Tenneco (TEN) 10-K 24 Feb 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2016	Feb. 17, 2017	Jun. 30, 2016
Document Documentand Entity Information [Abstract]
Entity Registrant Name	TENNECO INC
Entity Central Index Key	1,024,725
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Trading Symbol	TEN
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		54,300,982
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 2.6

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues
Net sales and operating revenues	$ 2,155	$ 2,096	$ 2,212	$ 2,136	$ 2,031	$ 2,025	$ 2,130	$ 2,023	$ 8,599	$ 8,209	$ 8,420
Costs and expenses
Cost of sales (exclusive of depreciation and amortization shown below)	1,790	1,741	1,810	1,770	1,688	1,707	1,764	1,686	7,111	6,845	7,025
Engineering, research, and development									154	146	169
Selling, general, and administrative									589	491	519
Depreciation and amortization of other intangibles									212	203	208
Costs and expenses									8,066	7,685	7,921
Other income (expense)
Loss on sale of receivables									(5)	(4)	(4)
Other expense									0	(1)	(3)
Total other income (expense)									(5)	(5)	(7)
Earnings before interest expense, income taxes, and noncontrolling interests	75	152	177	124	128	116	155	120	528	519	492
Interest expense									92	67	91
Earnings before income taxes and noncontrolling interests									436	452	401
Income tax expense									3	149	131
Net income									433	303	270
Less: Net income attributable to noncontrolling interests									70	56	44
Net income attributable to Tenneco Inc.	$ 40	$ 180	$ 86	$ 57	$ 68	$ 52	$ 78	$ 49	$ 363	$ 247	$ 226
Weighted average shares of common stock outstanding —
Basic (in shares)									55,939,135	59,678,309	60,734,022
Diluted (in shares)									56,407,436	60,193,150	61,782,508
Basic earnings per share of common stock (in dollars per share)	$ 0.74	$ 3.24	$ 1.51	$ 1	$ 1.18	$ 0.89	$ 1.27	$ 0.81	$ 6.49	$ 4.14	$ 3.72
Diluted earnings per share of common stock (in dollars per share)	$ 0.73	$ 3.21	$ 1.49	$ 0.99	$ 1.17	$ 0.88	$ 1.26	$ 0.80	$ 6.44	$ 4.11	$ 3.66

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended				12 Months Ended
	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net income attributable to Tenneco Inc.	$ 40	$ 57	$ 68	$ 49	$ 363	$ 247	$ 226
Less: Net income attributable to noncontrolling interests					70	56	44
Net income					433	303	270
Cumulative Translation Adjustment
Balance January 1		(298)		(163)	(298)	(163)	(56)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent					(41)	(131)	(105)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest					(4)	(4)	(2)
Translation of foreign currency statements, net of tax					(45)	(135)	(107)
Balance December 31	(343)		(298)		(343)	(298)	(163)
Additional Liability for Pension and Postretirement Benefits [Roll Forward]
Balance January 1		(368)		(379)	(368)	(379)	(299)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent					41	11	(80)
Adjustment to the Liability for Pension and Postretirement benefits, net of tax					41	11	(80)
Balance December 31	(327)		(368)		(327)	(368)	(379)
Balance December 31	(670)		(666)		(670)	(666)	(542)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent					0	(120)	(185)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest					(4)	(4)	(2)
Other comprehensive loss					(4)	(124)	(187)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent					363	127	41
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest					66	52	42
Comprehensive Income					429	179	83
Tenneco Inc.
Cumulative Translation Adjustment
Balance January 1		(297)		(166)	(297)	(166)	(61)
Balance December 31	(338)		(297)		(338)	(297)	(166)
Additional Liability for Pension and Postretirement Benefits [Roll Forward]
Balance January 1		(368)		(379)	(368)	(379)	(299)
Balance December 31	(327)		(368)		(327)	(368)	(379)
Balance December 31	(665)		(665)		(665)	(665)	(545)
Noncontrolling Interests
Cumulative Translation Adjustment
Balance January 1		(1)		3	(1)	3	5
Balance December 31	(5)		(1)		(5)	(1)	3
Additional Liability for Pension and Postretirement Benefits [Roll Forward]
Balance January 1		$ 0		$ 0	0	0	0
Balance December 31	0		0		0	0	0
Balance December 31	$ (5)		$ (1)		$ (5)	$ (1)	$ 3

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions		Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	[1]	$ 347	$ 287
Restricted cash		2	1
Receivables —
Customer notes and accounts, net		1,272	1,102
Other		22	10
Inventories		730	682
Prepayments and other		229	229
Total current assets		2,602	2,311
Other assets:
Long-term receivables, net		9	13
Goodwill		57	60
Intangibles, net		19	22
Deferred income taxes		195	218
Other		103	100
Other Assets		383	413
Plant, property, and equipment, at cost		3,548	3,418
Less — Accumulated depreciation and amortization		(2,191)	(2,175)
Plant, property and equipment, net		1,357	1,243
Total Assets		4,342	3,967
Current liabilities:
Short-term debt (including current maturities of long-term debt)		90	86
Accounts payable		1,496	1,376
Accrued taxes		41	37
Accrued interest		15	4
Accrued liabilities		285	250
Other		43	41
Total current liabilities		1,970	1,794
Long-term debt		1,294	1,124
Deferred income taxes		7	7
Postretirement benefits		273	318
Deferred credits and other liabilities		116	206
Commitments and contingencies
Total liabilities		3,660	3,449
Redeemable noncontrolling interests		43	43
Tenneco Inc. Shareholders’ equity:
Common stock		1	1
Premium on common stock and other capital surplus		3,098	3,081
Accumulated other comprehensive loss		(670)	(666)
Retained earnings (accumulated deficit)		(1,085)	(1,448)
Shareholders equity before deduction of treasury stock		1,349	969
Less — Shares held as treasury stock, at cost		761	536
Total Tenneco Inc. shareholders’ equity		588	433
Noncontrolling interests		51	42
Total equity		639	475
Total liabilities, redeemable noncontrolling interests and equity		$ 4,342	$ 3,967
[1]	Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase.

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Operating Activities
Net income		$ 433		$ 303		$ 270
Adjustments to reconcile net income to cash provided by operating activities —
Depreciation and amortization of other intangibles		212		203		208
Deferred income taxes		(79)		0		(1)
Stock-based compensation		14		15		13
Loss on sale of assets		4		4		6
Changes in components of working capital —
(Increase) decrease in receivables		(215)		(90)		(83)
(Increase) decrease in inventories		(57)		(36)		(74)
(Increase) decrease in prepayments and other current assets		(8)		37		(81)
Increase (decrease) in payables		109		90		94
Increase (decrease) in accrued taxes		4		(1)		0
Increase (decrease) in accrued interest		12		1		(6)
Increase (decrease) in other current liabilities		26		(10)		13
Change in long-term assets		6		3		12
Change in long-term liabilities		26		(2)		(13)
Other		2		0		(17)
Net cash provided by operating activities		489		517		341
Investing Activities
Proceeds from sale of assets		6		4		3
Cash payments for plant, property, and equipment		(325)		(286)		(328)
Cash payments for software related intangible assets		(20)		(23)		(13)
Cash payments for net assets purchased		0		0		(3)
Change in restricted cash		(1)		2		2
Net cash used by investing activities		(340)		(303)		(339)
Financing Activities
Retirement of long-term debt		(531)		(37)		(462)
Issuance of long-term debt		509		1		570
Debt issuance costs of long-term debt		(9)		(1)		(12)
Purchase of common stock under the share repurchase program		(225)		(213)		(22)
Issuance of common stock		18		6		19
Tax impact from stock-based compensation		(10)		6		26
Increase (decrease) in bank overdrafts		10		(22)		6
Net increase (decrease) in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable		202		102		(70)
Net increase (decrease) in short-term borrowings secured by accounts receivable		0		30		(10)
Capital contribution from noncontrolling interest partner		0		0		5
Distribution to noncontrolling interest partners		(55)		(44)		(30)
Net cash provided (used) by financing activities		(91)		(172)		20
Effect of foreign exchange rate changes on cash and cash equivalents		2		(37)		(15)
Increase in cash and cash equivalents		60		5		7
Cash and cash equivalents, January 1		287	[1]	282	[1]	275
Cash and cash equivalents, December 31 (Note)	[1]	347		287		282
Supplemental Cash Flow Information
Cash paid during the year for interest		76		68		93
Cash paid during the year for income taxes (net of refunds)		113		105		136
Non-cash Investing and Financing Activities
Period end balance of trade payables for plant, property, and equipment		$ 68		$ 50		$ 41
[1]	Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase.

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Premium on Common Stock and Other Capital Surplus	Accumulated Other Comprehensive Loss	Retained Earnings (Accumulated Deficit)	Less - Common Stock Held as Treasury Stock, at Cost	Noncontrolling Interest
Treasury Stock, Shares, Acquired						400,000
Treasury Stock, Value, Acquired, Cost Method	$ 22
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest							$ 21
Beginning Balance (in shares) at Dec. 31, 2013		63,714,728				2,844,692
Beginning Balance at Dec. 31, 2013		$ 1	$ 3,014	$ (360)	$ (1,921)	$ 301	39
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued pursuant to benefit plans (in shares)		62,334
Stock options exercised (in shares)		677,186
Premium on common stock issued pursuant to benefit plans			45
Other comprehensive loss	(187)			(185)
Net income attributable to Tenneco Inc.	226				226
Total Tenneco Inc. shareholders’ equity at Dec. 31, 2014	497
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive loss							(1)
Dividends declared							(18)
Ending Balance (in shares) at Dec. 31, 2014		64,454,248				3,244,692
Ending Balance at Dec. 31, 2014	538	$ 1	3,059	(545)	(1,695)	$ 323	41
Treasury Stock, Shares, Acquired						4,228,633
Treasury Stock, Value, Acquired, Cost Method	213
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest							24
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued pursuant to benefit plans (in shares)		335,766
Stock options exercised (in shares)		277,118
Premium on common stock issued pursuant to benefit plans			22
Other comprehensive loss	(124)			(120)
Net income attributable to Tenneco Inc.	247				247
Total Tenneco Inc. shareholders’ equity at Dec. 31, 2015	433
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive loss							(3)
Dividends declared							(20)
Ending Balance (in shares) at Dec. 31, 2015		65,067,132				7,473,325
Ending Balance at Dec. 31, 2015	475	$ 1	3,081	(665)	(1,448)	$ 536	42
Treasury Stock, Shares, Acquired						4,182,613
Treasury Stock, Value, Acquired, Cost Method	225
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest							33
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued pursuant to benefit plans (in shares)		292,514
Stock options exercised (in shares)		532,284
Premium on common stock issued pursuant to benefit plans			17
Other comprehensive loss	(4)			0
Net income attributable to Tenneco Inc.	363				363
Total Tenneco Inc. shareholders’ equity at Dec. 31, 2016	588
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive loss							(2)
Dividends declared							(22)
Ending Balance (in shares) at Dec. 31, 2016		65,891,930				11,655,938
Ending Balance at Dec. 31, 2016	$ 639	$ 1	$ 3,098	$ (665)	$ (1,085)	$ 761	$ 51

Summary of Accounting Policies

Summary of Accounting Policies	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Summary of Accounting Policies	Summary of Accounting Policies Consolidation and Presentation Our consolidated financial statements include all majority-owned subsidiaries. We carry investments in 20 percent to 50 percent owned companies in which the Company does not have a controlling interest, as equity method investments, at cost plus equity in undistributed earnings since the date of acquisition and cumulative translation adjustments. We have eliminated intercompany transactions. We have evaluated all subsequent events through the date our financial statements were issued. Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. These estimates include among others, allowances for doubtful receivables, promotional and product returns, income taxes, pension and postretirement benefit plans, and contingencies. These items are covered in more detail elsewhere in Note 1, Note 7, Note 10, and Note 12 of the consolidated financial statements of Tenneco Inc. Actual results could differ from those estimates. Redeemable Noncontrolling Interests We have noncontrolling interests in five joint ventures with redemption features that could require us to purchase the noncontrolling interests at fair value in the event of a change in control of Tenneco Inc. or certain of our subsidiaries. We do not believe that it is probable that the redemption features in any of these joint venture agreements will be triggered. However, the redemption of these shares is not solely within our control. Accordingly, the related noncontrolling interests are presented as “Redeemable noncontrolling interests” in the temporary equity section of our consolidated balance sheets. In May 2014, we sold a 45 percent equity interest in Tenneco Fusheng (Chengdu) Automobile Parts Co., Ltd., to a third party for $4 million . As a result of the sale, our equity ownership of Tenneco Fusheng (Chengdu) Automobile Parts Co., Ltd. changed to 55 percent from 100 percent . The following is a rollforward of activity in our redeemable noncontrolling interests for the years ending December 31, 2016 , 2015 and 2014 , respectively: 2016 2015 2014 (Millions) Balance January 1 $ 43 $ 35 $ 20 Net income attributable to redeemable noncontrolling interests 37 33 23 Sale of 45 percent equity interest from Tenneco Inc — — 4 Capital Contributions — — 1 Other comprehensive loss (2 ) (1 ) — Dividends declared (35 ) (24 ) (13 ) Balance December 31 $ 43 $ 43 $ 35 Inventories At December 31, 2016 and 2015 , inventory by major classification was as follows: 2016 2015 (Millions) Finished goods $ 284 $ 257 Work in process 245 233 Raw materials 137 135 Materials and supplies 64 57 $ 730 $ 682 Our inventories are stated at the lower of cost or market value using the first-in, first-out (“FIFO”) or average cost methods. Work in process includes purchased parts such as substrates coated with precious metals. Goodwill and Intangibles, net We evaluate goodwill for impairment in the fourth quarter of each year, or more frequently if events indicate it is warranted. The goodwill impairment test consists of a two-step process. In step one, we compare the estimated fair value of our reporting units with goodwill to the carrying value of the unit’s assets and liabilities to determine if impairment exists within the recorded balance of goodwill. We estimate the fair value of each reporting unit using the income approach which is based on the present value of estimated future cash flows. The income approach is dependent on a number of factors, including estimates of market trends, forecasted revenues and expenses, capital expenditures, weighted average cost of capital and other variables. A separate discount rate derived by a combination of published sources, internal estimates and weighted based on our debt to equity ratio, was used to calculate the discounted cash flows for each of our reporting units. These estimates are based on assumptions that we believe to be reasonable, but which are inherently uncertain and outside of the control of management. If the carrying value of the reporting unit is higher than its fair value, there is an indication that impairment may exist which requires step two to be performed to measure the amount of the impairment loss. The amount of impairment is determined by comparing the implied fair value of a reporting unit’s goodwill to its carrying value. At December 31, 2016 , accumulated goodwill impairment charges include $306 million related to our North America Ride Performance reporting unit, $32 million related to our Europe, South America & India Ride Performance reporting unit and $11 million related to our Asia Pacific Ride Performance reporting unit. In the fourth quarter of 2016 , 2015 and 2014 , as a result of our annual goodwill impairment testing, the estimated fair value of each of our reporting units exceeded the carrying value of their assets and liabilities as of the testing date. The changes in the net carrying amount of goodwill for the years ended December 31, 2016 , 2015 and 2014 were as follows: Clean Air Division Ride Performance Division North Europe, South America & India Asia North Europe, South America & India Asia Total (Millions) Balance at December 31, 2014 $ 14 $ 12 $ — $ 10 $ 29 $ — $ 65 Translation Adjustment — (1 ) — — (4 ) — (5 ) Balance at December 31, 2015 14 11 — 10 25 — 60 Translation Adjustment — — — — (3 ) — (3 ) Balance at December 31, 2016 14 11 — 10 22 — 57 We have capitalized certain intangible assets, primarily technology rights, trademarks and patents, based on their estimated fair value at the date we acquired them. We amortize our finite useful life intangible assets on a straight-line basis over periods ranging from 3 to 50 years. Amortization of intangibles amounted to $3 million in 2016 , $5 million in 2015 , and $4 million in 2014 , and are included in the statements of income caption “Depreciation and amortization of intangibles.” The carrying amount and accumulated amortization of our finite useful life intangible assets were as follows: December 31, 2016 December 31, 2015 Gross Carrying Accumulated Gross Carrying Accumulated (Millions) (Millions) Customer contract $ 8 $ (5 ) $ 8 $ (4 ) Patents 1 (1 ) 2 (2 ) Technology rights 29 (21 ) 29 (19 ) Other 9 (1 ) 10 (2 ) Total $ 47 $ (28 ) $ 49 $ (27 ) Estimated amortization of intangible assets over the next five years is expected to be $5 million in 2017 , $4 million in 2018 , $4 million in 2019 , $3 million in 2020 and $2 million in 2021 . Plant, Property, and Equipment, at Cost At December 31, 2016 and 2015 , plant, property, and equipment, at cost, by major category were as follows: 2016 2015 (Millions) Land, buildings, and improvements $ 568 $ 561 Machinery and equipment 2,638 2,569 Other, including construction in progress 342 288 $ 3,548 $ 3,418 We depreciate these properties excluding land on a straight-line basis over the estimated useful lives of the assets. Useful lives range from 10 to 50 years for buildings and improvements and from 3 to 25 years for machinery and equipment. Notes and Accounts Receivable and Allowance for Doubtful Accounts Receivables consist of amounts billed and currently due from customers and unbilled pre-production design and development costs. Short and long-term accounts receivable outstanding were $1,293 million and $1,126 million at December 31, 2016 and 2015 , respectively. The allowance for doubtful accounts on short-term and long-term accounts receivable was $16 million at both December 31, 2016 and 2015 . Short and long-term notes receivable outstanding were $4 million and $5 million at December 31, 2016 and 2015 , respectively. The allowance for doubtful accounts on short-term and long-term notes receivable was zero at both December 31, 2016 and 2015 . Pre-production Design and Development and Tooling Assets We expense pre-production design and development costs as incurred unless we have a contractual guarantee for reimbursement from the original equipment customer. Unbilled pre-production design and development costs recorded in prepayments and other and long-term receivables were $22 million and $21 million at December 31, 2016 and 2015 , respectively. In addition, plant, property and equipment included $62 million and $64 million at December 31, 2016 and 2015 , respectively, for original equipment tools and dies that we own, and prepayments and other included $97 million and $107 million at December 31, 2016 and 2015 , respectively, for in-process tools and dies that we are building for our original equipment customers. Internal Use Software Assets We capitalize certain costs related to the purchase and development of software that we use in our business operations. We amortize the costs attributable to these software systems over their estimated useful lives, ranging from 3 to 12 years, based on various factors such as the effects of obsolescence, technology, and other economic factors. Capitalized software development costs, net of amortization, were $66 million and $58 million at December 31, 2016 and 2015 , respectively, and are recorded in other long-term assets. Amortization of software development costs was approximately $12 million for the year ended December 31, 2016 , $13 million for the year ended December 31, 2015 and $15 million for the year ended December 31, 2014 , and is included in the statements of income (loss) caption “Depreciation and amortization of intangibles.” Additions to capitalized software development costs, including payroll and payroll-related costs for those employees directly associated with developing and obtaining the internal use software, are classified as investing activities in the statements of cash flows. Accounts Payable Accounts payable included $99 million and $93 million at December 31, 2016 and December 31, 2015 , respectively, for accrued compensation and $27 million and $17 million at December 31, 2016 and December 31, 2015 , respectively, for bank overdrafts at our European subsidiaries. Income Taxes We recognize deferred tax assets and liabilities on the basis of the future tax consequences attributable to temporary differences that exist between the financial statement carrying value of assets and liabilities and their respective tax values, and net operating losses ("NOL") and tax credit carryforwards on a taxing jurisdiction basis. We measure deferred tax assets and liabilities using enacted tax rates that will apply in the years in which we expect the temporary differences to be recovered or paid. We evaluate our deferred income taxes quarterly to determine if valuation allowances are required or should be adjusted. U.S. GAAP requires that companies assess whether valuation allowances should be established against their deferred tax assets based on consideration of all available evidence, both positive and negative, using a “more likely than not” standard. 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. Valuation allowances have been established in certain foreign jurisdictions for deferred tax assets based on a “more likely than not” threshold. The ability to realize deferred tax assets depends on our ability to generate sufficient taxable income within the carryforward periods provided for in the tax law for each tax jurisdiction. We have considered the following possible sources of taxable income when assessing the realization of our deferred tax assets: • Future reversals of existing taxable temporary differences; • Taxable income or loss, based on recent results, exclusive of reversing temporary differences and carryforwards; • Tax-planning strategies; and • Taxable income in prior carryback years if carryback is permitted under the relevant tax law. The valuation allowances recorded against deferred tax assets generated by taxable losses in foreign jurisdictions will impact our provision for income taxes until the valuation allowances are released. Our provision for income taxes will include no tax benefit for losses incurred and no tax expense with respect to income generated in these jurisdictions until the respective valuation allowance is eliminated. Revenue Recognition We recognize revenue for sales to our original equipment and aftermarket customers when title and risk of loss passes to the customers under the terms of our arrangements with those customers, which is usually at the time of shipment from our plants or distribution centers. Generally, in connection with the sale of exhaust systems to certain original equipment manufacturers, we purchase catalytic converters and diesel particulate filters or components thereof including precious metals (“substrates”) on behalf of our customers which are used in the assembled system. These substrates are included in our inventory and “passed through” to the customer at our cost, plus a small margin, since we take title to the inventory and are responsible for both the delivery and quality of the finished product. Revenues recognized for substrate sales were $2,028 million , $1,916 million and $1,934 million in 2016 , 2015 and 2014 , respectively. For our aftermarket customers, we provide for promotional incentives and returns at the time of sale. Estimates are based upon the terms of the incentives and historical experience with returns. Certain taxes assessed by governmental authorities on revenue producing transactions, such as value added taxes, are excluded from revenue and recorded on a net basis. Shipping and handling costs billed to customers are included in revenues and the related costs are included in cost of sales in our consolidated statements of income (loss). Warranty Reserves Where we have offered product warranty, we also provide for warranty costs. Provisions for estimated expenses related to product warranty are made at the time products are sold or when specific warranty issues are identified on OE products. These estimates are established using historical information about the nature, frequency, and average cost of warranty claims and upon specific warranty issues as they arise. The warranty terms vary but range from one year up to limited lifetime warranties on some of our premium aftermarket products. We actively study trends of our warranty claims and take action to improve product quality and minimize warranty claims. While we have not experienced any material differences between these estimates and our actual costs, it is reasonably possible that future warranty issues could arise that could have a significant impact on our consolidated financial statements. Earnings Per Share We compute basic earnings per share by dividing income available to common shareholders by the weighted-average number of common shares outstanding. The computation of diluted earnings per share is similar to the computation of basic earnings per share, except that we adjust the weighted-average number of shares outstanding to include estimates of additional shares that would be issued if potentially dilutive common shares had been issued. In addition, we adjust income available to common shareholders to include any changes in income or loss that would result from the assumed issuance of the dilutive common shares. See Note 2 to the consolidated financial statements of Tenneco Inc. Engineering, Research and Development We expense engineering, research, and development costs as they are incurred. Engineering, research, and development expenses were $154 million for 2016 , $146 million for 2015 , and $169 million for 2014 , net of reimbursements from our customers. Our customers reimburse us for engineering, research, and development costs on some platforms when we prepare prototypes and incur costs before platform awards. Our engineering, research, and development expense for 2016 , 2015 and 2014 has been reduced by $137 million , $145 million and $159 million , respectively, for these reimbursements. Advertising and Promotion Expenses We expense advertising and promotion expenses as they are incurred. Advertising and promotion expenses were $40 million , $54 million , and $57 million for the years ended December 31, 2016 , 2015 , and 2014 , respectively. Foreign Currency We translate the consolidated financial statements of foreign subsidiaries into U.S. dollars using the exchange rate at each balance sheet date for assets and liabilities and a weighted-average exchange rate for revenues and expenses in each period. We record translation adjustments for those subsidiaries whose local currency is their functional currency as a component of accumulated other comprehensive income (loss) in shareholders’ equity. We recognize transaction gains and losses arising from fluctuations in currency exchange rates on transactions denominated in currencies other than the functional currency in earnings as incurred, except for those intercompany balances which are designated as long-term investments. Our results include foreign currency transaction gains of $1 million in 2016 and losses of $6 million in 2015 and $1 million in 2014 . The amounts are recorded in cost of sales. We use derivative financial instruments, principally foreign currency forward purchase and sales contracts with terms of less than one year, to hedge our exposure to changes in foreign currency exchange rates. Our primary exposure to changes in foreign currency rates results from intercompany loans made between affiliates to minimize the need for borrowings from third parties. Additionally, we enter into foreign currency forward purchase and sale contracts to mitigate our exposure to changes in exchange rates on certain intercompany and third-party trade receivables and payables. We manage counter-party credit risk by entering into derivative financial instruments with major financial institutions that can be expected to fully perform under the terms of such agreements. We do not enter into derivative financial instruments for speculative purposes. In managing our foreign currency exposures, we identify and aggregate existing offsetting positions and then hedge residual exposures through third-party derivative contracts. The fair value of our foreign currency forward contracts was a net liability position of less than $1 million at December 31, 2016 and a net asset position of $1 million at December 31, 2015 and is based on an internally developed model which incorporates observable inputs including quoted spot rates, forward exchange rates and discounted future expected cash flows utilizing market interest rates with similar quality and maturity characteristics. We record the change in fair value of these foreign exchange forward contracts as part of currency gains (losses) within cost of sales in the consolidated statements of income (loss). The fair value of foreign exchange forward contracts are recorded in prepayments and other current assets or other current liabilities in the consolidated balance sheet. New Accounting Pronouncements In November 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update 2016-18, Statement of Cash Flows - Restricted Cash (Topic 230) to eliminate diversity in practice in the presentation of restricted cash and restricted cash equivalents in the statement of cash flows. For public business entities, the standard is effective for financial statements issued for annual periods beginning after December 15, 2017, and interim periods within those annual periods. The adoption of this guidance is not expected to have a material impact on the Company's consolidated financial statements. In October 2016, the FASB issued Accounting Standard Update 2016-16, Income Taxes - Intra Entity Transfers of Assets Other Than Inventory (Topic 740). The new standard changes the accounting for income taxes when a company transfers certain tangible and intangible assets, such as equipment or intellectual property, between entities in different tax jurisdictions. The new standard does not change the current accounting for the income taxes related to transfers of inventory. For public business entities, the standard is effective for financial statements issued for annual periods beginning after December 15, 2017, and interim periods within those annual periods. The adoption of this guidance is not expected to have a material impact on the Company's consolidated financial statements. In March 2016, the FASB issued Accounting Standard Update 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, as part of its initiative to reduce complexity in accounting standards. The areas for simplification in this update involve several aspects of the accounting for employee share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. For public business entities, the standard is effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods. The adoption of this guidance is not expected to have a material impact on the Company's consolidated financial statements. In February 2016, the FASB issued Accounting Standard Update 2016-02, Leases (Topic 842). The amendments in this update create Topic 842, Leases, and supersede the leases requirements in Topic 840, Leases. Topic 842 specifies the accounting for 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 flow 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. We will adopt this amendment on January 1, 2019. We are currently evaluating the potential impact of this new guidance on the Company's consolidated financial statements. In May 2015, the FASB issued Accounting Standard Update (ASU) No. 2015-07, Disclosures for Investments in Certain Entities that Calculate Net Asset Value per Share (or Its Equivalent). ASU No. 2015-07 removes the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using the net asset value per share practical expedient. Such investments should be disclosed separate from the fair value hierarchy. For public business entities, the standard is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The adoption of this guidance does not have an impact on the Company's consolidated financial statements but will impact pension asset disclosure. In May 2014, the FASB issued an amendment on revenue recognition. The amendment in this update creates Topic 606, Revenue from Contracts with Customers, and supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, including most industry-specific revenue recognition guidance throughout the Industry Topics of the Codification. In addition, the amendment supersedes the cost guidance in Subtopic 605-35, Revenue Recognition-Construction-Type and Production-Type Contracts, and creates new Subtopic 340-40, Other Assets and Deferred Costs-Contracts with Customers. The core principle of Topic 606 is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The FASB approved a one-year deferral of the effective date from January 1, 2017 to January 1, 2018, while allowing for early adoption as of January 1, 2017 for public entities. We will adopt this amendment on January1, 2018. The guidance permits the use of either the retrospective or modified retrospective (cumulative effect) transition method and we have not yet selected which transition method we will apply. We have established a cross-functional coordinated team to implement the guidance related to the recognition of revenue from contracts with customers. We are in the process of assessing our customer contracts, identifying contractual provisions that may result in a change in the timing or the amount of revenue recognized in comparison with current guidance, as well as assessing the enhanced disclosure requirements of the new guidance. Under current guidance we generally recognize revenue when products are shipped and risk of loss has transferred to the customer. Under the proposed requirements, the customized nature of some of our products combined with contractual provisions that provide us with an enforceable right to payment, may require us to recognize revenue prior to the product being shipped to the customer. We are also assessing pricing provisions contained in certain of our customer contracts. Pricing provisions contained in some of our customer contracts represent variable consideration or may provide the customer with a material right, potentially resulting in a different allocation of the transaction price than under current guidance. In addition, we are evaluating how the new guidance may impact our accounting for contractually guaranteed reimbursements related to customer tooling, engineering services and pre-production costs. Under the current applicable guidance, these customer reimbursements are recorded as cost recovery offsets; whereas under the new standard these guaranteed recoveries may represent consideration from contracts with customers and be recorded as revenues. We continue to evaluate the impact this guidance will have on our financial statements. Restricted Net Assets In certain countries where we operate, transfers of funds out of such countries by way of dividends, loans or advances are subject to certain central bank restrictions which require approval from the central bank authorities prior to transferring funds out of these countries. The countries in which we operate that have such restrictions include China, South Africa, and Thailand. The net asset balance of our subsidiaries in the countries in which we operate that have such restrictions was $323 million and $248 million as of December 31, 2016 and 2015 , respectively. These central banking restrictions do not have a significant effect on our ability to manage liquidity on a global basis.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Earnings per share of common stock outstanding were computed as follows: Year Ended December 31, 2016 2015 2014 (Millions Except Share and Per Share Amounts) Basic earnings per share — Net income attributable to Tenneco Inc. $ 363 $ 247 $ 226 Average shares of common stock outstanding 55,939,135 59,678,309 60,734,022 Earnings per average share of common stock $ 6.49 $ 4.14 $ 3.72 Diluted earnings per share — Net income attributable to Tenneco Inc. $ 363 $ 247 $ 226 Average shares of common stock outstanding 55,939,135 59,678,309 60,734,022 Effect of dilutive securities: Restricted stock 175,513 96,168 130,732 Stock options 292,788 418,673 917,754 Average shares of common stock outstanding including dilutive securities 56,407,436 60,193,150 61,782,508 Earnings per average share of common stock $ 6.44 $ 4.11 $ 3.66 Options to purchase 134,361 , 175,216 , and 1,357 shares of common stock were outstanding as of December 31, 2016 , 2015 and 2014 , respectively, but not included in the computation of diluted earnings per share, because the options were anti-dilutive.

Acquisitions and Divestitures

Acquisitions and Divestitures	12 Months Ended
	Dec. 31, 2016
Business Combinations [Abstract]
Acquisitions and Divestitures	Acquisitions and divestitures In May 2014, we sold a 45 percent equity interest in Tenneco Fusheng (Chengdu) Automobile Parts Co., Ltd., to a third party for $4 million . As a result of the sale, our equity ownership of Tenneco Fusheng (Chengdu) Automobile Parts Co., Ltd. changed to 55 percent from 100 percent . The net impact to equity from the sale was less than $1 million . In November 2015, we closed on the sale of certain assets related to our Marzocchi mountain bike suspension product line to affiliates of Fox Factory Holding Corp.; and in December 2015, we closed on the sale of the Marzocchi motorcycle fork product line to an Italian company, VRM S.p.A. We recorded charges of $29 million in 2015 related to severance and other employee related costs, asset write-downs and other expenses related to the closure. In March 2016, we completed the disposition of the Gijon, Spain plant and signed an agreement to transfer ownership of the manufacturing facility in Gijon to German private equity fund Quantum Capital Partners A.G. (QCP). The transfer to QCP was effective March 31, 2016 and under a three year manufacturing agreement, QCP will also continue as a supplier to Tenneco.

Restructuring and Other Charges

Restructuring and Other Charges Restructuring and Other Charges	12 Months Ended
	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Restructuring and Other Charges	Restructuring and Other Charges Over the past several years, we have adopted plans to restructure portions of our operations. These plans were approved by our Board of Directors and were designed to reduce operational and administrative overhead costs throughout the business. In 2014, we incurred $49 million in restructuring and related costs including non-cash charges of $5 million , primarily related to European cost reduction efforts, headcount reductions in Australia and South America, the sale of a closed facility in Cozad, Nebraska and costs related to organizational change, of which $28 million was recorded in cost of sales, $9 million in SG&A, $7 million in engineering expense, $4 million in other expense and $1 million in depreciation and amortization. In 2015, we incurred $63 million in restructuring and related costs including asset write-downs of $10 million , primarily related to European cost reduction efforts, exiting the Marzocchi suspension business, headcount reductions in Australia and South America, and the closure of a JIT plant in Australia, of which $46 million was recorded in cost of sales, $11 million in SG&A, $1 million in engineering expense, $4 million in depreciation and amortization expense and $1 million in other expense. In 2016, we incurred $36 million in restructuring and related costs including asset write-downs of $6 million , primarily related to manufacturing footprint improvements in North America Ride Performance, headcount reduction and cost improvement initiatives in Europe and China Clean Air, South America and Australia, of which $17 million was recorded in cost of sales, $12 million in SG&A, $1 million in engineering, $2 million in other expense and $4 million in depreciation and amortization expense. Amounts related to activities that are part of our restructuring plans are as follows: December 31, 2016 2016 Impact of Exchange Rates December 31, (Millions) Employee Severance, Termination Benefits and Other Related Costs $ 30 30 (45 ) — $ 15 On January 31, 2013, we announced our intent to reduce structural costs in Europe by approximately $60 million annually. During the first quarter of 2016, we reached an annualized run rate on this cost reduction initiative of $49 million . With the disposition of the Gijon plant, which was completed at the end of the first quarter of 2016, the annualized rate essentially reached our target of $55 million , at the current exchange rates at that time. In 2014, we incurred $49 million in restructuring and related costs, of which $31 million was related to this initiative including $3 million for non-cash asset write downs. In 2015, we incurred $63 million in restructuring and related costs, of which $22 million was related to this initiative. In 2016, we incurred $36 million in restructuring and related costs, of which $20 million was related to this initiative and certain ongoing matters. For example, we closed a plant in Gijon Spain in 2013, but subsequently re-opened it in July 2014 with about half of its prior workforce after the employees' works council successfully filed suit challenging the closure decision. Pursuant to an agreement we entered into with employee representatives, we engaged in a sales process for the facility. In March of 2016, we signed an agreement to transfer ownership of the aftermarket shock absorber manufacturing facility in Gijon, Spain to German private equity fund Quantum Capital Partners A.G. (QCP). The transfer to QCP was effective March 31, 2016 and under a three year manufacturing agreement, QCP will also continue as a supplier to Tenneco. On July 22, 2015, we announced our intention to discontinue our Marzocchi motorcycle fork suspension product line and our mountain bike suspension product line, and liquidate our Marzocchi operations. These actions were subject to a consultation process with the employee representatives and in total eliminated approximately 138 jobs. We employed 127 people at the Marzocchi plant in Bologna, Italy and an additional 11 people in our operations in North America and Taiwan. In November 2015, we closed on the sale of certain assets related to our Marzocchi mountain bike suspension product line to the affiliates of Fox Factory Holding Corp.; and in December 2015, we closed on the sale of the Marzocchi motorcycle fork product line to an Italian company, VRM S.p.A. These actions were a part of our ongoing efforts to optimize our Ride Performance product line globally while continuously improving our operations and increasing profitability. We recorded charges of $29 million in 2015 related to severance and other employee related costs, asset write-downs and other expenses related to the closure. Under the terms of our amended and restated senior credit agreement that took effect on December 8, 2014, we are allowed to exclude up to $150 million in the aggregate of all costs, expenses, fees, fines, penalties, judgments, legal settlements and other amounts associated with any restructuring, litigation, claim, proceeding or investigation related to or undertaken by us or any of our subsidiaries, together with any related provision for taxes, incurred after December 8, 2014 in the calculation of the financial covenant ratios required under our senior credit facility. As of December 31, 2016 , we had excluded $83 million of allowable charges relating to restructuring initiatives against the $150 million available under the terms of the senior credit facility.

