Tenneco (TEN) 10-K 28 Feb 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Dec. 31, 2013	Feb. 21, 2014	Jun. 28, 2013
Document Documentand Entity Information [Abstract]	'	'	'
Entity Registrant Name	'TENNECO INC	'	'
Entity Central Index Key	'0001024725	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Trading Symbol	'TEN	'	'
Document Type	'10-K	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Amendment Flag	'false	'	'
Entity Common Stock, Shares Outstanding	'	60,922,497	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Public Float	'	'	$2.70

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)

3 Months Ended

12 Months Ended

In Millions, except Share data, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Sep. 30, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Revenues

'

'

'

'

'

'

'

'

'

'

'

'

Net sales and operating revenues

$2,031

$1,963

$2,067

$1,903

$1,753

$1,778

$1,920

$1,912

'

$7,964

$7,363

$7,205

Costs and expenses

'

'

'

'

'

'

'

'

'

'

'

'

Cost of sales (exclusive of depreciation and amortization shown below)

1,703

1,691

1,736

1,604

1,474

1,494

1,595

1,607

'

6,734

6,170

6,037

Goodwill impairment charge

'

'

'

'

'

'

'

'

11

0

0

11

Engineering, research, and development

'

'

'

'

'

'

'

'

'

144

126

133

Selling, general, and administrative

'

'

'

'

'

'

'

'

'

453

427

428

Depreciation and amortization of other intangibles

'

'

'

'

'

'

'

'

'

205

205

207

Costs and expenses

'

'

'

'

'

'

'

'

'

7,536

6,928

6,816

Other income (expense)

'

'

'

'

'

'

'

'

'

'

'

'

Loss on sale of receivables

'

'

'

'

'

'

'

'

'

-4

-4

-5

Other expense

'

'

'

'

'

'

'

'

'

0

-3

-5

Total other income (expense)

'

'

'

'

'

'

'

'

'

-4

-7

-10

Earnings before interest expense, income taxes, and noncontrolling interests

118

72

141

93

84

111

137

96

'

424

428

379

Interest expense (net of interest capitalized of $4 million each for 2013, 2012 and 2011, respectively)

'

'

'

'

'

'

'

'

'

80

105

108

Earnings before income taxes and noncontrolling interests

'

'

'

'

'

'

'

'

'

344

323

271

Income tax expense

'

'

'

'

'

'

'

'

'

122

19

88

Net income

'

'

'

'

'

'

'

'

'

222

304

183

Less: Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

'

39

29

26

Net income attributable to Tenneco Inc.

$54

$12

$63

$54

$33

$125

$87

$30

'

$183

$275

$157

Weighted average shares of common stock outstanding —

'

'

'

'

'

'

'

'

'

'

'

'

Basic (in shares)

'

'

'

'

'

'

'

'

'

60,474,492

59,985,677

59,884,139

Diluted (in shares)

'

'

'

'

'

'

'

'

'

61,594,062

61,083,510

61,520,160

Basic earnings per share of common stock (in dollars per share)

$0.90

$0.19

$1.04

$0.90

$0.55

$2.09

$1.45

$0.50

'

$3.03

$4.58

$2.62

Diluted earnings per share of common stock (in dollars per share)

$0.88

$0.19

$1.02

$0.88

$0.54

$2.05

$1.42

$0.49

'

$2.97

$4.50

$2.55

CONSOLIDATED_STATEMENTS_OF_INC1

CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]	'	'	'
Capitalized interest	$4	$4	$4

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cumulative Translation Adjustment	'	'	'
Balance January 1	($19)	($26)	$13
Translation of foreign currency statements	-37	7	-39
Balance December 31	-56	-19	-26
Additional Liability for Pension and Postretirement Benefits [Roll Forward]	'	'	'
Balance January 1	-384	-352	-250
Adjustment to the Liability for Pension and Postretirement benefits, net of tax	85	-32	-102
Balance December 31	-299	-384	-352
Balance December 31	-355	-403	-378
Net income	222	304	183
Translation of foreign currency statements	-37	7	-39
Adjustment to the Liability for Pension and Postretirement benefits, net of tax	85	-32	-102
Other comprehensive income (loss)	48	-25	-141
Comprehensive Income	270	279	42
Tenneco Inc.	'	'	'
Cumulative Translation Adjustment	'	'	'
Balance January 1	-24	-30	8
Translation of foreign currency statements	-37	6	-38
Balance December 31	-61	-24	-30
Additional Liability for Pension and Postretirement Benefits [Roll Forward]	'	'	'
Balance January 1	-384	-352	-250
Adjustment to the Liability for Pension and Postretirement benefits, net of tax	85	-32	-102
Balance December 31	-299	-384	-352
Balance December 31	-360	-408	-382
Net income	183	275	157
Translation of foreign currency statements	-37	6	-38
Adjustment to the Liability for Pension and Postretirement benefits, net of tax	85	-32	-102
Other comprehensive income (loss)	48	-26	-140
Comprehensive Income	231	249	17
Noncontrolling Interests	'	'	'
Cumulative Translation Adjustment	'	'	'
Balance January 1	5	4	5
Translation of foreign currency statements	0	1	-1
Balance December 31	5	5	4
Additional Liability for Pension and Postretirement Benefits [Roll Forward]	'	'	'
Balance January 1	0	0	0
Balance December 31	'	0	0
Balance December 31	5	5	4
Net income	39	29	26
Translation of foreign currency statements	0	1	-1
Other comprehensive income (loss)	0	1	-1
Comprehensive Income	$39	$30	$25

