ 1,827 $ 1,133 $ 709 $ 835 $ 4,504 Three Months Ended June 30, 2018 OE - Substrate $ 621 $ — $ — $ — $ 621 OE - Value add 1,073 — 506 — 1,579 Aftermarket — — — 333 333 Total $ 1,694 $ — $ 506 $ 333 $ 2,533 Reportable Segments By Customer Type Clean Air Powertrain Ride Performance Motorparts Total Six Months Ended June 30, 2019 OE - Substrate $ 1,483 $ — $ — $ — $ 1,483 OE - Value add 2,123 2,308 1,442 — 5,873 Aftermarket — — — 1,632 1,632 Total $ 3,606 $ 2,308 $ 1,442 $ 1,632 $ 8,988 Six Months Ended June 30, 2018 OE - Substrate $ 1,273 $ — $ — $ — $ 1,273 OE - Value add 2,177 — 1,019 — 3,196 Aftermarket — — — 645 645 Total $ 3,450 $ — $ 1,019 $ 645 $ 5,114 Reportable Segments By Geography Clean Air Powertrain Ride Performance Motorparts Total Three Months Ended June 30, 2019 North America $ 800 $ 398 $ 228 $ 536 $ 1,962 Europe, Middle East and Africa 609 540 349 241 1,739 Rest of world 418 195 132 58 803 Total $ 1,827 $ 1,133 $ 709 $ 835 $ 4,504 Three Months Ended June 30, 2018 North America $ 745 $ — $ 185 $ 210 $ 1,140 Europe, Middle East and Africa 623 — 212 105 940 Rest of world 326 — 109 18 453 Total $ 1,694 $ — $ 506 $ 333 $ 2,533 Reportable Segments By Geography Clean Air Powertrain Ride Performance Motorparts Total Six Months Ended June 30, 2019 North America $ 1,593 $ 803 $ 460 $ 1,043 $ 3,899 Europe, Middle East and Africa 1,250 1,115 727 478 3,570 Rest of world 763 390 255 111 1,519 Total $ 3,606 $ 2,308 $ 1,442 $ 1,632 $ 8,988 Six Months Ended June 30, 2018 North America $ 1,513 $ — $ 365 $ 398 $ 2,276 Europe, Middle East and Africa 1,280 — 437 213 1,930 Rest of world 657 — 217 34 908 Total $ 3,450 $ — $ 1,019 $ 645 $ 5,114

Related Party Transactions (Tab

Related Party Transactions (Tables)	6 Months Ended
	Jun. 30, 2019
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	The following tables are summaries of the net sales, purchases, and royalty and other income from related parties for the three and six months ended June 30, 2019 : Three Months Ended June 30, 2019 Net Sales Purchases Royalty and Other Income Icahn Automotive Group LLC $ 47 $ — $ 1 PSC Metals, Inc. $ — $ — $ — Anqing TP Goetze Piston Ring Company Limited $ — $ 15 $ 1 Anqing TP Powder Metallurgy Company Limited $ 1 $ 2 $ — Dongsuh Federal-Mogul Industrial Co., Ltd. $ 2 $ 5 $ — Federal-Mogul Powertrain Otomotiv A.S. $ 15 $ 49 $ 1 Federal-Mogul TP Liner Europe Otomotiv Ltd. Sti. $ — $ 2 $ — Federal-Mogul Izmit Piston ve Pim Uretim Tesisleri A.S. $ 1 $ 4 $ — Federal-Mogul TP Liners, Inc. $ 4 $ — $ 1 Frenos Hidraulicos Auto $ 1 $ — $ — Montagewerk Abgastechnik Emden GmbH $ — $ — $ — Six Months Ended June 30, 2019 Net Sales Purchases Royalty and Other Income Icahn Automotive Group LLC $ 90 $ — $ 2 PSC Metals, Inc. $ 1 $ — $ — Anqing TP Goetze Piston Ring Company Limited $ — $ 29 $ — Anqing TP Powder Metallurgy Company Limited $ 1 $ 3 $ — Dongsuh Federal-Mogul Industrial Co., Ltd. $ 3 $ 7 $ — Federal-Mogul Powertrain Otomotiv A.S. $ 42 $ 104 $ 2 Federal-Mogul TP Liner Europe Otomotiv Ltd. Sti. $ — $ 5 $ — Federal-Mogul Izmit Piston ve Pim Uretim Tesisleri A.S. $ 2 $ 8 $ — Federal-Mogul TP Liners, Inc. $ 8 $ — $ 1 Frenos Hidraulicos Auto $ 1 $ — $ — Montagewerk Abgastechnik Emden GmbH $ 2 $ — $ — The following table is a summary of amounts due to and from the Company's related parties as of June 30, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 Receivables Payables and accruals Receivables Payables and accruals Icahn Automotive Group LLC $ 54 $ 2 $ 60 $ 12 Anqing TP Goetze Piston Ring Company Limited $ 2 $ 22 $ 1 $ 22 Anqing TP Powder Metallurgy Company Limited $ — $ 1 $ 1 $ 1 Dongsuh Federal-Mogul Industrial Co., Ltd. $ — $ 2 $ 1 $ 2 Federal-Mogul Powertrain Otomotiv A.S. $ 12 $ 27 $ 9 $ 16 Federal-Mogul TP Liner Europe Otomotiv Ltd. Sti. $ — $ 1 $ — $ 1 Federal-Mogul Izmit Piston ve Pim Uretim Tesisleri A.S. $ — $ 3 $ — $ — Federal-Mogul TP Liners, Inc. $ 2 $ 7 $ 2 $ 7 Farloc Argentina SAIC $ 1 $ 1 $ — $ — Montagewerk Abgastechnik Emden GmbH $ — $ — $ — $ —

Supplemental Guarantor Conden_2

Supplemental Guarantor Condensed Consolidating Financial Statements (Tables)	6 Months Ended
	Jun. 30, 2019
Condensed Financial Information Disclosure [Abstract]
Statement of Comprehensive Income (Loss)	STATEMENT OF COMPREHENSIVE INCOME (LOSS) Three Months Ended June 30, 2019 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Revenues Net sales and operating revenues: External $ 1,690 $ 2,814 $ — $ — $ 4,504 Affiliated companies 235 283 — (518 ) — 1,925 3,097 — (518 ) 4,504 Costs and expenses Cost of sales 1,618 2,692 1 (518 ) 3,793 Restructuring charges and asset impairments 43 18 — — 61 Engineering, research, and development 30 48 — — 78 Selling, general, and administrative 148 143 (3 ) — 288 Depreciation and amortization 81 88 — — 169 1,920 2,989 (2 ) (518 ) 4,389 Other expense (income) Non-service postretirement benefit costs (1 ) 5 — — 4 Equity in (income) losses of nonconsolidated affiliates, net of tax (1 ) (16 ) — — (17 ) Other (income) expense, net 30 (43 ) — — (13 ) 28 (54 ) — — (26 ) Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies (23 ) 162 2 — 141 Interest expense: External, net of interest capitalized (6 ) 12 76 — 82 Affiliated companies, net of interest income (6 ) 11 (5 ) — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies (11 ) 139 (69 ) — 59 Income tax expense (benefit) — 27 (13 ) — 14 Equity in net income (loss) from affiliated companies 93 — 82 (175 ) — Net income (loss) 82 112 26 (175 ) 45 Less: Net income (loss) attributable to noncontrolling interests — 19 — — 19 Net income (loss) attributable to Tenneco Inc. $ 82 $ 93 $ 26 $ (175 ) $ 26 Comprehensive income (loss) attributable to Tenneco Inc. $ 51 $ 67 $ (86 ) $ (28 ) $ 4 STATEMENT OF COMPREHENSIVE INCOME (LOSS) Three Months Ended June 30, 2018 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Revenues Net sales and operating revenues: External $ 1,028 $ 1,505 $ — $ — $ 2,533 Affiliated companies 134 156 — (290 ) — 1,162 1,661 — (290 ) 2,533 Costs and expenses Cost of sales 984 1,440 — (290 ) 2,134 Restructuring charges and asset impairments 2 27 — — 29 Engineering, research, and development 19 20 — — 39 Selling, general, and administrative 82 72 — — 154 Depreciation and amortization 24 36 — — 60 1,111 1,595 — (290 ) 2,416 Other expense (income) Non-service postretirement benefit costs 3 — — — 3 Other (income) expense, net 15 (22 ) — 10 3 18 (22 ) — 10 6 Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies 33 88 — (10 ) 111 Interest expense: External, net of interest capitalized 10 3 9 — 22 Affiliated companies, net of interest income (4 ) — 4 — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies 27 85 (13 ) (10 ) 89 Income tax (benefit) expense (2 ) 28 — — 26 Equity in net income (loss) from affiliated companies 37 — 60 (97 ) — Net income (loss) 66 57 47 (107 ) 63 Less: Net income (loss) attributable to noncontrolling interests — 16 — — 16 Net income (loss) attributable to Tenneco Inc. $ 66 $ 41 $ 47 $ (107 ) $ 47 Comprehensive income (loss) attributable to Tenneco Inc. $ 66 $ 41 $ (41 ) $ (107 ) $ (41 ) Six Months Ended June 30, 2019 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Revenues Net sales and operating revenues: External $ 3,381 $ 5,607 $ — $ — $ 8,988 Affiliated companies 453 564 — (1,017 ) — 3,834 6,171 — (1,017 ) 8,988 Costs and expenses Cost of sales 3,294 5,380 — (1,017 ) 7,657 Restructuring charges and asset impairments 51 34 — — 85 Goodwill impairment charge 33 27 — — 60 Engineering, research, and development 69 101 — — 170 Selling, general, and administrative 326 278 — — 604 Depreciation and amortization 164 174 — — 338 3,937 5,994 — (1,017 ) 8,914 Other expense (income) Non-service postretirement benefit costs (1 ) 7 — — 6 Equity in losses of nonconsolidated affiliates, net of tax (2 ) (31 ) — — (33 ) Other (income) expense, net 23 (39 ) — — (16 ) 20 (63 ) — — (43 ) Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies (123 ) 240 — — 117 Interest expense: External, net of interest capitalized 5 17 141 — 163 Affiliated companies, net of interest income (14 ) 19 (5 ) — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies (114 ) 204 (136 ) — (46 ) Income tax expense (benefit) (18 ) 57 (25 ) — 14 Equity in net income (loss) from affiliated companies 72 — 20 (92 ) — Net income (loss) (24 ) 147 (91 ) (92 ) (60 ) Less: Net income (loss) attributable to noncontrolling interests — 31 — — 31 Net income (loss) attributable to Tenneco Inc. $ (24 ) $ 116 $ (91 ) $ (92 ) $ (91 ) Comprehensive income (loss) attributable to Tenneco Inc. $ (17 ) $ 128 $ (79 ) $ (111 ) $ (79 ) Six Months Ended June 30, 2018 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Revenues Net sales and operating revenues: External $ 2,060 $ 3,054 $ — $ — $ 5,114 Affiliated companies 257 312 — (569 ) — 2,317 3,366 — (569 ) 5,114 Costs and expenses Cost of sales 1,991 2,905 — (569 ) 4,327 Restructuring charges and asset impairments 3 38 — — 41 Engineering, research, and development 37 42 — — 79 Selling, general, and administrative 155 150 — — 305 Depreciation and amortization 47 73 — — 120 2,233 3,208 — (569 ) 4,872 Other expense (income) Non-service postretirement benefit costs 6 — — — 6 Other (income) expense, net 24 (31 ) — 10 3 30 (31 ) — 10 9 Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies 54 189 — (10 ) 233 Interest expense: External, net of interest capitalized 20 6 19 — 45 Affiliated companies, net of interest income (7 ) — 7 — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income (loss) from affiliated companies 41 183 (26 ) (10 ) 188 Income tax (benefit) expense (1 ) 52 — — 51 Equity in net income (loss) from affiliated companies 85 — 133 (218 ) — Net income (loss) 127 131 107 (228 ) 137 Less: Net income (loss) attributable to noncontrolling interests — 30 — — 30 Net income (loss) attributable to Tenneco Inc. $ 127 $ 101 $ 107 $ (228 ) $ 107 Comprehensive income (loss) attributable to Tenneco Inc. $ 127 $ 101 $ 41 $ (228 ) $ 41
Balance Sheet	BALANCE SHEETS June 30, 2019 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated ASSETS Current assets: Cash and cash equivalents $ 216 $ 165 $ 3 $ — $ 384 Restricted cash — 6 — — 6 Receivables, net 965 1,882 — — 2,847 Inventories, net 927 1,280 — — 2,207 Prepayments and other current assets 193 329 28 — 550 Total current assets 2,301 3,662 31 — 5,994 Property, plant and equipment, net 1,142 2,418 9 — 3,569 Investment in affiliated companies 1,637 — 5,204 (6,841 ) — Long-term receivables, net 9 1 — — 10 Goodwill 470 329 — — 799 Intangibles, net 971 678 — — 1,649 Investments in nonconsolidated affiliates 42 489 — — 531 Deferred income taxes 256 212 12 — 480 Other assets 150 396 14 — 560 Total assets $ 6,978 $ 8,185 $ 5,270 $ (6,841 ) $ 13,592 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Short-term debt, including current maturities of long-term debt $ 1 $ 154 $ 15 $ — $ 170 Accounts payable 904 1,821 — — 2,725 Accrued compensation and employee benefits 87 304 — — 391 Accrued income taxes — — — — — Accrued expenses and other current liabilities 426 542 56 — 1,024 Total current liabilities 1,418 2,821 71 — 4,310 Long-term debt 250 11 5,247 — 5,508 Intercompany due to (due from) 1,905 (196 ) (1,709 ) — — Deferred income taxes — 110 — — 110 Pension, postretirement benefits and other liabilities 817 835 23 — 1,675 Commitments and contingencies Total liabilities 4,390 3,581 3,632 — 11,603 Redeemable noncontrolling interests — 145 — — 145 Tenneco Inc. shareholders’ equity 2,588 4,253 1,638 (6,841 ) 1,638 Noncontrolling interests — 206 — — 206 Total equity 2,588 4,459 1,638 (6,841 ) 1,844 Total liabilities, redeemable noncontrolling interests and equity $ 6,978 $ 8,185 $ 5,270 $ (6,841 ) $ 13,592 BALANCE SHEETS December 31, 2018 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated ASSETS Current assets: Cash and cash equivalents $ 329 $ 364 $ 4 $ — $ 697 Restricted cash — 5 — — 5 Receivables, net 943 1,629 — — 2,572 Inventories, net 958 1,287 — — 2,245 Prepayments and other current assets 254 311 25 — 590 Total current assets 2,484 3,596 29 — 6,109 Property, plant and equipment, net 1,131 2,361 9 — 3,501 Investment in affiliated companies 1,421 — 4,856 (6,277 ) — Long-term receivables, net 9 1 — — 10 Goodwill 263 383 223 — 869 Intangibles, net 1,007 510 2 — 1,519 Investments in nonconsolidated affiliates 43 501 — — 544 Deferred income taxes 255 200 12 — 467 Other assets 48 180 — (15 ) 213 Total assets $ 6,661 $ 7,732 $ 5,131 $ (6,292 ) $ 13,232 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Short-term debt, including current maturities of long-term debt $ 1 $ 152 $ — $ — $ 153 Accounts payable 858 1,894 7 — 2,759 Accrued compensation and employee benefits 88 255 — — 343 Accrued income taxes — 52 27 (15 ) 64 Accrued expenses and other current liabilities 436 488 77 — 1,001 Total current liabilities 1,383 2,841 — 111 (15 ) 4,320 Long-term debt 3 32 5,305 — 5,340 Intercompany due to (due from) 2,726 (215 ) (2,511 ) — — Deferred income taxes — 88 — — 88 Postretirement benefits and other liabilities 225 705 500 — 1,430 Commitments and contingencies Total liabilities 4,337 3,451 3,405 (15 ) 11,178 Redeemable noncontrolling interests — 138 — — 138 Tenneco Inc. shareholders’ equity 2,324 3,953 1,726 (6,277 ) 1,726 Noncontrolling interests — 190 — — 190 Total equity 2,324 4,143 1,726 (6,277 ) 1,916 Total liabilities, redeemable noncontrolling interests and equity $ 6,661 $ 7,732 $ 5,131 $ (6,292 ) $ 13,232
Statement of Cash Flows	STATEMENT OF CASH FLOWS Six Months Ended June 30, 2019 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Operating Activities Net cash provided by (used in) operating activities $ (8 ) $ (2 ) $ (90 ) $ — $ (100 ) Investing Activities Acquisition of business, net of cash acquired — (158 ) — — — (158 ) Proceeds from sale of assets 1 4 — — 5 Cash payments for property, plant and equipment (118 ) (261 ) — — (379 ) Net proceeds from sale of business 6 16 — — 22 Other 1 (2 ) — — (1 ) Proceeds from deferred purchase price of factored receivables — 147 — — 147 Net cash used in investing activities (110 ) (254 ) — — (364 ) Financing Activities Cash dividends — — (20 ) — (20 ) Repayment of term loans and notes — (139 ) (51 ) — (190 ) Proceeds from term loans and notes — 111 — — 111 Issuance (repurchase) of common shares — — (2 ) — (2 ) Decrease in bank overdrafts — (8 ) — — (8 ) Borrowings on revolving lines of credit 4,047 117 361 — 4,525 Payments on revolving lines of credit (3,797 ) (111 ) (346 ) — (4,254 ) Other — (1 ) — — (1 ) Intercompany dividends and net (decrease) increase in intercompany obligations (245 ) 98 147 — — Distribution to noncontrolling interests partners — (20 ) — — (20 ) Net cash (used in) provided by financing activities 5 47 89 — 141 Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash — 11 — — 11 Increase (decrease) in cash, cash equivalents and restricted cash (113 ) (198 ) (1 ) — (312 ) Cash, cash equivalents and restricted cash, January 1 329 369 4 — 702 Cash, cash equivalents and restricted cash, June 30 $ 216 $ 171 $ 3 $ — $ 390 STATEMENT OF CASH FLOWS Six Months Ended June 30, 2018 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated Operating Activities Net cash provided by (used in) operating activities $ 79 $ 13 $ (5 ) $ (9 ) $ 78 Investing Activities Proceeds from sale of assets 1 4 — — 5 Cash payments for property, plant and equipment (77 ) (97 ) — — (174 ) Proceeds from deferred purchase price of factored receivables — 66 — — 66 Other 2 — — — 2 Net cash used in investing activities (74 ) (27 ) — — (101 ) Financing Activities Proceeds from term loans and notes — 9 — — 9 Repayments of term loans and notes (10 ) (18 ) — — (28 ) Borrowings on revolving lines of credit 2,349 45 275 — 2,669 Payments on revolving lines of credit (2,315 ) (38 ) (261 ) — (2,614 ) Issuance (repurchase) of common shares — — (1 ) — (1 ) Cash dividends — — (25 ) — (25 ) Net increase (decrease) in bank overdrafts — (7 ) — — (7 ) Distribution to noncontrolling interests partners — (28 ) — — (28 ) Other (2 ) (20 ) — — (22 ) Intercompany dividends and net (decrease) increase in intercompany obligations (32 ) 6 17 9 — Net cash (used in) provided by financing activities (10 ) (51 ) 5 9 (47 ) Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash — (11 ) — — (11 ) Increase (decrease) in cash, cash equivalents and restricted cash (5 ) (76 ) — — (81 ) Cash, cash equivalents and restricted cash, January 1 7 311 — — 318 Cash, cash equivalents and restricted cash, June 30 $ 2 $ 235 $ — $ — $ 237