Long-Term Debt, Short-Term Debt

Long-Term Debt, Short-Term Debt, and Financing Arrangements	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Long-Term Debt, Short-Term Debt, and Financing Arrangements	Long-Term Debt, Short-Term Debt, and Financing Arrangements Long-Term Debt A summary of our long-term debt obligations at December 31, 2016 and 2015 , is set forth in the following table: 2016 2015 (Millions) Tenneco Inc. — Revolver borrowings due 2019, average effective interest rate 2.3% in 2016 and 2.0% in 2015 $ 300 $ 105 Senior Tranche A Term Loan due 2017 through 2020, average effective interest rate 2.2% in 2016 and 1.9% in 2015 270 285 5 3/8% Senior Notes due 2024 225 225 5% Senior Notes due 2026 500 — 6 7/8% Senior Notes due 2020 — 500 Other subsidiaries — Other Long Term Debt due in 2019, average interest rate 1.7% in 2016 and 6.55% in 2016 7 15 Notes due 2017 through 2027, average effective interest rate 0.2% in 2016 and 0.1% in 2015 8 7 1,310 1,137 Less — maturities classified as current 3 1 Total long-term debt $ 1,307 $ 1,136 The aggregate maturities applicable to the long-term debt outstanding at December 31, 2016 , are $25 million , $34 million , $522 million , $1 million and $1 million for 2017, 2018, 2019, 2020 and 2021, respectively. We have excluded the required payments, within the next twelve months, under the Tranche A Term Facility totaling $23 million from current liabilities as of December 31, 2016 , because we have the intent and ability to refinance the obligations on a long-term basis by using our revolving credit facility. Short-Term Debt Our short-term debt includes the current portion of long-term obligations and borrowings by parent company and foreign subsidiaries. Information regarding our short-term debt as of and for the years ended December 31, 2016 and 2015 is as follows: 2016 2015 (Millions) Maturities classified as current $ 3 $ 1 Short-term borrowings 87 85 Total short-term debt $ 90 $ 86 Notes Payable(a) 2016 2015 (Dollars in Millions) Outstanding borrowings at end of year $ 87 $ 85 Weighted average interest rate on outstanding borrowings at end of year(b) 2.8 % 3.2 % Maximum month-end outstanding borrowings during year $ 193 $ 178 Average month-end outstanding borrowings during year $ 177 $ 118 Weighted average interest rate on average month-end outstanding borrowings during year(b) 2.4 % 3.0 % (a) Includes borrowings under both committed credit facilities and uncommitted lines of credit and similar arrangements. (b) This calculation does not include the commitment fees to be paid on the unused revolving credit facility balances which are recorded as interest expense for accounting purposes. Financing Arrangements Committed Credit Facilities(a) as of December 31, 2016 Term Commitments Borrowings Letters of Credit(b) Available (Millions) Tenneco Inc. revolving credit agreement 2019 $ 1,200 $ 300 $ — $ 900 Tenneco Inc. tranche A term facility 2019 270 270 — — Subsidiaries’ credit agreements 2017-2027 128 89 — 39 $ 1,598 $ 659 $ — $ 939 (a) We generally are required to pay commitment fees on the unused portion of the total commitment. (b) Letters of credit reduce the available borrowings under the revolving credit agreement. Overview. Our financing arrangements are primarily provided by a committed senior secured financing arrangement with a syndicate of banks and other financial institutions. The arrangement is secured by substantially all our domestic assets and pledges of up to 66 percent of the stock of certain first-tier foreign subsidiaries, as well as guarantees by our material domestic subsidiaries. On December 8, 2014, we completed an amendment and restatement of our senior credit facility by increasing the amounts and extending the maturity dates of our revolving credit facility and our Tranche A Term Facility. The amended and restated facility replaces our former $850 million revolving credit facility and $213 million Tranche A Term Facility. The proceeds from this refinancing transaction were used to repay the $213 million Tranche A Term Facility, to fund the fees and expenses associated with the purchase and redemption of our $225 million 7 3 / 4 percent senior notes due in 2018 and for general corporate purposes. As of December 31, 2016 , the senior credit facility provides us with a total revolving credit facility size of $1,200 million and a $270 million Tranche A Term Facility, both of which will mature on December 8, 2019. Funds may be borrowed, repaid and re-borrowed under the revolving credit facility without premium or penalty (subject to any customary LIBOR breakage fees). The revolving credit facility is reflected as debt on our balance sheet only if we borrow money under this facility or if we use the facility to make payments for letters of credit. Outstanding letters of credit reduce our availability to borrow revolving loans under the facility. We are required to make quarterly principal payments under the Tranche A Term Facility of $5.625 million beginning March 31, 2017 through December 31, 2017, $7.5 million beginning March 31, 2018 through September 30, 2019 and a final payment of $195 million is due on December 8, 2019. We have excluded the required payments, within the next twelve months, under the Tranche A Term Facility totaling $23 million from current liabilities as of December 31, 2016 , because we have the intent and ability to refinance the obligations on a long-term basis by using our revolving credit facility. On November 20, 2014, we announced a cash tender offer to purchase our outstanding $225 million 7 3 / 4 percent senior notes due in 2018 and a solicitation of consents to certain proposed amendments to the indenture governing these notes. We received tenders and consents representing $181 million aggregate principal amount of the notes and, on December 5, 2014, we purchased the tendered notes at a price of 104.35 percent of the principal amount (which includes a consent payment of three percent of the principal amount), plus accrued and unpaid interest, and amended the related indenture. On December 22, 2014, we redeemed the remaining outstanding $44 million aggregate principal amount of senior notes that were not purchased pursuant to the tender offer at a price of 103.88 percent of the principal amount, plus accrued and unpaid interest. The additional liquidity provided by the new $1,200 million revolving credit facility and the new $300 million Tranche A Term Facility was used in part to fund the fees and expenses of the tender offer and redemption. We recorded $13 million of pre-tax interest charges in December 2014 related to the refinancing of our senior credit facility, the repurchase and redemption of our 7 3 / 4 percent senior notes due in 2018 and the write-off of deferred debt issuance costs relating to those notes. On June 6, 2016, we announced a cash tender offer to purchase our outstanding $500 million 6 7 /8 percent senior notes due in 2020. We received tenders representing $325 million aggregate principal amount of the notes and, on June 13, 2016, we purchased the tendered notes at a price of 103.81 percent of the principal amount, plus accrued and unpaid interest. On July 13, 2016, we redeemed the remaining outstanding $175 million aggregate principal amount of the notes that were not purchased pursuant to the tender offer at a price of 103.438 percent of the principal amount, plus accrued and unpaid interest. We used the proceeds of the issuance of our 5 percent senior notes due 2026 to fund the purchase and redemption. The senior credit facility was used to fund the fees and expenses of the tender offer and redemption. We recorded $16 million and $8 million of pre-tax interest charges in June and July of 2016, respectively, related to the repurchase and redemption of our 6 7 /8 percent senior notes due in 2020 and the write-off of deferred debt issuance costs relating to those notes. At December 31, 2016 , of the $1,200 million available under the revolving credit facility, we had unused borrowing capacity of $900 million with $300 million in outstanding borrowings and zero in outstanding letters of credit. As of December 31, 2016 , our outstanding debt also included (i) $270 million of a term loan which consisted of a $269 million net carrying amount including a $1 million debt issuance cost related to our Tranche A Term Facility which is subject to quarterly principal payments as described above through December 8, 2019, (ii) $225 million of notes which consisted of a $221 million net carrying amount including a $4 million debt issuance cost of 5 3 /8 percent senior notes due December 15, 2024, (iii) $500 million of notes which consisted of a $492 million net carrying amount including a $8 million debt issuance cost of 5 percent senior notes due July 15, 2026, and (iv) $102 million of other debt. Senior Credit Facility — Interest Rates and Fees. Beginning December 8, 2014, our Tranche A Term Facility and revolving credit facility bear interest at an annual rate equal to, at our option, either (i) London Interbank Offered Rate (“LIBOR”) plus a margin of 175 basis points, or (ii) a rate consisting of the greater of (a) the JPMorgan Chase prime rate plus a margin of 75 basis points, (b) the Federal Funds rate plus 50 basis points plus a margin of 75 basis points, and (c) one month LIBOR plus 100 basis points plus a margin of 75 basis points. The margin we pay on these borrowings will be increased by a total of 25 basis points above the original margin following each fiscal quarter for which our consolidated net leverage ratio is equal to or greater than 2.25 and less than 3.25, and will be increased by a total of 50 basis points above the original margin following each fiscal quarter for which our consolidated net leverage ratio is equal to or greater than 3.25. In addition, the margin we pay on these borrowings will be reduced by a total of 25 basis points below the original margin if our consolidated net leverage ratio is less than 1.25. We also pay a commitment fee equal to 30 basis points that will be reduced to 25 basis points or increased to up to 40 basis points depending on consolidated net leverage ratio changes as set forth in the senior credit facility. Senior Credit Facility — Other Terms and Conditions. Our senior credit facility requires that we maintain financial ratios equal to or better than the following consolidated net leverage ratio (consolidated indebtedness net of cash divided by consolidated EBITDA, as defined in the senior credit facility agreement), and consolidated interest coverage ratio (consolidated EBITDA divided by consolidated interest expense, as defined in the senior credit facility agreement) at the end of each period indicated. Failure to maintain these ratios will result in a default under our senior credit facility. The financial ratios required under the amended and restated senior credit facility and the actual ratios we achieved for the four quarters of 2016 , are as follows: Quarter Ended December 31, September 30, June 30, March 31, Req. Act. Req. Act. Req. Act. Req. Act. Leverage Ratio (maximum) 3.50 1.45 3.50 1.52 3.50 1.45 3.50 1.54 Interest Coverage Ratio (minimum) 2.75 14.92 2.75 14.26 2.75 13.93 2.75 13.90 The senior credit facility includes a maximum leverage ratio covenant of 3.50 and a minimum interest coverage ratio of 2.75 through December 8, 2019. The covenants in our senior credit facility agreement generally prohibit us from repaying or refinancing our senior notes. So long as no default existed, we would, however, under our senior credit facility agreement, be permitted to repay or refinance our senior notes (i) with the net cash proceeds of permitted refinancing indebtedness (as defined in the senior credit facility agreement) or with the net cash proceeds of our common stock in each case issued within 180 days prior to such repayment; (ii) with the net cash proceeds of the incremental facilities (as defined in the senior credit facility agreement) and certain indebtedness incurred by our foreign subsidiaries; (iii) with the proceeds of the revolving loans (as defined in the senior credit facility agreement); (iv) with the cash generated by our operations; (v) in an amount equal to the net cash proceeds of qualified capital stock (as defined in the senior credit facility agreement) issued by us after December 8, 2014; and (vi) in exchange for permitted refinancing indebtedness or in exchange for shares of our common stock; provided that such purchases are capped as follows (with respect to clauses (iii), (iv) and (v) based on a pro forma consolidated leverage ratio after giving effect to such purchase, cancellation or redemption): Pro forma Consolidated Aggregate Senior (Millions) Greater than or equal to 3.0x $ 20 Greater than or equal to 2.5x $ 100 Greater than or equal to 2.0x $ 200 Less than 2.0x no limit Although the senior credit facility agreement would permit us to repay or refinance our senior notes under the conditions described above, any repayment or refinancing of our outstanding notes would be subject to market conditions and either the voluntary participation of note holders or our ability to redeem the notes under the terms of the applicable note indenture. For example, while the senior credit facility agreement would allow us to repay our outstanding notes via a direct exchange of the notes for either permitted refinancing indebtedness or for shares of our common stock, we do not, under the terms of the agreements governing our outstanding notes, have the right to refinance the notes via any type of direct exchange. The senior credit facility agreement also contains other restrictions on our operations that are customary for similar facilities, including limitations on: (i) incurring additional liens; (ii) sale and leaseback transactions (except for the permitted transactions as described in the senior credit facility agreement); (iii) liquidations and dissolutions; (iv) incurring additional indebtedness or guarantees; (v) investments and acquisitions; (vi) dividends and share repurchases; (vii) mergers and consolidations; and (viii) refinancing of the senior notes. Compliance with these requirements and restrictions is a condition for any incremental borrowings under the senior credit facility agreement and failure to meet these requirements enables the lenders to require repayment of any outstanding loans. As of December 31, 2016 , we were in compliance with all the financial covenants and operational restrictions of the senior credit facility. Our senior credit facility does not contain any terms that could accelerate payment of the facility or affect pricing under the facility as a result of a credit rating agency downgrade. Senior Notes. As of December 31, 2016 , our outstanding senior notes included $225 million of 5 3 / 8 percent senior notes due December 15, 2024 which consisted of $221 million net carrying amount including a $4 million debt issuance cost and $500 million of 5 percent senior notes due July 15, 2026 which consisted of $492 million net carrying amount including a $8 million debt issuance cost. Under the indentures governing the notes, we are permitted to redeem some or all of the remaining senior notes at specified prices that decline to par over a specified period, (a) on or after July 15, 2021, in the case of the senior notes due 2026 and (b) on or after December 15, 2019, in the case of the senior notes due 2024. In addition, the notes may also be redeemed at a price generally equal to 100 percent of the principal amount thereof plus a premium based on the present values of the remaining payments due to the note holders. Further, the indentures governing the notes also permit us to redeem up to 35 percent with the proceeds of certain equity offerings (a) on or before July 15, 2019 at a redemption price equal to 105 percent, in the case of the senior notes due 2026 and (b) on or before December 15, 2017 at a redemption price equal to 105.375 percent in the case of the senior notes due 2024. If we sell certain of our assets or experience specified kinds of changes in control, we must offer to repurchase the notes due 2024 and 2026 at 101 percent of the principal amount thereof plus accrued and unpaid interest. Our senior notes due December 15, 2024 and July 15, 2026, respectively, contain covenants that will, among other things, limit our ability to create liens and enter into sale and leaseback transactions. Our senior notes due 2024 also require that, as a condition precedent to incurring certain types of indebtedness not otherwise permitted, our consolidated fixed charge coverage ratio, as calculated on a pro forma basis, be greater than 2.00 , as well as containing restrictions on our operations, including limitations on: (i) incurring additional indebtedness; (ii) dividends; (iii) distributions and stock repurchases; (iv) investments; (v) asset sales and (vi) mergers and consolidations. Subject to limited exceptions, all of our existing and future material domestic wholly owned subsidiaries fully and unconditionally guarantee our senior notes on a joint and several basis. There are no significant restrictions on the ability of the subsidiaries that have guaranteed these notes to make distributions to us. As of December 31, 2016 , we were in compliance with the covenants and restrictions of these indentures. Accounts Receivable Securitization. We securitize some of our accounts receivable on a limited recourse basis in the U.S. and Europe. As servicer under these accounts receivable securitization programs, we are responsible for performing all accounts receivable administration functions for these securitized financial assets including collections and processing of customer invoice adjustments. In the U.S., we have an accounts receivable securitization program with three commercial banks comprised of a first priority facility and a second priority facility. We securitize original equipment and aftermarket receivables on a daily basis under the bank program. In March 2015, the U.S. program was amended and extended to April 30, 2017. The first priority facility provides financing of up to $130 million and the second priority facility, which is subordinated to the first priority facility, provides up to an additional $50 million of financing. Both facilities monetize accounts receivable generated in the U.S. that meet certain eligibility requirements. The second priority facility also monetizes certain accounts receivable generated in the U.S. that would otherwise be ineligible under the first priority securitization facility. The amount of outstanding third-party investments in our securitized accounts receivable under the U.S. program was $30 million at December 31, 2016 and zero at December 31, 2015 . Each facility contains customary covenants for financings of this type, including restrictions related to liens, payments, mergers or consolidations and amendments to the agreements underlying the receivables pool. Further, each facility may be terminated upon the occurrence of customary events (with customary grace periods, if applicable), including breaches of covenants, failure to maintain certain financial ratios, inaccuracies of representations and warranties, bankruptcy and insolvency events, certain changes in the rate of default or delinquency of the receivables, a change of control and the entry or other enforcement of material judgments. In addition, each facility contains cross-default provisions, where the facility could be terminated in the event of non-payment of other material indebtedness when due and any other event which permits the acceleration of the maturity of material indebtedness. We also securitize receivables in our European operations with regional banks in Europe. The arrangements to securitize receivables in Europe are provided under six separate facilities provided by various financial institutions in each of the foreign jurisdictions. The commitments for these arrangements are generally for one year , but some may be cancelled with notice 90 days prior to renewal. In some instances, the arrangement provides for cancellation by the applicable financial institution at any time upon notification. The amount of outstanding third-party investments in our securitized accounts receivable in Europe was $160 million and $174 million at December 31, 2016 and December 31, 2015 , respectively. If we were not able to securitize receivables under either the U.S or European securitization programs, our borrowings under our revolving credit agreement might increase. These accounts receivable securitization programs provide us with access to cash at costs that are generally favorable to alternative sources of financing, and allow us to reduce borrowings under our revolving credit agreement. In our U.S. accounts receivable securitization programs, we transfer a partial interest in a pool of receivables and the interest that we retain is subordinate to the transferred interest. Accordingly, we account for our U.S. securitization program as a secured borrowing. In our European programs, we transfer accounts receivables in their entirety to the acquiring entities and satisfy all of the conditions established under ASC Topic 860, “Transfers and Servicing,” to report the transfer of financial assets in their entirety as a sale. The fair value of assets received as proceeds in exchange for the transfer of accounts receivable under our European securitization programs approximates the fair value of such receivables. We recognized $3 million in interest expense for the year ended 2016 and $2 million in interest expense for each of the years ended 2015 and 2014 relating to our U.S. securitization program. In addition, we recognized a loss of $3 million for each of the years ended 2016 and 2015 and a $4 million loss for 2014 , on the sale of trade accounts receivable in our European accounts receivable securitization programs, representing the discount from book values at which these receivables were sold to our banks. The discount rate varies based on funding costs incurred by our banks, which averaged approximately two percent for all years ended 2016 , 2015 and 2014 .

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2016
Disclosure Financial Instruments Additional Information [Abstract]
Financial Instruments	Financial Instruments The carrying and estimated fair values of our financial instruments by class at December 31, 2016 and 2015 were as follows: December 31, 2016 December 31, 2015 Carrying Fair Carrying Fair (Millions) Long-term debt (including current maturities) $ 1,297 $ 1,311 $ 1,125 $ 1,160 Instruments with off-balance sheet risk: Foreign exchange forward contracts: Asset derivative contracts — — 1 1 Asset and Liability Instruments — The fair value of cash and cash equivalents, short and long-term receivables, accounts payable, and short-term debt was considered to be the same as or was not determined to be materially different from the carrying amount. Long-term Debt — The fair value of our public fixed rate senior notes is based on quoted market prices. The fair value of our private borrowings under our senior credit facility and other long-term debt instruments is based on the market value of debt with similar maturities, interest rates and risk characteristics. The fair value of our level 1 debt, as classified in the fair value hierarchy, was $725 million and $748 million at December 31, 2016 and December 31, 2015 , respectively. We have classified the $571 million and $390 million as level 2 in the fair value hierarchy at December 31, 2016 and December 31, 2015 , respectively, since we utilize valuation inputs that are observable both directly and indirectly. We classified the remaining $15 million and $22 million , consisting of foreign subsidiary debt, as level 3 in the fair value hierarchy at December 31, 2016 , and December 31, 2015 , respectively. 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. Foreign exchange forward contracts — We use derivative financial instruments, principally foreign currency forward purchase and sales contracts with terms of less than one year, to hedge our exposure to changes in foreign currency exchange rates. Our primary exposure to changes in foreign currency rates results from intercompany loans made between affiliates to minimize the need for borrowings from third parties. Additionally, we enter into foreign currency forward purchase and sale contracts to mitigate our exposure to changes in exchange rates on certain intercompany and third-party trade receivables and payables. We manage counter-party credit risk by entering into derivative financial instruments with major financial institutions that can be expected to fully perform under the terms of such agreements. We do not enter into derivative financial instruments for speculative purposes. The fair value of our foreign currency forward contracts is based on an internally developed model which incorporates observable inputs including quoted spot rates, forward exchange rates and discounted future expected cash flows utilizing market interest rates with similar quality and maturity characteristics. We record the change in fair value of these foreign exchange forward contracts as part of currency gains (losses) within cost of sales in the consolidated statements of income. The fair value of foreign exchange forward contracts are recorded in prepayments and other current assets or other current liabilities in the consolidated balance sheet. The fair value of our foreign currency forward contracts was a net liability position of less than $1 million at December 31, 2016 and a net asset position of $1 million at December 31, 2015 . The following table summarizes by major currency the notional amounts for foreign currency forward purchase and sale contracts as of December 31, 2016 (all of which mature in 2017 ): Notional Amount (Millions) British pounds —Purchase 9 Canadian dollars —Sell (2 ) European euro —Purchase 21 —Sell (3 ) Japanese yen —Purchase 388 —Sell (60 ) South African rand —Purchase 131 —Sell (17 ) U.S. dollars —Purchase 5 —Sell (45 ) Guarantees — We have from time to time issued guarantees for the performance of obligations by some of our subsidiaries, and some of our subsidiaries have guaranteed our debt. All of our existing and future material domestic subsidiaries fully and unconditionally guarantee our senior credit facility and our senior notes on a joint and several basis. The arrangement for the senior credit facility is also secured by first-priority liens on substantially all our domestic assets and pledges of up to 66 percent of the stock of certain first-tier foreign subsidiaries. No assets or capital stock secure our senior notes. For additional information, refer to Note 13 of the consolidated financial statements of Tenneco Inc., where we present the Supplemental Guarantor Condensed Consolidating Financial Statements. We have two performance guarantee agreements in the U.K. between Tenneco Management (Europe) Limited (“TMEL”) and the two Walker Group Retirement Plans, the Walker Group Employee Benefit Plan and the Walker Group Executive Retirement Benefit Plan (the “Walker Plans”), whereby TMEL will guarantee the payment of all current and future pension contributions in event of a payment default by the sponsoring or participating employers of the Walker Plans. The Walker Plans are comprised of employees from Tenneco Walker (U.K.) Limited and our Futaba-Tenneco U.K. joint venture. Employer contributions are funded by both Tenneco Walker (U.K.) Limited, as the sponsoring employer and Futaba-Tenneco U.K., as a participating employer. The performance guarantee agreements are expected to remain in effect until all pension obligations for the Walker Plans’ sponsoring and participating employers have been satisfied. The maximum amount payable for these pension performance guarantees that is not attributable to Tenneco is approximately $7 million as of December 31, 2016 which is determined by taking 105 percent of the liability of the Walker Plans calculated under section 179 of the U.K. Pension Act of 2004 offset by plan assets multiplied by the ownership percentage in Futaba-Tenneco U.K. that is attributable to Futaba Industrial Co. Ltd. We did not record an additional liability for this performance guarantee since Tenneco Walker (U.K.) Limited, as the sponsoring employer of the Walker Plans, already recognizes 100 percent of the pension obligation calculated based on U.S. GAAP, for all of the Walker Plans’ participating employers on its balance sheet, which was $19 million and $11 million at December 31, 2016 and December 31, 2015 , respectively. At December 31, 2016 , all pension contributions were current for all of the Walker Plans’ sponsoring and participating employers. In June 2011, we entered into an indemnity agreement between TMEL and Futaba Industrial Co. Ltd. which requires Futaba to indemnify TMEL for any cost, loss or liability which TMEL may incur under the performance guarantee agreements relating to the Futaba-Tenneco U.K. joint venture. The maximum amount reimbursable by Futaba to TMEL under this indemnity agreement is equal to the amount incurred by TMEL under the performance guarantee agreements multiplied by Futaba’s shareholder ownership percentage of the Futaba-Tenneco U.K. joint venture. At December 31, 2016 , the maximum amount reimbursable by Futaba to TMEL is approximately $7 million . We have issued guarantees through letters of credit in connection with some obligations of our affiliates. As of December 31, 2016 , we have guaranteed $31 million in letters of credit to support some of our subsidiaries’ insurance arrangements, foreign employee benefit programs, environmental remediation activities and cash management and capital requirements. Financial Instruments — One of our European subsidiaries receives payment from one of its customers whereby the accounts receivable are satisfied through the delivery of negotiable financial instruments. We may collect these financial instruments before their maturity date by either selling them at a discount or using them to satisfy accounts receivable that have previously been sold to a European bank. Any of these financial instruments which are not sold are classified as other current assets. Such financial instruments held by our European subsidiary totaled less than $1 million at both December 31, 2016 and December 31, 2015 . In certain instances, several of our Chinese subsidiaries receive payment from customers through the receipt of financial instruments on the date the customer payments are due. Several of our Chinese subsidiaries also satisfy vendor payments through the delivery of financial instruments on the date the payments are due. Financial instruments issued to satisfy vendor payables and not redeemed totaled $12 million and $15 million at December 31, 2016 and December 31, 2015 , respectively, and were classified as notes payable. Financial instruments received from OE customers and not redeemed totaled $5 million and $8 million at December 31, 2016 and December 31, 2015 , respectively. We classify financial instruments received from our customers as other current assets if issued by a financial institution of our customers or as customer notes and accounts, net if issued by our customer. We classified $5 million and $8 million in other current assets at December 31, 2016 and December 31, 2015 , respectively. The financial instruments received by one of our European subsidiaries and some of our Chinese subsidiaries are drafts drawn that are payable at a future date and, in some cases, are negotiable and/or are guaranteed by the banks of the customers. The use of these instruments for payment follows local commercial practice. Because certain of such financial instruments are guaranteed by our customers’ banks, we believe they represent a lower financial risk than the outstanding accounts receivable that they satisfy which are not guaranteed by a bank. Supply Chain Financing. Certain of our suppliers participate in supply chain financing programs under which they securitize their accounts receivables from Tenneco. Financial institutions participate in the supply chain financing program on an uncommitted basis and can cease purchasing receivables or drafts from Tenneco's suppliers at any time. If the financial institutions did not continue to purchase receivables or drafts from Tenneco's suppliers under these programs, the participating vendors may have a need to renegotiate their payment terms with Tenneco which in turn would cause our borrowings under our revolving credit facility to increase. Restricted Cash - Some of our Chinese subsidiaries that issue their own financial instruments to pay vendors are required to maintain a cash balance if they exceed credit limits with the financial institution that guarantees the financial instruments. A restricted cash balance was required at those Chinese subsidiaries for $2 million and $1 million at December 31, 2016 and December 31, 2015 , respectively.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The domestic and foreign components of our income before income taxes and noncontrolling interests are as follows: Year Ended December 31, 2016 2015 2014 (Millions) U.S. income before income taxes $ 68 $ 198 $ 130 Foreign income before income taxes 368 254 271 Income before income taxes and noncontrolling interests $ 436 $ 452 $ 401 Following is a comparative analysis of the components of income tax expense: Year Ended December 31, 2016 2015 2014 (Millions) Current — U.S. federal $ (7 ) $ 64 $ 38 State and local 4 5 3 Foreign 85 83 92 82 152 133 Deferred — U.S. federal (91 ) (1 ) 2 State and local (1 ) 1 7 Foreign 13 (3 ) (11 ) (79 ) (3 ) (2 ) Income tax expense $ 3 $ 149 $ 131 Following is a reconciliation of income taxes computed at the statutory U.S. federal income tax rate ( 35 percent for all years presented) to the income tax expense reflected in the statements of income: Year Ended December 31, 2016 2015 2014 (Millions) Income tax expense computed at the statutory U.S. federal income tax rate $ 152 $ 158 $ 140 Increases (reductions) in income tax expense resulting from: Foreign income taxed at different rates (43 ) (15 ) (21 ) Taxes on repatriation of dividends (105 ) 9 4 Remeasurement of estimated tax on unremitted earnings — (4 ) — State and local taxes on income, net of U.S. federal income tax benefit 3 11 8 Changes in valuation allowance for tax loss carryforwards and credits 18 13 12 Foreign tax holidays — (7 ) (6 ) Investment and R&D tax credits (6 ) (26 ) (10 ) Foreign earnings subject to U.S. federal income tax 4 3 7 Adjustment of prior years taxes — 2 (2 ) Tax contingencies (7 ) 4 — Other (13 ) 1 (1 ) Income tax expense $ 3 $ 149 $ 131 The components of our net deferred tax assets were as follows: Year Ended December 31, 2016 2015 (Millions) Deferred tax assets — Tax loss carryforwards: State $ 13 $ 14 Foreign 92 72 Tax credits 83 89 Postretirement benefits other than pensions 55 54 Pensions 48 50 Bad debts 3 2 Sales allowances 7 8 Payroll accruals 39 34 Other accruals 46 55 Valuation allowance (145 ) (127 ) Total deferred tax assets 241 251 Deferred tax liabilities — Tax over book depreciation 53 40 Total deferred tax liabilities 53 40 Net deferred tax assets $ 188 $ 211 State tax loss carryforwards have been presented net of uncertain tax positions that if realized, would reduce tax loss carryforwards in both 2016 and 2015 by $3 million . Additionally, foreign tax loss carryforwards, have been presented net of uncertain tax positions that if realized, would reduce tax loss carryforwards in 2016 and 2015 by $7 million and $13 million , respectively. Following is a reconciliation of deferred taxes to the deferred taxes shown in the balance sheet: Year Ended December 31, 2016 2015 (Millions) Balance Sheet: Non-current portion — deferred tax asset $ 195 $ 218 Non-current portion — deferred tax liability (7 ) (7 ) Net deferred tax assets $ 188 $ 211 As a result of the valuation allowances recorded for $145 million and $127 million at December 31, 2016 and 2015 , respectively, we have potential tax assets that were not recognized on our balance sheet. These unrecognized tax assets resulted primarily from foreign tax loss carryforwards, foreign investment tax credits, foreign research and development credits and U.S. state net operating losses that are available to reduce future tax liabilities. We reported income tax expense of $3 million , $149 million and $131 million in the years ended 2016 , 2015 and 2014 , respectively. The tax expense recorded in 2016 includes a net tax benefit of $110 million primarily relating to the recognition of a U.S. tax benefit for foreign taxes. In 2016, we completed our detailed analysis of our ability to recognize and utilize foreign tax credits within the carryforward period. As a result, we amended our U.S. federal tax returns for the years 2006 to 2012 to claim foreign tax credits in lieu of deducting foreign taxes paid. The U.S. foreign tax credit law provides for a credit against U.S. taxes otherwise payable for foreign taxes paid with regard to dividends, interest and royalties paid to us in the U.S. Income tax expense also decreased in 2016 as a result of the mix of earnings in our various tax jurisdictions. The tax expense recorded in 2015 includes a net tax benefit of $15 million primarily relating to prior year U.S. research and development tax credits, changes to uncertain tax positions, and prior year income tax adjustments. The tax expense recorded in 2014 includes a net tax benefit of $11 million for prior year tax adjustments primarily relating to changes to uncertain tax positions and prior year income tax estimates. We fully utilized our federal net operating loss ("NOL") prior to 2014 as a result of amending our U.S. federal tax returns for years 2006 to 2012 to claim foreign tax credits in lieu of deducting foreign taxes paid. The state NOLs expire in various tax years through 2031 . We do not provide for U.S. income taxes on unremitted earnings of foreign subsidiaries, except for the earnings of certain of our China operations, as our present intention is to reinvest the unremitted earnings in our foreign operations. Unremitted earnings of foreign subsidiaries were approximately $795 million at December 31, 2016 . We estimated that the amount of U.S. and foreign income taxes that would be accrued or paid upon remittance of the assets that represent those unremitted earnings was $159 million . The estimated U.S. and foreign income taxes on unremitted earnings may be impacted in the future if we are unable to claim a U.S. foreign tax credit. U.S. GAAP provides that a tax benefit from an uncertain tax position may be recognized when it is “more likely than not” that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes, based on the technical merits. A reconciliation of our uncertain tax positions is as follows: 2016 2015 2014 (Millions) Uncertain tax positions — Balance January 1 $ 123 $ 114 $ 115 Gross increases in tax positions in current period 6 7 8 Gross increases in tax positions in prior period 2 14 5 Gross decreases in tax positions in prior period (5 ) (4 ) (5 ) Gross decreases — settlements — (1 ) (2 ) Gross decreases — statute of limitations expired (15 ) (7 ) (7 ) Balance December 31 $ 111 $ 123 $ 114 Included in the balance of uncertain tax positions were $108 million in 2016 , $110 million in 2015 , $101 million in 2014 , of tax benefits, that if recognized, would affect the effective tax rate. We recognize accrued interest and penalties related to unrecognized tax benefits as income tax expense. Penalties of less than $1 million were accrued in 2016 , 2015 and 2014 . Additionally, we accrued interest expense related to uncertain tax positions of less than $1 million in 2016 , interest income of less than $1 million in 2015 , and interest expense of $1 million in 2014 . Our liability for penalties was $1 million at December 31, 2016 , $2 million at December 31, 2015 and $3 million at December 31, 2014 , respectively, and our liability for interest was $6 million at December 31, 2016 , 2015 and 2014 . Our uncertain tax position at December 31, 2016 and 2015 included exposures relating to the disallowance of deductions, global transfer pricing and various other issues. We believe it is reasonably possible that a decrease of up to $17 million in unrecognized tax benefits related to the expiration of U.S. and foreign statute of limitations and the conclusion of income tax examinations may occur within the next twelve months. We are subject to taxation in the U.S. and various state and foreign jurisdictions. As of December 31, 2016 , our tax years open to examination in primary jurisdictions are as follows: Open To Tax United States 2006 China 2006 Spain 2004 Canada 2013 Brazil 2011 Mexico 2011 Belgium 2014 Germany 2014 United Kingdom 2014