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2013		Dec. 31, 2012
In Millions, unless otherwise specified
Current assets:	'		'
Cash and cash equivalents	$275	[1]	$223	[1]
Restricted cash	5		0
Receivables —	'		'
Customer notes and accounts, net	1,041		966
Other	19		20
Inventories	656		667
Deferred income taxes	71		72
Prepayments and other	223		176
Total current assets	2,290		2,124
Other assets:	'		'
Long-term receivables, net	14		4
Goodwill	69		72
Intangibles, net	30		35
Deferred income taxes	125		116
Other	127		135
Total other assets	365		362
Plant, property, and equipment, at cost	3,498		3,365
Less — Accumulated depreciation and amortization	-2,323		-2,243
Plant, property and equipment, net	1,175		1,122
Total Assets	3,830		3,608
Current liabilities:	'		'
Short-term debt (including current maturities of long-term debt)	83		113
Accounts payable	1,359		1,186
Accrued taxes	40		50
Accrued interest	10		10
Accrued liabilities	252		239
Other	94		51
Total current liabilities	1,838		1,649
Long-term debt	1,019		1,067
Deferred income taxes	28		27
Postretirement benefits	249		407
Deferred credits and other liabilities	204		152
Commitments and contingencies	'		'
Total liabilities	3,338		3,302
Redeemable noncontrolling interests	20		15
Tenneco Inc. Shareholders’ equity:	'		'
Common stock	1		1
Premium on common stock and other capital surplus	3,014		3,031
Accumulated other comprehensive loss	-360		-408
Retained earnings (accumulated deficit)	-1,921		-2,104
Shareholders equity before deduction of treasury stock	734		520
Less — Shares held as treasury stock, at cost	301		274
Total Tenneco Inc. shareholders’ equity	433		246
Noncontrolling interests	39		45
Total equity	472		291
Total liabilities, redeemable noncontrolling interests and equity	$3,830		$3,608
[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_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Operating Activities	'		'		'
Net income	$222		$304		$183
Adjustments to reconcile net income to cash provided by operating activities —	'		'		'
Goodwill impairment charge	0		0		11
Depreciation and amortization of other intangibles	205		205		207
Deferred income taxes	5		-65		-5
Stock-based compensation	13		11		8
Loss on sale of assets	1		4		4
Changes in components of working capital —	'		'		'
(Increase) decrease in receivables	-88		-9		-183
(Increase) decrease in inventories	3		-72		-64
(Increase) decrease in prepayments and other current assets	-53		-21		-13
Increase (decrease) in payables	161		12		144
Increase (decrease) in accrued taxes	-10		7		-7
Increase (decrease) in accrued interest	0		-3		0
Increase (decrease) in other current liabilities	64		10		-7
Change in long-term assets	7		14		1
Change in long-term liabilities	-32		-37		-41
Other	5		5		7
Net cash provided by operating activities	503		365		245
Investing Activities	'		'		'
Proceeds from sale of assets	8		3		4
Cash payments for plant, property, and equipment	-244		-256		-213
Cash payments for software related intangible assets	-25		-13		-15
Cash payments for net assets purchased	0		-7		0
Change in restricted cash	-5		0		0
Net cash used by investing activities	-266		-273		-224
Financing Activities	'		'		'
Retirement of long-term debt	-16		-411		-24
Issuance of long-term debt	0		250		5
Debt issuance costs of long-term debt	0		-13		-1
Purchase of common stock under the share repurchase program	-27		-18		-16
Issuance of common stock	20		5		0
Tax benefit from stock-based compensation	24		0		0
Increase (decrease) in bank overdrafts	-6		5		3
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	-22		67		30
Net increase (decrease) in short-term borrowings secured by accounts receivable	-40		50		0
Capital contribution from noncontrolling interest partner	0		5		1
Purchase of noncontrolling equity interest	-69		0		-4
Distribution to noncontrolling interest partners	-39		-29		-20
Net cash used by financing activities	-175		-89		-26
Effect of foreign exchange rate changes on cash and cash equivalents	-10		6		-14
Increase (decrease) in cash and cash equivalents	52		9		-19
Cash and cash equivalents, January 1	223	[1]	214	[1]	233
Cash and cash equivalents, December 31 (Note)	275	[1]	223	[1]	214	[1]
Supplemental Cash Flow Information	'		'		'
Cash paid during the year for interest	79		100		106
Cash paid during the year for income taxes (net of refunds)	109		80		85
Non-cash Investing and Financing Activities	'		'		'
Period end balance of trade payables for plant, property, and equipment	$52		$42		$35
[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_CHA