Description of Business - Addit

Description of Business - Additional Information (Details)	Jun. 30, 2019	Jan. 10, 2019	Oct. 01, 2018
Öhlins Intressenter AB
Business Acquisition [Line Items]
Percentage of business acquired	90.50%	90.50%
Federal-Mogul
Business Acquisition [Line Items]
Percentage of business acquired			100.00%

Summary of Accounting Policie_3

Summary of Accounting Policies - Redeemable Non Controlling Interest (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Redeemable Noncontrolling Interest [Roll Forward]
Balance at beginning of period	$ 138	$ 42
Net income (loss) attributable to redeemable noncontrolling interests	15	16
Other comprehensive income (loss)	1	(1)
Acquisition and other	16	0
Purchase accounting measurement period adjustment	(8)	0
Dividends declared	(17)	(19)
Balance at end of period	$ 145	$ 38

Summary of Accounting Policie_4

Summary of Accounting Policies - Additional Information (Details) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2019Segment	Mar. 31, 2018Segment	Jun. 30, 2019USD ($)Segment	Jun. 30, 2018USD ($)	Dec. 31, 2019Segment	Dec. 31, 2018Segment	Jan. 01, 2019USD ($)
Redeemable Noncontrolling Interest [Line Items]
Number of operating segments | Segment	2	3	4			3
Purchase accounting measurement period adjustment			$ 8	$ 0
ROU asset			344
Lease liability			338
Federal-Mogul
Redeemable Noncontrolling Interest [Line Items]
Purchase accounting measurement period adjustment			$ 8
ASU 2016-02
Redeemable Noncontrolling Interest [Line Items]
ROU asset							$ 387
Lease liability							383
Reduction in favorable leases							$ 4
Forecast
Redeemable Noncontrolling Interest [Line Items]
Number of operating segments | Segment					2

Summary of Accounting Policie_5

Summary of Accounting Policies - Earnings Per Share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted average shares of common stock outstanding (in shares)	80,920,825	51,258,668	80,897,731	51,232,639
Dilutive shares outstanding (in shares)	80,920,825	51,607,224	80,897,731	51,546,015
Anti-dilutive shares (in shares)	1,990,099	123,773	1,850,850	123,947
Restricted stock, PSUs and RSUs
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities (in shares)	0	298,826	0	251,971
Stock options
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities (in shares)	0	49,730	0	61,405

Summary of Accounting Policie_6

Summary of Accounting Policies - Error Correction, Income Statement (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales and operating revenues	$ 4,504	$ 2,533	$ 8,988	$ 5,114
Cost of sales (exclusive of depreciation and amortization)	3,793	2,134	7,657	4,327
Selling, general, and administrative	288	154	604	305
Depreciation and amortization	169	60	338	120
Engineering, research, and development	78	39	170	79
Restructuring charges and asset impairments	61	29	85	41
Costs and expenses	4,389	2,416	8,914	4,872
Loss on sale of receivables		0		0
Non-service pension and other postretirement benefit costs (credits)	4	3	6	6
Other expense (income), net	(13)	3	(16)	3
Total other expense (income)	(26)	6	(43)	9
Earnings (loss) before interest expense, income taxes, and noncontrolling interests	141	111	117	233
Interest expense	82	22	163	45
Earnings (loss) before income taxes and noncontrolling interests	59	89	(46)	188
Income tax expense (benefit)	14	26	14	51
Net income (loss)	45	63	(60)	137
Less: Net income (loss) attributable to noncontrolling interests	19	16	31	30
Net income (loss) attributable to Tenneco Inc.	$ 26	$ 47	$ (91)	$ 107
Basic earnings (loss) per share of common stock (in dollars per share)	$ 0.32	$ 0.92	$ (1.13)	$ 2.08
Diluted earnings (loss) per share of common stock (in dollars per share)	$ 0.32	$ 0.92	$ (1.13)	$ 2.07
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales and operating revenues		$ 2,537		$ 5,111
Cost of sales (exclusive of depreciation and amortization)		2,159		4,357
Selling, general, and administrative		156		309
Depreciation and amortization		59		118
Engineering, research, and development		42		83
Restructuring charges and asset impairments		0		0
Costs and expenses		2,416		4,867
Loss on sale of receivables		2		5
Non-service pension and other postretirement benefit costs (credits)		0		0
Other expense (income), net		6		9
Total other expense (income)		8		14
Earnings (loss) before interest expense, income taxes, and noncontrolling interests		113		230
Interest expense		20		40
Earnings (loss) before income taxes and noncontrolling interests		93		190
Income tax expense (benefit)		27		52
Net income (loss)		66		138
Less: Net income (loss) attributable to noncontrolling interests		16		30
Net income (loss) attributable to Tenneco Inc.		$ 50		$ 108
Basic earnings (loss) per share of common stock (in dollars per share)		$ 0.98		$ 2.12
Diluted earnings (loss) per share of common stock (in dollars per share)		$ 0.98		$ 2.10
Reclasses
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales and operating revenues		$ 0		$ 0
Cost of sales (exclusive of depreciation and amortization)		(23)		(32)
Selling, general, and administrative		(2)		(4)
Depreciation and amortization		0		0
Engineering, research, and development		(4)		(5)
Restructuring charges and asset impairments		29		41
Costs and expenses		0		0
Loss on sale of receivables		(2)		(5)
Non-service pension and other postretirement benefit costs (credits)		3		6
Other expense (income), net		(3)		(6)
Total other expense (income)		(2)		(5)
Earnings (loss) before interest expense, income taxes, and noncontrolling interests		2		5
Interest expense		2		5
Earnings (loss) before income taxes and noncontrolling interests		0		0
Income tax expense (benefit)		0		0
Net income (loss)		0		0
Less: Net income (loss) attributable to noncontrolling interests		0		0
Net income (loss) attributable to Tenneco Inc.		$ 0		$ 0
Basic earnings (loss) per share of common stock (in dollars per share)		$ 0		$ 0
Diluted earnings (loss) per share of common stock (in dollars per share)		$ 0		$ 0
As Reclassified
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales and operating revenues		$ 2,537		$ 5,111
Cost of sales (exclusive of depreciation and amortization)		2,136		4,325
Selling, general, and administrative		154		305
Depreciation and amortization		59		118
Engineering, research, and development		38		78
Restructuring charges and asset impairments		29		41
Costs and expenses		2,416		4,867
Loss on sale of receivables		0		0
Non-service pension and other postretirement benefit costs (credits)		3		6
Other expense (income), net		3		3
Total other expense (income)		6		9
Earnings (loss) before interest expense, income taxes, and noncontrolling interests		115		235
Interest expense		22		45
Earnings (loss) before income taxes and noncontrolling interests		93		190
Income tax expense (benefit)		27		52
Net income (loss)		66		138
Less: Net income (loss) attributable to noncontrolling interests		16		30
Net income (loss) attributable to Tenneco Inc.		$ 50		$ 108
Basic earnings (loss) per share of common stock (in dollars per share)		$ 0.98		$ 2.12
Diluted earnings (loss) per share of common stock (in dollars per share)		$ 0.98		$ 2.10
Revisions
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales and operating revenues		$ (4)		$ 3
Cost of sales (exclusive of depreciation and amortization)		(2)		2
Selling, general, and administrative		0		0
Depreciation and amortization		1		2
Engineering, research, and development		1		1
Restructuring charges and asset impairments		0		0
Costs and expenses		0		5
Loss on sale of receivables		0		0
Non-service pension and other postretirement benefit costs (credits)		0		0
Other expense (income), net		0		0
Total other expense (income)		0		0
Earnings (loss) before interest expense, income taxes, and noncontrolling interests		(4)		(2)
Interest expense		0		0
Earnings (loss) before income taxes and noncontrolling interests		(4)		(2)
Income tax expense (benefit)		(1)		(1)
Net income (loss)		(3)		(1)
Less: Net income (loss) attributable to noncontrolling interests		0		0
Net income (loss) attributable to Tenneco Inc.		$ (3)		$ (1)
Basic earnings (loss) per share of common stock (in dollars per share)		$ (0.06)		$ (0.04)
Diluted earnings (loss) per share of common stock (in dollars per share)		$ (0.06)		$ (0.03)