Common Stock

Common Stock	12 Months Ended
	Dec. 31, 2016
Text Block [Abstract]
Common Stock	Common Stock We have authorized 135 million shares ( $0.01 par value) of common stock, of which 65,891,930 shares and 65,067,132 shares were issued at December 31, 2016 and 2015 , respectively. We held 11,655,938 and 7,473,325 shares of treasury stock at December 31, 2016 and 2015 , respectively. Equity Plans — In December 1996, we adopted the 1996 Stock Ownership Plan, which permitted the granting of a variety of awards, including common stock, restricted stock, performance units, stock equivalent units, stock appreciation rights (“SARs”) and stock options to our directors, officers, employees and consultants. The 1996 plan, which terminated as to new awards on December 31, 2001, was renamed the “Stock Ownership Plan.” In December 1999, we adopted the Supplemental Stock Ownership Plan, which permitted the granting of a variety of similar awards to our directors, officers, employees and consultants. We were authorized to deliver up to about 1.1 million treasury shares of common stock under the Supplemental Stock Ownership Plan, which also terminated as to new awards on December 31, 2001. In March 2002, we adopted the 2002 Long-Term Incentive Plan which permitted the granting of a variety of similar awards to our officers, directors, employees and consultants. Up to 4 million shares of our common stock were authorized for delivery under the 2002 Long-Term Incentive Plan. In March 2006, we adopted the 2006 Long-Term Incentive Plan which replaced the 2002 Long-Term Incentive Plan and permits the granting of a variety of similar awards to directors, officers, employees and consultants. On May 13, 2009, our stockholders approved an amendment to the Tenneco Inc. 2006 Long-Term Incentive Plan to increase the shares of common stock available thereunder by 2.3 million . Each share underlying an award generally counts as one share against the total plan availability under the 2009 amendment, each share underlying a full value award (e.g. restricted stock), however, counts as 1.25 shares against the total plan availability. On May 15, 2013 our stockholders approved another amendment to the Tenneco Inc. 2006 Long-Term Incentive Plan to increase the shares of common stock available thereunder by 3.5 million . As part of this amendment, each share underlying a full value award subsequently issued counts as 1.49 shares against total plan availability. As of December 31, 2016 , up to 2,541,470 shares of our common stock remain authorized for delivery under the 2006 Long-Term Incentive Plan. Our nonqualified stock options have seven to 20 year terms and vest equally over a three -year service period from the date of the grant. We have granted restricted common stock and stock options to our directors and certain key employees and restricted stock units, payable in cash, to certain key employees. These awards generally require, among other things, that the award holder remain in service to our company during the restriction period, which is currently three years , with a portion of the award vesting equally each year. We have also granted stock equivalent units and long-term performance units to certain key employees that are payable in cash. At December 31, 2016 , the long-term performance units outstanding included a three -year grant for 2014-2016 payable in the first quarter of 2017, a three -year grant for 2015-2017 payable in the first quarter of 2018 and a three -year grant for 2016-2018 payable in the first quarter of 2019. Payment is based on the attainment of specified performance goals. Grant value is based on stock price, cumulative EBITDA and free cash flow metrics. In addition, we have granted SARs to certain key employees in our Asian and Indian operations that are payable in cash after a three -year service period. The grant value is indexed to the stock price. Accounting Methods — We have recorded compensation expense (net of taxes) of $1 million , $2 million , and $3 million in the years ended December 31, 2016 , 2015 and 2014 , respectively, related to nonqualified stock options as part of our selling, general and administrative expense. This resulted in a $0.01 decrease in basic and diluted earnings per share in 2016 , a $0.03 decrease in basic and diluted earnings per share in 2015 , and a $0.06 decrease in basic and diluted earnings per share in 2014 . For employees eligible to retire at the grant date, we immediately expense stock options and restricted stock. If employees become eligible to retire during the vesting period, we immediately recognize any remaining expense associated with their stock options and restricted stock. As of December 31, 2016 , there was less than $1 million of unrecognized compensation costs related to our stock options awards that we expect to recognize over a weighted average period of 0.1 years. Compensation expense for restricted stock, restricted stock units, long-term performance units and SARs (net of taxes) was $18 million , $12 million , and $13 million for each of the years ended 2016 , 2015 and 2014 , respectively, and was recorded in selling, general, and administrative expense on the consolidated statements of income. Cash received from stock option exercises was $16 million in 2016 , $4 million in 2015 , and $10 million in 2014 . Stock option exercises generated an excess tax benefit of $1 million in 2016 , $6 million in 2015 and $12 million in 2014 . Assumptions — We calculated the fair values of stock option awards using the Black-Scholes option pricing model with the weighted average assumptions listed below. The fair value of share-based awards is determined at the time the awards are granted which is generally in January of each year, and requires judgment in estimating employee and market behavior. There were no stock options granted in 2016 or 2015. 2016 2015 2014 Stock Options Granted: Weighted average grant date fair value, per share $ — $ — $ 26.46 Weighted average assumptions used: Expected volatility — % — % 52.8 % Expected lives 0.0 0.0 5.0 Risk-free interest rates — % — % 1.7 % Dividends yields — % — % — % Expected volatility is calculated based on current implied volatility and historical realized volatility for the Company. Expected lives of options are based upon the historical and expected time to post-vesting forfeiture and exercise. We believe this method is the best estimate of the future exercise patterns currently available. The risk-free interest rates are based upon the Constant Maturity Rates provided by the U.S. Treasury. For our valuations, we used the continuous rate with a term equal to the expected life of the options. Stock Options — The following table reflects the status and activity for all options to purchase common stock for the period indicated: Year Ended December 31, 2016 Shares Weighted Avg. Weighted Avg. Aggregate (Millions) Outstanding Stock Options: Outstanding, January 1, 2016 1,144,719 $ 34.69 3.6 $ 19 Exercised (19,192 ) 9.31 1 Outstanding, March 31, 2016 1,125,527 $ 35.12 3.5 $ 12 Forfeited (788 ) 51.88 Exercised (183,774 ) 23.07 5 Outstanding, June 30, 2016 940,965 $ 37.46 3.1 $ 14 Forfeited (3,183 ) 56.23 Exercised (178,455 ) 30.17 4 Outstanding, September 30, 2016 759,327 $ 39.13 2.8 $ 12 Canceled (4,499 ) 24.07 Exercised (148,303 ) 42.01 Outstanding, December 31, 2016 606,525 $ 38.54 2.6 $ 12 Of the outstanding 606,525 options, 560,238 are currently exercisable and have an intrinsic value of $12 million , a weighted average exercise price of $37.01 and a weighted average remaining life of 2.6 years . The weighted average grant-date fair value of options granted during the year 2014 was $26.48 . There were no stock options granted in 2016 or 2015. The total intrinsic value of options exercised during the years ended December 31, 2016 , 2015 , and 2014 was $11 million , $10 million and $30 million , respectively. The total fair value of shares vested was $4 million in 2016 and $6 million in both 2015 and 2014 , respectively. Restricted Stock — The following table reflects the status for all nonvested restricted shares for the period indicated: Year Ended December 31, 2016 Shares Weighted Avg. Nonvested Restricted Shares Nonvested balance at January 1, 2016 496,842 $ 51.65 Granted 347,398 35.98 Vested (156,109 ) 46.50 Nonvested balance at March 31, 2016 688,131 $ 44.90 Vested (20,221 ) 42.32 Forfeited (32,192 ) 53.91 Nonvested balance at June 30, 2016 635,718 $ 44.42 Granted 3,368 55.02 Vested (23,705 ) 37.37 Forfeited (3,485 ) 53.34 Nonvested balance at September 30, 2016 611,896 $ 44.70 Granted 3,038 55.45 Vested (1,999 ) 52.75 Forfeited (21,519 ) 47.46 Nonvested balance at December 31, 2016 591,416 $ 44.63 The fair value of restricted stock grants is equal to the average market price of our stock at the date of grant. As of December 31, 2016 , approximately $13 million of total unrecognized compensation costs related to restricted stock awards is expected to be recognized over a weighted-average period of approximately 1.9 years. The weighted average grant-date fair value of restricted stock granted during the years 2016 , 2015 and 2014 was $36.36 , $52.85 , and $55.26 , respectively. The total fair value of restricted shares vested was $9 million in 2016 , $7 million in 2015 and $8 million in 2014 . Share Repurchase Program — In January 2014, our Board of Directors approved a share repurchase program, authorizing our company to repurchase up to 400,000 shares of our outstanding common stock over a 12 month period. This share repurchase program was intended to offset dilution from shares of restricted stock and stock options issued in 2014 to employees. We purchased 400,000 shares through open market purchases, which were funded through cash from operations, at a total cost of $22 million , at an average price of $56.06 per share. These repurchased shares are held as part of our treasury stock which increased to 3,244,692 shares at December 31, 2014 from 2,844,692 shares at December 31, 2013. In January 2015, our Board of Directors approved a share repurchase program, authorizing our company to repurchase up to $350 million of our outstanding common stock over a three-year period. In October 2015, our Board of Directors expanded this share repurchase program, authorizing the repurchase of an additional $200 million of the Company’s outstanding common stock. We purchased 4,228,633 shares in 2015 through open market purchases, which were funded through cash from operations, at a total cost of $213 million , at an average price of $50.32 per share. These repurchased shares are held as part of our treasury stock which increased to 7,473,325 at December 31, 2015 from 3,244,692 at December 31, 2014 . We purchased 4,182,613 shares in 2016 through open market purchases, which were funded through cash from operations, at a total cost of $225 million , at an average price of $53.89 per share. These repurchased shares are held as part of our treasury stock which increased to 11,655,938 at December 31, 2016 from 7,473,325 at December 31, 2015 . In February 2017, our Board of Directors authorized the repurchase of up to $400 million of the Company's outstanding common stock over the next three years. This includes $112 million remaining amount authorized under earlier repurchase programs. The company anticipates acquiring the shares through open market or privately negotiated transactions, which will be funded through cash from operations. The repurchase program does not obligate the Company to repurchase shares within any specific time or situations, and opportunities in higher priority areas could affect the cadence of this program. Dividends —On February 1, 2017, our Board of Directors declared a quarterly cash dividend of $0.25 , payable on March 23, 2017 to shareholders of record as of March 7, 2017. Long-Term Performance Units, Restricted Stock Units and SARs — Long-term performance units, restricted stock units, and SARs are paid in cash and recognized as a liability based upon their fair value. As of December 31, 2016 , $22 million of total unrecognized compensation costs is expected to be recognized over a weighted-average period of approximately 1.8 years.

Preferred Stock

Preferred Stock	12 Months Ended
	Dec. 31, 2016
Text Block [Abstract]
Preferred Stock	Preferred Stock We had 50 million shares of preferred stock ( $0.01 par value) authorized at December 31, 2016 and 2015 , respectively. No shares of preferred stock were outstanding at those dates.

Pension Plans, Postretirement a

Pension Plans, Postretirement and Other Employee Benefits	12 Months Ended
	Dec. 31, 2016
Pension Plans, Postretirement and Other Employee Benefits	Pension Plans, Postretirement and Other Employee Benefits Pension benefits are based on years of service and, for most salaried employees, on average compensation. Our funding policy is to contribute to the plans amounts necessary to satisfy the funding requirement of applicable federal or foreign laws and regulations. Of our $710 million benefit obligation at December 31, 2016 , approximately $641 million required funding under applicable federal and foreign laws. The balance of our benefit obligation, $69 million , did not require funding under applicable federal or foreign laws and regulations. At December 31, 2016 , we had approximately $561 million in assets to fund that obligation. Pension plan assets were invested in the following classes of securities: Percentage of Fair Market Value December 31, 2016 December 31, 2015 US Foreign US Foreign Equity Securities 70 % 61 % 51 % 61 % Debt Securities 30 % 34 % 49 % 30 % Real Estate — 2 % — 2 % Other — 3 % — % 7 % The assets of some of our pension plans are invested in trusts that permit commingling of the assets of more than one employee benefit plan for investment and administrative purposes. Each of the plans participating in the trust has interests in the net assets of the underlying investment pools of the trusts. The investments for all our pension plans are recorded at estimated fair value, in compliance with the accounting guidance on fair value measurement. The following table presents our plan assets using the fair value hierarchy as of December 31, 2016 and 2015 , respectively. The fair value hierarchy has three levels based on the methods used to determine the fair value. Level 1 assets refer to those asset values based on quoted market prices in active markets for identical assets at the measurement date. Level 2 assets refer to assets with values determined using significant other observable inputs, and Level 3 assets include values determined with non-observable inputs. Fair Value Level as of December 31, 2016 US Foreign Asset Category Level 1 Level 2 Level 3 Assets Level 1 Level 2 Level 3 Assets (Millions) Equity securities: U.S. large cap $ 22 $ — $ — $ 77 $ 2 $ 30 $ — $ 26 U.S. mid cap — — — — 1 2 — — U.S. small cap — — — 15 — — — — Non-U.S. large cap — — — — 7 67 — 46 Non-U.S. mid cap — — — 15 — 15 — 8 Non-U.S. small cap — — — — — 10 — 1 Emerging markets — — — 5 2 3 — 1 Debt securities: U.S. treasuries/government bonds — — — — 1 — — — U.S. corporate bonds — — — 2 — 1 — — U.S. other fixed income — — — 54 — — — — Non-U.S. treasuries/government bonds — — — — 1 38 — 29 Non-U.S. corporate bonds — — — — 4 23 — 12 Non-U.S. municipal obligations — — — — — — — 1 Non-U.S. other fixed income — — — — 1 — — — Real Estate: Non-U.S. real estate — — — — 1 5 — — Other: Insurance contracts — — — — — 13 9 — Cash held in bank accounts 2 — — — 7 2 — — Total $ 24 $ — $ — $ 168 $ 27 $ 209 $ 9 $ 124 Fair Value Level as of December 31, 2015 US Foreign Asset Category Level 1 Level 2 Level 3 Asset Level 1 Level 2 Level 3 Asset (Millions) Equity securities: U.S. large cap $ 33 $ — $ — $ 63 $ 5 $ 24 $ — $ 23 U.S. mid cap — — — 8 1 5 — 2 U.S. small cap — — — 15 — — — — Non-U.S. large cap — — — — 13 65 — 34 Non-U.S. mid cap — — — 25 1 15 — 15 Non-U.S. small cap — — — — — 2 — 1 Emerging markets — — — 8 2 4 — — Debt securities: U.S. corporate bonds — — — 35 — 3 — — U.S. other fixed income — — — 113 — — — — Non-U.S. treasuries/government bonds — — — — 1 28 — 28 Non-U.S. corporate bonds — — — — 7 20 — 12 Non-U.S. mortgage backed securities — — — — — 3 — — Non-U.S. municipal obligations — — — — — — — 1 Non-U.S. asset backed securities — — — — — 2 — — Non-U.S. other fixed income — — — — 2 — — — Real Estate: Non-U.S. real estate — — — — 1 5 — 1 Other: Insurance contracts — — — — — 12 8 — Cash held in bank accounts 2 — — — 11 — — — Total $ 35 $ — $ — $ 267 $ 44 $ 188 $ 8 $ 117 Level 1 assets were valued using market prices based on daily net asset value (NAV) or prices available daily through a public stock exchange. Level 2 assets were valued primarily using market prices, sometimes net of estimated realization expenses, and based on broker/dealer markets or in commingled funds where NAV is not available daily or publicly. For insurance contracts, the estimated surrender value of the policy was used to estimate fair market value. Level 3 assets in the Netherlands were valued using an industry standard model based on certain assumptions such as the U-return and estimated technical reserve. The table below summarizes the changes in the fair value of the Level 3 assets: December 31, 2016 December 31, 2015 Level 3 Assets Level 3 Assets US Foreign US Foreign (Millions) (Millions) Balance at December 31 of the previous year $ — $ 8 $ — $ 9 Actual return on plan assets: Relating to assets still held at the reporting date — 1 — (1 ) Ending Balance at December 31 $ — $ 9 $ — $ 8 The following table contains information about significant concentrations of risk, including all individual assets that make up more than 5 percent of the total assets and any direct investments in Tenneco stock: Asset Category Fair Value Level Value Percentage of (Millions) 2016: Tenneco Stock 1 $ 22 4.0 % 2015: Tenneco Stock 1 $ 33 5.0 % Our investment policy for both our domestic and foreign plans is to invest more heavily in equity securities than debt securities. Targeted pension plan allocations are 70 percent in equity securities and 30 percent in debt securities, with acceptable tolerance levels of plus or minus five percent within each category for our domestic plans. Our foreign plans are individually managed to different target levels depending on the investing environment in each country. In December 2015, in anticipation of an offer to active employees and retirees in the U.S. to receive their pension benefit as a lump sum payment, we reallocated a portion of the U.S. pension plan asset portfolio to a lower percentage of equity securities and a higher percentage of debt securities, resulting in a change in the average composition of the domestic investment portfolio to 51 percent equity and 49 percent debt securities. At December 31, 2016, we reestablished the domestic pension plan asset portfolio back to the targeted mix of 70 percent equity and 30 percent debt securities. Our approach to determining expected return on plan asset assumptions evaluates both historical returns as well as estimates of future returns, and adjusts for any expected changes in the long-term outlook for the equity and fixed income markets for both our domestic and foreign plans. A summary of the change in benefit obligation, the change in plan assets, the development of net amount recognized, and the amounts recognized in the balance sheets for the pension plans and postretirement benefit plan follows: Pension Postretirement 2016 2015 2016 2015 US Foreign US Foreign US US (Millions) Change in benefit obligation: Benefit obligation at December 31 of the previous year $ 416 $ 425 $ 448 $ 483 $ 141 $ 143 Currency rate conversion — (38 ) — (45 ) — — Settlement (1 ) — (8 ) (2 ) — — Service cost 1 8 1 9 — — Interest cost 15 14 17 15 6 6 Administrative expenses/taxes paid — (1 ) — (2 ) — — Plan amendments — (1 ) — 2 — — Actuarial (gain)/loss (7 ) 50 (21 ) (17 ) 5 1 Benefits paid (152 ) (20 ) (21 ) (19 ) (9 ) (9 ) Participants’ contributions — 1 — 1 — — Benefit obligation at December 31 $ 272 $ 438 $ 416 $ 425 $ 143 $ 141 Change in plan assets: Fair value at December 31 of the previous year $ 304 $ 355 $ 334 $ 392 $ — $ — Currency rate conversion — (33 ) — (38 ) — — Settlement (1 ) — (8 ) (2 ) — — Actual return on plan assets 21 50 (11 ) 8 — — Administrative expenses/taxes paid — (1 ) — (2 ) — — Employer contributions 20 17 10 15 9 9 Participants’ contributions — 1 — 1 — — Benefits paid (152 ) (20 ) (21 ) (19 ) (9 ) (9 ) Fair value at December 31 $ 192 $ 369 $ 304 $ 355 $ — $ — Development of net amount recognized: Unfunded status at December 31 $ (80 ) $ (69 ) $ (114 ) $ (68 ) $ (143 ) $ (141 ) Unrecognized cost: Actuarial loss 146 145 232 144 48 49 Prior service cost/(credit) — 4 — 5 (4 ) (6 ) Net amount recognized at December 31 $ 66 $ 80 $ 118 $ 81 $ (99 ) $ (98 ) Amounts recognized in the balance sheets as of December 31 Noncurrent assets $ — $ 9 $ — $ 6 $ — $ — Current liabilities (20 ) (2 ) (2 ) (3 ) (10 ) (9 ) Noncurrent liabilities (60 ) (76 ) (112 ) (71 ) (133 ) (132 ) Net amount recognized $ (80 ) $ (69 ) $ (114 ) $ (68 ) $ (143 ) $ (141 ) Assets of one plan may not be utilized to pay benefits of other plans. Additionally, the prepaid (accrued) pension cost has been recorded based upon certain actuarial estimates as described below. Those estimates are subject to revision in future periods given new facts or circumstances. Net periodic pension costs for the years 2016 , 2015 and 2014 , consist of the following components: 2016 2015 2014 US Foreign US Foreign US Foreign (Millions) Service cost — benefits earned during the year $ 1 $ 8 $ 1 $ 9 $ 1 $ 8 Interest cost 15 14 17 15 20 18 Expected return on plan assets (23 ) (20 ) (23 ) (21 ) (25 ) (23 ) Settlement loss 72 — 4 — 21 — Net amortization: Actuarial loss 8 7 8 8 7 7 Prior service cost — 1 — 1 — 2 Net pension costs $ 73 $ 10 $ 7 $ 12 $ 24 $ 12 Amounts recognized in accumulated other comprehensive loss for pension benefits consist of the following components: 2016 2015 US Foreign US Foreign (Millions) Net actuarial loss $ 146 $ 145 $ 232 $ 144 Prior service cost — 4 — 5 $ 146 $ 149 $ 232 $ 149 Amounts recognized for pension and postretirement benefits in other comprehensive income for the year ended December 31, 2016 and 2015 include the following components: Year Ended December 31, 2016 2015 Before-Tax Tax Net-of-Tax Before-Tax Tax Net-of-Tax (Millions) Defined benefit pension and postretirement plans: Change in total actuarial gain (loss) $ 51 $ (21 ) $ 30 $ (7 ) $ 2 $ (5 ) Amortization of prior service cost included in net periodic pension and postretirement cost (1 ) — (1 ) (3 ) — (3 ) Amortization of actuarial gain (loss) included in net periodic pension and postretirement cost 20 (8 ) 12 23 (4 ) 19 Other comprehensive income — pension benefits $ 70 $ (29 ) $ 41 $ 13 $ (2 ) $ 11 In 2017 , we expect to recognize the following amounts, which are currently reflected in accumulated other comprehensive loss, as components of net periodic benefit cost: 2017 US Foreign (Millions) Net actuarial loss $ 10 $ 8 Prior service cost — 1 $ 10 $ 9 The projected benefit obligation, accumulated benefit obligation and fair value of plan assets for all pension plans with accumulated benefit obligations in excess of plan assets at December 31, 2016 and 2015 were as follows: December 31, 2016 December 31, 2015 US Foreign US Foreign (Millions) Projected benefit obligation $ 272 $ 266 $ 416 $ 337 Accumulated benefit obligation 272 261 416 332 Fair value of plan assets 192 188 302 262 The following estimated benefit payments are payable from the pension plans to participants: Year US Foreign (Millions) 2017 $ 33 $ 15 2018 14 15 2019 15 16 2020 16 18 2021 15 17 2022-2026 77 95 The following assumptions were used in the accounting for the pension plans for the years of 2016 , 2015 , and 2014 : 2016 2015 US Foreign US Foreign Weighted-average assumptions used to determine benefit obligations Discount rate 4.2 % 2.8 % 4.3 % 3.5 % Rate of compensation increase N/A 2.5 % N/A 2.7 % 2016 2015 2014 US Foreign US Foreign US Foreign Weighted-average assumptions used to determine net periodic benefit cost Discount rate 4.3 % 3.5 % 4.1 % 3.2 % 4.8 % 4.3 % Expected long-term return on plan assets 7.6 % 5.7 % 7.8 % 5.9 % 7.8 % 6.1 % Rate of compensation increase N/A 2.7 % N/A 3.0 % N/A 3.3 % We made contributions of $37 million to our pension plans during 2016 . Based on current actuarial estimates, we believe we will be required to make contributions of $32 million to those plans during 2017 . Pension contributions beyond 2017 will be required, but those amounts will vary based upon many factors, including the performance of our pension fund investments during 2017 and future discount rate changes. The Company announced and launched a voluntary program offering to buyout former employees vested in the U.S. pension plan during the third quarter of 2014. The process was completed in the fourth quarter of 2014. Based on participant responses, more than 60% of the former employees who were eligible to participate received a buyout. This resulted in a non-cash charge of $21 million . The cash payments to those former employees who elected to take the buyout were made from the pension plan's assets and did not impact the company's cash flow. This program reduced the outstanding U.S. pension liability by approximately $50 million . In February 2016, the Company launched a voluntary program to buy out active employees and retirees who have earned benefits in the U.S. pension plans. As of December 31, 2016, this program has been substantially completed with cash payments to those who elected to take the buyout made from pension plan assets in the fourth quarter of 2016. In connection with this program the Company contributed $18 million into the pension trust and recognized a non-cash charge of $72 million . We expect to complete the program in the first quarter of 2017, at which time we will contribute another $9 million and recognize a non-cash charge of approximately $6 million . We have life insurance plans which provided benefit to a majority of our U.S. employees. We also have postretirement plans for our U.S. employees hired before January 1, 2001. The plans cover salaried employees retiring on or after attaining age 55 who have at least 10 years of service with us. For hourly employees, the postretirement benefit plans generally cover employees who retire according to one of our hourly employee retirement plans. All of these benefits may be subject to deductibles, co-payment provisions and other limitations, and we have reserved the right to change these benefits. For those employees hired after January 1, 2001, we do not provide any postretirement benefits. Our postretirement healthcare and life insurance plans are not funded. The measurement date used to determine postretirement benefit obligations is December 31. Net periodic postretirement benefit cost for the years 2016 , 2015 , and 2014 , consists of the following components: 2016 2015 2014 (Millions) Service cost — benefits earned during the year $ — $ — $ — Interest on accumulated postretirement benefit obligation 6 6 6 Net amortization: Actuarial loss 5 6 4 Prior service credit (1 ) (4 ) (7 ) Prior period correction — — 9 Net periodic postretirement benefit cost $ 10 $ 8 $ 12 In the fourth quarter of 2014, we recorded an $11 million adjustment to our postretirement medical expense as a result of approximately 170 retirees who were entitled to benefits but had not been included in the prior year calculations of net periodic postretirement benefit cost. In 2017 , we expect to recognize the following amounts, which are currently reflected in accumulated other comprehensive loss, as components of net periodic benefit cost: 2017 (Millions) Net actuarial loss $ 5 Prior service credit (1 ) $ 4 The following estimated postretirement benefit payments are payable from the plan to participants: Year Postretirement (Millions) 2017 $ 10 2018 10 2019 10 2020 10 2021 9 2022-2026 45 We do not expect to receive any future subsidies under the Medicare Prescription Drug, Improvement, and Modernization Act. The weighted-average assumed health care cost trend rate used in determining the 2016 accumulated postretirement benefit obligation was 7.0 percent , declining to 4.5 percent by 2026. For 2015 , the health care cost trend rate was 7.0 percent declining to 4.5 percent by 2026 and for 2014 , the health care cost trend rate was 6.5 percent declining to 4.5 percent by 2019. The following assumptions were used in the accounting for postretirement cost for the years of 2016 , 2015 and 2014 : 2016 2015 Weighted-average assumptions used to determine benefit obligations Discount rate 4.2 % 4.3 % Rate of compensation increase N/A N/A 2016 2015 2014 Weighted-average assumptions used to determine net periodic benefit cost Discount rate 4.3 % 4.1 % 4.8 % Rate of compensation increase N/A N/A N/A A one-percentage-point increase in the 2016 assumed health care cost trend rates would increase total service and interest cost by $1 million and would increase the postretirement benefit obligation by $15 million . A one-percentage-point decrease in the 2016 assumed health care cost trend rates would decrease the total service and interest cost by $1 million and decrease the postretirement benefit obligation by $12 million . Based on current actuarial estimates, we believe we will be required to make postretirement contributions of approximately $10 million during 2017 . Effective January 1, 2012, the Tenneco Employee Stock Ownership Plan for Hourly Employees and the Tenneco Employee Stock Ownership Plan for Salaried Employees were merged into one plan called the Tenneco 401(k) Retirement Savings Plan (the “Retirement Savings Plan”). Under the plan, subject to limitations in the Internal Revenue Code, participants may elect to defer up to 75 percent of their salary through contributions to the plan, which are invested in selected mutual funds or used to buy our common stock. We match 100 percent of an employee's contributions up to three percent of the employee's salary and 50 percent of an employee's contributions that are between three percent and five percent of the employee's salary. In connection with freezing the defined benefit pension plans for nearly all U.S. based salaried and non-union hourly employees effective December 31, 2006, and the related replacement of those defined benefit plans with defined contribution plans, we are making additional contributions to the Employee Stock Ownership Plans. We recorded expense for these contributions of approximately $28 million , $27 million and $25 million in 2016 , 2015 and 2014 , respectively. Matching contributions vest immediately. Defined benefit replacement contributions fully vest on the employee’s third anniversary of employment.

Segment and Geographic Area Inf

Segment and Geographic Area Information	12 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Segment and Geographic Area Information	Segment and Geographic Area Information We are organized and manage our business along our two major product lines (clean air and ride performance) and three geographic areas (North America; Europe, South America and India; and Asia Pacific), resulting in six operating segments (North America Clean Air, North America Ride Performance, Europe, South America and India Clean Air, Europe, South America and India Ride Performance, Asia Pacific Clean Air and Asia Pacific Ride Performance). Within each geographical area, each operating segment manufactures and distributes either clean air or ride performance products primarily for the original equipment and aftermarket industries. Each of the six operating segments constitutes a reportable segment. Costs related to other business activities, primarily corporate headquarter functions, are disclosed separately from the six operating segments as "Other." We evaluate segment performance based primarily on earnings before interest expense, income taxes, and noncontrolling interests. Products are transferred between segments and geographic areas on a basis intended to reflect as nearly as possible the "market value" of the products. Segment results for 2016 , 2015 and 2014 are as follows: Clean Air Division Ride Performance Division North Europe, South America & India Asia North Europe, South America & India Asia Other Reclass & Elims Total (Millions) At December 31, 2016, and for the Year Ended Revenues from external customers $ 3,003 $ 1,989 $ 1,077 $ 1,234 $ 1,019 $ 277 $ — $ — $ 8,599 Intersegment revenues 13 92 3 9 26 46 — (189 ) — EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests 225 103 150 157 25 56 (188 ) — 528 Total assets 1,356 734 647 723 570 265 — 47 4,342 At December 31, 2015, and for the Year Ended Revenues from external customers $ 2,851 $ 1,835 $ 1,037 $ 1,313 $ 944 $ 229 $ — $ — $ 8,209 Intersegment revenues 16 100 — 10 28 46 — (200 ) — EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests 244 52 121 155 (5 ) 39 (87 ) — 519 Total assets 1,209 713 596 692 499 226 — 32 3,967 At December 31, 2014, and for the Year Ended Revenues from external customers $ 2,815 $ 1,974 $ 1,022 $ 1,351 $ 1,032 $ 226 $ — $ — $ 8,420 Intersegment revenues 25 114 — 10 38 43 — (230 ) — EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests 237 59 101 143 40 36 (124 ) — 492 Total assets 1,156 789 593 659 503 227 — 69 3,996 The following table shows information relating to our external customer revenues for each product or each group of similar products: Net Sales 2016 2015 2014 (Millions) Clean Air Products & Systems Aftermarket $ 305 $ 318 $ 318 Original Equipment OE Value-add 3,736 3,489 3,559 OE Substrate 2,028 1,916 1,934 5,764 5,405 5,493 6,069 5,723 5,811 Ride Performance Products & Systems Aftermarket 937 941 976 Original Equipment 1,593 1,545 1,633 2,530 2,486 2,609 Total Revenues $ 8,599 $ 8,209 $ 8,420 The following customers accounted for 10 percent or more of our net sales in the last three years. The net sales to both customers were across segments. Customer 2016 2015 2014 General Motors Company 17 % 15 % 15 % Ford Motor Company 13 % 13 % 13 % The following table shows information relating to the geographic regions in which we operate: Geographic Area United China Germany Canada United Other Reclass & Consolidated (Millions) At December 31, 2016, and for the Year Then Ended Revenues from external customers(b) $ 3,512 $ 1,186 $ 764 $ 387 $ 387 $ 2,363 $ — $ 8,599 Long-lived assets(c) 541 217 111 44 38 518 — $ 1,469 Total assets 1,897 791 231 166 130 1,275 (148 ) $ 4,342 At December 31, 2015, and for the Year Then Ended Revenues from external customers(b) $ 3,362 $ 1,101 $ 807 $ 387 $ 307 $ 2,245 $ — $ 8,209 Long-lived assets(c) 496 203 108 41 32 476 — $ 1,356 Total assets 1,726 696 258 146 101 1,156 (116 ) $ 3,967 At December 31, 2014, and for the Year Then Ended Revenues from external customers(b) $ 3,348 $ 1,079 $ 955 $ 413 $ 235 $ 2,390 $ — $ 8,420 Long-lived assets(c) 473 192 113 52 27 494 — 1,351 Total assets 1,696 683 319 164 68 1,221 (155 ) 3,996 (a) Revenues from external customers and long-lived assets for individual foreign countries other than China, Germany, Canada, and United Kingdom are not material. (b) Revenues are attributed to countries based on location of the shipper. (c) Long-lived assets include all long-term assets except goodwill, intangibles and deferred tax assets.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Capital Commitments We estimate that expenditures aggregating approximately $112 million will be required after December 31, 2016 to complete facilities and projects authorized at such date, and we have made substantial commitments in connection with these facilities and projects. Lease Commitments We have long-term leases for certain facilities, equipment and other assets. The minimum lease payments under our non-cancelable operating leases with lease terms in excess of one year are $39 million in 2017 , $25 million in 2018 , $18 million in 2019 , $15 million in 2020 , and $12 million in 2021 and $17 million in subsequent years. The minimum lease payments under our non-cancelable capital leases with lease terms in excess of one year are less than $1 million in each of the next five years. Total rental expense for the year 2016 , 2015 and 2014 was $65 million , $61 million and $64 million , respectively. Environmental Matters, Legal Proceedings and Product Warranties We are involved in environmental remediation matters, legal proceedings, claims, investigations and warranty obligations. These matters are typically incidental to the conduct of our business and create the potential for contingent losses. We accrue for potential contingent losses when our review of available facts indicates that it is probable a loss has been incurred and the amount of the loss is reasonably estimable. Each quarter we assess our loss contingencies based upon currently available facts, existing technology, presently enacted laws and regulations and taking into consideration the likely effects of inflation and other societal and economic factors and record adjustments to these reserves as required. As an example, we consider all available evidence including prior experience in remediation of contaminated sites, other companies’ cleanup experiences and data released by the United States Environmental Protection Agency or other organizations when we evaluate our environmental remediation contingencies. All of our loss contingency estimates are subject to revision in future periods based on actual costs or new information. With respect to our environmental liabilities, where future cash flows are fixed or reliably determinable, we have discounted those liabilities. We evaluate recoveries separately from the liability and, when they are assured, recoveries are recorded and reported separately from the associated liability in our consolidated financial statements. Environmental Matters We are subject to a variety of environmental and pollution control laws and regulations in all jurisdictions in which we operate. We expense or capitalize, as appropriate, expenditures for ongoing compliance with environmental regulations that relate to current operations. We expense costs related to an existing condition caused by past operations that do not contribute to current or future revenue generation. As of December 31, 2016 , we have the obligation to remediate or contribute towards the remediation of certain sites, including one Federal Superfund site. At December 31, 2016 , our aggregated estimated share of environmental remediation costs for all these sites on a discounted basis was approximately $15 million , of which $2 million is recorded in other current liabilities and $13 million is recorded in deferred credits and other liabilities in our consolidated balance sheet. For those locations where the liability was discounted, the weighted average discount rate used was 2.4 percent . The undiscounted value of the estimated remediation costs was $18 million . Our expected payments of environmental remediation costs are estimated to be approximately $2 million in 2017 , $1 million each year beginning 2018 through 2021 and $12 million in aggregate thereafter. Based on information known to us, we have established reserves that we believe are adequate for these costs. Although we believe these estimates of remediation costs are reasonable and are based on the latest available information, the costs are estimates and are subject to revision as more information becomes available about the extent of remediation required. At some sites, we expect that other parties will contribute to the remediation costs. In addition, certain environmental statutes provide that our liability could be joint and several, meaning that we could be required to pay in excess of our share of remediation costs. Our understanding of the financial strength of other potentially responsible parties at these sites has been considered, where appropriate, in our determination of our estimated liability. We do not believe that any potential costs associated with our current status as a potentially responsible party in the Federal Superfund site, or as a liable party at the other locations referenced herein, will be material to our consolidated financial position, results of operations, or liquidity. Antitrust Investigations and Litigation On March 25, 2014, representatives of the European Commission 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 March 25, 2014, we also received a related subpoena from the U.S. Department of Justice (“DOJ”). On November 5, 2014, the DOJ granted us conditional leniency pursuant to an agreement we entered into under the Antitrust Division’s Corporate Leniency Policy. This agreement provides us with important benefits in exchange for our self reporting of matters to the DOJ and our continuing full cooperation with the DOJ’s resulting investigation. For example, the DOJ will not bring any criminal antitrust prosecution against us, nor seek any criminal fines or penalties, in connection with the matters we reported to the DOJ. Additionally, there are limits on our liability related to any follow on civil antitrust litigation in the U.S. 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 our satisfying the DOJ and any court presiding over such follow on civil litigation. Certain other competition agencies are also investigating possible violations of antitrust laws relating to products supplied by our company. We have cooperated and continue to cooperate fully with all of these antitrust investigations, and take other actions to minimize our potential exposure. Tenneco and certain of its competitors are also currently defendants in civil putative class action litigation in the United States. 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 we received conditional leniency from the DOJ, our civil liability in these follow on actions is limited to single damages and we will not be jointly and severally liable with the other defendants, provided that we have satisfied our obligations under the DOJ leniency agreement and approval is granted by the presiding court. Antitrust law investigations, civil litigation, and related matters often continue for several years and can result in significant penalties and liability. We intend to vigorously defend the company and/or take other actions to minimize our potential exposure. In light of the many uncertainties and variables involved, we cannot estimate the ultimate impact that these matters may have on our company. Further, there can be no assurance that the ultimate resolution of these matters will not have a material adverse effect on our consolidated financial position, results of operations or liquidity. Other Legal Proceedings, Claims and Investigations We are also from time to time involved in other legal proceedings, claims or investigations. Some of these matters involve allegations of damages against us 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 we vigorously defend ourselves against all of these legal proceedings, claims and investigations and take other actions to minimize our potential exposure, in future periods, we 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 our assessment of the merits of the particular claim, except as described above under "Antitrust Investigations," we do not expect the legal proceedings, claims or investigations currently pending against us will have any material adverse impact on our consolidated financial position, results of operations or liquidity. In addition, for many years we have been and continue to be subject to lawsuits initiated by claimants alleging health problems as a result of exposure to asbestos. Our current docket of active and inactive cases is less than 500 cases nationwide. A small number of claims have been asserted against one of our subsidiaries by railroad workers alleging exposure to asbestos products in railroad cars. The substantial majority of the remaining claims are related to alleged exposure to asbestos in our automotive products although a significant number of those claims appear also to involve occupational exposures sustained in industries other than automotive. We believe, based on scientific and other evidence, it is unlikely that claimants were exposed to asbestos by our 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. As major asbestos manufacturers and/or users continue to go out of business or file for bankruptcy, we may experience an increased number of these claims. We vigorously defend ourselves against these claims as part of our ordinary course of business. In future periods, we could be subject to cash costs or charges to earnings if any of these matters are resolved unfavorably to us. To date, with respect to claims that have proceeded sufficiently through the judicial process, we have regularly achieved favorable resolutions. Accordingly, we presently believe that these asbestos-related claims will not have a material adverse impact on our future consolidated financial position, results of operations or liquidity. Warranty Matters We provide warranties on some of our products. The warranty terms vary but range from one year up to limited lifetime warranties on some of our 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 our products. These estimates are established using historical information about the nature, frequency, and average cost of warranty claims. We actively study trends of our warranty claims and take action to improve product quality and minimize warranty claims. We believe that 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 balance sheet. Below is a table that shows the activity in the warranty accrual accounts: Year Ended 2016 2015 2014 (Millions) Beginning Balance $ 23 $ 26 $ 24 Accruals related to product warranties 12 15 24 Reductions for payments made (15 ) (18 ) (22 ) Ending Balance $ 20 $ 23 $ 26