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $)	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
In Millions, except Share data, unless otherwise specified
Beginning Balance at Dec. 31, 2010	'	$1	$3,008	($237)	($2,536)	$240	$39
Beginning Balance (in shares) at Dec. 31, 2010	'	61,541,760	'	'	'	1,294,692	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Issued pursuant to benefit plans (in shares)	'	49,871	'	'	'	'	'
Stock options exercised (in shares)	'	509,704	'	'	'	'	'
Purchase of noncontrolling equity interest	-2	'	-2	'	'	'	'
Premium on common stock issued pursuant to benefit plans	'	'	10	'	'	'	'
Other comprehensive loss	-141	'	'	-145	'	'	-1
Net income attributable to Tenneco Inc.	157	'	'	'	157	'	19
Purchase of common stock through stock repurchase program (in shares)	'	'	'	'	'	400,000	'
Purchase of common stock through stock repurchase program	'	'	'	'	'	16	'
Other comprehensive income (loss)	'	'	'	'	'	'	-1
Dividends declared	'	'	'	'	'	'	-14
Ending Balance at Dec. 31, 2011	43	1	3,016	-382	-2,379	256	43
Total Tenneco Inc. shareholders’ equity at Dec. 31, 2011	'	'	'	'	'	0	'
Ending Balance (in shares) at Dec. 31, 2011	'	62,101,335	'	'	'	1,694,692	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Issued pursuant to benefit plans (in shares)	'	149,398	'	'	'	'	'
Stock options exercised (in shares)	'	538,649	'	'	'	'	'
Purchase of noncontrolling equity interest	0	'	0	'	'	'	'
Premium on common stock issued pursuant to benefit plans	'	'	15	'	'	'	'
Other comprehensive loss	-25	'	'	-26	'	'	1
Net income attributable to Tenneco Inc.	275	'	'	'	275	'	20
Purchase of common stock through stock repurchase program (in shares)	'	'	'	'	'	600,000	'
Purchase of common stock through stock repurchase program	'	'	'	'	'	18	'
Capital contribution	'	'	'	'	'	'	3
Other comprehensive income (loss)	'	'	'	'	'	'	1
Dividends declared	'	'	'	'	'	'	-22
Ending Balance at Dec. 31, 2012	291	1	3,031	-408	-2,104	274	45
Total Tenneco Inc. shareholders’ equity at Dec. 31, 2012	246	'	'	'	'	246	'
Ending Balance (in shares) at Dec. 31, 2012	'	62,789,382	'	'	'	2,294,692	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Issued pursuant to benefit plans (in shares)	'	156,213	'	'	'	'	'
Stock options exercised (in shares)	'	769,133	'	'	'	'	'
Purchase of noncontrolling equity interest	-68	'	-68	'	'	'	'
Premium on common stock issued pursuant to benefit plans	'	'	51	'	'	'	'
Other comprehensive loss	48	'	'	48	'	'	0
Net income attributable to Tenneco Inc.	183	'	'	'	183	'	24
Purchase of common stock through stock repurchase program (in shares)	'	'	'	'	'	550,000	'
Purchase of common stock through stock repurchase program	'	'	'	'	'	27	'
Sale of noncontrolling equity interest	'	'	'	'	'	'	-1
Dividends declared	'	'	'	'	'	'	-29
Ending Balance at Dec. 31, 2013	472	1	3,014	-360	-1,921	301	39
Total Tenneco Inc. shareholders’ equity at Dec. 31, 2013	$433	'	'	'	'	$433	'
Ending Balance (in shares) at Dec. 31, 2013	'	63,714,728	'	'	'	2,844,692	'