Summary of Accounting Policie_7

Summary of Accounting Policies - Error Correction, Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income	$ 45	$ 63	$ (60)	$ 137
Foreign currency translation adjustments	(18)	(99)	17	(72)
Defined benefit plans	(2)	4	(1)	7
Other comprehensive income (loss) — net of tax	(23)	(95)	17	(65)
Comprehensive income (loss)	22	(32)	(43)	72
Less: Comprehensive income (loss) attributable to noncontrolling interests	18	9	36	31
Comprehensive income (loss) attributable to common shareholders	$ 4	(41)	$ (79)	41
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		66		138
Foreign currency translation adjustments		(100)		(73)
Defined benefit plans		4		7
Other comprehensive income (loss) — net of tax		(96)		(66)
Comprehensive income (loss)		(30)		72
Less: Comprehensive income (loss) attributable to noncontrolling interests		9		31
Comprehensive income (loss) attributable to common shareholders		(39)		41
Reclasses
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		0		0
Foreign currency translation adjustments		0		0
Defined benefit plans		0		0
Other comprehensive income (loss) — net of tax		0		0
Comprehensive income (loss)		0		0
Less: Comprehensive income (loss) attributable to noncontrolling interests		0		0
Comprehensive income (loss) attributable to common shareholders		0		0
As Reclassified
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		66		138
Foreign currency translation adjustments		(100)		(73)
Defined benefit plans		4		7
Other comprehensive income (loss) — net of tax		(96)		(66)
Comprehensive income (loss)		(30)		72
Less: Comprehensive income (loss) attributable to noncontrolling interests		9		31
Comprehensive income (loss) attributable to common shareholders		(39)		41
Revisions
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		(3)		(1)
Foreign currency translation adjustments		1		1
Defined benefit plans		0		0
Other comprehensive income (loss) — net of tax		1		1
Comprehensive income (loss)		(2)		0
Less: Comprehensive income (loss) attributable to noncontrolling interests		0		0
Comprehensive income (loss) attributable to common shareholders		$ (2)		$ 0

Summary of Accounting Policie_8

Summary of Accounting Policies - Error Correction, Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating Activities
Net income (loss)	$ 45	$ 63	$ (60)	$ 137
Net cash provided by (used by) operating activities				78
Investing Activities
Net cash used by investing activities				(101)
Financing Activities
Proceeds from term loans and notes			111	9
Repayments of term loans and notes			(190)	(28)
Retirement of long-term debt				0
Borrowings on revolving lines of credit			4,525	2,669
Payments on revolving lines of credit			(4,254)	(2,614)
Net increase (decrease) in revolver borrowings				0
Issuance (repurchase) of common shares			(2)	(1)
Cash dividends			(20)	(25)
Debt issuance cost of long-term debt				0
Purchase of common stock under the share repurchase program				0
Net increase (decrease) in bank overdrafts			(8)	(7)
Net increase (decrease) in short-term borrowings secured by accounts receivable				0
Other			(1)	(22)
Distributions to noncontrolling interest partners			(20)	(28)
Net cash provided (used) by financing activities				(47)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash			11	(11)
Increase (decrease) in cash, cash equivalents and restricted cash			(312)	(81)
Cash, cash equivalents and restricted cash, beginning of period			702	318
Cash, cash equivalents and restricted cash, end of period	$ 390	237	$ 390	237
As Reported
Operating Activities
Net income (loss)		66		138
Net cash provided by (used by) operating activities				78
Investing Activities
Net cash used by investing activities				(101)
Financing Activities
Proceeds from term loans and notes				0
Repayments of term loans and notes				0
Retirement of long-term debt				(12)
Borrowings on revolving lines of credit				0
Payments on revolving lines of credit				0
Net increase (decrease) in revolver borrowings				48
Issuance (repurchase) of common shares				(1)
Cash dividends				(25)
Debt issuance cost of long-term debt				(2)
Purchase of common stock under the share repurchase program				0
Net increase (decrease) in bank overdrafts				(7)
Net increase (decrease) in short-term borrowings secured by accounts receivable				(20)
Other				0
Distributions to noncontrolling interest partners				(28)
Net cash provided (used) by financing activities				(47)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash				(11)
Increase (decrease) in cash, cash equivalents and restricted cash				(81)
Cash, cash equivalents and restricted cash, beginning of period				318
Cash, cash equivalents and restricted cash, end of period		237		237
Reclasses
Operating Activities
Net income (loss)		0		0
Net cash provided by (used by) operating activities				0
Investing Activities
Net cash used by investing activities				0
Financing Activities
Proceeds from term loans and notes				0
Repayments of term loans and notes				(12)
Retirement of long-term debt				12
Borrowings on revolving lines of credit				0
Payments on revolving lines of credit				0
Net increase (decrease) in revolver borrowings				0
Issuance (repurchase) of common shares				0
Cash dividends				0
Debt issuance cost of long-term debt				2
Purchase of common stock under the share repurchase program				0
Net increase (decrease) in bank overdrafts				0
Net increase (decrease) in short-term borrowings secured by accounts receivable				20
Other				(22)
Distributions to noncontrolling interest partners				0
Net cash provided (used) by financing activities				0
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash				0
Increase (decrease) in cash, cash equivalents and restricted cash				0
Cash, cash equivalents and restricted cash, beginning of period				0
Cash, cash equivalents and restricted cash, end of period		0		0
As Reclassified
Operating Activities
Net income (loss)		66		138
Net cash provided by (used by) operating activities				78
Investing Activities
Net cash used by investing activities				(101)
Financing Activities
Proceeds from term loans and notes				0
Repayments of term loans and notes				(12)
Retirement of long-term debt				0
Borrowings on revolving lines of credit				0
Payments on revolving lines of credit				0
Net increase (decrease) in revolver borrowings				48
Issuance (repurchase) of common shares				(1)
Cash dividends				(25)
Debt issuance cost of long-term debt				0
Purchase of common stock under the share repurchase program				0
Net increase (decrease) in bank overdrafts				(7)
Net increase (decrease) in short-term borrowings secured by accounts receivable				0
Other				(22)
Distributions to noncontrolling interest partners				(28)
Net cash provided (used) by financing activities				(47)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash				(11)
Increase (decrease) in cash, cash equivalents and restricted cash				(81)
Cash, cash equivalents and restricted cash, beginning of period				318
Cash, cash equivalents and restricted cash, end of period		237		237
Revisions
Operating Activities
Net income (loss)		(3)		(1)
Net cash provided by (used by) operating activities				0
Investing Activities
Net cash used by investing activities				0
Financing Activities
Proceeds from term loans and notes				9
Repayments of term loans and notes				(16)
Retirement of long-term debt				0
Borrowings on revolving lines of credit				2,669
Payments on revolving lines of credit				(2,614)
Net increase (decrease) in revolver borrowings				(48)
Issuance (repurchase) of common shares				0
Cash dividends				0
Debt issuance cost of long-term debt				0
Purchase of common stock under the share repurchase program				0
Net increase (decrease) in bank overdrafts				0
Net increase (decrease) in short-term borrowings secured by accounts receivable				0
Other				0
Distributions to noncontrolling interest partners				0
Net cash provided (used) by financing activities				0
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash				0
Increase (decrease) in cash, cash equivalents and restricted cash				0
Cash, cash equivalents and restricted cash, beginning of period				0
Cash, cash equivalents and restricted cash, end of period		$ 0		$ 0

Summary of Accounting Policie_9

Summary of Accounting Policies - Error Correction, Equity Statement (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Jan. 01, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		$ 1,916			$ 1,916
Net income (loss) attributable to Tenneco Inc.	$ 26		$ 47		(91)	$ 107
Foreign currency translation adjustments	(18)		(99)		17	(72)
Defined benefit plans	(2)		4		(1)	7
Other comprehensive income (loss), net of tax	(23)		(95)		17	(65)
Balance at end of period	1,844				1,844
As Reported
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Tenneco Inc.			50			108
Foreign currency translation adjustments			(100)			(73)
Defined benefit plans			4			7
Other comprehensive income (loss), net of tax			(96)			(66)
Revisions
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Tenneco Inc.			(3)			(1)
Foreign currency translation adjustments			1			1
Defined benefit plans			0			0
Other comprehensive income (loss), net of tax			1			1
Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	(1,150)	(1,013)	(963)	$ (1,009)	(1,013)	(1,009)
Net income (loss) attributable to Tenneco Inc.	26	(117)	47	60		107
Dividends			(12)			(25)
Adjustments to adopt new accounting standards							$ (1)
Balance at end of period	(1,124)	(1,150)	(928)	(963)	(1,124)	(928)
Accumulated Deficit | As Reported
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period			(902)	(946)		(946)
Net income (loss) attributable to Tenneco Inc.			50			108
Dividends			(12)			(25)
Adjustments to adopt new accounting standards							(1)
Balance at end of period			(864)	(902)		(864)
Accumulated Deficit | Revisions
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period			(61)	(63)		(63)
Net income (loss) attributable to Tenneco Inc.			(3)			(1)
Balance at end of period			(64)	(61)		(64)
Accumulated Other Comprehensive Income (loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	(658)	(692)	(516)	(538)	(692)	(538)
Foreign currency translation adjustments	(17)	29	(92)	19		(73)
Defined benefit plans	(2)	1	4	3		7
Balance at end of period	(680)	(658)	(604)	(516)	(680)	(604)
Accumulated Other Comprehensive Income (loss) | As Reported
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period			(519)	(541)		(541)
Foreign currency translation adjustments			(93)			(74)
Defined benefit plans			4			7
Balance at end of period			(608)	(519)		(608)
Accumulated Other Comprehensive Income (loss) | Revisions
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period			3	3		3
Foreign currency translation adjustments			1			1
Balance at end of period			4	3		4
Total Tenneco Inc. Shareholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	1,628	1,726	707	636	1,726	636
Net income (loss) attributable to Tenneco Inc.	26	(117)	47	60		107
Foreign currency translation adjustments	(17)	29	(92)	19		(73)
Defined benefit plans	(2)	1	4	3		7
Other comprehensive income (loss), net of tax			(41)			41
Common stock issued			3			6
Dividends			(12)			(25)
Adjustments to adopt new accounting standards							(1)
Balance at end of period	1,638	1,628	657	707	1,638	657
Total Tenneco Inc. Shareholders' Equity | As Reported
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period			765	696		696
Net income (loss) attributable to Tenneco Inc.			50			108
Foreign currency translation adjustments			(93)			(74)
Defined benefit plans			4			7
Other comprehensive income (loss), net of tax			(39)			41
Common stock issued			3			6
Dividends			(12)			(25)
Adjustments to adopt new accounting standards							(1)
Balance at end of period			717	765		717
Total Tenneco Inc. Shareholders' Equity | Revisions
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period			(58)	(60)		(60)
Net income (loss) attributable to Tenneco Inc.			(3)			(1)
Foreign currency translation adjustments			1			1
Other comprehensive income (loss), net of tax			(2)			0
Balance at end of period			(60)	(58)		(60)
Total Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	1,827	1,916	767	682	1,916	682
Net income (loss) attributable to Tenneco Inc.	35	(110)	54	67		121
Foreign currency translation adjustments	(17)	33	(97)	26		(71)
Defined benefit plans	(2)	1	4	3		7
Other comprehensive income (loss), net of tax			(39)			57
Common stock issued			3			6
Dividends			(30)			(43)
Adjustments to adopt new accounting standards							(1)
Balance at end of period	$ 1,844	$ 1,827	701	767	$ 1,844	701
Total Equity | As Reported
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period			825	742		742
Net income (loss) attributable to Tenneco Inc.			57			122
Foreign currency translation adjustments			(98)			(72)
Defined benefit plans			4			7
Other comprehensive income (loss), net of tax			(37)			57
Common stock issued			3			6
Dividends			(30)			(43)
Adjustments to adopt new accounting standards							$ (1)
Balance at end of period			761	825		761
Total Equity | Revisions
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period			(58)	(60)		(60)
Net income (loss) attributable to Tenneco Inc.			(3)			(1)
Foreign currency translation adjustments			1			1
Other comprehensive income (loss), net of tax			(2)			0
Balance at end of period			$ (60)	$ (58)		$ (60)

Acquisitions and Divestitures -

Acquisitions and Divestitures - Öhlins Intressenter AB (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 29, 2019	Jan. 10, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill	$ 799	$ 799			$ 869
Öhlins Intressenter AB
Business Acquisition [Line Items]
Percentage of business acquired	90.50%	90.50%		90.50%
Total consideration		$ 162
Redeemable noncontrolling interests	$ 17	17	$ 17
Goodwill	30	30	$ 28
Step up of inventory		5
Non-cash charge for inventory step-up	$ 3	$ 5
K Öhlin Holding AB | Öhlins Intressenter AB
Business Acquisition [Line Items]
Ownership percentage	9.50%	9.50%