Supplemental Guarantor Condense

Supplemental Guarantor Condensed Consolidating Financial Statements	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Supplemental Guarantor Condensed Consolidating Financial Statements	Supplemental Guarantor Condensed Consolidating Financial Statement Basis of Presentation Substantially all of our existing and future material domestic 100% owned subsidiaries (which are referred to as the Guarantor Subsidiaries) fully and unconditionally guarantee our senior notes due in 2024 and 2026 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, our investments are recorded at cost and adjusted for our 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 our condensed consolidated financial statements and related notes of which this note is an integral part. Distributions There are no significant restrictions on the ability of the Guarantor Subsidiaries to make distributions to us. STATEMENT OF COMPREHENSIVE INCOME (LOSS) For the Year Ended December 31, 2016 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Revenues Net sales and operating revenues — External $ 3,865 $ 4,734 $ — $ — $ 8,599 Affiliated companies 526 747 — (1,273 ) — 4,391 5,481 — (1,273 ) 8,599 Costs and expenses Cost of sales (exclusive of depreciation and amortization shown below) 3,715 4,669 — (1,273 ) 7,111 Engineering, research, and development 76 78 — — 154 Selling, general, and administrative 311 277 1 — 589 Depreciation and amortization of other intangibles 86 126 — — 212 4,188 5,150 1 (1,273 ) 8,066 Other income (expense) Loss on sale of receivables (2 ) (3 ) — — (5 ) Other income (expense) (9 ) 24 — (15 ) — (11 ) 21 — (15 ) (5 ) Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income from affiliated companies 192 352 (1 ) (15 ) 528 Interest expense — External (net of interest capitalized) (2 ) 4 90 — 92 Affiliated companies (net of interest income) (12 ) 7 5 — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies 206 341 (96 ) (15 ) 436 Income tax expense (benefit) (95 ) 98 3 Equity in net income (loss) from affiliated companies 170 — 459 (629 ) — Net income (loss) 471 243 363 (644 ) 433 Less: Net income attributable to noncontrolling interests — 70 — 70 Net income (loss) attributable to Tenneco Inc. $ 471 $ 173 $ 363 $ (644 ) $ 363 Comprehensive income (loss) attributable to Tenneco Inc. $ 471 $ 173 $ 363 $ (644 ) $ 363 STATEMENT OF COMPREHENSIVE INCOME (LOSS) For the Year Ended December 31, 2015 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Revenues Net sales and operating revenues — External $ 3,711 $ 4,498 $ — $ — $ 8,209 Affiliated companies 411 558 — (969 ) — 4,122 5,056 — (969 ) 8,209 Costs and expenses Cost of sales (exclusive of depreciation and amortization shown below) 3,442 4,372 — (969 ) 6,845 Engineering, research, and development 70 76 — — 146 Selling, general, and administrative 193 295 3 — 491 Depreciation and amortization of other intangibles 87 116 — — 203 3,792 4,859 3 (969 ) 7,685 Other income (expense) Loss on sale of receivables (1 ) (3 ) — — (4 ) Other income (expense) 41 6 — (48 ) (1 ) 40 3 — (48 ) (5 ) Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income from affiliated companies 370 200 (3 ) (48 ) 519 Interest expense — External (net of interest capitalized) (2 ) 3 66 — 67 Affiliated companies (net of interest income) 54 (56 ) 2 — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies 318 253 (71 ) (48 ) 452 Income tax expense 43 106 — — 149 Equity in net income (loss) from affiliated companies 84 — 318 (402 ) — Net income (loss) 359 147 247 (450 ) 303 Less: Net income attributable to noncontrolling interests — 56 — — 56 Net income (loss) attributable to Tenneco Inc. $ 359 $ 91 $ 247 $ (450 ) $ 247 Comprehensive income (loss) attributable to Tenneco Inc. $ 359 $ 91 $ 127 $ (450 ) $ 127 STATEMENT OF COMPREHENSIVE INCOME (LOSS) For the Year Ended December 31, 2014 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Revenues Net sales and operating revenues — External $ 3,727 $ 4,693 $ — $ — $ 8,420 Affiliated companies 403 602 — (1,005 ) — 4,130 5,295 — (1,005 ) 8,420 Costs and expenses Cost of sales (exclusive of depreciation and amortization shown below) 3,391 4,639 — (1,005 ) 7,025 Engineering, research, and development 81 88 — — 169 Selling, general, and administrative 211 302 6 — 519 Depreciation and amortization of other intangibles 86 122 — — 208 3,769 5,151 6 (1,005 ) 7,921 Other income (expense) Loss on sale of receivables — (4 ) — — (4 ) Other income (expense) 26 9 — (38 ) (3 ) 26 5 — (38 ) (7 ) Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income from affiliated companies 387 149 (6 ) (38 ) 492 Interest expense — External (net of interest capitalized) (1 ) 4 88 — 91 Affiliated companies (net of interest income) 73 (75 ) 2 — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies 315 220 (96 ) (38 ) 401 Income tax expense 94 37 — — 131 Equity in net income (loss) from affiliated companies 129 — 322 (451 ) — Net income (loss) 350 183 226 (489 ) 270 Less: Net income attributable to noncontrolling interests — 44 — — 44 Net income (loss) attributable to Tenneco Inc. $ 350 $ 139 $ 226 $ (489 ) $ 226 Comprehensive income (loss) attributable to Tenneco Inc. $ 350 $ 139 $ 41 $ (489 ) $ 41 BALANCE SHEET December 31, 2016 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) ASSETS Current assets: Cash and cash equivalents $ 9 $ 338 $ — $ — $ 347 Restricted cash — 2 — — 2 Receivables, net 386 1,412 — (504 ) 1,294 Inventories 361 369 — — 730 Prepayments and other 62 167 — — 229 Total current assets 818 2,288 — (504 ) 2,602 Other assets: Investment in affiliated companies 1,221 — 1,222 (2,443 ) — Notes and advances receivable from affiliates 939 16,529 4,781 (22,249 ) — Long-term receivables, net 9 — — — 9 Goodwill 22 35 — — 57 Intangibles, net 7 12 — — 19 Deferred income taxes 47 19 129 — 195 Other 46 49 8 — 103 2,291 16,644 6,140 (24,692 ) 383 Plant, property, and equipment, at cost 1,371 2,177 — — 3,548 Less — Accumulated depreciation and amortization (895 ) (1,296 ) — — (2,191 ) 476 881 — — 1,357 Total assets $ 3,585 $ 19,813 $ 6,140 $ (25,196 ) $ 4,342 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Short-term debt (including current maturities of long-term debt) Short-term debt — non-affiliated $ — $ 75 $ 15 $ — $ 90 Short-term debt — affiliated 167 187 — (354 ) — Accounts payable 557 1,027 — (88 ) 1,496 Accrued taxes 6 35 — — 41 Other 147 243 15 (62 ) 343 Total current liabilities 877 1,567 30 (504 ) 1,970 Long-term debt — non-affiliated — 12 1,282 — 1,294 Long-term debt — affiliated 1,543 16,466 4,240 (22,249 ) — Deferred income taxes — 7 — — 7 Postretirement benefits and other liabilities 297 92 — — 389 Commitments and contingencies Total liabilities 2,717 18,144 5,552 (22,753 ) 3,660 Redeemable noncontrolling interests — 43 — — 43 Tenneco Inc. Shareholders’ equity 868 1,575 588 (2,443 ) 588 Noncontrolling interests — 51 — — 51 Total equity 868 1,626 588 (2,443 ) 639 Total liabilities, redeemable noncontrolling interests and equity $ 3,585 $ 19,813 $ 6,140 $ (25,196 ) $ 4,342 BALANCE SHEET December 31, 2015 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) ASSETS Current assets: Cash and cash equivalents $ 2 $ 285 $ — $ — $ 287 Restricted cash — 1 — — 1 Receivables, net 299 1,241 — (428 ) 1,112 Inventories 333 349 — — 682 Prepayments and other 67 162 — — 229 Total current assets 701 2,038 — (428 ) 2,311 Other assets: Investment in affiliated companies 1,146 — 893 (2,039 ) — Notes and advances receivable from affiliates 938 13,291 4,788 (19,017 ) — Long-term receivables, net 11 2 — — 13 Goodwill 22 38 — — 60 Intangibles, net 9 13 — — 22 Deferred income taxes 122 28 68 — 218 Pension Assets — — — — — Other 42 47 11 — 100 2,290 13,419 5,760 (21,056 ) 413 Plant, property, and equipment, at cost 1,281 2,137 — — 3,418 Less — Accumulated depreciation and amortization (851 ) (1,324 ) — — (2,175 ) 430 813 — — 1,243 Total assets $ 3,421 $ 16,270 $ 5,760 $ (21,484 ) $ 3,967 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term debt (including current maturities of long-term debt) Short-term debt — non-affiliated $ — $ 73 $ 13 $ — $ 86 Short-term debt — affiliated 164 147 — (311 ) — Accounts payable 484 955 — (63 ) 1,376 Accrued taxes 6 31 — — 37 Other 125 221 3 (54 ) 295 Total current liabilities 779 1,427 16 (428 ) 1,794 Long-term debt — non-affiliated — 21 1,103 — 1,124 Long-term debt — affiliated 1,583 13,226 4,208 (19,017 ) — Deferred income taxes — 7 — — 7 Postretirement benefits and other liabilities 424 100 — — 524 Commitments and contingencies Total liabilities 2,786 14,781 5,327 (19,445 ) 3,449 Redeemable noncontrolling interests — 43 — — 43 Tenneco Inc. Shareholders’ equity 635 1,404 433 (2,039 ) 433 Noncontrolling interests — 42 — — 42 Total equity 635 1,446 433 (2,039 ) 475 Total liabilities, redeemable noncontrolling interests and equity $ 3,421 $ 16,270 $ 5,760 $ (21,484 ) $ 3,967 STATEMENT OF CASH FLOWS Year Ended December 31, 2016 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Operating Activities Net cash provided (used) by operating activities $ 176 $ 300 $ 28 $ (15 ) $ 489 Investing Activities Proceeds from sale of assets — 6 — — 6 Cash payments for plant, property, and equipment (117 ) (208 ) — — (325 ) Cash payments for software related intangible assets (13 ) (7 ) — — (20 ) Change in restricted cash — (1 ) — — (1 ) Net cash used by investing activities (130 ) (210 ) — — (340 ) Financing Activities Retirement of long-term debt — (16 ) (515 ) — (531 ) Issuance of long-term debt — 9 500 — 509 Debt issuance cost on long-term debt — — (9 ) — (9 ) Tax impact from stock-based compensation — — (10 ) — (10 ) Purchase of common stock under the share repurchase program — — (225 ) — (225 ) Issuance of common shares — — 18 — 18 Increase in bank overdrafts — 10 — — 10 Net increase in revolver borrowings and short-term debt excluding current maturities of long-term debt — 5 197 — 202 Intercompany dividends and net increase (decrease) in intercompany obligations (39 ) 8 16 15 — Distribution to noncontrolling interests partners — (55 ) — — (55 ) Net cash provided (used) by financing activities (39 ) (39 ) (28 ) 15 (91 ) Effect of foreign exchange rate changes on cash and cash equivalents — 2 — — 2 Increase in cash and cash equivalents 7 53 — — 60 Cash and cash equivalents, January 1 2 285 — — 287 Cash and cash equivalents, December 31 (Note) $ 9 $ 338 $ — $ — $ 347 Note: Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase. STATEMENT OF CASH FLOWS Year Ended December 31, 2015 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Operating Activities Net cash provided (used) by operating activities $ 204 $ 311 $ 49 $ (47 ) $ 517 Investing Activities Proceeds from sale of assets — 4 — — 4 Cash payments for plant, property, and equipment (114 ) (172 ) — — (286 ) Cash payments for software related intangible assets (16 ) (7 ) — — (23 ) Change in restricted cash — 2 — — 2 Net cash used by investing activities (130 ) (173 ) — — (303 ) Financing Activities Retirement of long-term debt — (22 ) (15 ) — (37 ) Issuance of long-term debt — 1 — — 1 Debt issuance cost on long-term debt — — (1 ) — (1 ) Tax impact from stock-based compensation — — 6 — 6 Purchase of common stock under the share repurchase program — — (213 ) — (213 ) Issuance of common shares — — 6 — 6 Increase in bank overdrafts — (22 ) — — (22 ) Net increase in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable — 20 82 — 102 Net increase (decrease) in short-term borrowings secured by accounts receivable — — 30 — 30 Intercompany dividends and net increase (decrease) in intercompany obligations (82 ) (21 ) 56 47 — Distribution to noncontrolling interests partners — (44 ) — — (44 ) Net cash provided (used) by financing activities (82 ) (88 ) (49 ) 47 (172 ) Effect of foreign exchange rate changes on cash and cash equivalents — (37 ) — — (37 ) Increase (decrease) in cash and cash equivalents (8 ) 13 — — 5 Cash and cash equivalents, January 1 10 272 — — 282 Cash and cash equivalents, December 31 (Note) $ 2 $ 285 $ — $ — $ 287 Note: Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase. STATEMENT OF CASH FLOWS Year Ended December 31, 2014 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Operating Activities Net cash provided (used) by operating activities $ 44 $ 314 $ 21 $ (38 ) $ 341 Investing Activities Proceeds from sale of assets — 3 — — 3 Cash payments for plant, property, and equipment (106 ) (222 ) — — (328 ) Cash payments for software related intangible assets (5 ) (8 ) — — (13 ) Cash payments for net assets purchased (3 ) — — — (3 ) Change in restricted cash — 2 — — 2 Net cash used by investing activities (114 ) (225 ) — — (339 ) Financing Activities Retirement of long-term debt — (9 ) (453 ) — (462 ) Issuance of long-term debt — 45 525 — 570 Debt issuance cost on long-term debt — — (12 ) — (12 ) Tax impact from stock-based compensation — — 26 — 26 Purchase of common stock under the share repurchase program — — (22 ) — (22 ) Issuance of common shares — — 19 — 19 Increase in bank overdrafts — 6 — — 6 Net decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable — (13 ) (57 ) — (70 ) Net decrease in short-term borrowings secured by accounts receivable — — (10 ) — (10 ) Intercompany dividends and net increase (decrease) in intercompany obligations 74 (75 ) (37 ) 38 — Capital contribution from noncontrolling interest partner — 5 — — 5 Distribution to noncontrolling interests partners — (30 ) — — (30 ) Net cash provided (used) by financing activities 74 (71 ) (21 ) 38 20 Effect of foreign exchange rate changes on cash and cash equivalents — (15 ) — — (15 ) Increase in cash and cash equivalents 4 3 — — 7 Cash and cash equivalents, January 1 6 269 — — 275 Cash and cash equivalents, December 31 (Note) $ 10 $ 272 $ — $ — $ 282 Note: Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase.

Subsequent Events Subsequent Ev

Subsequent Events Subsequent Events	12 Months Ended
	Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Change in Reportable Segments On February 7, 2017, the Company announced that we will be making a change in our reportable segments. Our Clean Air and Ride Performance product lines in India, which have been reported as part of the Europe, South America and India segments, will now be reported with their respective product lines in the Asia Pacific segments, effective with the first quarter of 2017. Such changes will bring the high growth markets in both India and China under the Asia Pacific segments. The change in reportable segments comes as a result of the change to the chief operating decision maker, who will assess business performance and allocation of resources through this structure. Dividend On February 1, 2017, our Board of Directors declared a cash dividend of $0.25 , payable on March 23, 2017 to shareholders of record as of March 7, 2017.

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (Unaudited)	Quarterly Financial Data (Unaudited) Quarter Net Sales Cost of Sales Earnings Before Net Income (Millions) 2016 1st $ 2,136 $ 1,770 $ 124 $ 57 2nd 2,212 1,810 177 86 3rd 2,096 1,741 152 180 4th 2,155 1,790 75 40 $ 8,599 $ 7,111 $ 528 $ 363 2015 1st $ 2,023 $ 1,686 $ 120 $ 49 2nd 2,130 1,764 155 78 3rd 2,025 1,707 116 52 4th 2,031 1,688 128 68 $ 8,209 $ 6,845 $ 519 $ 247 Quarter Basic Diluted 2016 1st $ 1.00 $ 0.99 2nd 1.51 1.49 3rd 3.24 3.21 4th 0.74 0.73 Full Year 6.49 6.44 2015 1st $ 0.81 $ 0.80 2nd 1.27 1.26 3rd 0.89 0.88 4th 1.18 1.17 Full Year 4.14 4.11 Note: The sum of the quarters may not equal the total of the respective year’s earnings per share on either a basic or diluted basis due to changes in the weighted average shares outstanding throughout the year. (The preceding notes are an integral part of the foregoing consolidated financial statements.)

VALUATION AND QUALIFYING ACCOUN

VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Dec. 31, 2016
Valuation and Qualifying Accounts [Abstract]
VALUATION AND QUALIFYING ACCOUNTS	SCHEDULE II TENNECO INC. AND CONSOLIDATED SUBSIDIARIES SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS Additions Description Balance Charged Charged Deductions Balance (Millions) Allowance for Doubtful Accounts and Notes Receivable Deducted from Assets to Which it Applies: Year Ended December 31, 2016 $ 16 1 — 1 $ 16 Year Ended December 31, 2015 $ 16 4 — 4 $ 16 Year Ended December 31, 2014 $ 14 4 — 2 $ 16 Description Balance Provision Charged (Credited) to Expense Allowance Changes Other Additions (Deductions) Balance (Millions) Deferred Tax Assets- Valuation Allowance Year Ended December 31, 2016 $ 127 18 — — $ 145 Year Ended December 31, 2015 $ 139 15 (3 ) (24 ) $ 127 Year Ended December 31, 2014 $ 135 15 (3 ) (8 ) $ 139

Summary of Accounting Policies

Summary of Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Consolidation and Presentation	Consolidation and Presentation Our consolidated financial statements include all majority-owned subsidiaries. We carry investments in 20 percent to 50 percent owned companies in which the Company does not have a controlling interest, as equity method investments, at cost plus equity in undistributed earnings since the date of acquisition and cumulative translation adjustments. We have eliminated intercompany transactions. We have evaluated all subsequent events through the date our financial statements were issued.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. These estimates include among others, allowances for doubtful receivables, promotional and product returns, income taxes, pension and postretirement benefit plans, and contingencies.
Redeemable Noncontrolling Interests	Redeemable Noncontrolling Interests We have noncontrolling interests in five joint ventures with redemption features that could require us to purchase the noncontrolling interests at fair value in the event of a change in control of Tenneco Inc. or certain of our subsidiaries. We do not believe that it is probable that the redemption features in any of these joint venture agreements will be triggered. However, the redemption of these shares is not solely within our control. Accordingly, the related noncontrolling interests are presented as “Redeemable noncontrolling interests” in the temporary equity section of our consolidated balance sheets.
Inventories	Our inventories are stated at the lower of cost or market value using the first-in, first-out (“FIFO”) or average cost methods.
Goodwill and Intangibles, net	Goodwill and Intangibles, net We evaluate goodwill for impairment in the fourth quarter of each year, or more frequently if events indicate it is warranted. The goodwill impairment test consists of a two-step process. In step one, we compare the estimated fair value of our reporting units with goodwill to the carrying value of the unit’s assets and liabilities to determine if impairment exists within the recorded balance of goodwill. We estimate the fair value of each reporting unit using the income approach which is based on the present value of estimated future cash flows. The income approach is dependent on a number of factors, including estimates of market trends, forecasted revenues and expenses, capital expenditures, weighted average cost of capital and other variables. A separate discount rate derived by a combination of published sources, internal estimates and weighted based on our debt to equity ratio, was used to calculate the discounted cash flows for each of our reporting units. These estimates are based on assumptions that we believe to be reasonable, but which are inherently uncertain and outside of the control of management. If the carrying value of the reporting unit is higher than its fair value, there is an indication that impairment may exist which requires step two to be performed to measure the amount of the impairment loss. The amount of impairment is determined by comparing the implied fair value of a reporting unit’s goodwill to its carrying value.
Plant, Property, and Equipment, at Cost	We depreciate these properties excluding land on a straight-line basis over the estimated useful lives of the assets. Useful lives range from 10 to 50 years for buildings and improvements and from 3 to 25 years for machinery and equipment.
Notes and Accounts Receivable and Allowance for Doubtful Accounts	Notes and Accounts Receivable and Allowance for Doubtful Accounts Receivables consist of amounts billed and currently due from customers and unbilled pre-production design and development costs.
Pre-production Design and Development and Tooling Assets	Pre-production Design and Development and Tooling Assets We expense pre-production design and development costs as incurred unless we have a contractual guarantee for reimbursement from the original equipment customer.
Internal Use Software Assets	Internal Use Software Assets We capitalize certain costs related to the purchase and development of software that we use in our business operations. We amortize the costs attributable to these software systems over their estimated useful lives, ranging from 3 to 12 years, based on various factors such as the effects of obsolescence, technology, and other economic factors.
Income Taxes	Income Taxes We recognize deferred tax assets and liabilities on the basis of the future tax consequences attributable to temporary differences that exist between the financial statement carrying value of assets and liabilities and their respective tax values, and net operating losses ("NOL") and tax credit carryforwards on a taxing jurisdiction basis. We measure deferred tax assets and liabilities using enacted tax rates that will apply in the years in which we expect the temporary differences to be recovered or paid. We evaluate our deferred income taxes quarterly to determine if valuation allowances are required or should be adjusted. U.S. GAAP requires that companies assess whether valuation allowances should be established against their deferred tax assets based on consideration of all available evidence, both positive and negative, using a “more likely than not” standard. 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. Valuation allowances have been established in certain foreign jurisdictions for deferred tax assets based on a “more likely than not” threshold. The ability to realize deferred tax assets depends on our ability to generate sufficient taxable income within the carryforward periods provided for in the tax law for each tax jurisdiction. We have considered the following possible sources of taxable income when assessing the realization of our deferred tax assets: • Future reversals of existing taxable temporary differences; • Taxable income or loss, based on recent results, exclusive of reversing temporary differences and carryforwards; • Tax-planning strategies; and • Taxable income in prior carryback years if carryback is permitted under the relevant tax law. The valuation allowances recorded against deferred tax assets generated by taxable losses in foreign jurisdictions will impact our provision for income taxes until the valuation allowances are released. Our provision for income taxes will include no tax benefit for losses incurred and no tax expense with respect to income generated in these jurisdictions until the respective valuation allowance is eliminated.
Revenue Recognition	Revenue Recognition We recognize revenue for sales to our original equipment and aftermarket customers when title and risk of loss passes to the customers under the terms of our arrangements with those customers, which is usually at the time of shipment from our plants or distribution centers. Generally, in connection with the sale of exhaust systems to certain original equipment manufacturers, we purchase catalytic converters and diesel particulate filters or components thereof including precious metals (“substrates”) on behalf of our customers which are used in the assembled system. These substrates are included in our inventory and “passed through” to the customer at our cost, plus a small margin, since we take title to the inventory and are responsible for both the delivery and quality of the finished product. Revenues recognized for substrate sales were $2,028 million , $1,916 million and $1,934 million in 2016 , 2015 and 2014 , respectively. For our aftermarket customers, we provide for promotional incentives and returns at the time of sale. Estimates are based upon the terms of the incentives and historical experience with returns. Certain taxes assessed by governmental authorities on revenue producing transactions, such as value added taxes, are excluded from revenue and recorded on a net basis. Shipping and handling costs billed to customers are included in revenues and the related costs are included in cost of sales in our consolidated statements of income (loss).
Warranty Reserves	Warranty Reserves Where we have offered product warranty, we also provide for warranty costs. Provisions for estimated expenses related to product warranty are made at the time products are sold or when specific warranty issues are identified on OE products. These estimates are established using historical information about the nature, frequency, and average cost of warranty claims and upon specific warranty issues as they arise. The warranty terms vary but range from one year up to limited lifetime warranties on some of our premium aftermarket products. We actively study trends of our warranty claims and take action to improve product quality and minimize warranty claims. While we have not experienced any material differences between these estimates and our actual costs, it is reasonably possible that future warranty issues could arise that could have a significant impact on our consolidated financial statements.
Earnings Per Share	Earnings Per Share We compute basic earnings per share by dividing income available to common shareholders by the weighted-average number of common shares outstanding. The computation of diluted earnings per share is similar to the computation of basic earnings per share, except that we adjust the weighted-average number of shares outstanding to include estimates of additional shares that would be issued if potentially dilutive common shares had been issued. In addition, we adjust income available to common shareholders to include any changes in income or loss that would result from the assumed issuance of the dilutive common shares.
Engineering, Research and Development	Engineering, Research and Development We expense engineering, research, and development costs as they are incurred. Engineering, research, and development expenses were $154 million for 2016 , $146 million for 2015 , and $169 million for 2014 , net of reimbursements from our customers. Our customers reimburse us for engineering, research, and development costs on some platforms when we prepare prototypes and incur costs before platform awards.
Advertising and Promotion Expenses	Advertising and Promotion Expenses We expense advertising and promotion expenses as they are incurred.
Foreign Currency Translation	Foreign Currency We translate the consolidated financial statements of foreign subsidiaries into U.S. dollars using the exchange rate at each balance sheet date for assets and liabilities and a weighted-average exchange rate for revenues and expenses in each period. We record translation adjustments for those subsidiaries whose local currency is their functional currency as a component of accumulated other comprehensive income (loss) in shareholders’ equity. We recognize transaction gains and losses arising from fluctuations in currency exchange rates on transactions denominated in currencies other than the functional currency in earnings as incurred, except for those intercompany balances which are designated as long-term investments.
Risk Management Activities	We use derivative financial instruments, principally foreign currency forward purchase and sales contracts with terms of less than one year, to hedge our exposure to changes in foreign currency exchange rates. Our primary exposure to changes in foreign currency rates results from intercompany loans made between affiliates to minimize the need for borrowings from third parties. Additionally, we enter into foreign currency forward purchase and sale contracts to mitigate our exposure to changes in exchange rates on certain intercompany and third-party trade receivables and payables. We manage counter-party credit risk by entering into derivative financial instruments with major financial institutions that can be expected to fully perform under the terms of such agreements. We do not enter into derivative financial instruments for speculative purposes. In managing our foreign currency exposures, we identify and aggregate existing offsetting positions and then hedge residual exposures through third-party derivative contracts. The fair value of our foreign currency forward contracts was a net liability position of less than $1 million at December 31, 2016 and a net asset position of $1 million at December 31, 2015 and is based on an internally developed model which incorporates observable inputs including quoted spot rates, forward exchange rates and discounted future expected cash flows utilizing market interest rates with similar quality and maturity characteristics. We record the change in fair value of these foreign exchange forward contracts as part of currency gains (losses) within cost of sales in the consolidated statements of income (loss). The fair value of foreign exchange forward contracts are recorded in prepayments and other current assets or other current liabilities in the consolidated balance sheet.
New Accounting Pronouncements	New Accounting Pronouncements In November 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update 2016-18, Statement of Cash Flows - Restricted Cash (Topic 230) to eliminate diversity in practice in the presentation of restricted cash and restricted cash equivalents in the statement of cash flows. For public business entities, the standard is effective for financial statements issued for annual periods beginning after December 15, 2017, and interim periods within those annual periods. The adoption of this guidance is not expected to have a material impact on the Company's consolidated financial statements. In October 2016, the FASB issued Accounting Standard Update 2016-16, Income Taxes - Intra Entity Transfers of Assets Other Than Inventory (Topic 740). The new standard changes the accounting for income taxes when a company transfers certain tangible and intangible assets, such as equipment or intellectual property, between entities in different tax jurisdictions. The new standard does not change the current accounting for the income taxes related to transfers of inventory. For public business entities, the standard is effective for financial statements issued for annual periods beginning after December 15, 2017, and interim periods within those annual periods. The adoption of this guidance is not expected to have a material impact on the Company's consolidated financial statements. In March 2016, the FASB issued Accounting Standard Update 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, as part of its initiative to reduce complexity in accounting standards. The areas for simplification in this update involve several aspects of the accounting for employee share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. For public business entities, the standard is effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods. The adoption of this guidance is not expected to have a material impact on the Company's consolidated financial statements. In February 2016, the FASB issued Accounting Standard Update 2016-02, Leases (Topic 842). The amendments in this update create Topic 842, Leases, and supersede the leases requirements in Topic 840, Leases. Topic 842 specifies the accounting for 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 flow 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. We will adopt this amendment on January 1, 2019. We are currently evaluating the potential impact of this new guidance on the Company's consolidated financial statements. In May 2015, the FASB issued Accounting Standard Update (ASU) No. 2015-07, Disclosures for Investments in Certain Entities that Calculate Net Asset Value per Share (or Its Equivalent). ASU No. 2015-07 removes the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using the net asset value per share practical expedient. Such investments should be disclosed separate from the fair value hierarchy. For public business entities, the standard is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The adoption of this guidance does not have an impact on the Company's consolidated financial statements but will impact pension asset disclosure. In May 2014, the FASB issued an amendment on revenue recognition. The amendment in this update creates Topic 606, Revenue from Contracts with Customers, and supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, including most industry-specific revenue recognition guidance throughout the Industry Topics of the Codification. In addition, the amendment supersedes the cost guidance in Subtopic 605-35, Revenue Recognition-Construction-Type and Production-Type Contracts, and creates new Subtopic 340-40, Other Assets and Deferred Costs-Contracts with Customers. The core principle of Topic 606 is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The FASB approved a one-year deferral of the effective date from January 1, 2017 to January 1, 2018, while allowing for early adoption as of January 1, 2017 for public entities. We will adopt this amendment on January1, 2018. The guidance permits the use of either the retrospective or modified retrospective (cumulative effect) transition method and we have not yet selected which transition method we will apply. We have established a cross-functional coordinated team to implement the guidance related to the recognition of revenue from contracts with customers. We are in the process of assessing our customer contracts, identifying contractual provisions that may result in a change in the timing or the amount of revenue recognized in comparison with current guidance, as well as assessing the enhanced disclosure requirements of the new guidance. Under current guidance we generally recognize revenue when products are shipped and risk of loss has transferred to the customer. Under the proposed requirements, the customized nature of some of our products combined with contractual provisions that provide us with an enforceable right to payment, may require us to recognize revenue prior to the product being shipped to the customer. We are also assessing pricing provisions contained in certain of our customer contracts. Pricing provisions contained in some of our customer contracts represent variable consideration or may provide the customer with a material right, potentially resulting in a different allocation of the transaction price than under current guidance. In addition, we are evaluating how the new guidance may impact our accounting for contractually guaranteed reimbursements related to customer tooling, engineering services and pre-production costs. Under the current applicable guidance, these customer reimbursements are recorded as cost recovery offsets; whereas under the new standard these guaranteed recoveries may represent consideration from contracts with customers and be recorded as revenues. We continue to evaluate the impact this guidance will have on our financial statements.
Restricted Net Assets	Restricted Net Assets In certain countries where we operate, transfers of funds out of such countries by way of dividends, loans or advances are subject to certain central bank restrictions which require approval from the central bank authorities prior to transferring funds out of these countries. The countries in which we operate that have such restrictions include China, South Africa, and Thailand.