Summary_of_Accounting_Policies

Summary of Accounting Policies	12 Months Ended
	Dec. 31, 2013
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, pension and postretirement benefit plans, income taxes, 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 four 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 August 2011, we purchased the remaining 25 percent equity interest in our clean air joint venture in Thailand for $4 million in cash. As a result of this purchase, our equity ownership of this joint venture investment changed to 100 percent from 75 percent. Refer to Note 3 of the consolidated financial statements of Tenneco Inc. for additional details.
	The following is a rollforward of activity in our redeemable noncontrolling interests for the years ending December 31, 2013, 2012 and 2011, respectively:
		2013			2012			2011
		(Millions)
	Balance January 1	$	15		$	12		$	12
	Net income attributable to redeemable noncontrolling interests	14			9			7
	Sale of 25 percent equity interest to Tenneco Inc	—			—			(2		)
	Capital Contributions	—			2			1
	Dividends declared	(9		)	(8		)	(6		)
	Balance December 31	$	20		$	15		$	12
	Inventories
	At December 31, 2013 and 2012, inventory by major classification was as follows:
		2013			2012
		(Millions)
	Finished goods	$	267		$	273
	Work in process	202			207
	Raw materials	130			133
	Materials and supplies	57			54
		$	656		$	667
	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
	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.
	During the third quarter of 2011, we performed an impairment evaluation of our Australian reporting unit’s goodwill balance as a result of continued deterioration of that reporting unit’s financial performance driven primarily by significant declines in industry production volumes in that region. As a result of performing steps one and two of the goodwill impairment test, we concluded that the remaining amount of goodwill related to our Australian reporting unit was impaired and accordingly, we recorded a goodwill impairment charge of $11 million during the third quarter of 2011.
	In the fourth quarter of 2013 and 2012, 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, 2013 and 2012 were as follows:
		Clean Air Division									Ride Performance Division
		North			Europe, South America & India			Asia			North			Europe, South America & India			Asia		Total
		America						Pacific			America						Pacific
	(Millions)
	Balance at December 31, 2011	$	15		$	13		$	—		$	10		$	36		$	—	$	74
	Translation Adjustment	(1		)	—			—			—			(1		)	—		(2		)
	Balance at December 31, 2012	14			14			—			10			34			—		72
	Translation Adjustment	—			—			—			—			(3		)	—		(3		)
	Balance at December 31, 2013	14			14			—			10			31			—		69
	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 5 to 50 years. Amortization of intangibles amounted to $5 million in each of 2013 and 2012, and $2 million in 2011, 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:
		31-Dec-13						31-Dec-12
		Gross Carrying			Accumulated			Gross Carrying			Accumulated
		Value			Amortization			Value			Amortization
		(Millions)						(Millions)
	Customer contract	$	8		$	(4	)	$	8		$	(3	)
	Patents	3			(2		)	3			(1		)
	Technology rights	26			(12		)	26			(7		)
	Other	11			(1		)	11			(1		)
	Total	$	48		$	(19	)	$	48		$	(12	)
	Estimated amortization of intangible assets over the next five years is expected to be $3 million in 2014, $5 million in 2015, $4 million in 2016, $3 million in 2017 and $2 million in 2018. We have capitalized indefinite life intangibles of $1 million relating to purchased trademarks from our Marzocchi® acquisition in 2008.
	Plant, Property, and Equipment, at Cost
	At December 31, 2013 and 2012, plant, property, and equipment, at cost, by major category were as follows:
		2013			2012
		(Millions)
	Land, buildings, and improvements	$	579		$	563
	Machinery and equipment	2,673			2,574
	Other, including construction in progress	246			228
		$	3,498		$	3,365
	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 $1,065 million and $980 million at December 31, 2013 and 2012, respectively. The allowance for doubtful accounts on short-term and long-term accounts receivable was $14 million at both December 31, 2013 and 2012, respectively. Short and long-term notes receivable outstanding were $5 million and $3 million at December 31, 2013 and 2012, respectively. The allowance for doubtful accounts on short-term and long-term notes receivable was zero at both December 31, 2013 and 2012.
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 $30 million and $25 million at December 31, 2013 and 2012, respectively. In addition, plant, property and equipment included $59 million and $50 million at both December 31, 2013 and 2012, respectively, for original equipment tools and dies that we own, and prepayments and other included $86 million and $66 million at December 31, 2013 and 2012, 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 $55 million and $58 million at December 31, 2013 and 2012, respectively, and are recorded in other long-term assets. Amortization of software development costs was approximately $15 million, $15 million and $18 million for the years ended December 31, 2013, 2012 and 2011, respectively, 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.
Income Taxes
We reported income tax expenses of $122 million, $19 million and $88 million in the years ended 2013, 2012 and 2011, respectively. The tax expense recorded in 2013 includes a net tax benefit of $25 million primarily for tax adjustments related to recognizing a U.S. tax benefit for foreign taxes and changes to prior year estimates.
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.
In 2012, we reversed the tax valuation allowance that we recorded in 2008 against our net deferred tax assets in the U.S. based on operating improvements we had made, the outlook for light and commercial vehicle production in the U.S. and the positive impact this should have on our U.S. operations. The net income impact of the tax valuation allowance release in the U.S. was a tax benefit of approximately $81 million.
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 Spain and certain other 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 $1,835 million, $1,660 million and $1,678 million in 2013, 2012 and 2011, 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 $144 million for 2013, $126 million for 2012, and $133 million for 2011, 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 2013, 2012 and 2011 has been reduced by $169 million, $159 million and $119 million, respectively, for these reimbursements.
Advertising and Promotion Expenses
We expense advertising and promotion expenses as they are incurred. Advertising and promotion expenses were $53 million, $54 million, and $61 million for the years ended December 31, 2013, 2012, and 2011, respectively.
Foreign Currency Translation
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 transactions which hedge purchase commitments and for those intercompany balances which are designated as long-term investments. Our results include foreign currency transaction losses of $13 million in 2013, of $8 million in 2012 and $3 million in 2011. The amounts are recorded in cost of sales.
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, 2013 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 July 2013, the Financial Accounting Standards Board (“FASB”) issued an amendment to provide explicit guidance on financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, similar tax loss, or tax credit carryforward exists. The objective of the amendment is to eliminate the diversity in practice in the presentation of unrecognized tax benefits in those instances. This amendment is effective for reporting periods beginning after December 15, 2013. We adopted this amendment on January 1, 2014. Adoption of the amendment is not expected to have a material impact on our consolidated financial statements.