Acquisitions and Divestitures_2

Acquisitions and Divestitures - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jun. 29, 2019	Dec. 31, 2018	Oct. 01, 2018
Business Acquisition [Line Items]
Goodwill	$ 799		$ 869
Öhlins Intressenter AB
Business Acquisition [Line Items]
Cash, cash equivalents and restricted cash	4	$ 4
Customer notes and accounts receivable	19	19
Inventories	31	31
Prepayments and other current assets	2	2
Property, plant and equipment	8	8
Goodwill	30	28
Intangibles	133	135
Other assets	9	9
Total assets acquired	236	236
Short-term debt, including current maturities of long-term debt	10	10
Accounts payable	11	11
Accrued compensation and employee benefits	12	12
Deferred income taxes	18	18
Deferred credits and other liabilities	6	6
Total liabilities assumed	57	57
Redeemable noncontrolling interests	17	17
Net assets and noncontrolling interests acquired	162	$ 162
Federal-Mogul
Business Acquisition [Line Items]
Cash, cash equivalents and restricted cash	277			$ 277
Customer notes and accounts receivable	1,258			1,258
Other receivables	62			62
Inventories	1,546			1,551
Prepayments and other current assets	199			198
Property, plant and equipment	1,683			1,711
Long-term receivables	48			48
Goodwill	785			825
Intangibles	1,601			1,530
Investments in nonconsolidated affiliates	513			528
Deferred income taxes	166			166
Other assets	49			55
Total assets acquired	8,187			8,209
Short-term debt, including current maturities of long-term debt	130			130
Accounts payable	957			957
Accrued compensation and employee benefits	231			231
Accrued income taxes	49			49
Accrued expenses and other current liabilities	514			522
Long-term debt	1,315			1,315
Deferred income taxes	56			56
Pension and postretirement benefits	879			879
Deferred credits and other liabilities	119			124
Total liabilities assumed	4,250			4,263
Redeemable noncontrolling interests	88			96
Noncontrolling interests	142			143
Net assets and noncontrolling interests acquired	3,707			$ 3,707
Adjustments | Öhlins Intressenter AB
Business Acquisition [Line Items]
Cash, cash equivalents and restricted cash	0
Customer notes and accounts receivable	0
Inventories	0
Prepayments and other current assets	0
Property, plant and equipment	0
Goodwill	2
Intangibles	(2)
Other assets	0
Total assets acquired	0
Short-term debt, including current maturities of long-term debt	0
Accounts payable	0
Accrued compensation and employee benefits	0
Deferred income taxes	0
Deferred credits and other liabilities	0
Total liabilities assumed	0
Redeemable noncontrolling interests	0
Net assets and noncontrolling interests acquired	0
Adjustments | Federal-Mogul
Business Acquisition [Line Items]
Cash, cash equivalents and restricted cash	0
Customer notes and accounts receivable	0
Other receivables	0
Inventories	(5)
Prepayments and other current assets	1
Property, plant and equipment	(28)
Long-term receivables	0
Goodwill	(40)
Intangibles	71
Investments in nonconsolidated affiliates	(15)
Deferred income taxes	0
Other assets	(6)
Total assets acquired	(22)
Short-term debt, including current maturities of long-term debt	0
Accounts payable	0
Accrued compensation and employee benefits	0
Accrued income taxes	0
Accrued expenses and other current liabilities	(8)
Long-term debt	0
Deferred income taxes	0
Pension and postretirement benefits	0
Deferred credits and other liabilities	(5)
Total liabilities assumed	(13)
Redeemable noncontrolling interests	(8)
Noncontrolling interests	(1)
Net assets and noncontrolling interests acquired	$ 0

Acquisitions and Divestitures_3

Acquisitions and Divestitures - Assets Acquired (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 29, 2019	Oct. 01, 2018
Öhlins Intressenter AB
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 78
Intangibles	133	$ 135
Öhlins Intressenter AB | Customer platforms and relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 37
Weighted-Average Useful Lives	10 years
Öhlins Intressenter AB | Technology rights
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 41
Weighted-Average Useful Lives	10 years
Federal-Mogul
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 1,234
Weighted-Average Useful Lives	10 years 6 months
Intangibles	$ 1,601		$ 1,530
Federal-Mogul | Customer platforms and relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 978
Weighted-Average Useful Lives	10 years
Federal-Mogul | Technology rights
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 68
Weighted-Average Useful Lives	10 years
Federal-Mogul | Packaged kits know-how
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 54
Weighted-Average Useful Lives	10 years
Federal-Mogul | Catalogs
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 40
Weighted-Average Useful Lives	10 years
Federal-Mogul | Licensing agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 64
Weighted-Average Useful Lives	4 years 6 months
Federal-Mogul | Land use rights
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 30
Weighted-Average Useful Lives	42 years 9 months 18 days
Trade names and trademarks | Öhlins Intressenter AB
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 55
Trade names and trademarks | Federal-Mogul
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 367

Acquisitions and Divestitures_4

Acquisitions and Divestitures - Acquisition of Federal-Mogul (Details) - USD ($) $ in Millions	Oct. 01, 2018	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Mar. 31, 2019
Business Acquisition [Line Items]
Goodwill		$ 1,221	$ 1,221	$ 1,231	$ 1,213
Federal-Mogul
Business Acquisition [Line Items]
Step up of inventory	$ 152
Non-cash charge for inventory step-up		3	44	105
Redeemable noncontrolling interests	$ 96	88	88
Revenue since acquisition			3,762
Net income since acquisition			17
Subsidiary Of Federal-Mogul
Business Acquisition [Line Items]
Redeemable noncontrolling interests		83	83
Powertrain
Business Acquisition [Line Items]
Goodwill		412	412	388	409
Powertrain | Federal-Mogul
Business Acquisition [Line Items]
Goodwill		412	412
Motorparts
Business Acquisition [Line Items]
Goodwill		547	547	611	544
Motorparts | Federal-Mogul
Business Acquisition [Line Items]
Goodwill		318	318
Ride Performance
Business Acquisition [Line Items]
Goodwill		240	240	$ 210	$ 238
Ride Performance | Federal-Mogul
Business Acquisition [Line Items]
Goodwill		$ 55	$ 55

Acquisitions and Divestitures_5

Acquisitions and Divestitures - Pro Forma (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Combinations [Abstract]
Net sales and operating revenues	$ 4,504	$ 4,618	$ 8,988	$ 9,298
Earnings (loss) before income taxes and noncontrolling interests	171	232	201	458
Net income (loss) attributable to Tenneco Inc.	$ 43	$ 78	$ (27)	$ 171
Basic earnings (loss) per share of common stock (in dollars per share)	$ 0.54	$ 0.97	$ (0.33)	$ 2.13
Diluted earnings (loss) per share of common stock (in dollars per share)	$ 0.54	$ 0.96	$ (0.33)	$ 2.12

Acquisitions and Divestitures_6

Acquisitions and Divestitures - Assets Held For Sale (Details) - USD ($) $ in Millions	Mar. 01, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of assets		$ 5	$ 5
Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Inventories		3		$ 33
Other current assets		0		5
Long-lived assets		1		23
Total assets held for sale		4		61
Accounts payable		2		21
Accrued liabilities		0		7
Other liabilities		1		11
Total liabilities held for sale		$ 3		$ 39
Motorsports Certain Assets and Liabilities | Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale price	$ 29
Proceeds from sale of assets	$ 22

Restructuring Charges and Ass_3

Restructuring Charges and Asset Impairments, Net - Incurred Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	$ 61	$ 29	$ 85	$ 41
Clean Air
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	15	17	20	18
Powertrain
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	17	0	18	0
Ride Performance
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	22	9	35	17
Motorparts
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	7	1	11	4
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges and asset impairments	$ 0	$ 2	$ 1	$ 2

Restructuring Charges and Ass_4

Restructuring Charges and Asset Impairments, Net - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Revisions to estimates	$ 2
Beijing, China
Restructuring Cost and Reserve [Line Items]
Restructuring costs		$ 7		$ 14
Facility Closure and Other Costs
Restructuring Cost and Reserve [Line Items]
Revisions to estimates	0
Clean Air
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges	1		$ 1
Motorparts
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges	1		1
Ride Performance | Facility Closure and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	17		28
Federal-Mogul
Restructuring Cost and Reserve [Line Items]
Restructuring costs	3		$ 9
Revisions to estimates	$ 2

Restructuring Charges and Ass_5

Restructuring Charges and Asset Impairments, Net - Roll Forward of Restructuring Reserve (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	$ 89	$ 103	$ 21	$ 25
Provisions	61	24	29	12
Revisions to estimates	(2)
Payments	(33)	(38)	(15)	(16)
Restructuring Reserve, ending balance	115	89	35	21
Employee Costs
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	84	98	16	19
Provisions	44	11	26	10
Revisions to estimates	(2)
Payments	(16)	(25)	(12)	(13)
Restructuring Reserve, ending balance	110	84	30	16
Facility Closure and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	5	5	5	6
Provisions	17	13	3	2
Revisions to estimates	0
Payments	(17)	(13)	(3)	(3)
Restructuring Reserve, ending balance	5	5	5	5
Total Reportable Segments
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	87	100	21	25
Provisions	61	23	27	12
Revisions to estimates	(2)
Payments	(32)	(36)	(15)	(16)
Restructuring Reserve, ending balance	114	87	33	21
Clean Air | Total Reportable Segments
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	16	17	10	14
Provisions	14	5	17	1
Revisions to estimates	0
Payments	(2)	(6)	(3)	(5)
Restructuring Reserve, ending balance	28	16	24	10
Powertrain | Total Reportable Segments
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	13	15	0	0
Provisions	17	1	0	0
Revisions to estimates	0
Payments	(4)	(3)	0	0
Restructuring Reserve, ending balance	26	13	0	0
Ride Performance | Total Reportable Segments
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	25	25	6	7
Provisions	22	13	9	8
Revisions to estimates	0
Payments	(19)	(13)	(10)	(9)
Restructuring Reserve, ending balance	28	25	5	6
Motorparts | Total Reportable Segments
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	33	43	5	4
Provisions	8	4	1	3
Revisions to estimates	(2)
Payments	(7)	(14)	(2)	(2)
Restructuring Reserve, ending balance	32	33	4	5
Corporate
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	2	3	0	0
Provisions	0	1	2	0
Revisions to estimates	0
Payments	(1)	(2)	0	0
Restructuring Reserve, ending balance	$ 1	$ 2	$ 2	$ 0

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Finished goods	$ 1,110	$ 1,116
Work in process	497	562
Raw materials	489	457
Materials and supplies	111	110
Total inventories	$ 2,207	$ 2,245

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets—Net - Goodwill (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Goodwill [Roll Forward]
Gross carrying amount at beginning of period	$ 1,213	$ 1,231		$ 1,231
Measurement period adjustments	8	(46)
Acquisitions		28
Foreign exchange	0
Gross carrying amount at end of period	1,221	1,213		1,221
Accumulated impairment loss at beginning of period	(422)	(362)		(362)
Impairment	0	(60)	$ 0	(60)	$ 0
Accumulated impairment loss at end of period	(422)	(422)		(422)
Net carrying value at end of period	799			799		$ 869
Clean Air
Goodwill [Roll Forward]
Gross carrying amount at beginning of period	22	22		22
Measurement period adjustments	0	0
Acquisitions		0
Foreign exchange	0
Gross carrying amount at end of period	22	22		22
Accumulated impairment loss at beginning of period	0	0		0
Impairment		0
Accumulated impairment loss at end of period	0	0		0
Net carrying value at end of period	22			22
Powertrain
Goodwill [Roll Forward]
Gross carrying amount at beginning of period	409	388		388
Measurement period adjustments	3	21
Acquisitions		0
Foreign exchange	0
Gross carrying amount at end of period	412	409		412
Accumulated impairment loss at beginning of period	0	0		0
Impairment		0
Accumulated impairment loss at end of period	0	0		0
Net carrying value at end of period	412			412
Ride Performance
Goodwill [Roll Forward]
Gross carrying amount at beginning of period	238	210		210
Measurement period adjustments	2	0
Acquisitions		28
Foreign exchange	0
Gross carrying amount at end of period	240	238		240
Accumulated impairment loss at beginning of period	(203)	(143)		(143)
Impairment		(60)		(60)
Accumulated impairment loss at end of period	(203)	(203)		(203)
Net carrying value at end of period	37			37
Motorparts
Goodwill [Roll Forward]
Gross carrying amount at beginning of period	544	611		611
Measurement period adjustments	3	(67)
Acquisitions		0
Foreign exchange	0
Gross carrying amount at end of period	547	544		547
Accumulated impairment loss at beginning of period	(219)	(219)		(219)
Impairment		0
Accumulated impairment loss at end of period	(219)	$ (219)		(219)
Net carrying value at end of period	$ 328			$ 328