Summary of Accounting Policie24

Summary of Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Redeemable Noncontrolling Interests	The following is a rollforward of activity in our redeemable noncontrolling interests for the years ending December 31, 2016 , 2015 and 2014 , respectively: 2016 2015 2014 (Millions) Balance January 1 $ 43 $ 35 $ 20 Net income attributable to redeemable noncontrolling interests 37 33 23 Sale of 45 percent equity interest from Tenneco Inc — — 4 Capital Contributions — — 1 Other comprehensive loss (2 ) (1 ) — Dividends declared (35 ) (24 ) (13 ) Balance December 31 $ 43 $ 43 $ 35
Inventories by Major Classification	Inventories At December 31, 2016 and 2015 , inventory by major classification was as follows: 2016 2015 (Millions) Finished goods $ 284 $ 257 Work in process 245 233 Raw materials 137 135 Materials and supplies 64 57 $ 730 $ 682
Changes in Net Carrying Amount of Goodwill	The changes in the net carrying amount of goodwill for the years ended December 31, 2016 , 2015 and 2014 were as follows: Clean Air Division Ride Performance Division North Europe, South America & India Asia North Europe, South America & India Asia Total (Millions) Balance at December 31, 2014 $ 14 $ 12 $ — $ 10 $ 29 $ — $ 65 Translation Adjustment — (1 ) — — (4 ) — (5 ) Balance at December 31, 2015 14 11 — 10 25 — 60 Translation Adjustment — — — — (3 ) — (3 ) Balance at December 31, 2016 14 11 — 10 22 — 57
Carrying Amount and Accumulated Amortization of Finite Useful Life Intangible Assets	The carrying amount and accumulated amortization of our finite useful life intangible assets were as follows: December 31, 2016 December 31, 2015 Gross Carrying Accumulated Gross Carrying Accumulated (Millions) (Millions) Customer contract $ 8 $ (5 ) $ 8 $ (4 ) Patents 1 (1 ) 2 (2 ) Technology rights 29 (21 ) 29 (19 ) Other 9 (1 ) 10 (2 ) Total $ 47 $ (28 ) $ 49 $ (27 )
Property, Plant and Equipment	At December 31, 2016 and 2015 , plant, property, and equipment, at cost, by major category were as follows: 2016 2015 (Millions) Land, buildings, and improvements $ 568 $ 561 Machinery and equipment 2,638 2,569 Other, including construction in progress 342 288 $ 3,548 $ 3,418

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Summary of Earnings Per Share of Common Stock	Earnings per share of common stock outstanding were computed as follows: Year Ended December 31, 2016 2015 2014 (Millions Except Share and Per Share Amounts) Basic earnings per share — Net income attributable to Tenneco Inc. $ 363 $ 247 $ 226 Average shares of common stock outstanding 55,939,135 59,678,309 60,734,022 Earnings per average share of common stock $ 6.49 $ 4.14 $ 3.72 Diluted earnings per share — Net income attributable to Tenneco Inc. $ 363 $ 247 $ 226 Average shares of common stock outstanding 55,939,135 59,678,309 60,734,022 Effect of dilutive securities: Restricted stock 175,513 96,168 130,732 Stock options 292,788 418,673 917,754 Average shares of common stock outstanding including dilutive securities 56,407,436 60,193,150 61,782,508 Earnings per average share of common stock $ 6.44 $ 4.11 $ 3.66

Restructuring and Other Charg26

Restructuring and Other Charges (Tables)	12 Months Ended
	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Roll Forward of Restructuring Reserve	Amounts related to activities that are part of our restructuring plans are as follows: December 31, 2016 2016 Impact of Exchange Rates December 31, (Millions) Employee Severance, Termination Benefits and Other Related Costs $ 30 30 (45 ) — $ 15

Long-Term Debt, Short-Term De27

Long-Term Debt, Short-Term Debt, and Financing Arrangements (Tables)	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Summary of Long-term Debt Obligations	A summary of our long-term debt obligations at December 31, 2016 and 2015 , is set forth in the following table: 2016 2015 (Millions) Tenneco Inc. — Revolver borrowings due 2019, average effective interest rate 2.3% in 2016 and 2.0% in 2015 $ 300 $ 105 Senior Tranche A Term Loan due 2017 through 2020, average effective interest rate 2.2% in 2016 and 1.9% in 2015 270 285 5 3/8% Senior Notes due 2024 225 225 5% Senior Notes due 2026 500 — 6 7/8% Senior Notes due 2020 — 500 Other subsidiaries — Other Long Term Debt due in 2019, average interest rate 1.7% in 2016 and 6.55% in 2016 7 15 Notes due 2017 through 2027, average effective interest rate 0.2% in 2016 and 0.1% in 2015 8 7 1,310 1,137 Less — maturities classified as current 3 1 Total long-term debt $ 1,307 $ 1,136
Summary of Short-term Debt Obligations	Information regarding our short-term debt as of and for the years ended December 31, 2016 and 2015 is as follows: 2016 2015 (Millions) Maturities classified as current $ 3 $ 1 Short-term borrowings 87 85 Total short-term debt $ 90 $ 86 Notes Payable(a) 2016 2015 (Dollars in Millions) Outstanding borrowings at end of year $ 87 $ 85 Weighted average interest rate on outstanding borrowings at end of year(b) 2.8 % 3.2 % Maximum month-end outstanding borrowings during year $ 193 $ 178 Average month-end outstanding borrowings during year $ 177 $ 118 Weighted average interest rate on average month-end outstanding borrowings during year(b) 2.4 % 3.0 % (a) Includes borrowings under both committed credit facilities and uncommitted lines of credit and similar arrangements. (b) This calculation does not include the commitment fees to be paid on the unused revolving credit facility balances which are recorded as interest expense for accounting purposes.
Financing Arrangements	Financing Arrangements Committed Credit Facilities(a) as of December 31, 2016 Term Commitments Borrowings Letters of Credit(b) Available (Millions) Tenneco Inc. revolving credit agreement 2019 $ 1,200 $ 300 $ — $ 900 Tenneco Inc. tranche A term facility 2019 270 270 — — Subsidiaries’ credit agreements 2017-2027 128 89 — 39 $ 1,598 $ 659 $ — $ 939 (a) We generally are required to pay commitment fees on the unused portion of the total commitment. (b) Letters of credit reduce the available borrowings under the revolving credit agreement.
Financial Ratios under Senior Credit Facility	The financial ratios required under the amended and restated senior credit facility and the actual ratios we achieved for the four quarters of 2016 , are as follows: Quarter Ended December 31, September 30, June 30, March 31, Req. Act. Req. Act. Req. Act. Req. Act. Leverage Ratio (maximum) 3.50 1.45 3.50 1.52 3.50 1.45 3.50 1.54 Interest Coverage Ratio (minimum) 2.75 14.92 2.75 14.26 2.75 13.93 2.75 13.90
Proforma Consolidated Leverage Ratio	So long as no default existed, we would, however, under our senior credit facility agreement, be permitted to repay or refinance our senior notes (i) with the net cash proceeds of permitted refinancing indebtedness (as defined in the senior credit facility agreement) or with the net cash proceeds of our common stock in each case issued within 180 days prior to such repayment; (ii) with the net cash proceeds of the incremental facilities (as defined in the senior credit facility agreement) and certain indebtedness incurred by our foreign subsidiaries; (iii) with the proceeds of the revolving loans (as defined in the senior credit facility agreement); (iv) with the cash generated by our operations; (v) in an amount equal to the net cash proceeds of qualified capital stock (as defined in the senior credit facility agreement) issued by us after December 8, 2014; and (vi) in exchange for permitted refinancing indebtedness or in exchange for shares of our common stock; provided that such purchases are capped as follows (with respect to clauses (iii), (iv) and (v) based on a pro forma consolidated leverage ratio after giving effect to such purchase, cancellation or redemption): Pro forma Consolidated Aggregate Senior (Millions) Greater than or equal to 3.0x $ 20 Greater than or equal to 2.5x $ 100 Greater than or equal to 2.0x $ 200 Less than 2.0x no limit

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2016
Disclosure Financial Instruments Additional Information [Abstract]
Carrying and Estimated Fair Value	The carrying and estimated fair values of our financial instruments by class at December 31, 2016 and 2015 were as follows: December 31, 2016 December 31, 2015 Carrying Fair Carrying Fair (Millions) Long-term debt (including current maturities) $ 1,297 $ 1,311 $ 1,125 $ 1,160 Instruments with off-balance sheet risk: Foreign exchange forward contracts: Asset derivative contracts — — 1 1
Summarization for Foreign Currency Forward Purchase and Sale Contracts	The following table summarizes by major currency the notional amounts for foreign currency forward purchase and sale contracts as of December 31, 2016 (all of which mature in 2017 ): Notional Amount (Millions) British pounds —Purchase 9 Canadian dollars —Sell (2 ) European euro —Purchase 21 —Sell (3 ) Japanese yen —Purchase 388 —Sell (60 ) South African rand —Purchase 131 —Sell (17 ) U.S. dollars —Purchase 5 —Sell (45 )

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income before Income Taxes and Noncontrolling Interests	The domestic and foreign components of our income before income taxes and noncontrolling interests are as follows: Year Ended December 31, 2016 2015 2014 (Millions) U.S. income before income taxes $ 68 $ 198 $ 130 Foreign income before income taxes 368 254 271 Income before income taxes and noncontrolling interests $ 436 $ 452 $ 401
Comparative Analysis of Components of Income Tax Expense	Following is a comparative analysis of the components of income tax expense: Year Ended December 31, 2016 2015 2014 (Millions) Current — U.S. federal $ (7 ) $ 64 $ 38 State and local 4 5 3 Foreign 85 83 92 82 152 133 Deferred — U.S. federal (91 ) (1 ) 2 State and local (1 ) 1 7 Foreign 13 (3 ) (11 ) (79 ) (3 ) (2 ) Income tax expense $ 3 $ 149 $ 131
Reconciliation of Income Taxes Computed at Statutory U.S. Federal Income Tax Rate to Income Tax Expense	Following is a reconciliation of income taxes computed at the statutory U.S. federal income tax rate ( 35 percent for all years presented) to the income tax expense reflected in the statements of income: Year Ended December 31, 2016 2015 2014 (Millions) Income tax expense computed at the statutory U.S. federal income tax rate $ 152 $ 158 $ 140 Increases (reductions) in income tax expense resulting from: Foreign income taxed at different rates (43 ) (15 ) (21 ) Taxes on repatriation of dividends (105 ) 9 4 Remeasurement of estimated tax on unremitted earnings — (4 ) — State and local taxes on income, net of U.S. federal income tax benefit 3 11 8 Changes in valuation allowance for tax loss carryforwards and credits 18 13 12 Foreign tax holidays — (7 ) (6 ) Investment and R&D tax credits (6 ) (26 ) (10 ) Foreign earnings subject to U.S. federal income tax 4 3 7 Adjustment of prior years taxes — 2 (2 ) Tax contingencies (7 ) 4 — Other (13 ) 1 (1 ) Income tax expense $ 3 $ 149 $ 131
Components of Our Net Deferred Tax Assets	The components of our net deferred tax assets were as follows: Year Ended December 31, 2016 2015 (Millions) Deferred tax assets — Tax loss carryforwards: State $ 13 $ 14 Foreign 92 72 Tax credits 83 89 Postretirement benefits other than pensions 55 54 Pensions 48 50 Bad debts 3 2 Sales allowances 7 8 Payroll accruals 39 34 Other accruals 46 55 Valuation allowance (145 ) (127 ) Total deferred tax assets 241 251 Deferred tax liabilities — Tax over book depreciation 53 40 Total deferred tax liabilities 53 40 Net deferred tax assets $ 188 $ 211
Reconciliation of Deferred Taxes to Deferred Taxes Shown In Balance Sheet	Following is a reconciliation of deferred taxes to the deferred taxes shown in the balance sheet: Year Ended December 31, 2016 2015 (Millions) Balance Sheet: Non-current portion — deferred tax asset $ 195 $ 218 Non-current portion — deferred tax liability (7 ) (7 ) Net deferred tax assets $ 188 $ 211
Reconciliation of our Uncertain Tax Positions	A reconciliation of our uncertain tax positions is as follows: 2016 2015 2014 (Millions) Uncertain tax positions — Balance January 1 $ 123 $ 114 $ 115 Gross increases in tax positions in current period 6 7 8 Gross increases in tax positions in prior period 2 14 5 Gross decreases in tax positions in prior period (5 ) (4 ) (5 ) Gross decreases — settlements — (1 ) (2 ) Gross decreases — statute of limitations expired (15 ) (7 ) (7 ) Balance December 31 $ 111 $ 123 $ 114
Tax Years Open to Examination in Primary Jurisdictions	We are subject to taxation in the U.S. and various state and foreign jurisdictions. As of December 31, 2016 , our tax years open to examination in primary jurisdictions are as follows: Open To Tax United States 2006 China 2006 Spain 2004 Canada 2013 Brazil 2011 Mexico 2011 Belgium 2014 Germany 2014 United Kingdom 2014

Common Stock (Tables)

Common Stock (Tables)	12 Months Ended
	Dec. 31, 2016
Text Block [Abstract]
Assumptions Used for Calculating Fair Values of Stock Option Awards	The fair value of share-based awards is determined at the time the awards are granted which is generally in January of each year, and requires judgment in estimating employee and market behavior. There were no stock options granted in 2016 or 2015. 2016 2015 2014 Stock Options Granted: Weighted average grant date fair value, per share $ — $ — $ 26.46 Weighted average assumptions used: Expected volatility — % — % 52.8 % Expected lives 0.0 0.0 5.0 Risk-free interest rates — % — % 1.7 % Dividends yields — % — % — %
Stock Options Status and Activity	The following table reflects the status and activity for all options to purchase common stock for the period indicated: Year Ended December 31, 2016 Shares Weighted Avg. Weighted Avg. Aggregate (Millions) Outstanding Stock Options: Outstanding, January 1, 2016 1,144,719 $ 34.69 3.6 $ 19 Exercised (19,192 ) 9.31 1 Outstanding, March 31, 2016 1,125,527 $ 35.12 3.5 $ 12 Forfeited (788 ) 51.88 Exercised (183,774 ) 23.07 5 Outstanding, June 30, 2016 940,965 $ 37.46 3.1 $ 14 Forfeited (3,183 ) 56.23 Exercised (178,455 ) 30.17 4 Outstanding, September 30, 2016 759,327 $ 39.13 2.8 $ 12 Canceled (4,499 ) 24.07 Exercised (148,303 ) 42.01 Outstanding, December 31, 2016 606,525 $ 38.54 2.6 $ 12
Nonvested Restricted Shares	The following table reflects the status for all nonvested restricted shares for the period indicated: Year Ended December 31, 2016 Shares Weighted Avg. Nonvested Restricted Shares Nonvested balance at January 1, 2016 496,842 $ 51.65 Granted 347,398 35.98 Vested (156,109 ) 46.50 Nonvested balance at March 31, 2016 688,131 $ 44.90 Vested (20,221 ) 42.32 Forfeited (32,192 ) 53.91 Nonvested balance at June 30, 2016 635,718 $ 44.42 Granted 3,368 55.02 Vested (23,705 ) 37.37 Forfeited (3,485 ) 53.34 Nonvested balance at September 30, 2016 611,896 $ 44.70 Granted 3,038 55.45 Vested (1,999 ) 52.75 Forfeited (21,519 ) 47.46 Nonvested balance at December 31, 2016 591,416 $ 44.63

Pension Plans, Postretirement31

Pension Plans, Postretirement and Other Employee Benefits (Tables)	12 Months Ended
	Dec. 31, 2016
Pension Plan Assets Invested	Pension plan assets were invested in the following classes of securities: Percentage of Fair Market Value December 31, 2016 December 31, 2015 US Foreign US Foreign Equity Securities 70 % 61 % 51 % 61 % Debt Securities 30 % 34 % 49 % 30 % Real Estate — 2 % — 2 % Other — 3 % — % 7 %
Plan Assets using Fair Value Hierarchy	The following table presents our plan assets using the fair value hierarchy as of December 31, 2016 and 2015 , respectively. The fair value hierarchy has three levels based on the methods used to determine the fair value. Level 1 assets refer to those asset values based on quoted market prices in active markets for identical assets at the measurement date. Level 2 assets refer to assets with values determined using significant other observable inputs, and Level 3 assets include values determined with non-observable inputs. Fair Value Level as of December 31, 2016 US Foreign Asset Category Level 1 Level 2 Level 3 Assets Level 1 Level 2 Level 3 Assets (Millions) Equity securities: U.S. large cap $ 22 $ — $ — $ 77 $ 2 $ 30 $ — $ 26 U.S. mid cap — — — — 1 2 — — U.S. small cap — — — 15 — — — — Non-U.S. large cap — — — — 7 67 — 46 Non-U.S. mid cap — — — 15 — 15 — 8 Non-U.S. small cap — — — — — 10 — 1 Emerging markets — — — 5 2 3 — 1 Debt securities: U.S. treasuries/government bonds — — — — 1 — — — U.S. corporate bonds — — — 2 — 1 — — U.S. other fixed income — — — 54 — — — — Non-U.S. treasuries/government bonds — — — — 1 38 — 29 Non-U.S. corporate bonds — — — — 4 23 — 12 Non-U.S. municipal obligations — — — — — — — 1 Non-U.S. other fixed income — — — — 1 — — — Real Estate: Non-U.S. real estate — — — — 1 5 — — Other: Insurance contracts — — — — — 13 9 — Cash held in bank accounts 2 — — — 7 2 — — Total $ 24 $ — $ — $ 168 $ 27 $ 209 $ 9 $ 124 Fair Value Level as of December 31, 2015 US Foreign Asset Category Level 1 Level 2 Level 3 Asset Level 1 Level 2 Level 3 Asset (Millions) Equity securities: U.S. large cap $ 33 $ — $ — $ 63 $ 5 $ 24 $ — $ 23 U.S. mid cap — — — 8 1 5 — 2 U.S. small cap — — — 15 — — — — Non-U.S. large cap — — — — 13 65 — 34 Non-U.S. mid cap — — — 25 1 15 — 15 Non-U.S. small cap — — — — — 2 — 1 Emerging markets — — — 8 2 4 — — Debt securities: U.S. corporate bonds — — — 35 — 3 — — U.S. other fixed income — — — 113 — — — — Non-U.S. treasuries/government bonds — — — — 1 28 — 28 Non-U.S. corporate bonds — — — — 7 20 — 12 Non-U.S. mortgage backed securities — — — — — 3 — — Non-U.S. municipal obligations — — — — — — — 1 Non-U.S. asset backed securities — — — — — 2 — — Non-U.S. other fixed income — — — — 2 — — — Real Estate: Non-U.S. real estate — — — — 1 5 — 1 Other: Insurance contracts — — — — — 12 8 — Cash held in bank accounts 2 — — — 11 — — — Total $ 35 $ — $ — $ 267 $ 44 $ 188 $ 8 $ 117
Changes in Fair Value of Level 3 Assets	The table below summarizes the changes in the fair value of the Level 3 assets: December 31, 2016 December 31, 2015 Level 3 Assets Level 3 Assets US Foreign US Foreign (Millions) (Millions) Balance at December 31 of the previous year $ — $ 8 $ — $ 9 Actual return on plan assets: Relating to assets still held at the reporting date — 1 — (1 ) Ending Balance at December 31 $ — $ 9 $ — $ 8
Significant Concentrations of Risk	The following table contains information about significant concentrations of risk, including all individual assets that make up more than 5 percent of the total assets and any direct investments in Tenneco stock: Asset Category Fair Value Level Value Percentage of (Millions) 2016: Tenneco Stock 1 $ 22 4.0 % 2015: Tenneco Stock 1 $ 33 5.0 %
Amounts Recognized in Balance Sheets for Pension Plans and Postretirement Benefit Plan	A summary of the change in benefit obligation, the change in plan assets, the development of net amount recognized, and the amounts recognized in the balance sheets for the pension plans and postretirement benefit plan follows: Pension Postretirement 2016 2015 2016 2015 US Foreign US Foreign US US (Millions) Change in benefit obligation: Benefit obligation at December 31 of the previous year $ 416 $ 425 $ 448 $ 483 $ 141 $ 143 Currency rate conversion — (38 ) — (45 ) — — Settlement (1 ) — (8 ) (2 ) — — Service cost 1 8 1 9 — — Interest cost 15 14 17 15 6 6 Administrative expenses/taxes paid — (1 ) — (2 ) — — Plan amendments — (1 ) — 2 — — Actuarial (gain)/loss (7 ) 50 (21 ) (17 ) 5 1 Benefits paid (152 ) (20 ) (21 ) (19 ) (9 ) (9 ) Participants’ contributions — 1 — 1 — — Benefit obligation at December 31 $ 272 $ 438 $ 416 $ 425 $ 143 $ 141 Change in plan assets: Fair value at December 31 of the previous year $ 304 $ 355 $ 334 $ 392 $ — $ — Currency rate conversion — (33 ) — (38 ) — — Settlement (1 ) — (8 ) (2 ) — — Actual return on plan assets 21 50 (11 ) 8 — — Administrative expenses/taxes paid — (1 ) — (2 ) — — Employer contributions 20 17 10 15 9 9 Participants’ contributions — 1 — 1 — — Benefits paid (152 ) (20 ) (21 ) (19 ) (9 ) (9 ) Fair value at December 31 $ 192 $ 369 $ 304 $ 355 $ — $ — Development of net amount recognized: Unfunded status at December 31 $ (80 ) $ (69 ) $ (114 ) $ (68 ) $ (143 ) $ (141 ) Unrecognized cost: Actuarial loss 146 145 232 144 48 49 Prior service cost/(credit) — 4 — 5 (4 ) (6 ) Net amount recognized at December 31 $ 66 $ 80 $ 118 $ 81 $ (99 ) $ (98 ) Amounts recognized in the balance sheets as of December 31 Noncurrent assets $ — $ 9 $ — $ 6 $ — $ — Current liabilities (20 ) (2 ) (2 ) (3 ) (10 ) (9 ) Noncurrent liabilities (60 ) (76 ) (112 ) (71 ) (133 ) (132 ) Net amount recognized $ (80 ) $ (69 ) $ (114 ) $ (68 ) $ (143 ) $ (141 )
Components of Net Periodic Benefit Cost	Net periodic pension costs for the years 2016 , 2015 and 2014 , consist of the following components: 2016 2015 2014 US Foreign US Foreign US Foreign (Millions) Service cost — benefits earned during the year $ 1 $ 8 $ 1 $ 9 $ 1 $ 8 Interest cost 15 14 17 15 20 18 Expected return on plan assets (23 ) (20 ) (23 ) (21 ) (25 ) (23 ) Settlement loss 72 — 4 — 21 — Net amortization: Actuarial loss 8 7 8 8 7 7 Prior service cost — 1 — 1 — 2 Net pension costs $ 73 $ 10 $ 7 $ 12 $ 24 $ 12 Net periodic postretirement benefit cost for the years 2016 , 2015 , and 2014 , consists of the following components: 2016 2015 2014 (Millions) Service cost — benefits earned during the year $ — $ — $ — Interest on accumulated postretirement benefit obligation 6 6 6 Net amortization: Actuarial loss 5 6 4 Prior service credit (1 ) (4 ) (7 ) Prior period correction — — 9 Net periodic postretirement benefit cost $ 10 $ 8 $ 12
Amounts recognized in accumulated other comprehensive loss for pension benefits	Amounts recognized in accumulated other comprehensive loss for pension benefits consist of the following components: 2016 2015 US Foreign US Foreign (Millions) Net actuarial loss $ 146 $ 145 $ 232 $ 144 Prior service cost — 4 — 5 $ 146 $ 149 $ 232 $ 149
Amounts Recognized for Pension and Postretirement Benefits in Other Comprehensive Income	Amounts recognized for pension and postretirement benefits in other comprehensive income for the year ended December 31, 2016 and 2015 include the following components: Year Ended December 31, 2016 2015 Before-Tax Tax Net-of-Tax Before-Tax Tax Net-of-Tax (Millions) Defined benefit pension and postretirement plans: Change in total actuarial gain (loss) $ 51 $ (21 ) $ 30 $ (7 ) $ 2 $ (5 ) Amortization of prior service cost included in net periodic pension and postretirement cost (1 ) — (1 ) (3 ) — (3 ) Amortization of actuarial gain (loss) included in net periodic pension and postretirement cost 20 (8 ) 12 23 (4 ) 19 Other comprehensive income — pension benefits $ 70 $ (29 ) $ 41 $ 13 $ (2 ) $ 11
Components of Net Periodic Benefit Cost	In 2017 , we expect to recognize the following amounts, which are currently reflected in accumulated other comprehensive loss, as components of net periodic benefit cost: 2017 US Foreign (Millions) Net actuarial loss $ 10 $ 8 Prior service cost — 1 $ 10 $ 9 In 2017 , we expect to recognize the following amounts, which are currently reflected in accumulated other comprehensive loss, as components of net periodic benefit cost: 2017 (Millions) Net actuarial loss $ 5 Prior service credit (1 ) $ 4
Projected Benefit Obligation Accumulated Benefit Obligation and Fair Value of Plan Assets for all Pension Plans	The projected benefit obligation, accumulated benefit obligation and fair value of plan assets for all pension plans with accumulated benefit obligations in excess of plan assets at December 31, 2016 and 2015 were as follows: December 31, 2016 December 31, 2015 US Foreign US Foreign (Millions) Projected benefit obligation $ 272 $ 266 $ 416 $ 337 Accumulated benefit obligation 272 261 416 332 Fair value of plan assets 192 188 302 262
Estimated Pension Plan Benefit Payments	The following estimated benefit payments are payable from the pension plans to participants: Year US Foreign (Millions) 2017 $ 33 $ 15 2018 14 15 2019 15 16 2020 16 18 2021 15 17 2022-2026 77 95
Assumptions used in accounting for Pension Plans	The following assumptions were used in the accounting for the pension plans for the years of 2016 , 2015 , and 2014 : 2016 2015 US Foreign US Foreign Weighted-average assumptions used to determine benefit obligations Discount rate 4.2 % 2.8 % 4.3 % 3.5 % Rate of compensation increase N/A 2.5 % N/A 2.7 % 2016 2015 2014 US Foreign US Foreign US Foreign Weighted-average assumptions used to determine net periodic benefit cost Discount rate 4.3 % 3.5 % 4.1 % 3.2 % 4.8 % 4.3 % Expected long-term return on plan assets 7.6 % 5.7 % 7.8 % 5.9 % 7.8 % 6.1 % Rate of compensation increase N/A 2.7 % N/A 3.0 % N/A 3.3 %
Estimated Postretirement Benefit Payments	The following estimated postretirement benefit payments are payable from the plan to participants: Year Postretirement (Millions) 2017 $ 10 2018 10 2019 10 2020 10 2021 9 2022-2026 45
Postretirement Cost	The following assumptions were used in the accounting for postretirement cost for the years of 2016 , 2015 and 2014 : 2016 2015 Weighted-average assumptions used to determine benefit obligations Discount rate 4.2 % 4.3 % Rate of compensation increase N/A N/A 2016 2015 2014 Weighted-average assumptions used to determine net periodic benefit cost Discount rate 4.3 % 4.1 % 4.8 % Rate of compensation increase N/A N/A N/A

Segment and Geographic Area I32

Segment and Geographic Area Information (Tables)	12 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Segment Information	Segment results for 2016 , 2015 and 2014 are as follows: Clean Air Division Ride Performance Division North Europe, South America & India Asia North Europe, South America & India Asia Other Reclass & Elims Total (Millions) At December 31, 2016, and for the Year Ended Revenues from external customers $ 3,003 $ 1,989 $ 1,077 $ 1,234 $ 1,019 $ 277 $ — $ — $ 8,599 Intersegment revenues 13 92 3 9 26 46 — (189 ) — EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests 225 103 150 157 25 56 (188 ) — 528 Total assets 1,356 734 647 723 570 265 — 47 4,342 At December 31, 2015, and for the Year Ended Revenues from external customers $ 2,851 $ 1,835 $ 1,037 $ 1,313 $ 944 $ 229 $ — $ — $ 8,209 Intersegment revenues 16 100 — 10 28 46 — (200 ) — EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests 244 52 121 155 (5 ) 39 (87 ) — 519 Total assets 1,209 713 596 692 499 226 — 32 3,967 At December 31, 2014, and for the Year Ended Revenues from external customers $ 2,815 $ 1,974 $ 1,022 $ 1,351 $ 1,032 $ 226 $ — $ — $ 8,420 Intersegment revenues 25 114 — 10 38 43 — (230 ) — EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests 237 59 101 143 40 36 (124 ) — 492 Total assets 1,156 789 593 659 503 227 — 69 3,996
Revenue from External Customers Table	The following table shows information relating to our external customer revenues for each product or each group of similar products: Net Sales 2016 2015 2014 (Millions) Clean Air Products & Systems Aftermarket $ 305 $ 318 $ 318 Original Equipment OE Value-add 3,736 3,489 3,559 OE Substrate 2,028 1,916 1,934 5,764 5,405 5,493 6,069 5,723 5,811 Ride Performance Products & Systems Aftermarket 937 941 976 Original Equipment 1,593 1,545 1,633 2,530 2,486 2,609 Total Revenues $ 8,599 $ 8,209 $ 8,420
Revenue Percent by Major Customers	The following customers accounted for 10 percent or more of our net sales in the last three years. The net sales to both customers were across segments. Customer 2016 2015 2014 General Motors Company 17 % 15 % 15 % Ford Motor Company 13 % 13 % 13 %
Geographic Information Table	The following table shows information relating to the geographic regions in which we operate: Geographic Area United China Germany Canada United Other Reclass & Consolidated (Millions) At December 31, 2016, and for the Year Then Ended Revenues from external customers(b) $ 3,512 $ 1,186 $ 764 $ 387 $ 387 $ 2,363 $ — $ 8,599 Long-lived assets(c) 541 217 111 44 38 518 — $ 1,469 Total assets 1,897 791 231 166 130 1,275 (148 ) $ 4,342 At December 31, 2015, and for the Year Then Ended Revenues from external customers(b) $ 3,362 $ 1,101 $ 807 $ 387 $ 307 $ 2,245 $ — $ 8,209 Long-lived assets(c) 496 203 108 41 32 476 — $ 1,356 Total assets 1,726 696 258 146 101 1,156 (116 ) $ 3,967 At December 31, 2014, and for the Year Then Ended Revenues from external customers(b) $ 3,348 $ 1,079 $ 955 $ 413 $ 235 $ 2,390 $ — $ 8,420 Long-lived assets(c) 473 192 113 52 27 494 — 1,351 Total assets 1,696 683 319 164 68 1,221 (155 ) 3,996 (a) Revenues from external customers and long-lived assets for individual foreign countries other than China, Germany, Canada, and United Kingdom are not material. (b) Revenues are attributed to countries based on location of the shipper. (c) Long-lived assets include all long-term assets except goodwill, intangibles and deferred tax assets.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Warranty Accrual Table	Below is a table that shows the activity in the warranty accrual accounts: Year Ended 2016 2015 2014 (Millions) Beginning Balance $ 23 $ 26 $ 24 Accruals related to product warranties 12 15 24 Reductions for payments made (15 ) (18 ) (22 ) Ending Balance $ 20 $ 23 $ 26