In April 2013, the FASB issued an amendment to clarify when an entity should apply the liquidation basis of accounting and to provide principles for the measurement of assets and liabilities under the liquidation basis of accounting, as well as any required disclosures. The amendment applies to all entities that issue financial statements that are presented in conformity with U.S. GAAP except investment companies that are regulated under the Investment Company Act of 1940. This amendment is effective for reporting periods beginning after December 15, 2013. Adoption of the amendment will not have any impact on our consolidated financial statements.
In February 2013, the FASB issued an amendment to resolve the diversity in practice about whether Subtopic 810-10, Consolidation-Overall, or Subtopic 830-30, Foreign Currency Matters-Translation of Financial Statements, applies to the release of the cumulative translation adjustment into net income when a parent either sells a part of all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business (other than a sale of in substance real state or conveyance of oil and gas mineral rights) within a foreign entity. In addition, the amendments resolve the diversity in practice for the treatment of business combinations achieved in stages (sometimes also referred to as step acquisitions) involving a foreign entity. This amendment is effective for reporting periods beginning after December 15, 2013. Adoption of the amendment will not have any impact on our consolidated financial statements.
In February 2013, the FASB issued an amendment to the accounting guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date, except for obligations addressed within existing guidance in U.S. GAAP. The guidance requires an entity to measure those obligations as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement amount its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance in this amendment also requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations. This amendment is effective for reporting periods beginning after December 15, 2013. Adoption of the amendment will not have any impact on our consolidated financial statements.
In February 2013, the FASB issued an amendment to the accounting guidance to improve the transparency of reporting amounts reclassified out of other comprehensive income. Other comprehensive income (loss) includes gains and losses that are initially excluded from net income for an accounting period. Those gains and losses are later reclassified out of accumulated other comprehensive income into net income. This amendment does not change the current requirements for reporting net income or other comprehensive income in the financial statements. All of the information that this amendment requires already is required to be disclosed elsewhere in the financial statements under U.S. GAAP. This new amendment requires presentation either on the face of the statement where net income is presented or in the notes, the effects of significant amounts reclassified out of accumulated other comprehensive income, and that the reclassified amounts be cross-referenced to the other disclosures required under U.S. GAAP. This amendment was effective for reporting periods beginning after December 15, 2012. This amendment has not had a material impact on our condensed consolidated financial statements.
In December 2011, the FASB issued an amendment relating to the disclosure about offsetting assets and liabilities. This amendment requires disclosure to provide information to help reconcile differences in the offsetting requirements under U.S. GAAP and International Financial Reporting Standards ("IFRS"). A reporting entity will be required to disclose (1) the gross amount of recognized assets and liabilities, (2) the amounts offset to determine the net amounts presented in the statement of financial position, (3) the net amounts presented in the statement of financial position, (4) the amounts subject to an enforceable master netting arrangement or similar agreement not otherwise included in (2), and (5) the net amount after deducting the amounts in (4) and (3). This amendment was effective for a reporting entity’s interim and annual periods beginning on or after January 1, 2013. Following issuance of this amendment, considerable concerns were raised regarding the broad scope of this amendment. In response to the concerns, in January, 2013, the FASB issued a new amendment revising the scope of the disclosure requirements to apply only to derivatives, repurchase agreements and reverse repurchase agreements, and security borrowing and lending transactions subject to a master netting arrangement or similar agreement. As a result of this new amendment the disclosure about offsetting assets and liabilities did not have any impact to our consolidated 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 Argentina, China, South Africa, and Thailand. The net asset balance of our subsidiaries in the countries in which we operate that have such restrictions was $177 million and $183 million as of December 31, 2013 and 2012, 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, 2013
Text Block [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	Earnings per share of common stock outstanding were computed as follows:
		Year Ended December 31,
		2013		2012		2011
		(Millions Except Share and Per Share Amounts)
	Basic earnings per share —
	Net income attributable to Tenneco Inc.	$	183	$	275	$	157
	Average shares of common stock outstanding	60,474,492		59,985,677		59,884,139
	Earnings per average share of common stock	$	3.03	$	4.58	$	2.62
	Diluted earnings per share —
	Net income attributable to Tenneco Inc.	$	183	$	275	$	157
	Average shares of common stock outstanding	60,474,492		59,985,677		59,884,139
	Effect of dilutive securities:
	Restricted stock	205,020		140,609		168,539
	Stock options	914,550		957,224		1,467,482
	Average shares of common stock outstanding including dilutive securities	61,594,062		61,083,510		61,520,160
	Earnings per average share of common stock	$	2.97	$	4.5	$	2.55
	Options to purchase 205,104, 521,249 and 202,009 shares of common stock were outstanding as of December 31, 2013, 2012 and 2011, respectively, but not included in the computation of diluted earnings per share, because the options were anti-dilutive.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Acquisitions	'
	Acquisitions
	In August 2011, we purchased the remaining 25 percent equity interest in our clean air joint venture in Thailand for $4 million in cash. As a result of this purchase, our equity ownership of this joint venture investment changed to 100 percent from 75 percent.
	In September 2012, we purchased certain rights from Combustion Components Associates, Inc. primarily pertaining to emission control technology for stationary reciprocating engine applications for $7 million in cash.
	In the fourth quarter of 2013, we purchased an additional 20 percent equity interest in Tenneco Tongtai (Dalian) Exhaust System Co., Ltd. (TTEC) joint venture investment in China for $69 million in cash through two transactions. The joint venture partner also received an additional amount of $9 million in lieu of receiving its pro-rata share of dividends owed from the joint venture. As a result of the purchase, TTEC became a wholly owned indirect subsidiary of Tenneco.
	The table below summaries the net income attributable to Tenneco Inc. and transfers to the noncontrolling interest:
		Year Ended December 31,
		2013			2012		2011
		(Millions)
	Net income attributable to Tenneco Inc.	$	183		$	275	$	157
	Decrease in equity for purchase of noncontrolling equity interest	(68		)	—		(2		)
	Net income attributable to Tenneco Inc. shareholders less purchase of noncontrolling equity interest	115			275		155