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets—Net - Additional Information (Details) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)reporting_unit	Jun. 30, 2018USD ($)	Jun. 29, 2019USD ($)	Dec. 31, 2018USD ($)	Oct. 01, 2018USD ($)
Goodwill [Line Items]
Goodwill	$ 799			$ 799			$ 869
Goodwill impairment charge	0	$ 60	$ 0	$ 60	$ 0
Number of reporting units | reporting_unit				9
Intangibles, net	1,229			$ 1,229			$ 1,154
Ride Performance
Goodwill [Line Items]
Goodwill	37			37
Goodwill impairment charge		$ 60		$ 60
Number of reporting units | reporting_unit				2
Öhlins Intressenter AB
Goodwill [Line Items]
Goodwill	30			$ 30		$ 28
Intangibles	133			133		$ 135
Federal-Mogul
Goodwill [Line Items]
Goodwill	785			785				$ 825
Intangibles	1,601			1,601				$ 1,530
Intangibles, net	71			71
Adjustments | Öhlins Intressenter AB
Goodwill [Line Items]
Goodwill	2			2
Intangibles	(2)			(2)
Adjustments | Federal-Mogul
Goodwill [Line Items]
Goodwill	(40)			(40)
Intangibles	71			71
Three Reporting Units
Goodwill [Line Items]
Goodwill	$ 442			$ 442
Number of reporting units | reporting_unit				3

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets—Net - Intangible Assets (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 1,362	$ 1,217
Accumulated Amortization	(133)	(63)
Net Carrying Value	1,229	1,154
Indefinite-lived intangible assets	420	365
Intangible assets, gross	1,782	1,582
Intangible assets, net	$ 1,649	1,519
Customer platforms and relationships
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	10 years
Gross Carrying Value	$ 1,014	964
Accumulated Amortization	(75)	(24)
Net Carrying Value	$ 939	940
Customer contract
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	10 years
Gross Carrying Value	$ 8	8
Accumulated Amortization	(6)	(5)
Net Carrying Value	2	3
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	1	1
Accumulated Amortization	(1)	(1)
Net Carrying Value	$ 0	0
Patents | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	10 years
Patents | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	17 years
Technology rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 136	98
Accumulated Amortization	(31)	(27)
Net Carrying Value	$ 105	71
Technology rights | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	10 years
Technology rights | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	30 years
Packaged kits know-how
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	10 years
Gross Carrying Value	$ 54	36
Accumulated Amortization	(4)	(1)
Net Carrying Value	$ 50	35
Catalogs
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	10 years
Gross Carrying Value	$ 40	0
Accumulated Amortization	(3)	0
Net Carrying Value	37	0
Licensing agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	63	66
Accumulated Amortization	(11)	(3)
Net Carrying Value	$ 52	63
Licensing agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	3 years
Licensing agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	5 years
Land use rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 46	44
Accumulated Amortization	(2)	(2)
Net Carrying Value	$ 44	$ 42
Land use rights | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	28 years
Land use rights | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets	46 years
Federal-Mogul
Finite-Lived Intangible Assets [Line Items]
Net Carrying Value	$ 71

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets—Net - Amortization (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 33	$ 0	$ 68	$ 1
2019	70		70
2020	139		139
2021	138		138
2022	134		134
2023	130		130
2024 and thereafter	618		618
Net Carrying Value	$ 1,229		$ 1,229		$ 1,154

Investment in Nonconsolidated_3

Investment in Nonconsolidated Affiliates (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Oct. 01, 2018
Schedule of Equity Method Investments [Line Items]
Investments in nonconsolidated affiliates	$ 531		$ 531		$ 544
Equity earnings (losses) of nonconsolidated affiliates, net of tax	17	$ 0	33	$ 0
Cash dividends received from nonconsolidated affiliates	$ 12	$ 0	$ 27	$ 0
Anqing TP Goetze Piston Ring Company Limited (China)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	35.70%		35.70%		35.70%
Anqing TP Powder Metallurgy Co., Ltd (China)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	20.00%		20.00%		20.00%
Dongsuh Federal-Mogul Industrial Co. Ltd. (Korea)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	50.00%		50.00%		50.00%
Farloc Argentina SAIC Y F (Argentina)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	23.90%		23.90%		23.90%
Federal-Mogul Powertrain Otomotiv A.S. (Turkey)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	50.00%		50.00%		50.00%
Federal-Mogul TP Liner Europe Otomotiv Ltd. Sti. (Turkey)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	25.00%		25.00%		25.00%
Federal-Mogul TP Liners, Inc. (USA)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	46.00%		46.00%		46.00%
Frenos Hidraulicos Automotrices, S.A. de C.V. (Mexico)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	49.00%		49.00%		49.00%
JURID do Brasil Sistemas Automotivos Ltda.
Schedule of Equity Method Investments [Line Items]
Ownership percentage	19.90%		19.90%		19.90%
KB Autosys Co., Ltd. (Korea)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	33.60%		33.60%		33.60%
Montagewerk Abgastechnik Emden GmbH (Germany)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	50.00%		50.00%		50.00%
Federal-Mogul
Schedule of Equity Method Investments [Line Items]
Investments in nonconsolidated affiliates	$ (513)		$ (513)			$ (528)
Federal-Mogul | Adjustments
Schedule of Equity Method Investments [Line Items]
Investments in nonconsolidated affiliates	$ 15		$ 15

Investment in Nonconsolidated_4

Investment in Nonconsolidated Affiliates - Summarized Financial Data (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Schedule of Equity Method Investments [Line Items]
Sales	$ 244	$ 499
Gross profit	55	115
Income from continuing operations	37	80
Net income	41	79
Otomotiv A.S.
Schedule of Equity Method Investments [Line Items]
Sales	85	176
Gross profit	22	43
Income from continuing operations	17	36
Net income	21	39
Anqing TP Goetze
Schedule of Equity Method Investments [Line Items]
Sales	39	78
Gross profit	10	26
Income from continuing operations	9	20
Net income	9	18
Other
Schedule of Equity Method Investments [Line Items]
Sales	120	245
Gross profit	23	46
Income from continuing operations	11	24
Net income	$ 11	$ 22

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities - Additional Information (Details) shares in Thousands, € in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)shares	Jun. 30, 2019EUR (€)shares	Dec. 31, 2018USD ($)
Financial Instruments [Line Items]
Long-term debt	$ 5,508		$ 5,340
Net derivative losses to be reclassified within twelve months	1
Foreign Exchange Forward
Financial Instruments [Line Items]
Derivative asset	$ 1		1
Equity swap agreement
Financial Instruments [Line Items]
Notional amount | shares	250	250
Net asset position fair value	$ 3		4
Commodity contracts
Financial Instruments [Line Items]
Period of forecasted purchases	18 months
Notional amount	$ 25		$ 27
Term of derivative	1 year
Net Investment Hedging
Financial Instruments [Line Items]
Long-term debt | €		€ 774

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Carrying and Estimated Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Foreign Exchange Forward
Carrying And Estimated Fair Value [Line Items]
Derivative asset	$ 1	$ 1
Level 2 | Carrying Amount | Equity swap agreement
Carrying And Estimated Fair Value [Line Items]
Derivative asset	3	4
Level 2 | Carrying Amount | Commodity contracts
Carrying And Estimated Fair Value [Line Items]
Derivative asset	0
Derivative liability		(2)
Level 2 | Fair Value | Equity swap agreement
Carrying And Estimated Fair Value [Line Items]
Derivative asset	3	4
Level 2 | Fair Value | Commodity contracts
Carrying And Estimated Fair Value [Line Items]
Derivative asset	$ 0
Derivative liability		$ (2)

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities - Summarization for Foreign Currency Forward Purchase and Sale Contracts (Details) - Foreign Exchange Forward $ in Millions	Jun. 30, 2019USD ($)
Long
Notional amount	$ 26
Short
Notional amount	$ 26

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Fair Value of Long Term Debt (Details) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)reporting_unit	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of reporting units | reporting_unit				9
Goodwill impairment charge	$ 0	$ 60	$ 0	$ 60	$ 0
Carrying Amount	5,588			5,588		$ 5,413
Term loans and senior notes | Carrying Amount | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long term debt	5,247			5,247		5,307
Term loans and senior notes | Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long term debt	5,035			5,035		5,218
Other Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 91			$ 91		$ 106
Ride Performance
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of reporting units | reporting_unit				2
Goodwill impairment charge		$ 60		$ 60

Derivatives and Hedging Activ_5

Derivatives and Hedging Activities - Carrying and Estimated Fair Value (Details) € in Millions, $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2019EUR (€)	Dec. 31, 2018USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 5,508	$ 5,508		$ 5,340
Net Investment Hedging
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt | €			€ 774
Commodity contracts | Cash Flow Hedging
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amount of gain (loss) recognized in accumulated OCI or OCL (effective portion)	(3)	1
Foreign Currency | Net Investment Hedging
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amount of gain (loss) recognized in accumulated OCI or OCL (effective portion)	(12)	7
Accrued expenses and other current liabilities | Commodity contracts | Cash Flow Hedging | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset (liabilities)	0	0		2
Long-term debt | Foreign Currency | Net Investment Hedging | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 880	$ 880		$ 863

Debt and Other Financing Arra_3

Debt and Other Financing Arrangements - Summary of Long-Term Debt Obligations (Details)	Jun. 30, 2019USD ($)	Jun. 30, 2019EUR (€)	Dec. 31, 2018USD ($)
Debt Instrument [Line Items]
Carrying Amount	$ 5,588,000,000		$ 5,413,000,000
Less — maturities classified as current	80,000,000		73,000,000
Total long-term debt	5,508,000,000		5,340,000,000
Unamortized debt issuance costs	83,000,000		90,000,000
Unamortized premium	(43,000,000)		(49,000,000)
Line of Credit | Revolver Borrowings Due 2023
Debt Instrument [Line Items]
Principal	250,000,000		0
Carrying Amount	250,000,000		0
Term Loan | Tenneco Inc. Term Loan A
Debt Instrument [Line Items]
Principal	1,658,000,000		1,700,000,000
Carrying Amount	$ 1,649,000,000		1,691,000,000
Stated rate	1.75%	1.75%
Term Loan | Tenneco Inc. Term Loan B
Debt Instrument [Line Items]
Principal	$ 1,692,000,000		1,700,000,000
Carrying Amount	$ 1,626,000,000		$ 1,629,000,000
Stated rate	3.00%	3.00%	2.75%
Senior Notes | 5 3/8% Senior Notes due 2024
Debt Instrument [Line Items]
Principal	$ 225,000,000	€ 225,000,000	$ 225,000,000
Carrying Amount	$ 222,000,000		222,000,000
Stated rate	5.375%	5.375%
Senior Notes | 5.000% Senior Notes due 2026
Debt Instrument [Line Items]
Principal	$ 500,000,000	€ 500,000,000	500,000,000
Carrying Amount	$ 494,000,000		493,000,000
Stated rate	5.00%	5.00%
Senior Notes | 4.875% Euro Fixed Rate Notes due 2022
Debt Instrument [Line Items]
Principal	$ 472,000,000	€ 415,000,000	476,000,000
Carrying Amount	$ 489,000,000		496,000,000
Stated rate	4.875%	4.875%
Senior Notes | Euro Floating Rate Notes due 2024
Debt Instrument [Line Items]
Principal	$ 341,000,000	€ 300,000,000	344,000,000
Carrying Amount	$ 345,000,000		349,000,000
Stated rate	4.875%	4.875%
Senior Notes | 5.000% Euro Fixed Rate Notes due 2024
Debt Instrument [Line Items]
Principal	$ 398,000,000	€ 350,000,000	401,000,000
Carrying Amount	$ 422,000,000		427,000,000
Stated rate	5.00%	5.00%
Other Debt, primarily foreign instruments
Debt Instrument [Line Items]
Principal	$ 93,000,000		108,000,000
Carrying Amount	$ 91,000,000		$ 106,000,000

Debt and Other Financing Arra_4

Debt and Other Financing Arrangements - Term Loans (Details) $ in Billions	Oct. 01, 2018USD ($)
Line of Credit
Line of Credit Facility [Line Items]
Borrowing capacity	$ 4.9
Revolving Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Borrowing capacity	$ 1.5
Debt term	5 years
Term Loan A Facility | Term Loan
Line of Credit Facility [Line Items]
Borrowing capacity	$ 1.7
Debt term	5 years
Term Loan B Facility | Term Loan
Line of Credit Facility [Line Items]
Borrowing capacity	$ 1.7
Debt term	7 years

Debt and Other Financing Arra_5

Debt and Other Financing Arrangements - Senior Notes (Details) - Senior Notes	Jun. 30, 2019
5 3/8% Senior Notes due 2024
Debt Instrument [Line Items]
Stated rate	5.375%
5.000% Senior Notes due 2026
Debt Instrument [Line Items]
Stated rate	5.00%
5.000% Euro Fixed Rate Notes due 2024
Debt Instrument [Line Items]
Stated rate	5.00%
4.875% Euro Fixed Rate Notes due 2022
Debt Instrument [Line Items]
Stated rate	4.875%
4.875% Euro Fixed Rate Notes due 2024
Debt Instrument [Line Items]
Stated rate	4.875%

Debt and Other Financing Arra_6

Debt and Other Financing Arrangements - Financing Arrangements (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Debt Instrument [Line Items]
Available	$ 1,400
Letters of Credit	20
Tenneco Inc. revolving credit agreement
Debt Instrument [Line Items]
Available	1,200
Tenneco Inc. Term Loan A
Debt Instrument [Line Items]
Available	0
Tenneco Inc. Term Loan B
Debt Instrument [Line Items]
Available	0
Subsidiaries’ credit agreements
Debt Instrument [Line Items]
Available	$ 200

Debt and Other Financing Arra_7

Debt and Other Financing Arrangements - Interest Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Interest Expense
Debt Instrument [Line Items]
Amortization of debt issuance fees	$ 4	$ 1	$ 9	$ 2
Prepayments and other current assets
Debt Instrument [Line Items]
Amortization of debt issuance fees			20
Senior Notes
Debt Instrument [Line Items]
Accretion of debt premium	$ 3		$ 6