Supplemental Guarantor Conden34

Supplemental Guarantor Condensed Consolidating Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Statement of Comprehensive Income (Loss)	STATEMENT OF COMPREHENSIVE INCOME (LOSS) For the Year Ended December 31, 2016 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Revenues Net sales and operating revenues — External $ 3,865 $ 4,734 $ — $ — $ 8,599 Affiliated companies 526 747 — (1,273 ) — 4,391 5,481 — (1,273 ) 8,599 Costs and expenses Cost of sales (exclusive of depreciation and amortization shown below) 3,715 4,669 — (1,273 ) 7,111 Engineering, research, and development 76 78 — — 154 Selling, general, and administrative 311 277 1 — 589 Depreciation and amortization of other intangibles 86 126 — — 212 4,188 5,150 1 (1,273 ) 8,066 Other income (expense) Loss on sale of receivables (2 ) (3 ) — — (5 ) Other income (expense) (9 ) 24 — (15 ) — (11 ) 21 — (15 ) (5 ) Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income from affiliated companies 192 352 (1 ) (15 ) 528 Interest expense — External (net of interest capitalized) (2 ) 4 90 — 92 Affiliated companies (net of interest income) (12 ) 7 5 — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies 206 341 (96 ) (15 ) 436 Income tax expense (benefit) (95 ) 98 3 Equity in net income (loss) from affiliated companies 170 — 459 (629 ) — Net income (loss) 471 243 363 (644 ) 433 Less: Net income attributable to noncontrolling interests — 70 — 70 Net income (loss) attributable to Tenneco Inc. $ 471 $ 173 $ 363 $ (644 ) $ 363 Comprehensive income (loss) attributable to Tenneco Inc. $ 471 $ 173 $ 363 $ (644 ) $ 363 STATEMENT OF COMPREHENSIVE INCOME (LOSS) For the Year Ended December 31, 2015 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Revenues Net sales and operating revenues — External $ 3,711 $ 4,498 $ — $ — $ 8,209 Affiliated companies 411 558 — (969 ) — 4,122 5,056 — (969 ) 8,209 Costs and expenses Cost of sales (exclusive of depreciation and amortization shown below) 3,442 4,372 — (969 ) 6,845 Engineering, research, and development 70 76 — — 146 Selling, general, and administrative 193 295 3 — 491 Depreciation and amortization of other intangibles 87 116 — — 203 3,792 4,859 3 (969 ) 7,685 Other income (expense) Loss on sale of receivables (1 ) (3 ) — — (4 ) Other income (expense) 41 6 — (48 ) (1 ) 40 3 — (48 ) (5 ) Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income from affiliated companies 370 200 (3 ) (48 ) 519 Interest expense — External (net of interest capitalized) (2 ) 3 66 — 67 Affiliated companies (net of interest income) 54 (56 ) 2 — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies 318 253 (71 ) (48 ) 452 Income tax expense 43 106 — — 149 Equity in net income (loss) from affiliated companies 84 — 318 (402 ) — Net income (loss) 359 147 247 (450 ) 303 Less: Net income attributable to noncontrolling interests — 56 — — 56 Net income (loss) attributable to Tenneco Inc. $ 359 $ 91 $ 247 $ (450 ) $ 247 Comprehensive income (loss) attributable to Tenneco Inc. $ 359 $ 91 $ 127 $ (450 ) $ 127 STATEMENT OF COMPREHENSIVE INCOME (LOSS) For the Year Ended December 31, 2014 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Revenues Net sales and operating revenues — External $ 3,727 $ 4,693 $ — $ — $ 8,420 Affiliated companies 403 602 — (1,005 ) — 4,130 5,295 — (1,005 ) 8,420 Costs and expenses Cost of sales (exclusive of depreciation and amortization shown below) 3,391 4,639 — (1,005 ) 7,025 Engineering, research, and development 81 88 — — 169 Selling, general, and administrative 211 302 6 — 519 Depreciation and amortization of other intangibles 86 122 — — 208 3,769 5,151 6 (1,005 ) 7,921 Other income (expense) Loss on sale of receivables — (4 ) — — (4 ) Other income (expense) 26 9 — (38 ) (3 ) 26 5 — (38 ) (7 ) Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income from affiliated companies 387 149 (6 ) (38 ) 492 Interest expense — External (net of interest capitalized) (1 ) 4 88 — 91 Affiliated companies (net of interest income) 73 (75 ) 2 — — Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies 315 220 (96 ) (38 ) 401 Income tax expense 94 37 — — 131 Equity in net income (loss) from affiliated companies 129 — 322 (451 ) — Net income (loss) 350 183 226 (489 ) 270 Less: Net income attributable to noncontrolling interests — 44 — — 44 Net income (loss) attributable to Tenneco Inc. $ 350 $ 139 $ 226 $ (489 ) $ 226 Comprehensive income (loss) attributable to Tenneco Inc. $ 350 $ 139 $ 41 $ (489 ) $ 41
Balance Sheet	BALANCE SHEET December 31, 2016 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) ASSETS Current assets: Cash and cash equivalents $ 9 $ 338 $ — $ — $ 347 Restricted cash — 2 — — 2 Receivables, net 386 1,412 — (504 ) 1,294 Inventories 361 369 — — 730 Prepayments and other 62 167 — — 229 Total current assets 818 2,288 — (504 ) 2,602 Other assets: Investment in affiliated companies 1,221 — 1,222 (2,443 ) — Notes and advances receivable from affiliates 939 16,529 4,781 (22,249 ) — Long-term receivables, net 9 — — — 9 Goodwill 22 35 — — 57 Intangibles, net 7 12 — — 19 Deferred income taxes 47 19 129 — 195 Other 46 49 8 — 103 2,291 16,644 6,140 (24,692 ) 383 Plant, property, and equipment, at cost 1,371 2,177 — — 3,548 Less — Accumulated depreciation and amortization (895 ) (1,296 ) — — (2,191 ) 476 881 — — 1,357 Total assets $ 3,585 $ 19,813 $ 6,140 $ (25,196 ) $ 4,342 LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Short-term debt (including current maturities of long-term debt) Short-term debt — non-affiliated $ — $ 75 $ 15 $ — $ 90 Short-term debt — affiliated 167 187 — (354 ) — Accounts payable 557 1,027 — (88 ) 1,496 Accrued taxes 6 35 — — 41 Other 147 243 15 (62 ) 343 Total current liabilities 877 1,567 30 (504 ) 1,970 Long-term debt — non-affiliated — 12 1,282 — 1,294 Long-term debt — affiliated 1,543 16,466 4,240 (22,249 ) — Deferred income taxes — 7 — — 7 Postretirement benefits and other liabilities 297 92 — — 389 Commitments and contingencies Total liabilities 2,717 18,144 5,552 (22,753 ) 3,660 Redeemable noncontrolling interests — 43 — — 43 Tenneco Inc. Shareholders’ equity 868 1,575 588 (2,443 ) 588 Noncontrolling interests — 51 — — 51 Total equity 868 1,626 588 (2,443 ) 639 Total liabilities, redeemable noncontrolling interests and equity $ 3,585 $ 19,813 $ 6,140 $ (25,196 ) $ 4,342 BALANCE SHEET December 31, 2015 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) ASSETS Current assets: Cash and cash equivalents $ 2 $ 285 $ — $ — $ 287 Restricted cash — 1 — — 1 Receivables, net 299 1,241 — (428 ) 1,112 Inventories 333 349 — — 682 Prepayments and other 67 162 — — 229 Total current assets 701 2,038 — (428 ) 2,311 Other assets: Investment in affiliated companies 1,146 — 893 (2,039 ) — Notes and advances receivable from affiliates 938 13,291 4,788 (19,017 ) — Long-term receivables, net 11 2 — — 13 Goodwill 22 38 — — 60 Intangibles, net 9 13 — — 22 Deferred income taxes 122 28 68 — 218 Pension Assets — — — — — Other 42 47 11 — 100 2,290 13,419 5,760 (21,056 ) 413 Plant, property, and equipment, at cost 1,281 2,137 — — 3,418 Less — Accumulated depreciation and amortization (851 ) (1,324 ) — — (2,175 ) 430 813 — — 1,243 Total assets $ 3,421 $ 16,270 $ 5,760 $ (21,484 ) $ 3,967 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term debt (including current maturities of long-term debt) Short-term debt — non-affiliated $ — $ 73 $ 13 $ — $ 86 Short-term debt — affiliated 164 147 — (311 ) — Accounts payable 484 955 — (63 ) 1,376 Accrued taxes 6 31 — — 37 Other 125 221 3 (54 ) 295 Total current liabilities 779 1,427 16 (428 ) 1,794 Long-term debt — non-affiliated — 21 1,103 — 1,124 Long-term debt — affiliated 1,583 13,226 4,208 (19,017 ) — Deferred income taxes — 7 — — 7 Postretirement benefits and other liabilities 424 100 — — 524 Commitments and contingencies Total liabilities 2,786 14,781 5,327 (19,445 ) 3,449 Redeemable noncontrolling interests — 43 — — 43 Tenneco Inc. Shareholders’ equity 635 1,404 433 (2,039 ) 433 Noncontrolling interests — 42 — — 42 Total equity 635 1,446 433 (2,039 ) 475 Total liabilities, redeemable noncontrolling interests and equity $ 3,421 $ 16,270 $ 5,760 $ (21,484 ) $ 3,967
Statement of Cash Flows	STATEMENT OF CASH FLOWS Year Ended December 31, 2016 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Operating Activities Net cash provided (used) by operating activities $ 176 $ 300 $ 28 $ (15 ) $ 489 Investing Activities Proceeds from sale of assets — 6 — — 6 Cash payments for plant, property, and equipment (117 ) (208 ) — — (325 ) Cash payments for software related intangible assets (13 ) (7 ) — — (20 ) Change in restricted cash — (1 ) — — (1 ) Net cash used by investing activities (130 ) (210 ) — — (340 ) Financing Activities Retirement of long-term debt — (16 ) (515 ) — (531 ) Issuance of long-term debt — 9 500 — 509 Debt issuance cost on long-term debt — — (9 ) — (9 ) Tax impact from stock-based compensation — — (10 ) — (10 ) Purchase of common stock under the share repurchase program — — (225 ) — (225 ) Issuance of common shares — — 18 — 18 Increase in bank overdrafts — 10 — — 10 Net increase in revolver borrowings and short-term debt excluding current maturities of long-term debt — 5 197 — 202 Intercompany dividends and net increase (decrease) in intercompany obligations (39 ) 8 16 15 — Distribution to noncontrolling interests partners — (55 ) — — (55 ) Net cash provided (used) by financing activities (39 ) (39 ) (28 ) 15 (91 ) Effect of foreign exchange rate changes on cash and cash equivalents — 2 — — 2 Increase in cash and cash equivalents 7 53 — — 60 Cash and cash equivalents, January 1 2 285 — — 287 Cash and cash equivalents, December 31 (Note) $ 9 $ 338 $ — $ — $ 347 Note: Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase. STATEMENT OF CASH FLOWS Year Ended December 31, 2015 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Operating Activities Net cash provided (used) by operating activities $ 204 $ 311 $ 49 $ (47 ) $ 517 Investing Activities Proceeds from sale of assets — 4 — — 4 Cash payments for plant, property, and equipment (114 ) (172 ) — — (286 ) Cash payments for software related intangible assets (16 ) (7 ) — — (23 ) Change in restricted cash — 2 — — 2 Net cash used by investing activities (130 ) (173 ) — — (303 ) Financing Activities Retirement of long-term debt — (22 ) (15 ) — (37 ) Issuance of long-term debt — 1 — — 1 Debt issuance cost on long-term debt — — (1 ) — (1 ) Tax impact from stock-based compensation — — 6 — 6 Purchase of common stock under the share repurchase program — — (213 ) — (213 ) Issuance of common shares — — 6 — 6 Increase in bank overdrafts — (22 ) — — (22 ) Net increase in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable — 20 82 — 102 Net increase (decrease) in short-term borrowings secured by accounts receivable — — 30 — 30 Intercompany dividends and net increase (decrease) in intercompany obligations (82 ) (21 ) 56 47 — Distribution to noncontrolling interests partners — (44 ) — — (44 ) Net cash provided (used) by financing activities (82 ) (88 ) (49 ) 47 (172 ) Effect of foreign exchange rate changes on cash and cash equivalents — (37 ) — — (37 ) Increase (decrease) in cash and cash equivalents (8 ) 13 — — 5 Cash and cash equivalents, January 1 10 272 — — 282 Cash and cash equivalents, December 31 (Note) $ 2 $ 285 $ — $ — $ 287 Note: Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase. STATEMENT OF CASH FLOWS Year Ended December 31, 2014 Guarantor Nonguarantor Tenneco Inc. Reclass Consolidated (Millions) Operating Activities Net cash provided (used) by operating activities $ 44 $ 314 $ 21 $ (38 ) $ 341 Investing Activities Proceeds from sale of assets — 3 — — 3 Cash payments for plant, property, and equipment (106 ) (222 ) — — (328 ) Cash payments for software related intangible assets (5 ) (8 ) — — (13 ) Cash payments for net assets purchased (3 ) — — — (3 ) Change in restricted cash — 2 — — 2 Net cash used by investing activities (114 ) (225 ) — — (339 ) Financing Activities Retirement of long-term debt — (9 ) (453 ) — (462 ) Issuance of long-term debt — 45 525 — 570 Debt issuance cost on long-term debt — — (12 ) — (12 ) Tax impact from stock-based compensation — — 26 — 26 Purchase of common stock under the share repurchase program — — (22 ) — (22 ) Issuance of common shares — — 19 — 19 Increase in bank overdrafts — 6 — — 6 Net decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable — (13 ) (57 ) — (70 ) Net decrease in short-term borrowings secured by accounts receivable — — (10 ) — (10 ) Intercompany dividends and net increase (decrease) in intercompany obligations 74 (75 ) (37 ) 38 — Capital contribution from noncontrolling interest partner — 5 — — 5 Distribution to noncontrolling interests partners — (30 ) — — (30 ) Net cash provided (used) by financing activities 74 (71 ) (21 ) 38 20 Effect of foreign exchange rate changes on cash and cash equivalents — (15 ) — — (15 ) Increase in cash and cash equivalents 4 3 — — 7 Cash and cash equivalents, January 1 6 269 — — 275 Cash and cash equivalents, December 31 (Note) $ 10 $ 272 $ — $ — $ 282 Note: Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase.

Quarterly Financial Data (Una35

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data	Quarter Net Sales Cost of Sales Earnings Before Net Income (Millions) 2016 1st $ 2,136 $ 1,770 $ 124 $ 57 2nd 2,212 1,810 177 86 3rd 2,096 1,741 152 180 4th 2,155 1,790 75 40 $ 8,599 $ 7,111 $ 528 $ 363 2015 1st $ 2,023 $ 1,686 $ 120 $ 49 2nd 2,130 1,764 155 78 3rd 2,025 1,707 116 52 4th 2,031 1,688 128 68 $ 8,209 $ 6,845 $ 519 $ 247 Quarter Basic Diluted 2016 1st $ 1.00 $ 0.99 2nd 1.51 1.49 3rd 3.24 3.21 4th 0.74 0.73 Full Year 6.49 6.44 2015 1st $ 0.81 $ 0.80 2nd 1.27 1.26 3rd 0.89 0.88 4th 1.18 1.17 Full Year 4.14 4.11

Summary of Accounting Policie36

Summary of Accounting Policies - Consolidation and Presentation (Narrative) (Details)	Dec. 31, 2016
Minimum [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Range of percentages of investments, equity method investments	20.00%
Maximum [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Range of percentages of investments, equity method investments	50.00%

Summary of Accounting Policie37

Summary of Accounting Policies - Redeemable Noncontrolling Interests (Narrative) (Details) $ in Millions	1 Months Ended	12 Months Ended
	May 31, 2014USD ($)	Dec. 31, 2016joint_venture
Redeemable Noncontrolling Interest [Line Items]
Number of Joint Ventures | joint_venture		5
Tenneco Fusheng (chendu) Automobile Parts Co Ltd [Member]
Redeemable Noncontrolling Interest [Line Items]
Buisness Sale Percentage of Voting Interest Sold	45.00%
Proceeds from Sale of Equity Method Investments | $	$ 4
Equity Ownership Percentage after Additional Sale	55.00%
Equity Ownership Percentage Before Additional Sale	100.00%

Summary of Accounting Policie38

Summary of Accounting Policies - Redeemable Non Controlling Interest (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Redeemable Noncontrolling Interest [Roll Forward]
Beginning Balance	$ 43	$ 35	$ 20
Net income attributable to redeemable noncontrolling interests	37	33	23
Sale of 45 percent equity interest from Tenneco Inc	0	0	4
Capital Contributions	0	0	1
Other comprehensive loss	(2)	(1)	0
Dividends declared	(35)	(24)	(13)
Ending Balance	$ 43	$ 43	$ 35

Summary of Accounting Policie39

Summary of Accounting Policies - Inventories by Major Classification (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Finished goods	$ 284	$ 257
Work in process	245	233
Raw materials	137	135
Materials and supplies	64	57
Inventories	$ 730	$ 682

Summary of Accounting Policie40

Summary of Accounting Policies - Goodwill and Intangibles, Net (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Intangible Assets And Goodwill [Line Items]
Amortization of Intangible Assets	$ 3	$ 5	$ 4
Estimated amortization of intangible assets, 2017	5
Estimated amortization of intangible assets, 2018	4
Estimated amortization of intangible assets, 2019	4
Estimated amortization of intangible assets, 2020	3
Estimated amortization of intangible assets, 2021	2
North America | Ride Performance Division
Intangible Assets And Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss	306
Europe, South America & India | Clean Air Division
Intangible Assets And Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss	32
Asia Pacific | Ride Performance Division
Intangible Assets And Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss	$ 11
Maximum [Member]
Intangible Assets And Goodwill [Line Items]
Finite useful life of intangible assets, Minimum	50 years
Minimum [Member]
Intangible Assets And Goodwill [Line Items]
Finite useful life of intangible assets, Minimum	3 years

Summary of Accounting Policie41

Summary of Accounting Policies - Net Carrying Amount of Goodwill (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Balance, beginning	$ 60	$ 65
Translation adjustments	(3)	(5)
Balance, ending	57	60
Clean Air Division | North America
Goodwill [Roll Forward]
Balance, beginning	14	14
Translation adjustments	0	0
Balance, ending	14	14
Clean Air Division | Europe, South America & India
Goodwill [Roll Forward]
Balance, beginning	11	12
Translation adjustments	0	(1)
Balance, ending	11	11
Clean Air Division | Asia Pacific
Goodwill [Roll Forward]
Balance, beginning	0	0
Translation adjustments	0	0
Balance, ending	0	0
Ride Performance Division | North America
Goodwill [Roll Forward]
Balance, beginning	10	10
Translation adjustments	0	0
Balance, ending	10	10
Ride Performance Division | Europe, South America & India
Goodwill [Roll Forward]
Balance, beginning	25	29
Translation adjustments	(3)	(4)
Balance, ending	22	25
Ride Performance Division | Asia Pacific
Goodwill [Roll Forward]
Balance, beginning	0	0
Translation adjustments	0	0
Balance, ending	$ 0	$ 0

Summary of Accounting Policie42

Summary of Accounting Policies - Finite-Lived Intangible Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 47	$ 49
Accumulated Amortization	(28)	(27)
Customer Contracts
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	8	8
Accumulated Amortization	(5)	(4)
Patents
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	1	2
Accumulated Amortization	(1)	(2)
Technology Rights
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	29	29
Accumulated Amortization	(21)	(19)
Other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	9	10
Accumulated Amortization	$ (1)	$ (2)

Summary of Accounting Policie43

Summary of Accounting Policies - Plant Property, and Equipment (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Plant, property, and equipment, at cost	$ 3,548	$ 3,418
Land, buildings, and improvements
Property, Plant and Equipment [Line Items]
Plant, property, and equipment, at cost	568	561
Machinery and equipment
Property, Plant and Equipment [Line Items]
Plant, property, and equipment, at cost	2,638	2,569
Other, including construction in progress
Property, Plant and Equipment [Line Items]
Plant, property, and equipment, at cost	$ 342	$ 288

Summary of Accounting Policie44

Summary of Accounting Policies - Plant, Property, and Equipment, at Cost (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Plant, property, and equipment, at cost	$ 3,548	$ 3,418
Land, buildings, and improvements
Property, Plant and Equipment [Line Items]
Plant, property, and equipment, at cost	$ 568	561
Buildings and improvements | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of plant, property and equipment	10 years
Buildings and improvements | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life of plant, property and equipment	50 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Plant, property, and equipment, at cost	$ 2,638	2,569
Machinery and equipment | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of plant, property and equipment	3 years
Machinery and equipment | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life of plant, property and equipment	25 years
Other, including construction in progress
Property, Plant and Equipment [Line Items]
Plant, property, and equipment, at cost	$ 342	$ 288

Summary of Accounting Policie45

Summary of Accounting Policies - Notes and Accounts Receivable and Allowance for Doubtful Accounts (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Short-term and long-term accounts receivable outstanding	$ 1,293,000,000	$ 1,126,000,000
Allowance for doubtful accounts on short-term and long-term accounts receivable	16,000,000	16,000,000
Short and Long-term notes receivable outstanding	4,000,000	5,000,000
Allowance for doubtful accounts on short-term and long-term notes receivable	0	0
Capitalized Computer Software, Amortization	$ 12,000,000	$ 13,000,000	$ 15,000,000

Summary of Accounting Policie46

Summary of Accounting Policies - Pre-production Design and Development and Tooling Assets (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Unbilled pre-production design and development costs	$ 22	$ 21
Original Equipment tools and dies, owned	62	64
In-process tools and dies built for original equipment customers	$ 97	$ 107

Summary of Accounting Policie47

Summary of Accounting Policies - Internal Use Software Assets/Accounts Payable (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Capitalized software development costs, net of amortization	$ 66	$ 58
Capitalized Computer Software, Amortization	$ 12	13	$ 15
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets, Maximum	3 years
Minimum [Member] | Software Development [Member]
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets, Maximum	3 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets, Maximum	50 years
Maximum [Member] | Software Development [Member]
Finite-Lived Intangible Assets [Line Items]
Finite useful life of intangible assets, Maximum	12 years
Accounts Payable [Member]
Finite-Lived Intangible Assets [Line Items]
Accounts payable	$ 99	93
Accrued compensation	$ 27	$ 17

Summary of Accounting Policie48

Summary of Accounting Policies - Revenue Recognition (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Substrate sales revenue	$ 2,028	$ 1,916	$ 1,934

Summary of Accounting Policie49

Summary of Accounting Policies - Engineering, Research and Development (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Engineering, research, and development	$ 154	$ 146	$ 169
Customer reimbursements for engineering, research and development expenses	$ 137	$ 145	$ 159

Summary of Accounting Policie50

Summary of Accounting Policies - Advertising and Promotion Expenses (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Advertising and promotion expenses	$ 40	$ 54	$ 57

Summary of Accounting Policie51

Summary of Accounting Policies - Foreign Currency Translation (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Foreign currency transaction gains (losses)	$ 1	$ (6)	$ (1)

Summary of Accounting Policie52

Summary of Accounting Policies - Risk Management Activities (Details) - Foreign Exchange Forward - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Fair value of derivative liability	$ 1
Fair value of derivative asset		$ 1

Summary of Accounting Policie53

Summary of Accounting Policies - Restricted Net Assets (Narrative) (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Restricted Net Assets	$ 323	$ 248

Earnings Per Share - Summary of

Earnings Per Share - Summary of Earnings Per Share of Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Basic earnings per share —
Net income attributable to Tenneco Inc.	$ 40	$ 180	$ 86	$ 57	$ 68	$ 52	$ 78	$ 49	$ 363	$ 247	$ 226
Average shares of common stock outstanding (in shares)									55,939,135	59,678,309	60,734,022
Earnings per average share of common stock (in dollars per share)	$ 0.74	$ 3.24	$ 1.51	$ 1	$ 1.18	$ 0.89	$ 1.27	$ 0.81	$ 6.49	$ 4.14	$ 3.72
Diluted earnings per share —
Average shares of common stock outstanding (in shares)									55,939,135	59,678,309	60,734,022
Effect of dilutive securities:
Restricted stock (in shares)									175,513	96,168	130,732
Stock options (in shares)									292,788	418,673	917,754
Average shares of common stock outstanding including dilutive securities (in shares)									56,407,436	60,193,150	61,782,508
Earnings per average share of common stock (in dollars per share)	$ 0.73	$ 3.21	$ 1.49	$ 0.99	$ 1.17	$ 0.88	$ 1.26	$ 0.80	$ 6.44	$ 4.11	$ 3.66

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Details) - shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Anti-dilutive stock options	134,361	175,216	1,357

Acquisitions and Divestitures -

Acquisitions and Divestitures -Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended		3 Months Ended	12 Months Ended
	Mar. 31, 2016	May 31, 2014	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Noncontrolling Interest, Increase from Sale of Parent Equity Interest			$ 1
Restructuring and Related Cost, Incurred Cost				$ 36	$ 63	$ 49
Discontinuation of Marzocchi Motor Bike Fork Suspension Business, Mountain Bike Business, and Liquidation of Marzocchi Operations
Business Acquisition [Line Items]
Restructuring and Related Cost, Incurred Cost					$ 29
Tenneco Fusheng (chendu) Automobile Parts Co Ltd
Business Acquisition [Line Items]
Buisness Sale Percentage of Voting Interest Sold		45.00%
Proceeds from Sale of Equity Method Investments		$ 4
Equity Ownership Percentage after Additional Sale		55.00%
Equity Ownership Percentage Before Additional Sale		100.00%
Quantum Capital Partners A.G
Business Acquisition [Line Items]
Manufacturing agreement (in years)	3 years

Restructuring and Other Charg57

Restructuring and Other Charges - Additional Information (Details) $ in Millions	Jul. 22, 2015peoplejob	Dec. 08, 2014USD ($)	Jan. 31, 2013USD ($)	Mar. 31, 2016	Mar. 31, 2016USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost						$ 36	$ 63	$ 49
Non- cash charges						6	10	5
Effect on Future Cash Flows, Amount			$ 60
Restructuring and related cost allowed to be excluded from the calculation of financial covenant ratios		$ 150				83
Europe
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost					$ 20		22	31
Non- cash charges								3
Reduction in Structural Costs | Europe
Restructuring Cost and Reserve [Line Items]
Restructuring Plan, Cost Reduction Initiative, Annualized Run Rate					49
Restructuring Plan, Cost Reduction Initiative, Target Reduction Amount At Current Exchange Rates					$ 55
Discontinuation of Marzocchi Motor Bike Fork Suspension Business, Mountain Bike Business, and Liquidation of Marzocchi Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost							29
Restructuring and Related Cost, Number of Positions Eliminated | job	138
Discontinuation of Marzocchi Motor Bike Fork Suspension Business, Mountain Bike Business, and Liquidation of Marzocchi Operations | Bologna, Italy
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | people	127
Discontinuation of Marzocchi Motor Bike Fork Suspension Business, Mountain Bike Business, and Liquidation of Marzocchi Operations | North America and Taiwan
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | people	11
Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost						17	46	28
Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost						12	11	9
Engineering Expense
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost						1	1	7
Other Expense
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost						2	1	4
Reduced Depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost						$ 4	$ 4	$ 1
Quantum Capital Partners A.G
Restructuring Cost and Reserve [Line Items]
Manufacturing agreement (in years)				3 years

Restructuring and Other Charg58

Restructuring and Other Charges - Roll Forward of Restructuring Reserve (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2016
Employee Severance
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	$ 30	$ 30
Expenses		30
Cash Payments		(45)
Impact of Exchange Rates		0
Restructuring Reserve, ending balance		$ 15
Europe | Reduction in Structural Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Plan, Cost Reduction Initiative, Annualized Run Rate	$ 49

Long-Term Debt, Short-Term De59

Long-Term Debt, Short-Term Debt, and Financing Arrangements - Summary of Long-Term Debt Obligations (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term debt (including current maturities)	$ 1,310	$ 1,137
Less - maturities classified as current	3	1
Total long-term debt	1,307	1,136
5% Senior Notes Due 2026
Debt Instrument [Line Items]
Long-term debt (including current maturities)	500
Tenneco Inc. (Parent Company) | Line of Credit [Member] | Revolver Borrowings Due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt (including current maturities)	300	105
Tenneco Inc. (Parent Company) | Term Loan [Member] | Senior Tranche A Term Loan Due 2017 Through 2019 [Member]
Debt Instrument [Line Items]
Long-term debt (including current maturities)	270	285
Tenneco Inc. (Parent Company) | Senior Notes [Member] | Senior Notes Due 2024, 5.375% [Member]
Debt Instrument [Line Items]
Long-term debt (including current maturities)	225	225
Tenneco Inc. (Parent Company) | Senior Notes [Member] | 5% Senior Notes Due 2026
Debt Instrument [Line Items]
Long-term debt (including current maturities)	500
Tenneco Inc. (Parent Company) | Senior Notes [Member] | Senior Notes Due 2020, 6.875% [Member]
Debt Instrument [Line Items]
Long-term debt (including current maturities)		500
Other subsidiaries | Other Long Term Debt [Member] | Other Long Term Debt Due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt (including current maturities)	7	15
Other subsidiaries | Notes Payable, Other Payables [Member] | Notes Due 2016 Through 2026 [Member]
Debt Instrument [Line Items]
Long-term debt (including current maturities)	$ 8	$ 7

Long-Term Debt, Short-Term De60

Long-Term Debt, Short-Term Debt, and Financing Arrangements - Summary of Long-Term Debt Obligations Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 561
Revolver Borrowings Due 2019 [Member] | Tenneco Inc. (Parent Company) | Line of Credit [Member]
Debt Instrument [Line Items]
Average effective interest rate	2.30%	2.00%
Notes Due 2016 Through 2026 [Member] | Other subsidiaries | Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Average effective interest rate	0.20%	0.10%
Other Long Term Debt Due 2019 [Member] | Other subsidiaries | Other Long Term Debt [Member]
Debt Instrument [Line Items]
Average effective interest rate	1.70%	6.55%
Senior Notes Due 2020, 6.875% [Member] | Tenneco Inc. (Parent Company) | Senior Notes [Member]
Debt Instrument [Line Items]
Stated interest rate		6.875%
Senior Notes Due 2024, 5.375% [Member] | Tenneco Inc. (Parent Company) | Senior Notes [Member]
Debt Instrument [Line Items]
Stated interest rate	5.375%	5.375%
5% Senior Notes Due 2026 | Tenneco Inc. (Parent Company) | Senior Notes [Member]
Debt Instrument [Line Items]
Stated interest rate	5.00%
Senior Tranche A Term Loan Due 2017 Through 2019 [Member] | Tenneco Inc. (Parent Company) | Term Loan [Member]
Debt Instrument [Line Items]
Average effective interest rate	2.20%	1.90%
Fair Value, Inputs, Level 1 | Foreign
Debt Instrument [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 27	$ 44
Fair Value, Inputs, Level 1 | Foreign | Cash held in bank accounts
Debt Instrument [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 7	$ 11

Long-Term Debt, Short-Term De61

Long-Term Debt, Short-Term Debt, and Financing Arrangements -Additional Information (Detail)

Dec. 05, 2014

Feb. 28, 2014

Apr. 30, 2012USD ($)

Dec. 31, 2019USD ($)

Sep. 30, 2016USD ($)

Jun. 30, 2016USD ($)

Dec. 31, 2014USD ($)

Dec. 31, 2017USD ($)

Dec. 31, 2016USD ($)

Dec. 31, 2015USD ($)

Dec. 31, 2014USD ($)

Sep. 30, 2019USD ($)

Jul. 13, 2016USD ($)

Jun. 13, 2016USD ($)

Jun. 06, 2016USD ($)

Dec. 07, 2014USD ($)

Dec. 04, 2014

Nov. 19, 2014USD ($)

Apr. 06, 2012

Mar. 22, 2012USD ($)

Mar. 08, 2012USD ($)

Long Term Debt And Other Financing Arrangement [Line Items]

Maturities and sinking fund requirement applicable to long term debt 2014

$ 25,000,000

Maturities and sinking fund requirement applicable to long term debt 2016

34,000,000

Long-term Debt, Maturities, Repayments of Principal in Year Three

522,000,000

Maturities and sinking fund requirement applicable to long term debt 2017

1,000,000

Maturities and sinking fund requirement applicable to long term debt 2018

$ 1,000,000

Maximum percentage of stock of certain first-tier foreign subsidiaries pledged to secure senior credit facility

66.00%

Line of credit facility, maximum borrowing capacity

$ 1,200,000,000

Unused borrowing capacity

939,000,000

Line of credit facility letters of credit outstanding

$ 1,310,000,000

$ 1,137,000,000

Interest coverage required (minimum) through December 31, 2013

2.75

Debt Instrument, Redemption Price, Percentage

100.00%

Percent of the principal amount thereof plus accrued and unpaid interest

101.00%

Subsidiaries' credit agreements

Long Term Debt And Other Financing Arrangement [Line Items]

Unused borrowing capacity

$ 39,000,000

Minimum [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Senior notes indentures minimum required fixed charge coverage ratio prior to incurring certain types of indebtedness

2

North America

Long Term Debt And Other Financing Arrangement [Line Items]

North American Program maximum facility size

$ 130,000,000

Additional financing from second priority facility

50,000,000

Outstanding third party investments in securitized accounts receivable bank program

30,000,000

0

Interest expense recognized from securitization of receivables

3,000,000

2,000,000

$ 2,000,000

Europe

Long Term Debt And Other Financing Arrangement [Line Items]

Outstanding third party investments in securitized accounts receivable bank program

$ 160,000,000

174,000,000

Term of Commitments

1 year

Bank facility cancellation notification

90 days

Loss on sale of trade accounts receivable

$ 3,000,000

$ 3,000,000

$ 4,000,000

Financing Cost Related To Sale Of Securitized Receivables

2.00%

2.00%

2.00%

Expiration of Former Revolving Credit Agreement due 2014

Long Term Debt And Other Financing Arrangement [Line Items]

Line of credit facility, maximum borrowing capacity

$ 850,000,000

Expiration Of Tranche B Term Facility

Long Term Debt And Other Financing Arrangement [Line Items]

Line of credit facility, maximum borrowing capacity

213,000,000

8 1/8 Percent Senior Notes due in 2015

Long Term Debt And Other Financing Arrangement [Line Items]

Debt Instrument, Periodic Payment, Percentage of Principal Amount

3.00%

Senior note rate

7.75%

Amount of debt offered for exchange by the company

$ 500,000,000

$ 225,000,000

$ 225,000,000

Amount of debt tendered for exchange by the holders

$ 175,000,000

$ 325,000,000

$ 181,000,000

Debt instrument redemption price as percentage of principal amount prior quarter

103.40%

104.00%

104.35%

Amount of debt tendered for exchange by the holders on April 6, 2012

$ 44,000,000

Debt instrument redemption price as percentage of principal amount current quarter

103.88%

Senior Notes Due 2020, 6.875% [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Expenses related to redemption

$ 8,000,000

$ 16,000,000

Tranche A Term Facility due March 22, 2017

Long Term Debt And Other Financing Arrangement [Line Items]

Maturities and sinking fund requirement applicable to long term debt 2014

$ 23,000,000

Line of credit facility, maximum borrowing capacity

$ 300,000,000

Line of credit facility letters of credit outstanding

$ 270,000,000

Tranche A Term Facility due March 22, 2017 | London Interbank Offered Rate (LIBOR)

Long Term Debt And Other Financing Arrangement [Line Items]

Basis spread on variable rate

175.00%

Tranche A Term Facility due March 22, 2017 | London Interbank Offered Rate (LIBOR) | Initial Spread

Long Term Debt And Other Financing Arrangement [Line Items]

Basis spread on variable rate

100.00%

Tranche A Term Facility due March 22, 2017 | London Interbank Offered Rate (LIBOR) | Ending Spread

Long Term Debt And Other Financing Arrangement [Line Items]

Basis spread on variable rate

75.00%

Tranche A Term Facility due March 22, 2017 | JP Morgan Chase Prime Rate

Long Term Debt And Other Financing Arrangement [Line Items]

Basis spread on variable rate

75.00%

Tranche A Term Facility due March 22, 2017 | Federal Funds Effective Rate | Initial Spread

Long Term Debt And Other Financing Arrangement [Line Items]

Basis spread on variable rate

50.00%

Tranche A Term Facility due March 22, 2017 | Federal Funds Effective Rate | Ending Spread

Long Term Debt And Other Financing Arrangement [Line Items]

Basis spread on variable rate

75.00%

Seven Point Seven Five Percentage Senior Notes Due Two Thousand Eighteen [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Expenses related to redemption

$ 13,000,000

Five Point Three Seven Five Percent Senior Notes Due December 15 2024 [Member] [Domain]

Long Term Debt And Other Financing Arrangement [Line Items]

Line of credit facility letters of credit outstanding

$ 225,000,000

Other Debt [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Unsecured debt

$ 102,000,000

Senior Credit Facility

Long Term Debt And Other Financing Arrangement [Line Items]

Borrowings reduced in basis points to applicable margin, resulting from senior secured leverage ratio below minimum

0.0025

Increase (decrease) in basis points to applicable margin, resulting from senior secured leverage ratio below minimum

(0.25%)

0.50%

Commitment fee basis points

0.30%

Senior Credit Facility | Minimum [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Senior secured leverage ratio

2.25

Senior Credit Facility | Maximum [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Senior secured leverage ratio

3.25

commitment fee [Domain]

Long Term Debt And Other Financing Arrangement [Line Items]

Borrowings reduced in basis points to applicable margin, resulting from senior secured leverage ratio below minimum

0.0025

Increase (decrease) in basis points to applicable margin, resulting from senior secured leverage ratio below minimum

0.40%

5% Senior Notes Due 2026

Long Term Debt And Other Financing Arrangement [Line Items]

Line of credit facility letters of credit outstanding

$ 500,000,000

Senior Notes Due 2024, 5.375% [Member] | Senior Notes [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Debt Instrument, Redemption Price, Percentage

105.375%

Revolving Credit Facility [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Line of credit facility, maximum borrowing capacity

$ 1,200,000,000

Unused borrowing capacity

900,000,000

Line of credit facility letters of credit outstanding

300,000,000

Revolving Credit Facility [Member] | Revolving Credit Facility [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Line of credit facility, maximum borrowing capacity

$ 1,200,000,000

Revolving Credit Facility [Member] | Tranche A Term Facility due March 22, 2017

Long Term Debt And Other Financing Arrangement [Line Items]

Line of credit facility letters of credit outstanding

270,000,000

Revolving Credit Facility [Member] | Letter of Credit

Long Term Debt And Other Financing Arrangement [Line Items]

Line of credit facility letters of credit outstanding

0

Revolving Credit Facility [Member] | Five Point Three Seven Five Percent Senior Notes Due December 15 2024 [Member] [Domain]

Long Term Debt And Other Financing Arrangement [Line Items]

Line of credit facility letters of credit outstanding

$ 225,000,000

Debt Instrument, Redemption Price, Percentage

35.00%

Revolving Credit Facility [Member] | 5% Senior Notes Due 2026

Long Term Debt And Other Financing Arrangement [Line Items]

Line of credit facility letters of credit outstanding

$ 500,000,000

Forecast | Tranche A Term Facility due March 22, 2017

Long Term Debt And Other Financing Arrangement [Line Items]

Line of Credit Facility, Periodic Payment, Principal

$ 195,000,000

$ 5,625,000

$ 7,500,000

Tenneco Inc. (Parent Company) | Senior Notes Due 2020, 6.875% [Member] | Senior Notes [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Senior note rate

6.875%

Line of credit facility letters of credit outstanding

$ 500,000,000

Tenneco Inc. (Parent Company) | 5% Senior Notes Due 2026 | Senior Notes [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Senior note rate

5.00%

Line of credit facility letters of credit outstanding

$ 500,000,000

Debt Instrument, Redemption Price, Percentage

105.00%

Tenneco Inc. (Parent Company) | Senior Notes Due 2024, 5.375% [Member] | Senior Notes [Member]

Long Term Debt And Other Financing Arrangement [Line Items]

Senior note rate

5.375%

5.375%

Line of credit facility letters of credit outstanding

$ 225,000,000

$ 225,000,000

Long-Term Debt, Short-Term De62

Long-Term Debt, Short-Term Debt, and Financing Arrangements - Short-Term Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Debt Disclosure [Abstract]
Maturities classified as current	$ 3	$ 1
Short-term borrowings	87	85
Total short-term debt	$ 90	$ 86

Long-Term Debt, Short-Term De63

Long-Term Debt, Short-Term Debt, and Financing Arrangements - Notes Payable (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Short-term Debt [Line Items]
Outstanding borrowings at end of year	$ 87	$ 85
Notes Payable Current
Short-term Debt [Line Items]
Outstanding borrowings at end of year	$ 87	$ 85
Weighted average interest rate on outstanding borrowings at end of year(b)	2.80%	3.20%
Approximate maximum month-end outstanding borrowings during year	$ 193	$ 178
Approximate average month-end outstanding borrowings during year	$ 177	$ 118
Weighted average interest rate on average month-end outstanding borrowings during year(b)	2.40%	3.00%