Restructuring_and_Other_Charge

Restructuring and Other Charges	12 Months Ended
	Dec. 31, 2013
Text Block [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 2011, we incurred $8 million in restructuring and related costs, primarily related to headcount reductions in Europe and Australia and the closure of our ride performance plant in Cozad, Nebraska, all of which was recorded in cost of sales. In 2012, we incurred $13 million in restructuring and related costs, primarily related to headcount reductions in South America and non-cash asset write downs of $4 million in Europe, of which $10 million was recorded in cost of sales and $3 million was recorded in SG&A. In 2013, we incurred $78 million in restructuring and related costs, primarily related to European cost reduction efforts including non-cash asset write downs of $3 million, our exit from the distribution of aftermarket exhaust products and ending production of leaf springs in Australia, headcount reductions in various regions, and the net impact of freezing our defined benefit plans in the United Kingdom, of which $70 million was recorded in cost of sales, $6 million in SG&A, $1 million in engineering expense and $1 million in other expense.
	Amounts related to activities that are part of our restructuring plans are as follows:
		December 31,		2013	2013		Impact of Exchange Rates	December 31,
		2012		Expenses	Cash			2013
		Restructuring			Payments			Restructuring
		Reserve						Reserve
		(Millions)
	Employee Severance, Termination Benefits and Other Related Costs	$	—	75	(32	)	1	$	44
	Under the terms of our amended and restated senior credit agreement that took effect on March 22, 2012, we are allowed to exclude $80 million of cash charges and expenses, before taxes, related to cost reduction initiatives incurred after March 22, 2012 from the calculation of the financial covenant ratios required under our senior credit facility. As of December 31, 2013, we have excluded all allowable charges relating to restructuring initiatives against the $80 million available under the terms of the senior credit facility.
	On January 31, 2013, we announced our intent to reduce structural costs in Europe. This initiative includes the non-cash charges of $4 million we incurred in 2012 in connection with the announced closing of the Vittaryd facility in Sweden and a $7 million charge recorded in the fourth quarter of 2012 related to the impairment of certain assets in the European ride performance business. In August 2013, we completed the closure of the Vittaryd facility. On September 5, 2013, we announced our intent to close our ride performance plant in Gijon, Spain and reduce the workforce at our ride performance plant in Sint-Truiden, Belgium. The workers' council filed suit challenging the decision to close the Gijon plant and the local High Court of Justice of Asturias ruled in favor of the workers' council. On February 25, 2014, we announced the intention of the Company to appeal that decision to the Supreme Court of Spain in Madrid. We recorded $60 million in charges related to these actions in 2013. We incurred $78 million in restructuring and related costs in 2013, of which $69 million was related to this initiative including $3 million for non-cash asset write downs. These charges included non-cash asset impairments, the cost of relocating tooling, equipment and production to other facilities, severance and retention payments to employees and other costs related to these actions.