Debt and Other Financing Arra_8

Debt and Other Financing Arrangements - Senior Credit Facility (Details) - Line of Credit	Oct. 01, 2018	Jun. 30, 2019covenant
Debt Instrument [Line Items]
Number of covenants		2
Consolidated fixed charge coverage ratio		2
Debt Covenant, Term 1
Debt Instrument [Line Items]
Consolidated net leverage ratio	4
Debt Covenant, Term 2
Debt Instrument [Line Items]
Consolidated net leverage ratio	3.75
Debt Covenant, Term 3
Debt Instrument [Line Items]
Consolidated net leverage ratio	3.5
Debt Covenant, Term 4
Debt Instrument [Line Items]
Consolidated net leverage ratio	2.75

Debt and Other Financing Arra_9

Debt and Other Financing Arrangements - Accounts Receivable Securitization (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Debt Instrument [Line Items]
Accounts receivable outstanding and derecognized	$ 1,100		$ 1,100		$ 1,000
Deferred purchase price receivable	52		52		154
Proceeds from factoring qualifying as sales	1,300	$ 700	2,500	$ 1,500
Financing charges on sale of receivables		0		0
Accounts Receivable Securitization Programs [Member]
Debt Instrument [Line Items]
Borrowings on securitization programs	4		4		$ 6
Interest Expense
Debt Instrument [Line Items]
Financing charges on sale of receivables	$ 6	$ 2	$ 14	$ 5

Pension Plans, Postretirement_3

Pension Plans, Postretirement and Other Employee Benefits - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
US | Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 1	$ 0
Interest cost	14	2	27	5
Expected return on plan assets	(17)	(3)	(34)	(7)
Net amortization:
Actuarial loss	1	1	2	2
Prior service cost (credit)	0	0	0	0
Net pension and postretirement costs (credits)	(2)	0	(4)	0
US | Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	4	1	7	3
Expected return on plan assets	0	0	0	0
Net amortization:
Actuarial loss	1	3	2	4
Prior service cost (credit)	(2)	(1)	(4)	(1)
Net pension and postretirement costs (credits)	3	3	5	6
Non-U.S. | Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost	6	2	12	5
Interest cost	5	3	12	6
Expected return on plan assets	(4)	(5)	(9)	(10)
Net amortization:
Actuarial loss	2	2	3	4
Prior service cost (credit)	0	0	0	0
Net pension and postretirement costs (credits)	$ 9	$ 2	$ 18	$ 5

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Contingency [Line Items]
Income tax expense (benefit)	$ 14	$ 26	$ 14	$ 51
Earnings (loss) before income taxes and noncontrolling interests	59	89	(46)	188
Income tax benefit related to toll tax		(2)	2	(2)
Tax benefit relating to acquisition charges		$ 5		$ 7
Reasonably possible change in unrecognized tax benefits	$ 11		11
Spain, China, and Czech Republic
Income Tax Contingency [Line Items]
One time tax benefit			$ 45

Commitments and Contingencies -

Commitments and Contingencies - Environmental Matters (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Portion of environmental remediation costs recorded in other current liabilities	$ 8	$ 12
Portion of environmental remediation costs recorded in deferred credits and other liabilities	30	28
Environmental remediation accrual, discounted basis	$ 38	$ 40
Weighted average discount rate	1.40%	2.90%
Expected payments of environmental remediation costs, 2019	$ 7
Expected payments of environmental remediation costs, 2020	5
Expected payments of environmental remediation costs, 2021	3
Expected payments of environmental remediation costs, 2022	3
Expected payments of environmental remediation costs, 2023	2
Expected payments of environmental remediation costs, thereafter	$ 16

Commitments and Contingencies_2

Commitments and Contingencies - Asset Retirement Obligations (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Loss Contingencies [Line Items]
Asset retirement obligation	$ 15	$ 15
Accrued expenses and other current liabilities
Loss Contingencies [Line Items]
Asset retirement obligation	3	3
Deferred credits and other liabilities
Loss Contingencies [Line Items]
Asset retirement obligation	$ 12	$ 12

Commitments and Contingencies_3

Commitments and Contingencies - Other Legal Proceedings, Claims and Investigations (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)LegalMatterdefendent	Jun. 30, 2017USD ($)
Loss Contingencies [Line Items]
Estimated liability | $	$ 53	$ 132
Payments for settlement | $	$ 79
Number of defendants in many asbestos related cases | defendent	100
United States
Loss Contingencies [Line Items]
Current docket of active and inactive cases nationwide relating to alleged exposure to asbestos from our product categories | LegalMatter	500
Europe
Loss Contingencies [Line Items]
Current docket of active and inactive cases nationwide relating to alleged exposure to asbestos from our product categories | LegalMatter	50
Minimum
Loss Contingencies [Line Items]
Warranty term	1 year

Commitments and Contingencies_4

Commitments and Contingencies - Warranty Accrual Table (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Beginning balance	$ 48	$ 45	$ 29	$ 26
Accruals related to product warranties	16	5	2	6
Reductions for payments made	(11)	(2)	(2)	(3)
Foreign currency	0	0	0	0
Ending balance	$ 53	$ 48	$ 29	$ 29

Leases (Details)

Leases (Details)	6 Months Ended
	Jun. 30, 2019
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease terms	1 month
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms	10 years

Leases - Lease Costs (Details)

Leases - Lease Costs (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)
Leases [Abstract]
Operating lease expense	$ 30	$ 64
Short-term lease expense	2	4
Variable lease expense	12	20
Total lease expense	44	88
Operating cash flows from operating leases	$ 41	$ 82
Weighted average remaining lease term, operating lease	4 years 11 months 15 days	4 years 11 months 15 days
Weighted average remaining lease term, finance lease	3 years 18 days	3 years 18 days
Weighted average discount rate, operating lease	4.26%	4.26%
Weighted average discount rate, finance lease	5.08%	5.08%

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) $ in Millions	Jun. 30, 2019USD ($)
Leases [Abstract]
Operating lease right-of-use assets	$ 344
Other current liabilities	99
Other long-term liabilities	239
Total operating lease liabilities	338
Property, plant and equipment, gross	2
Accumulated depreciation	0
Total finance lease right-of-use assets	2
Other current liabilities	1
Other long-term liabilities	1
Total finance lease liabilities	$ 2

Leases - Maturity Schedules (De

Leases - Maturity Schedules (Details) $ in Millions	Jun. 30, 2019USD ($)
Operating leases
2019 (excluding the six months ended June 30, 2019)	$ 56
2020	97
2021	75
2022	53
2023	37
Thereafter	57
Total future undiscounted lease payments	375
Less imputed interest	(37)
Total reported lease liability	338
Finance leases
2019 (excluding the six months ended June 30, 2019)	1
2020	1
2021	0
2022	0
2023	0
Thereafter	0
Total future undiscounted lease payments	2
Less imputed interest	0
Total reported lease liability	$ 2

Leases - Future Minimum Payment

Leases - Future Minimum Payments (Details) $ in Millions	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 120
2020	100
2021	86
2022	68
2023	56
Beyond 2023	53
Total	$ 483

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Compensation expense	$ 7	$ 0	$ 13	$ 4
Unrecognized compensation costs	1		$ 1
Unrecognized compensation costs, not yet recognized			1 year
Cash-settled
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Compensation expense	1	(2)	$ 0	(3)
Vesting period			3 years
Share-settled
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Compensation expense	6	$ 2	$ 13	$ 7
Unrecognized compensation costs	$ 54		$ 54
Unrecognized compensation costs, not yet recognized			2 years

Share-Based Compensation - Nonv

Share-Based Compensation - Nonvested Restricted Shares (Details) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)$ / sharesshares
Weighted Avg. Grant Date Fair Value
Unrecognized compensation costs | $	$ 1
Unrecognized compensation costs, not yet recognized	1 year
Restricted Shares
Nonvested Restricted Shares
Nonvested, Beginning Balance (in shares) | shares	178,550
Granted (in shares) | shares	34,009
Vested (in shares) | shares	(172,050)
Forfeited (in shares) | shares	(3,329)
Nonvested, Ending Balance (in shares) | shares	37,180
Weighted Avg. Grant Date Fair Value
Nonvested, Beginning Balance (in dollars per share) | $ / shares	$ 55.46
Granted (in dollars per share) | $ / shares	34.66
Vested (in dollars per share) | $ / shares	50.12
Forfeited (in dollars per share) | $ / shares	62.12
Nonvested, Ending Balance (in dollars per share) | $ / shares	$ 63.30
Share-Settled RSUs
Nonvested Restricted Shares
Nonvested, Beginning Balance (in shares) | shares	440,403
Granted (in shares) | shares	867,137
Vested (in shares) | shares	(88,590)
Forfeited (in shares) | shares	(50,113)
Nonvested, Ending Balance (in shares) | shares	1,168,837
Weighted Avg. Grant Date Fair Value
Nonvested, Beginning Balance (in dollars per share) | $ / shares	$ 47.99
Granted (in dollars per share) | $ / shares	34.21
Vested (in dollars per share) | $ / shares	54.60
Forfeited (in dollars per share) | $ / shares	41.26
Nonvested, Ending Balance (in dollars per share) | $ / shares	$ 38.04
Unrecognized compensation costs | $	$ 54
Unrecognized compensation costs, not yet recognized	2 years
PSUs
Nonvested Restricted Shares
Nonvested, Beginning Balance (in shares) | shares	227,049
Granted (in shares) | shares	634,511
Vested (in shares) | shares	0
Forfeited (in shares) | shares	(43,527)
Nonvested, Ending Balance (in shares) | shares	818,033
Weighted Avg. Grant Date Fair Value
Nonvested, Beginning Balance (in dollars per share) | $ / shares	$ 49.18
Granted (in dollars per share) | $ / shares	24.77
Vested (in dollars per share) | $ / shares	0
Forfeited (in dollars per share) | $ / shares	43.61
Nonvested, Ending Balance (in dollars per share) | $ / shares	$ 34.25

Stockholders' Equity - Shares O

Stockholders' Equity - Shares Outstanding (Details) - $ / shares	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock (in shares)	14,592,888		14,592,888
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares issued (in shares)	0		0
Preferred stock, shares outstanding (in shares)	0		0
Class A
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	175,000,000	135,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued at beginning of period (in shares)	71,675,379	66,033,509
Issuance (repurchased) pursuant to benefit plans (in shares)	123,216	(15,906)
Restricted stock forfeited and withheld for taxes (in shares)	(60,081)	(7,590)
Stock options exercised (in shares)	8,438	(6,975)
Shares issued at end of period (in shares)	71,746,952	66,003,038
Treasury stock (in shares)	14,592,888	14,592,888
Total shares outstanding (in shares)	57,154,064	51,410,150
Class B
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	25,000,000
Common stock, par value (in dollars per share)	$ 0.01		$ 0.01
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued at beginning of period (in shares)	23,793,669
Issuance (repurchased) pursuant to benefit plans (in shares)	0
Restricted stock forfeited and withheld for taxes (in shares)	0
Stock options exercised (in shares)	0
Shares issued at end of period (in shares)	23,793,669
Treasury stock (in shares)	0
Total shares outstanding (in shares)	23,793,669

Stockholders' Equity - Accumula

Stockholders' Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period			$ 1,916
Balance at end of period	$ 1,844		1,844
Other comprehensive income (loss) attributable to noncontrolling interests	(1)	$ (7)	5	$ 1
Foreign currency translation adjustments and other
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(366)	(244)	(395)	(263)
Other comprehensive income (loss) before reclassifications adjustments	(16)	(94)	11	(75)
Other comprehensive income (loss) before reclassifications adjustments	0	0	0	0
Other comprehensive income (loss)	(16)	(94)	11	(75)
Income tax provision (benefit)	(1)	2	1	2
Balance at end of period	(383)	(336)	(383)	(336)
Pensions and other postretirement benefits
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(296)	(272)	(297)	(275)
Other comprehensive income (loss) before reclassifications adjustments	0	0	0	0
Other comprehensive income (loss) before reclassifications adjustments	2	5	3	9
Other comprehensive income (loss)	2	5	3	9
Income tax provision (benefit)	(4)	(1)	(4)	(2)
Balance at end of period	(298)	(268)	(298)	(268)
Cash flow hedge instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	4	0	0	0
Other comprehensive income (loss) before reclassifications adjustments	(3)	0	1	0
Other comprehensive income (loss) before reclassifications adjustments	0	0	0	0
Other comprehensive income (loss)	(3)	0	1	0
Income tax provision (benefit)	0	0	0	0
Balance at end of period	$ 1	$ 0	$ 1	$ 0

Segment Information - Additiona

Segment Information - Additional Information (Details) - Segment	3 Months Ended		6 Months Ended	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Number of operating segments	2	3	4		3
Forecast
Segment Reporting Information [Line Items]
Number of operating segments				2