Long-Term Debt, Short-Term De64

Long-Term Debt, Short-Term Debt, and Financing Arrangements - Financing Arrangements (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term debt	$ 1,294,000,000	$ 1,124,000,000
Long-term debt	1,307,000,000	1,136,000,000
Committed Credit Facilities, Commitments	1,598,000,000
Committed Credit Facilities, Borrowings	659,000,000
Committed Credit Facilities, Letter of Credit	0
Committed Credit Facilities, Available	939,000,000
Long-term Debt, Gross	1,310,000,000	$ 1,137,000,000
Tenneco Inc. revolving credit agreement
Debt Instrument [Line Items]
Committed Credit Facilities, Commitments	1,200,000,000
Committed Credit Facilities, Borrowings	300,000,000
Committed Credit Facilities, Letter of Credit	0
Committed Credit Facilities, Available	900,000,000
Tranche A Term Facility
Debt Instrument [Line Items]
Committed Credit Facilities, Commitments	270,000,000
Committed Credit Facilities, Borrowings	270,000,000
Subsidiaries' credit agreements
Debt Instrument [Line Items]
Committed Credit Facilities, Commitments	128,000,000
Committed Credit Facilities, Borrowings	89,000,000
Committed Credit Facilities, Available	39,000,000
Tranche A Term Facility due March 22, 2017
Debt Instrument [Line Items]
Long-term Debt, Gross	270,000,000
Five Point Three Seven Five Percent Senior Notes Due December 15 2024 [Member] [Domain]
Debt Instrument [Line Items]
Long-term debt	221,000,000
Unamortized Debt Issuance Expense	4,000,000
Long-term Debt, Gross	225,000,000
5% Senior Notes Due 2026
Debt Instrument [Line Items]
Long-term debt	492,000,000
Unamortized Debt Issuance Expense	8,000,000
Long-term Debt, Gross	500,000,000
Other Debt [Member]
Debt Instrument [Line Items]
Unsecured Debt	102,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Committed Credit Facilities, Available	900,000,000
Long-term Debt, Gross	300,000,000
Revolving Credit Facility [Member] | Tranche A Term Facility due March 22, 2017
Debt Instrument [Line Items]
Long-term debt	269,000,000
Unamortized Debt Issuance Expense	1,000,000
Long-term Debt, Gross	270,000,000
Revolving Credit Facility [Member] | Five Point Three Seven Five Percent Senior Notes Due December 15 2024 [Member] [Domain]
Debt Instrument [Line Items]
Long-term debt	221,000,000
Unamortized Debt Issuance Expense	4,000,000
Long-term Debt, Gross	225,000,000
Revolving Credit Facility [Member] | 5% Senior Notes Due 2026
Debt Instrument [Line Items]
Long-term debt	492,000,000
Unamortized Debt Issuance Expense	8,000,000
Long-term Debt, Gross	$ 500,000,000

Long-Term Debt, Short-Term De65

Long-Term Debt, Short-Term Debt, and Financing Arrangements - Financial Ratios Under Senior Credit Facility (Detail)	3 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016
Debt Instrument [Line Items]
Leverage Ratio Required Each Quarter Thereafter	3.50
Required
Debt Instrument [Line Items]
Leverage Ratio (maximum)	3.5	3.5	3.5	3.5
Interest Coverage Ratio (minimum)	2.75	2.75	2.75	2.75
Actual
Debt Instrument [Line Items]
Leverage Ratio (maximum)	1.45	1.52	1.45	1.54
Interest Coverage Ratio (minimum)	14.92	14.26	13.93	13.9

Long-Term Debt, Short-Term De66

Long-Term Debt, Short-Term Debt, and Financing Arrangements - Proforma Consolidated Leverage Ratio (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Greater than or equal to 3.0x
Line of Credit Facility [Line Items]
Maximum aggregate principal amount of purchases, cancellations and redemptions of senior notes	$ 20
Greater than or equal to 2.5x
Line of Credit Facility [Line Items]
Maximum aggregate principal amount of purchases, cancellations and redemptions of senior notes	100
Greater than or equal to 2.0x
Line of Credit Facility [Line Items]
Maximum aggregate principal amount of purchases, cancellations and redemptions of senior notes	$ 200
Less than 2.0x
Line of Credit Facility [Line Items]
Less than 2.0x	no limit
Europe
Line of Credit Facility [Line Items]
Financing Cost Related To Sale Of Securitized Receivables	2.00%	2.00%	2.00%

Financial Instruments - Carryin

Financial Instruments - Carrying and Estimated Fair Value (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt (including current maturities)	$ 1,294	$ 1,124
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt (including current maturities)	1,297	1,125
Asset derivative contracts	0	1
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt (including current maturities)	1,311	1,160
Asset derivative contracts	$ 0	$ 1

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) $ in Millions	Dec. 31, 2016USD ($)Agreement	Dec. 31, 2015USD ($)
Financial Instruments [Line Items]
Maximum percentage of stock of certain first tier foreign subsidiaries pledged to secure senior credit facility	66.00%
Line of credit facility letters of credit outstanding	$ 31
NegotiableFinancialInstrumentsNotRedeemedAndNotUsedForVendorPayment	1	$ 1
Negotiable financial instruments not redeemed and used for vendor payment classified as notes payable	12	15
Negotiable financial instruments received from OE customer not redeemed	5	8
Negotiable financial instruments received classified as other current assets	5	8
Fair Value, Inputs, Level 1
Financial Instruments [Line Items]
Fair value of long term debt	725	748
Fair Value, Inputs, Level 2
Financial Instruments [Line Items]
Fair value of long term debt	571	390
Fair Value, Inputs, Level 3
Financial Instruments [Line Items]
Fair value of long term debt	$ 15	22
TMEL and Walker Plans
Financial Instruments [Line Items]
Number of performance guarantee agreements | Agreement	2
Number of group benefit plans under the agreement | Agreement	2
Maximum amount payable for pension performance guarantees	$ 7
Percentage of liability considered to determine maximum amount payable for pension performance guarantees	105.00%
Percentage of the pension obligation recognized for participating employers	100.00%
Pension obligation of participating employers recognized on the balance sheet	$ 19	11
TMEL and Futaba
Financial Instruments [Line Items]
Maximum amount reimbursable under indemnity agreement	7
Other subsidiaries | China
Financial Instruments [Line Items]
Restricted cash	2	1
Foreign Exchange Forward
Financial Instruments [Line Items]
Fair value of derivative liability	$ 1
Fair value of derivative asset		$ 1

Financial Instruments - Summari

Financial Instruments - Summarization for Foreign Currency Forward Purchase and Sale Contracts (Detail) - Dec. 31, 2016 - Foreign Exchange Forward ¥ in Millions, $ in Millions	USD ($)	JPY (¥)
Long [Member] | United Kingdom, Pounds
Derivative, Notional Amount	$ 9
Long [Member] | Euro Member Countries, Euro
Derivative, Notional Amount	21
Long [Member] | Japan, Yen
Derivative, Notional Amount	388
Long [Member] | South Africa, Rand
Derivative, Notional Amount	131
Long [Member] | United States of America, Dollars
Derivative, Notional Amount	5
Short [Member] | Canada, Dollars
Derivative, Notional Amount	2
Short [Member] | Euro Member Countries, Euro
Derivative, Notional Amount	3
Short [Member] | Japan, Yen
Derivative, Notional Amount | ¥		¥ 60
Short [Member] | South Africa, Rand
Derivative, Notional Amount | ¥		¥ 17
Short [Member] | United States of America, Dollars
Derivative, Notional Amount	$ 45

Income Taxes - Income before in

Income Taxes - Income before income taxes and noncontrolling interests (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
U.S. income before income taxes	$ 68	$ 198	$ 130
Foreign income before income taxes	368	254	271
Earnings before income taxes and noncontrolling interests	$ 436	$ 452	$ 401

Income Taxes - Comparative Anal

Income Taxes - Comparative Analysis of Components of Income Tax Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current
U.S. federal	$ (7)	$ 64	$ 38
State and local	4	5	3
Foreign	85	83	92
Total current income tax expenses	82	152	133
Deferred
U.S. federal	(91)	(1)	2
State and local	(1)	1	7
Foreign	13	(3)	(11)
Total deferred income tax expenses	(79)	(3)	(2)
Income tax expense	$ 3	$ 149	$ 131

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
U.S. Federal statutory rate	35.00%
Reducing in tax loss carryforward due to realization domestic and state tax loss	$ 3	$ 3
Deferred Tax Assets, Valuation Allowance	145	127
Income tax expense (benefit)	3	149	$ 131
Impact on earnings related to reversal of valuation allowance	110
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount		15	11
Unremitted earnings of foreign subsidiaries	795
Estimated income tax liability related to unremitted earnings of foreign subsidiaries	159
Uncertain tax positions that would affect the effective tax rate if recognized	108	110	101
Liability for interest on unrecognized tax benefits	6	6	6
Estimated decrease in unrecognized tax benefits related to the expiration of foreign statute of limitations and the conclusion of foreign income tax examinations that may occur within the coming year	17
Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Penalties accrued	1	1	1
Accrued interest related to uncertain tax positions	1	1	1
Liability for penalties on unrecognized tax benefits	$ 1	$ 2	$ 3

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Income Taxes Computed at Statutory U.S. Federal Income Tax Rate to Income Tax Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income tax expense computed at the statutory U.S. federal income tax rate	$ 152	$ 158	$ 140
Foreign income taxed at different rates	(43)	(15)	(21)
Taxes on repatriation of dividends	(105)	9	4
Remeasurement of estimated tax on unremitted earnings	0	(4)	0
State and local taxes on income, net of U.S. federal income tax benefit	3	11	8
Changes in valuation allowance for tax loss carryforwards and credits	18	13	12
Foreign tax holidays	0	(7)	(6)
Investment and R&D tax credits	(6)	(26)	(10)
Foreign earnings subject to U.S. federal income tax	4	3	7
Adjustment of prior years taxes	0	2	(2)
Tax contingencies	(7)	4	0
Other	(13)	1	(1)
Income tax expense	$ 3	$ 149	$ 131

Income Taxes - Components of Ou

Income Taxes - Components of Our Net Deferred Tax Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
State	$ 13	$ 14
Foreign	92	72
Tax credits	83	89
Postretirement benefits other than pensions	55	54
Pensions	48	50
Bad debts	3	2
Sales allowances	7	8
Payroll and other accruals	39	34
Other accruals	46	55
Valuation allowance	(145)	(127)
Total deferred tax assets	241	251
Tax over book depreciation	53	40
Total deferred tax liabilities	53	40
Net deferred tax assets	$ 188	$ 211

Income Taxes - Reconciliation75

Income Taxes - Reconciliation of Deferred Taxes to Deferred Taxes Shown In Balance Sheet (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Reducing in Tax Loss Carryforward Due To Realization Foreign Tax Loss	$ 7	$ 13
Balance Sheet:
Non-current portion - deferred tax asset	195	218
Non-current portion - deferred tax liability	(7)	(7)
Net deferred tax assets	188	211
Deferred Tax Assets, Valuation Allowance	145	127
Income tax expense	3	$ 149	$ 131
Impact on earnings related to reversal of valuation allowance	$ 110

Income Taxes - Reconciliation76

Income Taxes - Reconciliation of our Uncertain Tax Positions (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Uncertain tax positions -
Balance January 1	$ 123	$ 114	$ 115
Gross increases in tax positions in current period	6	7	8
Gross increases in tax positions in prior period	2	14	5
Gross decreases in tax positions in prior period	(5)	(4)	(5)
Gross decreases - settlements	0	(1)	(2)
Gross decreases - statute of limitations expired	(15)	(7)	(7)
Balance December 31	$ 111	$ 123	$ 114

Income Taxes - Tax Years Open t

Income Taxes - Tax Years Open to Examination in Primary Jurisdictions (Detail)	12 Months Ended
	Dec. 31, 2016
United States - due to NOL
Income Tax Contingency [Line Items]
Tax years open to examination in primary jurisdictions	2,006
China
Income Tax Contingency [Line Items]
Tax years open to examination in primary jurisdictions	2,006
Spain
Income Tax Contingency [Line Items]
Tax years open to examination in primary jurisdictions	2,004
United Kingdom
Income Tax Contingency [Line Items]
Tax years open to examination in primary jurisdictions	2,013
Brazil
Income Tax Contingency [Line Items]
Tax years open to examination in primary jurisdictions	2,011
Canada
Income Tax Contingency [Line Items]
Tax years open to examination in primary jurisdictions	2,011
Belgium
Income Tax Contingency [Line Items]
Tax years open to examination in primary jurisdictions	2,014
Germany
Income Tax Contingency [Line Items]
Tax years open to examination in primary jurisdictions	2,014
United Kingdom
Income Tax Contingency [Line Items]
Tax years open to examination in primary jurisdictions	2,014

Common Stock - Additional Infor

Common Stock - Additional Information (Detail) - USD ($)	Feb. 01, 2017	May 31, 2014	Dec. 31, 1999	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Feb. 28, 2017	Oct. 31, 2015	Jan. 31, 2015	Jan. 31, 2014	Dec. 31, 2013	May 15, 2013	May 13, 2009	Mar. 12, 2002
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number				606,525	759,327	940,965	1,125,527		606,525	1,144,719
Authorized common stock available for issuance under the plan				135,000,000					135,000,000
Common stock, par value				$ 0.01					$ 0.01
Common stock, shares issued				65,891,930					65,891,930	65,067,132
Treasury stock shares				11,655,938				3,244,692	11,655,938	7,473,325	3,244,692					2,844,692
Term for stock options (in years)			3 years						1 day	1 day	5 years
Restriction period for restricted common stock			3 years
Decrease in basic earnings per share									$ 0.03	$ 0.06
Share based compensation									$ 14,000,000	$ 15,000,000	$ 13,000,000
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options									$ 1,000,000	$ 6,000,000	12,000,000
Weighted average grant-date fair value of options granted										$ 26.48
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number				560,238					560,238
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value				$ 12,000,000					$ 12,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price				$ 37.01					$ 37.01
Weighted Average Remaining Life in Years				2 years 7 months 6 days	2 years 9 months 17 days	3 years 1 month 6 days	3 years 6 months			3 years 7 months 6 days
Total Intrinsic value of options exercised					$ 4,000,000	$ 5,000,000	$ 1,000,000		$ 11,000,000	$ 10,000,000	30,000,000
Total fair value of shares vested									$ 4,000,000	$ 6,000,000	$ 6,000,000
Weighted average grant-date fair value of restricted stock granted									$ 36.36	$ 52.85	$ 55.26
Total fair value of restricted shares vested									$ 9,000,000	$ 7,000,000	$ 8,000,000
Number of shares authorized to be repurchased														350,000,000	400,000
Stock repurchased during the period								$ 22,000,000	$ 225,000,000	$ 213,000,000
Treasury stock average cost per share								$ 56.06	$ 53.89	$ 50.32
Share-based Compensation, Effect on Earnings Per Share, Basic									$ 0.01	$ 0.03	$ 0.06
Stock Appreciation Rights (SARs) [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Restriction period for restricted common stock									3 years
Stock Option
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Compensation expense related to nonqualified stock options									$ 1,000,000	$ 2,000,000	$ 3,000,000
Unrecognized compensation costs				1,000,000					$ 1,000,000
Unrecognized compensation costs, weighted average period									1 month 6 days
Employee Stock Option [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Cash received from stock option exercises									$ 16,000,000	4,000,000	10,000,000
Restricted stock, restricted stock units, long term performance units, SARs
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Unrecognized compensation costs				22,000,000					$ 22,000,000
Unrecognized compensation costs, weighted average period									1 year 9 months 18 days
Share based compensation									$ 18,000,000	$ 12,000,000	$ 13,000,000
Restricted Stock
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Unrecognized compensation costs				$ 13,000,000					$ 13,000,000
Unrecognized compensation costs, weighted average period									1 year 10 months 24 days
Weighted average grant-date fair value of restricted stock granted				$ 55.45	$ 55.02		$ 35.98
Supplemental Stock Ownership Plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Authorized treasury shares available for purchase under the supplemental stock ownership plan			1,100,000
2002 Long-Term Incentive Plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Authorized common stock available for issuance under the plan																			4,000,000
2006 Long-Term Incentive Plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Authorized common stock available for issuance under the plan																	3,500,000	2,300,000
Count of each share from a stock option award against shares available for issuance under the plan																		1
Count of each share from a full value award against shares available for issuance under the plan																	1.49	1.25
Shares of common stock remain authorized for delivery				2,541,470					2,541,470
Less - Common Stock Held as Treasury Stock, at Cost
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock Repurchase Program, Authorized Amount													$ 200,000,000
Less - Common Stock Held as Treasury Stock, at Cost | Open Market [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock repurchased during period		400,000							4,182,613	4,228,633
Maximum [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Term for stock options (in years)			20 years
Minimum [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Term for stock options (in years)			7 years
2012 Through 2014 [Member] | Performance Shares [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Restriction period for restricted common stock									3 years
2014 Through 2016 [Member] | Performance Shares [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Restriction period for restricted common stock									3 years
Subsequent event
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of shares authorized to be repurchased												400,000,000
Remaining amount authorized to be repurchased												$ 112,000,000
Quarterly cash divided declared (in dollars per share)	$ 0.25

Common Stock - Assumptions Used

Common Stock - Assumptions Used for Calculating Fair Values of Stock Option Awards (Detail) - $ / shares	1 Months Ended	12 Months Ended
	Dec. 31, 1999	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock Options Granted
Weighted average grant date fair value, per share (in dollars per share)			$ 0	$ 26.46
Weighted average assumptions used:
Expected volatility		0.00%	0.00%	52.80%
Expected lives (in years)	3 years	1 day	1 day	5 years
Risk-free interest rates		0.00%	0.00%	1.70%
Dividends yields		0.00%	0.00%	0.00%

Common Stock - Stock Options St

Common Stock - Stock Options Status and Activity (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares Under Option Outstanding Beginning Balance	759,327	940,965	1,125,527	1,144,719	1,144,719
Share Under Option, Canceled	(4,499)
Shares Under Option, Forfeited		(3,183)	(788)
Shares Under Option, Exercised	(148,303)	(178,455)	(183,774)	(19,192)
Shares Under Option Outstanding Ending Balance	606,525	759,327	940,965	1,125,527	606,525	1,144,719
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted Average Exercise Prices, Outstanding, Beginning Balance	$ 39.13	$ 37.46	$ 35.12	$ 34.69	$ 34.69
Weighted Average Exercise Price, Canceled	24.07
Weighted Average Exercise Prices, Forfeited		56.23	51.88
Weighted Average Exercise Prices, Exercised	42.01	30.17	23.07	9.31
Weighted Average Exercise Prices, Outstanding, Ending Balance	$ 38.54	$ 39.13	$ 37.46	$ 35.12	$ 38.54	$ 34.69
Weighted Average Remaining Life in Years	2 years 7 months 6 days	2 years 9 months 17 days	3 years 1 month 6 days	3 years 6 months		3 years 7 months 6 days
Aggregate Intrinsic Value, Outstanding, Beginning Balance	$ 12	$ 14	$ 12	$ 19	$ 19
Aggregate Intrinsic Value, Exercised		4	5	1	11	$ 10	$ 30
Aggregate Intrinsic Value, Outstanding, Ending Balance	$ 12	$ 12	$ 14	$ 12	$ 12	$ 19

Common Stock - Nonvested Restri

Common Stock - Nonvested Restricted Shares (Detail) - $ / shares	3 Months Ended				12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Granted					$ 36.36	$ 52.85	$ 55.26
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested Restricted Shares, Beginning Balance	611,896	635,718	688,131	496,842	496,842
Nonvested Restricted Shares, Granted	3,038	3,368		347,398
Restricted Shares, Vested	(1,999)	(23,705)	(20,221)	(156,109)
Nonvested Restricted Shares, Forfeited	(21,519)	(3,485)	(32,192)
Nonvested Restricted Shares, Ending Balance	591,416	611,896	635,718	688,131	591,416	496,842
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Nonvested, Weighted Average Grant Date Fair Value, Beginning of Period	$ 44.70	$ 44.42	$ 44.90	$ 51.65	$ 51.65
Granted	55.45	55.02		35.98
Vested	52.75	37.37	42.32	46.50
Forfeited	47.46	53.34	53.91
Nonvested, Weighted Average Grant Date Fair Value, End of Period	$ 44.63	$ 44.70	$ 44.42	$ 44.90	$ 44.63	$ 51.65

Preferred Stock - Additional In

Preferred Stock - Additional Information (Detail) - $ / shares	Dec. 31, 2016	Dec. 31, 2015
Equity [Abstract]
Authorized shares	50,000,000	50,000,000
Par value	$ 0.01	$ 0.01
Outstanding shares	0	0

Pension Plans, Postretirement83

Pension Plans, Postretirement and Other Employee Benefits - Additional Information (Detail) $ in Millions	Jan. 02, 2012retirement_plan	Feb. 29, 2016USD ($)	Mar. 31, 2017USD ($)	Sep. 30, 2015	Dec. 31, 2014USD ($)retiree	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Pension and Other Postretirement Benefits Disclosure [Line Items]
Pension benefit obligations						$ 710
Pension benefit obligations with funding requirements						641
Pension Fund assets available to fund pension benefit obligations						561
Pension benefit obligations with no funding requirements						$ 69
Acceptable tolerance limit of investment allocations for securities						5.00%
Employer contributions		$ 18				$ 37
Expected contributions in 2013						32
Non-cash contribution charge		$ 72				$ 21
Minimum retirement age for eligible employees of the post retirement plans						55 years
Minimum years of service for eligible employees of the post retirement plans						10 years
Prior period correction					$ 11
Defined Benefit Plan, Prior Period Adjustment, Number of Retirees Entitled to Benefits Not Included | retiree					170
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate						7.00%	7.00%	6.50%
Defined Benefit Plan Ultimate Health Care Cost Year Five						4.50%	4.50%	4.50%
Retirement Savings Plan | retirement_plan	1
Maximum percentage of salary deferral allowed under the Employee Stock Ownership Plans						75.00%
Defined Compensation Plan, Amended Employee Match Percentage on One Hundred Percent of Employee Contributions						3.00%
Defined Compensation Plan, Amended Employee Match Percentage on Fifty Percent of Employee Contributions						50.00%
Expense recorded relating to employee matching contribution						$ 28	$ 27	$ 25
Maximum [Member]
Pension and Other Postretirement Benefits Disclosure [Line Items]
Defined Compensation Plan, Amended Employee Match Percentage on Fifty Percent of Employee Contributions						5.00%
Postretirement
Pension and Other Postretirement Benefits Disclosure [Line Items]
Employer contributions						$ 9	$ 9
Percent of eligible employees who participated in voluntary buyout, more than				60.00%
Non-cash contribution charge						50
One percentage point increase effect on postretirement benefit obligation						15
One percentage point decrease effect on postretirement benefit obligation						12
Postretirement | Maximum [Member]
Pension and Other Postretirement Benefits Disclosure [Line Items]
Defined benefit plan effect of one percentage point increase on service and interest cost components						1
Defined benefit plan effect of one percentage point decrease on service and interest cost components						$ 1
Postretirement | Minimum [Member]
Pension and Other Postretirement Benefits Disclosure [Line Items]
Defined Compensation Plan, Amended Employee Match Percentage on One Hundred Percent of Employee Contributions						100.00%
Defined Compensation Plan, Amended Employee Match Percentage on Fifty Percent of Employee Contributions						3.00%
Pension Plans, Defined Benefit
Pension and Other Postretirement Benefits Disclosure [Line Items]
Expected contributions in 2013						$ 10
Equity Securities
Pension and Other Postretirement Benefits Disclosure [Line Items]
Targeted pension plan allocations in debt securities						70.00%	51.00%
Debt Securities
Pension and Other Postretirement Benefits Disclosure [Line Items]
Targeted pension plan allocations in debt securities						30.00%	49.00%
Forecast
Pension and Other Postretirement Benefits Disclosure [Line Items]
Employer contributions			$ 9
Non-cash contribution charge			$ 6

Pension Plans, Postretirement84

Pension Plans, Postretirement and Other Employee Benefits - Pension Plan Assets Classes of Securities (Detail)	Dec. 31, 2016	Dec. 31, 2015
United States Pension Plans of US Entity, Defined Benefits | Equity Securities
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	70.00%	51.00%
United States Pension Plans of US Entity, Defined Benefits | Debt Securities
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	30.00%	49.00%
Foreign | Equity Securities
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	61.00%	61.00%
Foreign | Debt Securities
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	34.00%	30.00%
Foreign | Real Estate
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	2.00%	2.00%
Foreign | All Other
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]
Debt Securities	3.00%	7.00%

Pension Plans, Postretirement85

Pension Plans, Postretirement and Other Employee Benefits - Plan Assets Using Fair Value Hierarchy (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 561
United States Pension Plans of US Entity, Defined Benefits
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	168	$ 267
United States Pension Plans of US Entity, Defined Benefits | U.S. large cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	77	63
United States Pension Plans of US Entity, Defined Benefits | U.S. mid cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		8
United States Pension Plans of US Entity, Defined Benefits | U.S. Small Cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	15	15
United States Pension Plans of US Entity, Defined Benefits | Non-U.S. mid cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	15	25
United States Pension Plans of US Entity, Defined Benefits | Emerging Markets
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	5	8
United States Pension Plans of US Entity, Defined Benefits | U.S. corporate bonds
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	2	35
United States Pension Plans of US Entity, Defined Benefits | U.S. other fixed income
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	54	113
United States Pension Plans of US Entity, Defined Benefits | Fair Value, Inputs, Level 1
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	24	35
United States Pension Plans of US Entity, Defined Benefits | Fair Value, Inputs, Level 1 | U.S. large cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	22	33
United States Pension Plans of US Entity, Defined Benefits | Fair Value, Inputs, Level 1 | Cash held in bank accounts
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2	2
United States Pension Plans of US Entity, Defined Benefits | Fair Value, Inputs, Level 2
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		0
United States Pension Plans of US Entity, Defined Benefits | Fair Value, Inputs, Level 3
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		0
Foreign
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	124	117
Foreign | U.S. large cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	26	23
Foreign | U.S. mid cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		2
Foreign | Non-U.S. large cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	46	34
Foreign | Non-U.S. mid cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	8	15
Foreign | Non-U.S. small cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		1
Foreign | Emerging Markets
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	1
Foreign | Non-U.S. treasuries/government bonds
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	29	28
Foreign | Non-U.S. corporate bonds
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	12	12
Foreign | Non-U.S. municipal obligations
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets	1	1
Foreign | Non-U.S. real estate
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Alternative Investments, Fair Value of Plan Assets		1
Foreign | Fair Value, Inputs, Level 1
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	27	44
Foreign | Fair Value, Inputs, Level 1 | U.S. large cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2	5
Foreign | Fair Value, Inputs, Level 1 | U.S. mid cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1	1
Foreign | Fair Value, Inputs, Level 1 | Non-U.S. large cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	7	13
Foreign | Fair Value, Inputs, Level 1 | Non-U.S. mid cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		1
Foreign | Fair Value, Inputs, Level 1 | Emerging Markets
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2	2
Foreign | Fair Value, Inputs, Level 1 | U.S. treasuries/government bonds
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1
Foreign | Fair Value, Inputs, Level 1 | Non-U.S. treasuries/government bonds
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1	1
Foreign | Fair Value, Inputs, Level 1 | Non-U.S. corporate bonds
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	4	7
Foreign | Fair Value, Inputs, Level 1 | Non-U.S. other fixed income
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1	2
Foreign | Fair Value, Inputs, Level 1 | Non-U.S. real estate
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1	1
Foreign | Fair Value, Inputs, Level 1 | Cash held in bank accounts
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	7	11
Foreign | Fair Value, Inputs, Level 2
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	209	188
Foreign | Fair Value, Inputs, Level 2 | U.S. large cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	30	24
Foreign | Fair Value, Inputs, Level 2 | U.S. mid cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2	5
Foreign | Fair Value, Inputs, Level 2 | Non-U.S. large cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	67	65
Foreign | Fair Value, Inputs, Level 2 | Non-U.S. mid cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	15	15
Foreign | Fair Value, Inputs, Level 2 | Non-U.S. small cap
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	10	2
Foreign | Fair Value, Inputs, Level 2 | Emerging Markets
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	3	4
Foreign | Fair Value, Inputs, Level 2 | U.S. corporate bonds
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1	3
Foreign | Fair Value, Inputs, Level 2 | Non-U.S. treasuries/government bonds
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	38	28
Foreign | Fair Value, Inputs, Level 2 | Non-U.S. corporate bonds
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	23	20
Foreign | Fair Value, Inputs, Level 2 | Non-U.S. mortgage backed securities
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		3
Foreign | Fair Value, Inputs, Level 2 | Non-U.S. asset backed securities
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		2
Foreign | Fair Value, Inputs, Level 2 | Non-U.S. real estate
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	5	5
Foreign | Fair Value, Inputs, Level 2 | Insurance contracts
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	13	12
Foreign | Fair Value, Inputs, Level 2 | Cash held in bank accounts
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2
Foreign | Fair Value, Inputs, Level 3
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	9	8
Foreign | Fair Value, Inputs, Level 3 | Insurance contracts
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 9	$ 8

Pension Plans, Postretirement86

Pension Plans, Postretirement and Other Employee Benefits - Changes in Fair Value of Level 3 Assets (Detail) - Foreign - Fair Value, Inputs, Level 3 - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]
Balance at December 31 of the previous year	$ 8	$ 9
Relating to assets still held at the reporting date	1	(1)
Ending Balance at December 31	$ 9	$ 8

Pension Plans, Postretirement87

Pension Plans, Postretirement and Other Employee Benefits - Significant Concentrations of Risk (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Investment in Tenneco stock	$ 1	$ 1
Fair Value, Inputs, Level 1
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Investment in Tenneco stock	$ 22	$ 33
Investment in Tenneco stock as a percentage of total plan assets	4.00%	5.00%

Pension Plans, Postretirement88

Pension Plans, Postretirement and Other Employee Benefits - Summary of Amount Recognised in Balance Sheets for Pension Plans and Postretirement Benefit Plan (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Feb. 29, 2016	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost			$ 6	$ 6	$ 6
Prior period correction		$ 11
Fair value at December 31 of the previous year
Employer contributions	$ 18		37
Fair value at December 31			561
Actuarial loss			5	6	4
Prior service cost			(1)
Defined Benefit Plan, Assets for Plan Benefits, Noncurrent			0	0
Noncurrent liabilities			(273)	(318)
United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at December 31 of the previous year			141
Interest cost			15	17	20
Benefits paid			(9)	(9)
Benefit obligation at December 31				141
Actuarial loss			8	8	7
Prior service cost			0	0
Foreign
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost			14	15	18
Actuarial loss			7	8	7
Prior service cost			4	5
Postretirement
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at December 31 of the previous year			141	143
Interest cost			6	6
Actuarial (gain)/loss			5	1
Benefits paid			(9)
Benefit obligation at December 31		143	143	141	143
Employer contributions			9	9
Unfunded status at December 31			(143)	(141)
Actuarial loss			48	49
Prior service cost			(4)	(6)
Net amount recognized at December 31			(99)	(98)
Current liabilities			(10)	(9)
Noncurrent liabilities			(133)	(132)
Net amount recognized			(143)	(141)
Pension Plans, Defined Benefit | United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at December 31 of the previous year			416	448
Settlement			(1)	(8)
Service cost			1	1
Interest cost			15	17
Actuarial (gain)/loss			(7)	(21)
Benefits paid			(152)	(21)
Benefit obligation at December 31		448	272	416	448
Fair value at December 31 of the previous year			304	334
Settlement			(1)
Actual return on plan assets			21	(11)
Employer contributions			20	10
Fair value at December 31		334	192	304	334
Unfunded status at December 31			(80)	(114)
Actuarial loss			146	232
Prior service cost			0	0
Net amount recognized at December 31			66	118
Current liabilities			(20)	(2)
Noncurrent liabilities			(60)	(112)
Net amount recognized			(80)	(114)
Pension Plans, Defined Benefit | Foreign
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit obligation at December 31 of the previous year			425	483
Currency rate conversion			(38)	(45)
Settlement				(2)
Service cost			8	9
Interest cost			14	15
Administrative expenses/taxes paid			(1)	(2)
Plan amendments			(1)	2
Actuarial (gain)/loss			50	(17)
Benefits paid			(20)	(19)
Participants' contributions			1	1
Benefit obligation at December 31		483	438	425	483
Fair value at December 31 of the previous year			355	392
Currency rate conversion			(33)	(38)
Settlement				(2)
Actual return on plan assets			50	8
Employer contributions			17	15
Participants' contributions			1	1
Fair value at December 31		$ 392	369	355	$ 392
Unfunded status at December 31			(69)	(68)
Actuarial loss			145	144
Prior service cost			4	5
Net amount recognized at December 31			80	81
Defined Benefit Plan, Assets for Plan Benefits, Noncurrent			9	6
Current liabilities			(2)	(3)
Noncurrent liabilities			(76)	(71)
Net amount recognized			$ (69)	$ (68)

Pension Plans, Postretirement89

Pension Plans, Postretirement and Other Employee Benefits - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the year	$ 0	$ 0	$ 0
Interest cost	6	6	6
Net amortization:
Actuarial loss	5	6	4
Prior service cost	(1)	(4)	(7)
Prior period correction	0	0	9
Net pension costs	10	8	12
United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the year	1	1	1
Interest cost	15	17	20
Expected return on plan assets	(23)	(23)	(25)
Settlement loss	72	4	21
Net amortization:
Actuarial loss	8	8	7
Net pension costs	73	7	24
Foreign
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the year	8	9	8
Interest cost	14	15	18
Expected return on plan assets	(20)	(21)	(23)
Settlement loss	0	0	0
Net amortization:
Actuarial loss	7	8	7
Prior service cost	1	1	2
Net pension costs	10	12	$ 12
Pension Plans, Defined Benefit | United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plan Disclosure [Line Items]
Interest cost	15	17
Net amortization:
Actuarial loss	146	232
Pension Plans, Defined Benefit | Foreign
Defined Benefit Plan Disclosure [Line Items]
Interest cost	14	15
Net amortization:
Actuarial loss	$ 145	$ 144

Pension Plans, Postretirement90

Pension Plans, Postretirement and Other Employee Benefits - Amounts to be Reflected as Component of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss	$ 5
Prior service cost	(1)
Total	4
United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss	146	$ 232
Prior service cost	0	0
Total	146	232
Net actuarial loss	10
Prior service cost	0
Total expected amounts that will be amortized from accumulated other comprehensive income in 2013	10
Foreign
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss	145	144
Prior service cost	4	5
Total	149	$ 149
Net actuarial loss	8
Prior service cost	1
Total expected amounts that will be amortized from accumulated other comprehensive income in 2013	$ 9