LongTerm_Debt_ShortTerm_Debt_a

Long-Term Debt, Short-Term Debt, and Financing Arrangements	12 Months Ended
	Dec. 31, 2013
Text Block [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, 2013 and 2012, is set forth in the following table:
		2013				2012
		(Millions)
	Tenneco Inc. —
	Revolver borrowings due 2017, average effective interest rate 2.7% in 2013 and 1.2% in 2012	$	58			$	92
	Senior Term Loan due 2014 through 2017, average effective interest rate 2.7% in 2013 and 3.0% in 2012	228				241
	7 3/4% Senior Notes due 2018	225				225
	6 7/8% Senior Notes due 2020	500				500
	Debentures due 2014 through 2026, average effective interest rate 7.5 in 2013 and 8.4% in 2012	1				1
	Customer Notes due 2013, average effective interest rate 8.0% in 2013 and 2012	—				1
	Other subsidiaries —
	Notes due 2014 through 2026, average effective interest rate 1.3% in both 2013 and 2012	9				10
		1,021				1,070
	Less — maturities classified as current	2				3
	Total long-term debt	$	1,019			$	1,067
	The aggregate maturities and sinking fund requirements applicable to the long-term debt outstanding at December 31, 2013, are $23 million, $35 million, $48 million, $184 million and $226 million for 2014, 2015, 2016, 2017 and 2018, respectively.
	We have excluded the required payments, within the next twelve months, under the Tranche A Term Facility totaling $22 million from current liabilities as of December 31, 2013, 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, 2013 and 2012 is as follows:
		2013				2012
		(Millions)
	Maturities classified as current	$	2			$	3
	Short-term borrowings	81				110
	Total short-term debt	$	83			$	113
		Notes Payable(a)
		2013				2012
		(Dollars in Millions)
	Outstanding borrowings at end of year	$	81			$	110
	Weighted average interest rate on outstanding borrowings at end of year(b)	4.4		%		5.3		%
	Approximate maximum month-end outstanding borrowings during year	$	177			$	156
	Approximate average month-end outstanding borrowings during year	$	116			$	123
	Weighted average interest rate on approximate average month-end outstanding borrowings during year(b)	4.7		%		5.5		%
	(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, 2013
		Term		Commitments				Borrowings			Letters of			Available
											Credit(b)
		(Millions)
	Tenneco Inc. revolving credit agreement	2017		850				58			37			755
	Tenneco Inc. tranche A term facility	2017		228				228			—			—
	Subsidiaries’ credit agreements	2014-2026		110				90			—			20
				$	1,188			$	376		$	37		$	775
	(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 March 22, 2012, we completed an amendment and restatement of our senior credit facility by increasing the amount and extending the maturity date of our revolving credit facility and adding a new Tranche A Term Facility. The amended and restated facility replaces our former $556 million revolving credit facility, $148 million Tranche B Term Facility and $130 million Tranche B-1 letter of credit/revolving loan facility. The proceeds from this refinancing transaction were used to repay our $148 million Tranche B Term Facility and to fund the purchase and redemption of our $250 million 8 1/8 percent senior notes due in 2015. As of December 31, 2013, the senior credit facility provides us with a total revolving credit facility size of $850 million and a $228 million Tranche A Term Facility, both of which will mature on March 22, 2017. Funds may be borrowed, repaid and re-borrowed under the revolving credit facility without premium or penalty. 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 enter into revolving loans under the facility. We are required to make quarterly principal payments under the Tranche A Term Facility of $3.1 million from June 30, 2012 through March 31, 2014, $6.3 million beginning June 30, 2014 through March 31, 2015, $9.4 million beginning June 30, 2015 through March 31, 2016, $12.5 million beginning June 30, 2016 through December 31, 2016 and a final payment of $125 million is due on March 22, 2017. We have excluded the required payments, within the next twelve months, under the Tranche A Term Facility totaling $22 million from current liabilities as of December 31, 2013, because we have the intent and ability to refinance the obligations on a long-term basis by using our revolving credit facility.
	On March 8, 2012, we announced a cash tender offer to purchase our outstanding $250 million 8 1/8 percent senior notes due in 2015 and a solicitation of consents to certain proposed amendments to the indenture governing these notes. We received tenders and consents representing $232 million aggregate principal amount of the notes and, on March 22, 2012, we purchased the tendered notes at a price of 104.44 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 April 6, 2012, we redeemed the remaining outstanding $18 million aggregate principal amount of senior notes that were not purchased pursuant to the tender offer at a price of 104.06 percent of the principal amount, plus accrued and unpaid interest. The additional liquidity provided by the new $850 million revolving credit facility and the new $250 million Tranche A Term Facility was used to fund the total cost of the tender offer and redemption, including all related fees and expenses.