Segment Information - Segment I

Segment Information - Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting [Line Items]
Revenues from external customers	$ 4,504	$ 2,533	$ 8,988	$ 5,114
Total EBITDA including noncontrolling interests	310	171	455	353
Depreciation and amortization	(169)	(60)	(338)	(120)
Earnings (loss) before interest expense, income taxes, and noncontrolling interests	141	111	117	233
Interest expense	(82)	(22)	(163)	(45)
Income tax (expense) benefit	(14)	(26)	(14)	(51)
Net income (loss)	45	63	(60)	137
Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	0	0	0	0
Operating Segments
Segment Reporting [Line Items]
Revenues from external customers	4,504	2,533	8,988	5,114
Total EBITDA including noncontrolling interests	388	217	632	443
Operating Segments | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	89	5	192	11
Reclass and Elims
Segment Reporting [Line Items]
Revenues from external customers	0	0	0	0
Total EBITDA including noncontrolling interests	0	0	0	0
Reclass and Elims | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	(89)	(5)	(192)	(11)
Clean Air
Segment Reporting [Line Items]
Revenues from external customers	1,827	1,694	3,606	3,450
Clean Air | Operating Segments
Segment Reporting [Line Items]
Revenues from external customers	1,827	1,694	3,606	3,450
Total EBITDA including noncontrolling interests	152	142	283	299
Clean Air | Operating Segments | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	0	0	0	0
Powertrain
Segment Reporting [Line Items]
Revenues from external customers	1,133	0	2,308	0
Powertrain | Operating Segments
Segment Reporting [Line Items]
Revenues from external customers	1,133	0	2,308	0
Total EBITDA including noncontrolling interests	100	0	213	0
Powertrain | Operating Segments | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	40	0	86	0
Ride Performance
Segment Reporting [Line Items]
Revenues from external customers	709	506	1,442	1,019
Ride Performance | Operating Segments
Segment Reporting [Line Items]
Revenues from external customers	709	506	1,442	1,019
Total EBITDA including noncontrolling interests	26	20	(19)	44
Ride Performance | Operating Segments | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	38	5	84	11
Motorparts
Segment Reporting [Line Items]
Revenues from external customers	835	333	1,632	645
Motorparts | Operating Segments
Segment Reporting [Line Items]
Revenues from external customers	835	333	1,632	645
Total EBITDA including noncontrolling interests	110	55	155	100
Motorparts | Operating Segments | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	11	0	22	0
Corporate
Segment Reporting [Line Items]
Revenues from external customers	0	0	0	0
Total EBITDA including noncontrolling interests	(78)	(46)	(177)	(90)
Corporate | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	$ 0	$ 0	$ 0	$ 0

Segment Information - Segment R

Segment Information - Segment Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	$ 4,504	$ 2,533	$ 8,988	$ 5,114
Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,827	1,694	3,606	3,450
Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,133	0	2,308	0
Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	709	506	1,442	1,019
Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	835	333	1,632	645
North America
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,962	1,140	3,899	2,276
North America | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	800	745	1,593	1,513
North America | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	398	0	803	0
North America | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	228	185	460	365
North America | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	536	210	1,043	398
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,739	940	3,570	1,930
Europe, Middle East and Africa | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	609	623	1,250	1,280
Europe, Middle East and Africa | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	540	0	1,115	0
Europe, Middle East and Africa | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	349	212	727	437
Europe, Middle East and Africa | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	241	105	478	213
Rest of world
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	803	453	1,519	908
Rest of world | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	418	326	763	657
Rest of world | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	195	0	390	0
Rest of world | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	132	109	255	217
Rest of world | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	58	18	111	34
OE - Substrate
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	777	621	1,483	1,273
OE - Substrate | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	777	621	1,483	1,273
OE - Substrate | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
OE - Substrate | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
OE - Substrate | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
OE - Value add
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	2,892	1,579	5,873	3,196
OE - Value add | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,050	1,073	2,123	2,177
OE - Value add | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	1,133	0	2,308	0
OE - Value add | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	709	506	1,442	1,019
OE - Value add | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
Aftermarket
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	835	333	1,632	645
Aftermarket | Clean Air
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
Aftermarket | Powertrain
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
Aftermarket | Ride Performance
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	0	0	0	0
Aftermarket | Motorparts
Disaggregation of Revenue [Line Items]
Net sales and operating revenues	$ 835	$ 333	$ 1,632	$ 645

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Related Party Transaction [Line Items]
Net Sales	$ 0	$ 0	$ 0	$ 0
Icahn Automotive Group LLC
Related Party Transaction [Line Items]
Net Sales	47		90
Purchases	0		0
Royalty and Other Income	1		2
Receivables	54		54		$ 60
Payables and accruals	2		2		12
PSC Metals, Inc.
Related Party Transaction [Line Items]
Net Sales	0		1
Purchases	0		0
Royalty and Other Income	0		0
Anqing TP Goetze Piston Ring Company Limited
Related Party Transaction [Line Items]
Net Sales	0		0
Purchases	15		29
Royalty and Other Income	1		0
Receivables	2		2		1
Payables and accruals	22		22		22
Anqing TP Powder Metallurgy Company Limited
Related Party Transaction [Line Items]
Net Sales	1		1
Purchases	2		3
Royalty and Other Income	0		0
Receivables	0		0		1
Payables and accruals	1		1		1
Dongsuh Federal-Mogul Industrial Co., Ltd.
Related Party Transaction [Line Items]
Net Sales	2		3
Purchases	5		7
Royalty and Other Income	0		0
Receivables	0		0		1
Payables and accruals	2		2		2
Federal-Mogul Powertrain Otomotiv A.S.
Related Party Transaction [Line Items]
Net Sales	15		42
Purchases	49		104
Royalty and Other Income	1		2
Receivables	12		12		9
Payables and accruals	27		27		16
Federal-Mogul TP Liner Europe Otomotiv Ltd. Sti.
Related Party Transaction [Line Items]
Net Sales	0		0
Purchases	2		5
Royalty and Other Income	0		0
Receivables	0		0		0
Payables and accruals	1		1		1
Federal-Mogul Izmit Piston ve Pim Uretim Tesisleri A.S.
Related Party Transaction [Line Items]
Net Sales	1		2
Purchases	4		8
Royalty and Other Income	0		0
Receivables	0		0		0
Payables and accruals	3		3		0
Federal-Mogul TP Liners, Inc.
Related Party Transaction [Line Items]
Net Sales	4		8
Purchases	0		0
Royalty and Other Income	1		1
Receivables	2		2		2
Payables and accruals	7		7		7
Frenos Hidraulicos Auto
Related Party Transaction [Line Items]
Net Sales	1		1
Purchases	0		0
Royalty and Other Income	0		0
Farloc Argentina SAIC
Related Party Transaction [Line Items]
Receivables	1		1		0
Payables and accruals	1		1		0
Montagewerk Abgastechnik Emden GmbH
Related Party Transaction [Line Items]
Net Sales	0		2
Purchases	0		0
Royalty and Other Income	0		0
Receivables	0		0		0
Payables and accruals	$ 0		$ 0		$ 0

Supplemental Guarantor Conden_3

Supplemental Guarantor Condensed Consolidating Financial Statements - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019
Condensed Financial Information Disclosure [Abstract]
Ownership percentage of existing and future material domestic owned subsidiaries	100.00%

Supplemental Guarantor Conden_4

Supplemental Guarantor Condensed Consolidating Financial Statements - Statement of Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues
External	$ 4,504		$ 2,533	$ 8,988	$ 5,114
Affiliated companies	0		0	0	0
Net sales and operating revenues	4,504		2,533	8,988	5,114
Costs and expenses
Cost of sales	3,793		2,134	7,657	4,327
Restructuring charges and asset impairments	61		29	85	41
Goodwill impairment charge	0	$ 60	0	60	0
Engineering, research, and development	78		39	170	79
Selling, general, and administrative	288		154	604	305
Depreciation and amortization	169		60	338	120
Costs and expenses	4,389		2,416	8,914	4,872
Other expense (income)
Non-service pension and other postretirement benefit costs (credits)	4		3	6	6
Equity in (earnings) losses of nonconsolidated affiliates, net of tax	(17)		0	(33)	0
Other expense (income), net	(13)		3	(16)	3
Total other expense (income)	(26)		6	(43)	9
Earnings (loss) before interest expense, income taxes, and noncontrolling interests	141		111	117	233
Interest expense —
External (net of interest capitalized)	82		22	163	45
Affiliated companies (net of interest income)	0		0	0	0
Earnings (loss) before income taxes and noncontrolling interests	59		89	(46)	188
Income tax (benefit) expense	14		26	14	51
Equity in net income (loss) from affiliated companies	0		0	0	0
Net income (loss)	45		63	(60)	137
Less: Net income (loss) attributable to noncontrolling interests	19		16	31	30
Net income attributable to Tenneco Inc.	26		47	(91)	107
Comprehensive income (loss) attributable to Tenneco Inc.	4		(41)	(79)	41
Reclass and Elims
Revenues
External	0		0	0	0
Affiliated companies	(518)		(290)	(1,017)	(569)
Net sales and operating revenues	(518)		(290)	(1,017)	(569)
Costs and expenses
Cost of sales	(518)		(290)	(1,017)	(569)
Restructuring charges and asset impairments	0		0	0	0
Goodwill impairment charge				0
Engineering, research, and development	0		0	0	0
Selling, general, and administrative	0		0	0	0
Depreciation and amortization	0		0	0	0
Costs and expenses	(518)		(290)	(1,017)	(569)
Other expense (income)
Non-service pension and other postretirement benefit costs (credits)	0		0	0	0
Equity in (earnings) losses of nonconsolidated affiliates, net of tax	0			0
Other expense (income), net	0		10	0	10
Total other expense (income)	0		10	0	10
Earnings (loss) before interest expense, income taxes, and noncontrolling interests	0		(10)	0	(10)
Interest expense —
External (net of interest capitalized)	0		0	0	0
Affiliated companies (net of interest income)	0		0	0	0
Earnings (loss) before income taxes and noncontrolling interests	0		(10)	0	(10)
Income tax (benefit) expense	0		0	0	0
Equity in net income (loss) from affiliated companies	(175)		(97)	(92)	(218)
Net income (loss)	(175)		(107)	(92)	(228)
Less: Net income (loss) attributable to noncontrolling interests	0		0	0	0
Net income attributable to Tenneco Inc.	(175)		(107)	(92)	(228)
Comprehensive income (loss) attributable to Tenneco Inc.	(28)		(107)	(111)	(228)
Guarantor Subsidiaries
Revenues
External	1,690		1,028	3,381	2,060
Affiliated companies	235		134	453	257
Net sales and operating revenues	1,925		1,162	3,834	2,317
Costs and expenses
Cost of sales	1,618		984	3,294	1,991
Restructuring charges and asset impairments	43		2	51	3
Goodwill impairment charge				33
Engineering, research, and development	30		19	69	37
Selling, general, and administrative	148		82	326	155
Depreciation and amortization	81		24	164	47
Costs and expenses	1,920		1,111	3,937	2,233
Other expense (income)
Non-service pension and other postretirement benefit costs (credits)	(1)		3	(1)	6
Equity in (earnings) losses of nonconsolidated affiliates, net of tax	(1)			(2)
Other expense (income), net	30		15	23	24
Total other expense (income)	28		18	20	30
Earnings (loss) before interest expense, income taxes, and noncontrolling interests	(23)		33	(123)	54
Interest expense —
External (net of interest capitalized)	(6)		10	5	20
Affiliated companies (net of interest income)	(6)		(4)	(14)	(7)
Earnings (loss) before income taxes and noncontrolling interests	(11)		27	(114)	41
Income tax (benefit) expense	0		(2)	(18)	(1)
Equity in net income (loss) from affiliated companies	93		37	72	85
Net income (loss)	82		66	(24)	127
Less: Net income (loss) attributable to noncontrolling interests	0		0	0	0
Net income attributable to Tenneco Inc.	82		66	(24)	127
Comprehensive income (loss) attributable to Tenneco Inc.	51		66	(17)	127
Non-Guarantor Subsidiaries
Revenues
External	2,814		1,505	5,607	3,054
Affiliated companies	283		156	564	312
Net sales and operating revenues	3,097		1,661	6,171	3,366
Costs and expenses
Cost of sales	2,692		1,440	5,380	2,905
Restructuring charges and asset impairments	18		27	34	38
Goodwill impairment charge				27
Engineering, research, and development	48		20	101	42
Selling, general, and administrative	143		72	278	150
Depreciation and amortization	88		36	174	73
Costs and expenses	2,989		1,595	5,994	3,208
Other expense (income)
Non-service pension and other postretirement benefit costs (credits)	5		0	7	0
Equity in (earnings) losses of nonconsolidated affiliates, net of tax	(16)			(31)
Other expense (income), net	(43)		(22)	(39)	(31)
Total other expense (income)	(54)		(22)	(63)	(31)
Earnings (loss) before interest expense, income taxes, and noncontrolling interests	162		88	240	189
Interest expense —
External (net of interest capitalized)	12		3	17	6
Affiliated companies (net of interest income)	11		0	19	0
Earnings (loss) before income taxes and noncontrolling interests	139		85	204	183
Income tax (benefit) expense	27		28	57	52
Equity in net income (loss) from affiliated companies	0		0	0	0
Net income (loss)	112		57	147	131
Less: Net income (loss) attributable to noncontrolling interests	19		16	31	30
Net income attributable to Tenneco Inc.	93		41	116	101
Comprehensive income (loss) attributable to Tenneco Inc.	67		41	128	101
Tenneco Inc
Revenues
External	0		0	0	0
Affiliated companies	0		0	0	0
Net sales and operating revenues	0		0	0	0
Costs and expenses
Cost of sales	1		0	0	0
Restructuring charges and asset impairments	0		0	0	0
Goodwill impairment charge				0
Engineering, research, and development	0		0	0	0
Selling, general, and administrative	(3)		0	0	0
Depreciation and amortization	0		0	0	0
Costs and expenses	(2)		0	0	0
Other expense (income)
Non-service pension and other postretirement benefit costs (credits)	0		0	0	0
Equity in (earnings) losses of nonconsolidated affiliates, net of tax	0			0
Other expense (income), net	0		0	0	0
Total other expense (income)	0		0	0	0
Earnings (loss) before interest expense, income taxes, and noncontrolling interests	2		0	0	0
Interest expense —
External (net of interest capitalized)	76		9	141	19
Affiliated companies (net of interest income)	(5)		4	(5)	7
Earnings (loss) before income taxes and noncontrolling interests	(69)		(13)	(136)	(26)
Income tax (benefit) expense	(13)		0	(25)	0
Equity in net income (loss) from affiliated companies	82		60	20	133
Net income (loss)	26		47	(91)	107
Less: Net income (loss) attributable to noncontrolling interests	0		0	0	0
Net income attributable to Tenneco Inc.	26		47	(91)	107
Comprehensive income (loss) attributable to Tenneco Inc.	$ (86)		$ (41)	$ (79)	$ 41