Pension Plans, Postretirement91

Pension Plans, Postretirement and Other Employee Benefits - Amounts Recognized for Pension and Postretirement Benefits in Other Comprehensive Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Change in total actuarial loss, Before-tax amount	$ 51	$ (7)
Amortization of prior service cost included in net periodic pension and postretirement cost, Before-tax amount	(1)	(3)
Amortization of actuarial loss included in net periodic pension and postretirement cost, Before-tax amount	20	23
Other comprehensive income - pension benefits, Before-tax amount	70	13
Change in total actuarial loss, Tax Benefit	(21)	2
Amortization of prior service cost included in net periodic pension and postretirement cost, Tax Benefit	0	0
Amortization of actuarial loss included in net periodic pension and postretirement cost, Tax Benefit	(8)	(4)
Other comprehensive - pension benefits, Tax Benefit	(29)	(2)
Change in total actuarial loss, Net-of-tax amount	30	(5)
Amortization of prior service cost included in net periodic pension and postretirement cost, Net-of-tax Amount	(1)	(3)
Amortization of actuarial loss included in net periodic pension and postretirement cost, Net-of-tax Amount	12	19
Other comprehensive income - pension benefits, Net-of-tax Amount	$ 41	$ 11	$ (80)

Pension Plans, Postretirement92

Pension Plans, Postretirement and Other Employee Benefits - Projected Benefit Obligation Accumulated Benefit Obligation and Fair Value of Plan Assets for All Pension Plans (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation	$ 272	$ 416
Accumulated benefit obligation	272	416
Fair value of plan assets	192	302
Foreign
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation	266	337
Accumulated benefit obligation	261	332
Fair value of plan assets	$ 188	$ 262

Pension Plans, Postretirement93

Pension Plans, Postretirement and Other Employee Benefits - Estimated Pension Plan Benefit Payments (Detail) $ in Millions	Dec. 31, 2016USD ($)
United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2,017	$ 33
2,018	14
2,019	15
2,020	16
2,021	15
2022-2026	77
Foreign
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2,017	15
2,018	15
2,019	16
2,020	18
2,021	17
2022-2026	$ 95

Pension Plans, Postretirement94

Pension Plans, Postretirement and Other Employee Benefits - Weighted Average Assumptions Used to Determine Benefit Obligations (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan Ultimate Health Care Cost Year Five	4.50%	4.50%	4.50%
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.20%	4.30%
United States Pension Plans of US Entity, Defined Benefits
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.20%	4.30%
Foreign
Weighted-average assumptions used to determine benefit obligations
Discount rate	2.80%	3.50%
Rate of compensation increase	2.50%	2.70%

Pension Plans, Postretirement95

Pension Plans, Postretirement and Other Employee Benefits - Weighted-Average Assumptions used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.30%	4.10%	4.80%
United States Pension Plans of US Entity, Defined Benefits
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.30%	4.10%	4.80%
Expected long-term return on plan assets	7.60%	7.80%	7.80%
Foreign
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	3.50%	3.20%	4.30%
Expected long-term return on plan assets	5.70%	5.90%	6.10%
Rate of compensation increase	2.70%	3.00%	3.30%

Pension Plans, Postretirement96

Pension Plans, Postretirement and Other Employee Benefits - Amounts to be Reflected as Component of Net Periodic Cost (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ 5
Prior service cost	(1)
Total	4
Postretirement
Defined Benefit Plan Disclosure [Line Items]
Prior service cost	$ (4)	$ (6)

Pension Plans, Postretirement97

Pension Plans, Postretirement and Other Employee Benefits - Estimated Subsidies Under Medicare Prescription Drug Improvement and Modernization Act (Detail) $ in Millions	Dec. 31, 2016USD ($)
Compensation and Retirement Disclosure [Abstract]
2,017	$ 10
2,018	10
2,019	10
2,020	10
2,021	9
2022-2026	$ 45

Pension Plans, Postretirement98

Pension Plans, Postretirement and Other Employee Benefits - Assumptions Used to Determine Postretirement Cost (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Discount rate, Benefit Obligation	4.20%	4.30%
Discount rate, Net Periodic Benefit Cost	4.30%	4.10%	4.80%

Segment and Geographic Area I99

Segment and Geographic Area Information - Additional Information (Details)	12 Months Ended
	Dec. 31, 2016product_segmentoperating_segmentgeographic_segment
Segment Reporting [Abstract]
Number of Reportable Segments | geographic_segment	3
Number of Product Segments | product_segment	2
Number of Operating Segments | operating_segment	6

Segment and Geographic Area 100

Segment and Geographic Area Information - Segment Information (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting [Line Items]
Net sales and operating revenues	$ 2,155	$ 2,096	$ 2,212	$ 2,136	$ 2,031	$ 2,025	$ 2,130	$ 2,023	$ 8,599	$ 8,209	$ 8,420
Revenues from external customers									8,599	8,209	8,420
Earnings before interest expense, income taxes, and noncontrolling interests	75	$ 152	$ 177	$ 124	128	$ 116	$ 155	$ 120	528	519	492
Total assets	4,342				3,967				4,342	3,967	3,996
Other
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Earnings before interest expense, income taxes, and noncontrolling interests									(188)	(87)	(124)
Total assets	0				0				0	0	0
Intersegment revenues
Segment Reporting [Line Items]
Revenues from external customers									0	0	0
Intersegment revenues | Other
Segment Reporting [Line Items]
Revenues from external customers									0	0	0
North America | Clean Air Division
Segment Reporting [Line Items]
Net sales and operating revenues									3,003	2,851	2,815
Earnings before interest expense, income taxes, and noncontrolling interests									225	244	237
Total assets	1,356				1,209				1,356	1,209	1,156
North America | Ride Performance Division
Segment Reporting [Line Items]
Net sales and operating revenues									1,234	1,313	1,351
Earnings before interest expense, income taxes, and noncontrolling interests									157	155	143
Total assets	723				692				723	692	659
North America | Intersegment revenues | Clean Air Division
Segment Reporting [Line Items]
Revenues from external customers									13	16	25
North America | Intersegment revenues | Ride Performance Division
Segment Reporting [Line Items]
Revenues from external customers									9	10	10
Europe, South America & India | Clean Air Division
Segment Reporting [Line Items]
Net sales and operating revenues									1,989	1,835	1,974
Earnings before interest expense, income taxes, and noncontrolling interests									103	52	59
Total assets	734				713				734	713	789
Europe, South America & India | Ride Performance Division
Segment Reporting [Line Items]
Net sales and operating revenues									1,019	944	1,032
Earnings before interest expense, income taxes, and noncontrolling interests									25	(5)	40
Total assets	570				499				570	499	503
Europe, South America & India | Intersegment revenues | Clean Air Division
Segment Reporting [Line Items]
Revenues from external customers									92	100	114
Europe, South America & India | Intersegment revenues | Ride Performance Division
Segment Reporting [Line Items]
Revenues from external customers									26	28	38
Asia Pacific | Clean Air Division
Segment Reporting [Line Items]
Net sales and operating revenues									1,077	1,037	1,022
Earnings before interest expense, income taxes, and noncontrolling interests									150	121	101
Total assets	647				596				647	596	593
Asia Pacific | Ride Performance Division
Segment Reporting [Line Items]
Net sales and operating revenues									277	229	226
Earnings before interest expense, income taxes, and noncontrolling interests									56	39	36
Total assets	265				226				265	226	227
Asia Pacific | Intersegment revenues | Clean Air Division
Segment Reporting [Line Items]
Revenues from external customers									3	0	0
Asia Pacific | Intersegment revenues | Ride Performance Division
Segment Reporting [Line Items]
Revenues from external customers									46	46	43
Reclass & Elims
Segment Reporting [Line Items]
Net sales and operating revenues									0	0	0
Earnings before interest expense, income taxes, and noncontrolling interests									0	0	0
Total assets	$ 47				$ 32				47	32	69
Reclass & Elims | Intersegment revenues
Segment Reporting [Line Items]
Revenues from external customers									$ (189)	$ (200)	$ (230)

Segment and Geographic Area 101

Segment and Geographic Area Information - Revenue from External Customers (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting [Line Items]
Net sales and operating revenues	$ 2,155	$ 2,096	$ 2,212	$ 2,136	$ 2,031	$ 2,025	$ 2,130	$ 2,023	$ 8,599	$ 8,209	$ 8,420
Clean Air Systems And Products
Segment Reporting [Line Items]
Net sales and operating revenues									6,069	5,723	5,811
Clean Air Systems And Products | Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									305	318	318
Clean Air Systems And Products | Original Equipment
Segment Reporting [Line Items]
Net sales and operating revenues									5,764	5,405	5,493
Clean Air Systems And Products | Original Equipment | OE Value-add
Segment Reporting [Line Items]
Net sales and operating revenues									3,736	3,489	3,559
Clean Air Systems And Products | Original Equipment | OE Substrate
Segment Reporting [Line Items]
Net sales and operating revenues									2,028	1,916	1,934
Ride Control Systems And Products
Segment Reporting [Line Items]
Net sales and operating revenues									2,530	2,486	2,609
Ride Control Systems And Products | Aftermarket
Segment Reporting [Line Items]
Net sales and operating revenues									937	941	976
Ride Control Systems And Products | Original Equipment
Segment Reporting [Line Items]
Net sales and operating revenues									$ 1,593	$ 1,545	$ 1,633

Segment and Geographic Area 102

Segment and Geographic Area Information - Revenue Percent by Major Customers (Details) - Net Sales	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
General Motors
Revenue, Major Customer [Line Items]
Customer accounted for ten percent or more of net sales	17.00%	15.00%	15.00%
Ford
Revenue, Major Customer [Line Items]
Customer accounted for ten percent or more of net sales	13.00%	13.00%	13.00%

Segment and Geographic Area 103

Segment and Geographic Area Information - Geographic Information Table (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule Of Geographical Information [Line Items]
Revenues from external customers	$ 8,599	$ 8,209	$ 8,420
Long-lived assets	1,469	1,356	1,351
Total assets	4,342	3,967	3,996
United States
Schedule Of Geographical Information [Line Items]
Revenues from external customers	3,512	3,362	3,348
Long-lived assets	541	496	473
Total assets	1,897	1,726	1,696
China
Schedule Of Geographical Information [Line Items]
Revenues from external customers	1,186	1,101	1,079
Long-lived assets	217	203	192
Total assets	791	696	683
Germany
Schedule Of Geographical Information [Line Items]
Revenues from external customers	764	807	955
Long-lived assets	111	108	113
Total assets	231	258	319
Canada
Schedule Of Geographical Information [Line Items]
Revenues from external customers	387	387	413
Long-lived assets	44	41	52
Total assets	166	146	164
United Kingdom
Schedule Of Geographical Information [Line Items]
Revenues from external customers	387	307	235
Long-lived assets	38	32	27
Total assets	130	101	68
Other Foreign
Schedule Of Geographical Information [Line Items]
Revenues from external customers	2,363	2,245	2,390
Long-lived assets	518	476	494
Total assets	1,275	1,156	1,221
Reclass & Elims
Schedule Of Geographical Information [Line Items]
Revenues from external customers	0	0	0
Long-lived assets	0	0	0
Total assets	$ (148)	$ (116)	$ (155)

Commitments and Contingencies -

Commitments and Contingencies - Capital and Lease Commitments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Estimate of authorized expenditures required to complete facilities and projects	$ 112
Operating Leases, 2017	39
Operating Leases, 2018	25
Operating Leases, 2019	18
Operating Leases, 2020	15
Operating Leases, 2021	12
Operating Leases for subsequent years	17
Capital Lease, 2017	1
Capital Lease, 2018	1
Capital Lease, 2019	1
Capital Lease, 2020	1
Capital Lease, 2021	1
Total rental expense	$ 65	$ 61	$ 64

Commitments and Contingencie105

Commitments and Contingencies - Environmental Matters (Details) $ in Millions	Dec. 31, 2016USD ($)
Commitments and Contingencies Disclosure [Abstract]
Environmental remediation accrual, discounted basis	$ 15
Portion of environmental remediation costs recorded in other current liabilities	2
Portion of environmental remediation costs recorded in deferred credits and other liabilities	$ 13
Weighted average discount rate	2.40%
Environmental remediation accrual, undiscounted basis	$ 18
Expected payments of environmental remediation costs, 2017	2
Expected payments of environmental remediation costs, 2018	1
Expected payments of environmental remediation costs, 2019	1
Expected payments of environmental remediation costs, 2020	1
Expected payments of environmental remediation costs, 2021	1
Expected payments of environmental remediation costs, thereafter	$ 12

Commitments and Contingencie106

Commitments and Contingencies - Other Legal Proceedings, Claims and Investigations (Details)	9 Months Ended
	Sep. 30, 2015LegalMatterdefendent
Commitments and Contingencies Disclosure [Abstract]
Current docket of active and inactive cases nationwide relating to alleged exposure to asbestos from our product categories | LegalMatter	500
Number of defendants in many asbestos related cases | defendent	100

Commitments and Contingencie107

Commitments and Contingencies - Warranty Accrual Table (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Beginning Balance	$ 23	$ 26	$ 24
Accruals related to product warranties	12	15	24
Reductions for payments made	(15)	(18)	(22)
Ending Balance	$ 20	$ 23	$ 26

Supplemental Guarantor Conde108

Supplemental Guarantor Condensed Consolidating Financial Statements - Additional Information (Details)	12 Months Ended
	Dec. 31, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Ownership percentage of existing and future material domestic owned subsidiaries	100.00%

Supplemental Guarantor Conde109

Supplemental Guarantor Condensed Consolidating Financial Statements - Statement of Comprehensive Income Loss (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net sales and operating revenues —
External									$ 8,599	$ 8,209	$ 8,420
Affiliated companies									0	0	0
Net sales and operating revenues	$ 2,155	$ 2,096	$ 2,212	$ 2,136	$ 2,031	$ 2,025	$ 2,130	$ 2,023	8,599	8,209	8,420
Costs and expenses
Cost of sales (exclusive of depreciation and amortization shown below)	1,790	1,741	1,810	1,770	1,688	1,707	1,764	1,686	7,111	6,845	7,025
Engineering, research, and development									154	146	169
Selling, general, and administrative									589	491	519
Depreciation and amortization of other intangibles									212	203	208
Costs and expenses									8,066	7,685	7,921
Other income (expense)
Loss on sale of receivables									(5)	(4)	(4)
Other income (expense)									0	(1)	(3)
Total other income (expense)									(5)	(5)	(7)
Earnings before interest expense, income taxes, and noncontrolling interests	75	152	177	124	128	116	155	120	528	519	492
Interest expense —
External (net of interest capitalized)									92	67	91
Affiliated companies (net of interest income)									0	0	0
Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies									436	452	401
Income tax expense (benefit)									3	149	131
Equity in net income (loss) from affiliated companies									0	0	0
Net income (loss)									433	303	270
Less: Net income attributable to noncontrolling interests									70	56	44
Net income (loss) attributable to Tenneco Inc.	$ 40	$ 180	$ 86	$ 57	$ 68	$ 52	$ 78	$ 49	363	247	226
Comprehensive income (loss) attributable to Tenneco Inc.									363	127	41
Reclass & Elims
Net sales and operating revenues —
External									0	0	0
Affiliated companies									(1,273)	(969)	(1,005)
Net sales and operating revenues									(1,273)	(969)	(1,005)
Costs and expenses
Cost of sales (exclusive of depreciation and amortization shown below)									(1,273)	(969)	(1,005)
Engineering, research, and development									0	0	0
Selling, general, and administrative									0	0	0
Depreciation and amortization of other intangibles									0	0	0
Costs and expenses									(1,273)	(969)	(1,005)
Other income (expense)
Loss on sale of receivables									0	0	0
Other income (expense)									(15)	(48)	(38)
Total other income (expense)									(15)	(48)	(38)
Earnings before interest expense, income taxes, and noncontrolling interests									(15)	(48)	(38)
Interest expense —
External (net of interest capitalized)									0	0	0
Affiliated companies (net of interest income)									0	0	0
Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies									(15)	(48)	(38)
Income tax expense (benefit)										0	0
Equity in net income (loss) from affiliated companies									(629)	(402)	(451)
Net income (loss)									(644)	(450)	(489)
Less: Net income attributable to noncontrolling interests									0	0	0
Net income (loss) attributable to Tenneco Inc.									(644)	(450)	(489)
Comprehensive income (loss) attributable to Tenneco Inc.									(644)	(450)	(489)
Guarantor Subsidiaries
Net sales and operating revenues —
External									3,865	3,711	3,727
Affiliated companies									526	411	403
Net sales and operating revenues									4,391	4,122	4,130
Costs and expenses
Cost of sales (exclusive of depreciation and amortization shown below)									3,715	3,442	3,391
Engineering, research, and development									76	70	81
Selling, general, and administrative									311	193	211
Depreciation and amortization of other intangibles									86	87	86
Costs and expenses									4,188	3,792	3,769
Other income (expense)
Loss on sale of receivables									(2)	(1)	0
Other income (expense)									(9)	41	26
Total other income (expense)									(11)	40	26
Earnings before interest expense, income taxes, and noncontrolling interests									192	370	387
Interest expense —
External (net of interest capitalized)									(2)	(2)	(1)
Affiliated companies (net of interest income)									(12)	54	73
Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies									206	318	315
Income tax expense (benefit)									(95)	43	94
Equity in net income (loss) from affiliated companies									170	84	129
Net income (loss)									471	359	350
Less: Net income attributable to noncontrolling interests									0	0	0
Net income (loss) attributable to Tenneco Inc.									471	359	350
Comprehensive income (loss) attributable to Tenneco Inc.									471	359	350
Non-Guarantor Subsidiaries
Net sales and operating revenues —
External									4,734	4,498	4,693
Affiliated companies									747	558	602
Net sales and operating revenues									5,481	5,056	5,295
Costs and expenses
Cost of sales (exclusive of depreciation and amortization shown below)									4,669	4,372	4,639
Engineering, research, and development									78	76	88
Selling, general, and administrative									277	295	302
Depreciation and amortization of other intangibles									126	116	122
Costs and expenses									5,150	4,859	5,151
Other income (expense)
Loss on sale of receivables									(3)	(3)	(4)
Other income (expense)									24	6	9
Total other income (expense)									21	3	5
Earnings before interest expense, income taxes, and noncontrolling interests									352	200	149
Interest expense —
External (net of interest capitalized)									4	3	4
Affiliated companies (net of interest income)									7	(56)	(75)
Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies									341	253	220
Income tax expense (benefit)									98	106	37
Equity in net income (loss) from affiliated companies									0	0	0
Net income (loss)									243	147	183
Less: Net income attributable to noncontrolling interests									70	56	44
Net income (loss) attributable to Tenneco Inc.									173	91	139
Comprehensive income (loss) attributable to Tenneco Inc.									173	91	139
Tenneco Inc. (Parent Company)
Net sales and operating revenues —
External									0	0	0
Affiliated companies									0	0	0
Net sales and operating revenues									0	0	0
Costs and expenses
Cost of sales (exclusive of depreciation and amortization shown below)									0	0	0
Engineering, research, and development									0	0	0
Selling, general, and administrative									1	3	6
Depreciation and amortization of other intangibles									0	0	0
Costs and expenses									1	3	6
Other income (expense)
Loss on sale of receivables									0	0	0
Other income (expense)									0	0	0
Total other income (expense)									0	0	0
Earnings before interest expense, income taxes, and noncontrolling interests									(1)	(3)	(6)
Interest expense —
External (net of interest capitalized)									90	66	88
Affiliated companies (net of interest income)									5	2	2
Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies									(96)	(71)	(96)
Income tax expense (benefit)										0	0
Equity in net income (loss) from affiliated companies									459	318	322
Net income (loss)									363	247	226
Less: Net income attributable to noncontrolling interests										0	0
Net income (loss) attributable to Tenneco Inc.									363	247	226
Comprehensive income (loss) attributable to Tenneco Inc.									$ 363	$ 127	$ 41

Supplemental Guarantor Conde110

Supplemental Guarantor Condensed Consolidating Financial Statements - Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 347	[1]	$ 287	[1]	$ 282	[1]	$ 275
Restricted cash	2		1
Receivables, net	1,294		1,112
Inventories	730		682
Prepayments and other	229		229
Total current assets	2,602		2,311
Other assets:
Investment in affiliated companies	0		0
Notes and advances receivable from affiliates	0		0
Long-term receivables, net	9		13
Goodwill	57		60
Intangibles, net	19		22
Deferred income taxes	195		218
Pension Assets			0
Other	103		100
Other Assets	383		413
Plant, property, and equipment, at cost	3,548		3,418
Less — Accumulated depreciation and amortization	(2,191)		(2,175)
Plant, property and equipment, net	1,357		1,243
Total Assets	4,342		3,967		3,996
Short-term debt (including current maturities of long-term debt)
Short-term debt — non-affiliated	90		86
Short-term debt — affiliated	0		0
Accounts payable	1,496		1,376
Accrued taxes	41		37
Other	343		295
Total current liabilities	1,970		1,794
Long-term debt — non-affiliated	1,294		1,124
Long-term debt — affiliated	0		0
Deferred income taxes	7		7
Postretirement benefits and other liabilities	389		524
Commitments and contingencies
Total liabilities	3,660		3,449
Redeemable noncontrolling interests	43		43		35		20
Total Tenneco Inc. shareholders’ equity	588		433		497
Noncontrolling interests	51		42
Total equity	639		475		538
Total liabilities, redeemable noncontrolling interests and equity	4,342		3,967
Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	9		2		10		6
Restricted cash	0		0
Receivables, net	386		299
Inventories	361		333
Prepayments and other	62		67
Total current assets	818		701
Other assets:
Investment in affiliated companies	1,221		1,146
Notes and advances receivable from affiliates	939		938
Long-term receivables, net	9		11
Goodwill	22		22
Intangibles, net	7		9
Deferred income taxes	47		122
Pension Assets			0
Other	46		42
Other Assets	2,291		2,290
Plant, property, and equipment, at cost	1,371		1,281
Less — Accumulated depreciation and amortization	(895)		(851)
Plant, property and equipment, net	476		430
Total Assets	3,585		3,421
Short-term debt (including current maturities of long-term debt)
Short-term debt — non-affiliated	0		0
Short-term debt — affiliated	167		164
Accounts payable	557		484
Accrued taxes	6		6
Other	147		125
Total current liabilities	877		779
Long-term debt — non-affiliated	0		0
Long-term debt — affiliated	1,543		1,583
Deferred income taxes	0		0
Postretirement benefits and other liabilities	297		424
Commitments and contingencies
Total liabilities	2,717		2,786
Redeemable noncontrolling interests	0		0
Total Tenneco Inc. shareholders’ equity	868		635
Noncontrolling interests	0		0
Total equity	868		635
Total liabilities, redeemable noncontrolling interests and equity	3,585		3,421
Non-Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	338		285		272		269
Restricted cash	2		1
Receivables, net	1,412		1,241
Inventories	369		349
Prepayments and other	167		162
Total current assets	2,288		2,038
Other assets:
Investment in affiliated companies	0		0
Notes and advances receivable from affiliates	16,529		13,291
Long-term receivables, net	0		2
Goodwill	35		38
Intangibles, net	12		13
Deferred income taxes	19		28
Pension Assets			0
Other	49		47
Other Assets	16,644		13,419
Plant, property, and equipment, at cost	2,177		2,137
Less — Accumulated depreciation and amortization	(1,296)		(1,324)
Plant, property and equipment, net	881		813
Total Assets	19,813		16,270
Short-term debt (including current maturities of long-term debt)
Short-term debt — non-affiliated	75		73
Short-term debt — affiliated	187		147
Accounts payable	1,027		955
Accrued taxes	35		31
Other	243		221
Total current liabilities	1,567		1,427
Long-term debt — non-affiliated	12		21
Long-term debt — affiliated	16,466		13,226
Deferred income taxes	7		7
Postretirement benefits and other liabilities	92		100
Commitments and contingencies
Total liabilities	18,144		14,781
Redeemable noncontrolling interests	43		43
Total Tenneco Inc. shareholders’ equity	1,575		1,404
Noncontrolling interests	51		42
Total equity	1,626		1,446
Total liabilities, redeemable noncontrolling interests and equity	19,813		16,270
Tenneco Inc. (Parent Company)
Current assets:
Cash and cash equivalents	0		0		0		0
Restricted cash	0		0
Receivables, net	0		0
Inventories	0		0
Prepayments and other	0		0
Total current assets	0		0
Other assets:
Investment in affiliated companies	1,222		893
Notes and advances receivable from affiliates	4,781		4,788
Long-term receivables, net	0		0
Goodwill	0		0
Intangibles, net	0		0
Deferred income taxes	129		68
Pension Assets			0
Other	8		11
Other Assets	6,140		5,760
Plant, property, and equipment, at cost	0		0
Less — Accumulated depreciation and amortization	0		0
Plant, property and equipment, net	0		0
Total Assets	6,140		5,760
Short-term debt (including current maturities of long-term debt)
Short-term debt — non-affiliated	15		13
Short-term debt — affiliated	0		0
Accounts payable	0		0
Accrued taxes	0		0
Other	15		3
Total current liabilities	30		16
Long-term debt — non-affiliated	1,282		1,103
Long-term debt — affiliated	4,240		4,208
Deferred income taxes	0		0
Postretirement benefits and other liabilities	0		0
Commitments and contingencies
Total liabilities	5,552		5,327
Redeemable noncontrolling interests	0		0
Total Tenneco Inc. shareholders’ equity	588		433
Noncontrolling interests	0		0
Total equity	588		433
Total liabilities, redeemable noncontrolling interests and equity	6,140		5,760
Reclass & Elims
Current assets:
Cash and cash equivalents	0		0		$ 0		$ 0
Restricted cash	0		0
Receivables, net	(504)		(428)
Inventories	0		0
Prepayments and other	0		0
Total current assets	(504)		(428)
Other assets:
Investment in affiliated companies	(2,443)		(2,039)
Notes and advances receivable from affiliates	(22,249)		(19,017)
Long-term receivables, net	0		0
Goodwill	0		0
Intangibles, net	0		0
Deferred income taxes	0		0
Pension Assets			0
Other	0		0
Other Assets	(24,692)		(21,056)
Plant, property, and equipment, at cost	0		0
Less — Accumulated depreciation and amortization	0		0
Plant, property and equipment, net	0		0
Total Assets	(25,196)		(21,484)
Short-term debt (including current maturities of long-term debt)
Short-term debt — non-affiliated	0		0
Short-term debt — affiliated	(354)		(311)
Accounts payable	(88)		(63)
Accrued taxes	0		0
Other	(62)		(54)
Total current liabilities	(504)		(428)
Long-term debt — non-affiliated	0		0
Long-term debt — affiliated	(22,249)		(19,017)
Deferred income taxes	0		0
Postretirement benefits and other liabilities	0		0
Commitments and contingencies
Total liabilities	(22,753)		(19,445)
Redeemable noncontrolling interests	0		0
Total Tenneco Inc. shareholders’ equity	(2,443)		(2,039)
Noncontrolling interests	0		0
Total equity	(2,443)		(2,039)
Total liabilities, redeemable noncontrolling interests and equity	$ (25,196)		$ (21,484)
[1]	Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase.

Supplemental Guarantor Conde111

Supplemental Guarantor Condensed Consolidating Financial Statements - Statement of Cash Flows (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Operating Activities
Net cash provided (used) by operating activities		$ 489		$ 517		$ 341
Investing Activities
Proceeds from sale of assets		6		4		3
Cash payments for plant, property, and equipment		(325)		(286)		(328)
Cash payments for software related intangible assets		(20)		(23)		(13)
Cash payments for net assets purchased						(3)
Change in restricted cash		(1)		2		2
Net cash used by investing activities		(340)		(303)		(339)
Financing Activities
Retirement of long-term debt		(531)		(37)		(462)
Issuance of long-term debt		509		1		570
Debt issuance cost on long-term debt		(9)		(1)		(12)
Tax impact from stock-based compensation		(10)		6		26
Purchase of common stock under the share repurchase program		(225)		(213)		(22)
Issuance of common stock		18		6		19
Increase in bank overdrafts		10		(22)		6
Net decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable		202		102		(70)
Net decrease in short-term borrowings secured by accounts receivable				30		(10)
Intercompany dividends and net increase (decrease) in intercompany obligations		0		0		0
Capital contribution from noncontrolling interest partner		0		0		5
Distribution to noncontrolling interest partners		(55)		(44)		(30)
Net cash provided (used) by financing activities		(91)		(172)		20
Effect of foreign exchange rate changes on cash and cash equivalents		2		(37)		(15)
Increase in cash and cash equivalents		60		5		7
Cash and cash equivalents, January 1		287	[1]	282	[1]	275
Cash and cash equivalents, December 31 (Note)	[1]	347		287		282
Guarantor Subsidiaries
Operating Activities
Net cash provided (used) by operating activities		176		204		44
Investing Activities
Proceeds from sale of assets		0		0		0
Cash payments for plant, property, and equipment		(117)		(114)		(106)
Cash payments for software related intangible assets		(13)		(16)		(5)
Cash payments for net assets purchased						(3)
Change in restricted cash		0		0
Net cash used by investing activities		(130)		(130)		(114)
Financing Activities
Retirement of long-term debt		0		0		0
Issuance of long-term debt		0		0		0
Debt issuance cost on long-term debt		0		0		0
Tax impact from stock-based compensation		0		0		0
Purchase of common stock under the share repurchase program		0		0		0
Issuance of common stock		0		0		0
Increase in bank overdrafts		0		0		0
Net decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable		0		0		0
Net decrease in short-term borrowings secured by accounts receivable				0		0
Intercompany dividends and net increase (decrease) in intercompany obligations		(39)		(82)		74
Capital contribution from noncontrolling interest partner						0
Distribution to noncontrolling interest partners		0		0		0
Net cash provided (used) by financing activities		(39)		(82)		74
Effect of foreign exchange rate changes on cash and cash equivalents		0		0		0
Increase in cash and cash equivalents		7		(8)		4
Cash and cash equivalents, January 1		2		10		6
Cash and cash equivalents, December 31 (Note)		9		2		10
Non-Guarantor Subsidiaries
Operating Activities
Net cash provided (used) by operating activities		300		311		314
Investing Activities
Proceeds from sale of assets		6		4		3
Cash payments for plant, property, and equipment		(208)		(172)		(222)
Cash payments for software related intangible assets		(7)		(7)		(8)
Cash payments for net assets purchased						0
Change in restricted cash		(1)		2
Net cash used by investing activities		(210)		(173)		(225)
Financing Activities
Retirement of long-term debt		(16)		(22)		(9)
Issuance of long-term debt		9		1		45
Debt issuance cost on long-term debt		0		0		0
Tax impact from stock-based compensation		0		0		0
Purchase of common stock under the share repurchase program		0		0		0
Issuance of common stock		0		0		0
Increase in bank overdrafts		10		(22)		6
Net decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable		5		20		(13)
Net decrease in short-term borrowings secured by accounts receivable				0		0
Intercompany dividends and net increase (decrease) in intercompany obligations		8		(21)		(75)
Capital contribution from noncontrolling interest partner						5
Distribution to noncontrolling interest partners		(55)		(44)		(30)
Net cash provided (used) by financing activities		(39)		(88)		(71)
Effect of foreign exchange rate changes on cash and cash equivalents		2		(37)		(15)
Increase in cash and cash equivalents		53		13		3
Cash and cash equivalents, January 1		285		272		269
Cash and cash equivalents, December 31 (Note)		338		285		272
Tenneco Inc. (Parent Company)
Operating Activities
Net cash provided (used) by operating activities		28		49		21
Investing Activities
Proceeds from sale of assets		0		0		0
Cash payments for plant, property, and equipment		0		0		0
Cash payments for software related intangible assets		0		0		0
Cash payments for net assets purchased						0
Change in restricted cash		0		0
Net cash used by investing activities		0		0		0
Financing Activities
Retirement of long-term debt		(515)		(15)		(453)
Issuance of long-term debt		500		0		525
Debt issuance cost on long-term debt		(9)		(1)		(12)
Tax impact from stock-based compensation		(10)		6		26
Purchase of common stock under the share repurchase program		(225)		(213)		(22)
Issuance of common stock		18		6		19
Increase in bank overdrafts		0		0		0
Net decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable		197		82		(57)
Net decrease in short-term borrowings secured by accounts receivable				30		(10)
Intercompany dividends and net increase (decrease) in intercompany obligations		16		56		(37)
Capital contribution from noncontrolling interest partner						0
Distribution to noncontrolling interest partners		0		0		0
Net cash provided (used) by financing activities		(28)		(49)		(21)
Effect of foreign exchange rate changes on cash and cash equivalents		0		0		0
Increase in cash and cash equivalents		0		0		0
Cash and cash equivalents, January 1		0		0		0
Cash and cash equivalents, December 31 (Note)		0		0		0
Reclass & Elims
Operating Activities
Net cash provided (used) by operating activities		(15)		(47)		(38)
Investing Activities
Proceeds from sale of assets		0		0		0
Cash payments for plant, property, and equipment		0		0		0
Cash payments for software related intangible assets		0		0		0
Cash payments for net assets purchased						0
Change in restricted cash		0		0
Net cash used by investing activities		0		0		0
Financing Activities
Retirement of long-term debt		0		0		0
Issuance of long-term debt		0		0		0
Debt issuance cost on long-term debt		0		0		0
Tax impact from stock-based compensation		0		0		0
Purchase of common stock under the share repurchase program		0		0		0
Issuance of common stock		0		0		0
Increase in bank overdrafts		0		0		0
Net decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable		0		0		0
Net decrease in short-term borrowings secured by accounts receivable				0		0
Intercompany dividends and net increase (decrease) in intercompany obligations		15		47		38
Capital contribution from noncontrolling interest partner						0
Distribution to noncontrolling interest partners		0		0		0
Net cash provided (used) by financing activities		15		47		38
Effect of foreign exchange rate changes on cash and cash equivalents		0		0		0
Increase in cash and cash equivalents		0		0		0
Cash and cash equivalents, January 1		0		0		0
Cash and cash equivalents, December 31 (Note)		$ 0		$ 0		$ 0
[1]	Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase.

Subsequent Events (Details)

Subsequent Events (Details)	Feb. 01, 2017$ / shares
Subsequent event
Subsequent Event [Line Items]
Quarterly cash divided declared (in dollars per share)	$ 0.25

Quarterly Financial Data (Un113

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Net Sales and Operating Revenues	$ 2,155	$ 2,096	$ 2,212	$ 2,136	$ 2,031	$ 2,025	$ 2,130	$ 2,023	$ 8,599	$ 8,209	$ 8,420
Cost of Sales (Excluding Depreciation and Amortization)	1,790	1,741	1,810	1,770	1,688	1,707	1,764	1,686	7,111	6,845	7,025
Earnings Before Interest Expense, Income Taxes and Noncontrolling Interests	75	152	177	124	128	116	155	120	528	519	492
Net Income Attributable to Tenneco Inc.	$ 40	$ 180	$ 86	$ 57	$ 68	$ 52	$ 78	$ 49	$ 363	$ 247	$ 226
Basic Earnings per Share of Common Stock (in dollars per share)	$ 0.74	$ 3.24	$ 1.51	$ 1	$ 1.18	$ 0.89	$ 1.27	$ 0.81	$ 6.49	$ 4.14	$ 3.72
Diluted earnings per share of common stock (in dollars per share)	$ 0.73	$ 3.21	$ 1.49	$ 0.99	$ 1.17	$ 0.88	$ 1.26	$ 0.80	$ 6.44	$ 4.11	$ 3.66

VALUATION AND QUALIFYING ACC114

VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Doubtful Accounts And Notes Receivable
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 16	$ 16	$ 14
Charged to Costs and Expenses	1	4	4
Charged to Other Accounts	0	0	0
Deductions	1	4	2
Balance at End of Year	16	16	16
Deferred Tax Assets
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	127	139	135
Charged to Costs and Expenses	18	15	15
Charged to Other Accounts	0	(3)	(3)
Deductions	0	(24)	(8)
Balance at End of Year	$ 145	$ 127	$ 139