Supplemental Guarantor Conden_5

Supplemental Guarantor Condensed Consolidating Financial Statements - Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 384	$ 697
Restricted cash	6	5
Receivables, net	2,847	2,572
Inventories	2,207	2,245
Prepayments and other current assets	550	590
Total current assets	5,994	6,109
Plant, property and equipment, net	3,569	3,501
Investment in affiliated companies	0	0
Long-term receivables, net	10	10
Goodwill	799	869
Intangibles, net	1,649	1,519
Investments in nonconsolidated affiliates	531	544
Deferred income taxes	480	467
Other assets	560	213
Total assets	13,592	13,232
Current liabilities:
Short-term debt, including current maturities of long-term debt	170	153
Accounts payable	2,725	2,759
Accrued compensation and employee benefits	391	343
Accrued income taxes	0	64
Accrued expenses and other current liabilities	1,024	1,001
Total current liabilities	4,310	4,320
Long-term debt	5,508	5,340
Intercompany due to (due from)	0	0
Deferred income taxes	110	88
Postretirement benefits and other liabilities	1,675	1,430
Commitments and contingencies
Total liabilities	11,603	11,178
Redeemable noncontrolling interests	145	138	$ 38	$ 42
Tenneco Inc. shareholders’ equity	1,638	1,726
Noncontrolling interests	206	190
Total equity	1,844	1,916
Total liabilities, redeemable noncontrolling interests and equity	13,592	13,232
Reclass and Elims
Current assets:
Cash and cash equivalents	0	0
Restricted cash	0	0
Receivables, net	0	0
Inventories	0	0
Prepayments and other current assets	0	0
Total current assets	0	0
Plant, property and equipment, net	0	0
Investment in affiliated companies	(6,841)	(6,277)
Long-term receivables, net	0	0
Goodwill	0	0
Intangibles, net	0	0
Investments in nonconsolidated affiliates	0	0
Deferred income taxes	0	0
Other assets	0	(15)
Total assets	(6,841)	(6,292)
Current liabilities:
Short-term debt, including current maturities of long-term debt	0	0
Accounts payable	0	0
Accrued compensation and employee benefits	0	0
Accrued income taxes	0	(15)
Accrued expenses and other current liabilities	0	0
Total current liabilities	0	(15)
Long-term debt	0	0
Intercompany due to (due from)	0	0
Deferred income taxes	0	0
Postretirement benefits and other liabilities	0	0
Commitments and contingencies
Total liabilities	0	(15)
Redeemable noncontrolling interests	0	0
Tenneco Inc. shareholders’ equity	(6,841)	(6,277)
Noncontrolling interests	0	0
Total equity	(6,841)	(6,277)
Total liabilities, redeemable noncontrolling interests and equity	(6,841)	(6,292)
Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	216	329
Restricted cash	0	0
Receivables, net	965	943
Inventories	927	958
Prepayments and other current assets	193	254
Total current assets	2,301	2,484
Plant, property and equipment, net	1,142	1,131
Investment in affiliated companies	1,637	1,421
Long-term receivables, net	9	9
Goodwill	470	263
Intangibles, net	971	1,007
Investments in nonconsolidated affiliates	42	43
Deferred income taxes	256	255
Other assets	150	48
Total assets	6,978	6,661
Current liabilities:
Short-term debt, including current maturities of long-term debt	1	1
Accounts payable	904	858
Accrued compensation and employee benefits	87	88
Accrued income taxes	0	0
Accrued expenses and other current liabilities	426	436
Total current liabilities	1,418	1,383
Long-term debt	250	3
Intercompany due to (due from)	1,905	2,726
Deferred income taxes	0	0
Postretirement benefits and other liabilities	817	225
Commitments and contingencies
Total liabilities	4,390	4,337
Redeemable noncontrolling interests	0	0
Tenneco Inc. shareholders’ equity	2,588	2,324
Noncontrolling interests	0	0
Total equity	2,588	2,324
Total liabilities, redeemable noncontrolling interests and equity	6,978	6,661
Nonguarantor Subsidiaries
Current assets:
Cash and cash equivalents	165	364
Restricted cash	6	5
Receivables, net	1,882	1,629
Inventories	1,280	1,287
Prepayments and other current assets	329	311
Total current assets	3,662	3,596
Plant, property and equipment, net	2,418	2,361
Investment in affiliated companies	0	0
Long-term receivables, net	1	1
Goodwill	329	383
Intangibles, net	678	510
Investments in nonconsolidated affiliates	489	501
Deferred income taxes	212	200
Other assets	396	180
Total assets	8,185	7,732
Current liabilities:
Short-term debt, including current maturities of long-term debt	154	152
Accounts payable	1,821	1,894
Accrued compensation and employee benefits	304	255
Accrued income taxes	0	52
Accrued expenses and other current liabilities	542	488
Total current liabilities	2,821	2,841
Long-term debt	11	32
Intercompany due to (due from)	(196)	(215)
Deferred income taxes	110	88
Postretirement benefits and other liabilities	835	705
Commitments and contingencies
Total liabilities	3,581	3,451
Redeemable noncontrolling interests	145	138
Tenneco Inc. shareholders’ equity	4,253	3,953
Noncontrolling interests	206	190
Total equity	4,459	4,143
Total liabilities, redeemable noncontrolling interests and equity	8,185	7,732
Tenneco Inc
Current assets:
Cash and cash equivalents	3	4
Restricted cash	0	0
Receivables, net	0	0
Inventories	0	0
Prepayments and other current assets	28	25
Total current assets	31	29
Plant, property and equipment, net	9	9
Investment in affiliated companies	5,204	4,856
Long-term receivables, net	0	0
Goodwill	0	223
Intangibles, net	0	2
Investments in nonconsolidated affiliates	0	0
Deferred income taxes	12	12
Other assets	14	0
Total assets	5,270	5,131
Current liabilities:
Short-term debt, including current maturities of long-term debt	15	0
Accounts payable	0	7
Accrued compensation and employee benefits	0	0
Accrued income taxes	0	27
Accrued expenses and other current liabilities	56	77
Total current liabilities	71	111
Long-term debt	5,247	5,305
Intercompany due to (due from)	(1,709)	(2,511)
Deferred income taxes	0	0
Postretirement benefits and other liabilities	23	500
Commitments and contingencies
Total liabilities	3,632	3,405
Redeemable noncontrolling interests	0	0
Tenneco Inc. shareholders’ equity	1,638	1,726
Noncontrolling interests	0	0
Total equity	1,638	1,726
Total liabilities, redeemable noncontrolling interests and equity	$ 5,270	$ 5,131

Supplemental Guarantor Conden_6

Supplemental Guarantor Condensed Consolidating Financial Statements - Statement of Cash Flows (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating Activities
Net cash provided (used) by operating activities	$ (100)	$ 78
Investing Activities
Acquisition of business, net of cash acquired	(158)	0
Proceeds from sale of assets	5	5
Cash payments for property, plant, and equipment	(379)	(174)
Net proceeds from sale of business	22	0
Other	(1)	2
Proceeds from deferred purchase price of factored receivables	147	66
Net cash used by investing activities	(364)	(101)
Financing Activities
Cash dividends	(20)	(25)
Repayments of term loans and notes	(190)	(28)
Proceeds from term loans and notes	111	9
Issuance (repurchase) of common shares	(2)	(1)
Borrowings on revolving lines of credit	4,525	2,669
Payments on revolving lines of credit	(4,254)	(2,614)
Net increase (decrease) in bank overdrafts	(8)	(7)
Distributions to noncontrolling interest partners	(20)	(28)
Other	(1)	(22)
Intercompany dividend payments and net increase (decrease) in intercompany obligations	0	0
Net cash (used) provided by financing activities	141	(47)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	11	(11)
Increase (decrease) in cash, cash equivalents and restricted cash	(312)	(81)
Cash, cash equivalents and restricted cash, beginning of period	702	318
Cash, cash equivalents and restricted cash, end of period	390	237
Reclass and Elims
Operating Activities
Net cash provided (used) by operating activities	0	(9)
Investing Activities
Acquisition of business, net of cash acquired	0
Proceeds from sale of assets	0	0
Cash payments for property, plant, and equipment	0	0
Net proceeds from sale of business	0
Other	0	0
Proceeds from deferred purchase price of factored receivables	0	0
Net cash used by investing activities	0	0
Financing Activities
Cash dividends	0	0
Repayments of term loans and notes	0	0
Proceeds from term loans and notes	0	0
Issuance (repurchase) of common shares	0	0
Borrowings on revolving lines of credit	0	0
Payments on revolving lines of credit	0	0
Net increase (decrease) in bank overdrafts	0	0
Distributions to noncontrolling interest partners	0	0
Other	0	0
Intercompany dividend payments and net increase (decrease) in intercompany obligations	0	9
Net cash (used) provided by financing activities	0	9
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	0	0
Increase (decrease) in cash, cash equivalents and restricted cash	0	0
Cash, cash equivalents and restricted cash, beginning of period	0	0
Cash, cash equivalents and restricted cash, end of period	0	0
Guarantor Subsidiaries
Operating Activities
Net cash provided (used) by operating activities	(8)	79
Investing Activities
Acquisition of business, net of cash acquired	0
Proceeds from sale of assets	1	1
Cash payments for property, plant, and equipment	(118)	(77)
Net proceeds from sale of business	6
Other	1	2
Proceeds from deferred purchase price of factored receivables	0	0
Net cash used by investing activities	(110)	(74)
Financing Activities
Cash dividends	0	0
Repayments of term loans and notes	0	(10)
Proceeds from term loans and notes	0	0
Issuance (repurchase) of common shares	0	0
Borrowings on revolving lines of credit	4,047	2,349
Payments on revolving lines of credit	(3,797)	(2,315)
Net increase (decrease) in bank overdrafts	0	0
Distributions to noncontrolling interest partners	0	0
Other	0	(2)
Intercompany dividend payments and net increase (decrease) in intercompany obligations	(245)	(32)
Net cash (used) provided by financing activities	5	(10)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	0	0
Increase (decrease) in cash, cash equivalents and restricted cash	(113)	(5)
Cash, cash equivalents and restricted cash, beginning of period	329	7
Cash, cash equivalents and restricted cash, end of period	216	2
Non-Guarantor Subsidiaries
Operating Activities
Net cash provided (used) by operating activities	(2)	13
Investing Activities
Acquisition of business, net of cash acquired	(158)
Proceeds from sale of assets	4	4
Cash payments for property, plant, and equipment	(261)	(97)
Net proceeds from sale of business	16
Other	(2)	0
Proceeds from deferred purchase price of factored receivables	147	66
Net cash used by investing activities	(254)	(27)
Financing Activities
Cash dividends	0	0
Repayments of term loans and notes	(139)	(18)
Proceeds from term loans and notes	111	9
Issuance (repurchase) of common shares	0	0
Borrowings on revolving lines of credit	117	45
Payments on revolving lines of credit	(111)	(38)
Net increase (decrease) in bank overdrafts	(8)	(7)
Distributions to noncontrolling interest partners	(20)	(28)
Other	(1)	(20)
Intercompany dividend payments and net increase (decrease) in intercompany obligations	98	6
Net cash (used) provided by financing activities	47	(51)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	11	(11)
Increase (decrease) in cash, cash equivalents and restricted cash	(198)	(76)
Cash, cash equivalents and restricted cash, beginning of period	369	311
Cash, cash equivalents and restricted cash, end of period	171	235
Tenneco Inc
Operating Activities
Net cash provided (used) by operating activities	(90)	(5)
Investing Activities
Acquisition of business, net of cash acquired	0
Proceeds from sale of assets	0	0
Cash payments for property, plant, and equipment	0	0
Net proceeds from sale of business	0
Other	0	0
Proceeds from deferred purchase price of factored receivables	0	0
Net cash used by investing activities	0	0
Financing Activities
Cash dividends	(20)	(25)
Repayments of term loans and notes	(51)	0
Proceeds from term loans and notes	0	0
Issuance (repurchase) of common shares	(2)	(1)
Borrowings on revolving lines of credit	361	275
Payments on revolving lines of credit	(346)	(261)
Net increase (decrease) in bank overdrafts	0	0
Distributions to noncontrolling interest partners	0	0
Other	0	0
Intercompany dividend payments and net increase (decrease) in intercompany obligations	147	17
Net cash (used) provided by financing activities	89	5
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	0	0
Increase (decrease) in cash, cash equivalents and restricted cash	(1)	0
Cash, cash equivalents and restricted cash, beginning of period	4	0
Cash, cash equivalents and restricted cash, end of period	$ 3	$ 0