	We recorded $17 million of pre-tax charges in March 2012 related to the refinancing of our senior credit facility, the repurchase and redemption of $232 million aggregate principal amount of our 8  1/8 percent senior notes due in 2015 and the write-off of deferred debt issuance costs relating to these senior notes. We recorded an additional $1 million of pre-tax charges during the second quarter of 2012 relating to the redemption of the remaining $18 million aggregate principal amount of our 8  1/8 percent senior notes which occurred in April 2012.
	At December 31, 2013, of the $850 million available under the revolving credit facility, we had unused borrowing capacity of $755 million with $58 million in outstanding borrowings and $37 million in outstanding letters of credit. As of December 31, 2013, our outstanding debt also included $228 million related to our Tranche A Term Facility due March 22, 2017, $225 million of 7 3/4 percent senior notes due August 15, 2018, $500 million of 6 7/8 percent senior notes due December 15, 2020, and $91 million of other debt.
	Senior Credit Facility — Interest Rates and Fees.    Beginning March 22, 2012, 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 250 basis points, or (ii) a rate consisting of the greater of (a) the JPMorgan Chase prime rate plus a margin of 150 basis points, (b) the Federal Funds rate plus 50 basis points plus a margin of 150 basis points, and (c) the Eurodollar Rate plus 100 basis points plus a margin of 150 basis points. The margin we pay on these borrowings will be reduced by a total of 25 basis points below the original margin following each fiscal quarter for which our consolidated net leverage ratio is less than 1.50 or will be increased by a total of 25 basis points above the original margin if our consolidated net leverage ratio is greater than or equal to 2.50. We also pay a commitment fee equal to 40 basis points. In February 2014, the margin we pay on borrowings decreased by 25 basis points below the original margin, as a result of a decrease in our consolidated net leverage ratio from 1.86 at September 30, 2013 to 1.39 at December 31, 2013.
	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 under 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 2013, are as follows:
		Quarter Ended
		March 31,						June 30,					September 30,			December 31,
		2013						2013					2013			2013
		Req.			Act.			Req.		Act.			Req.		Act.	Req.	Act.
	Leverage Ratio (maximum)	3.5			1.98			3.5		1.79			3.5		1.86	3.5	1.39
	Interest Coverage Ratio (minimum)	2.55			8.39			2.55		8.74			2.55		9.09	2.55	9.89
	The senior credit facility includes a maximum leverage ratio covenant of 3.50 through March 22, 2017 and a minimum interest coverage ratio of 2.55 through December 31, 2013 and 2.75 thereafter, through March 22, 2017.
	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); (ii) with the net cash proceeds of the incremental facilities (as defined in the senior credit facility agreement); (iii) with the net cash 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 March 22, 2012; 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) on a pro forma consolidated leverage ratio after giving effect to such purchase, cancellation or redemption):
	Pro forma Consolidated	Aggregate Senior
Leverage Ratio	Note Maximum Amount
	(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 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, 2013, 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, 2013, our outstanding senior notes included $225 million of 7 3/4 percent senior notes due August 15, 2018 and $500 million of 6 7/8 percent senior notes due December 15, 2020. 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 at any time on and after August 15, 2014 in the case of the senior notes due 2018, and December 15, 2015 in the case of the senior notes due 2020. In addition, prior to such dates 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 noteholders. If we sell certain of our assets or experience specified kinds of changes in control, we must offer to repurchase the notes due 2018 and 2020 at 101 percent of the principal amount thereof plus accrued and unpaid interest.
Our senior notes 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. The indentures also contain restrictions on our operations, including limitations on: (i) incurring additional indebtedness or liens; (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 these 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, 2013, 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 North America 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 North America, 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 2013, the North American program was amended and extended to March 21, 2014. The first priority facility continues to provide financing of up to $110 million and the second priority facility, which is subordinated to the first priority facility, continues to provide up to an additional $40 million of financing. Both facilities monetize accounts receivable generated in the U.S. and Canada that meet certain eligibility requirements. The second priority facility also monetizes certain accounts receivable generated in the U.S. or Canada 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 North American program was $10 million at December 31, 2013 and $50 million at December 31, 2012.
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 $134 million and $94 million at December 31, 2013 and December 31, 2012, respectively.
If we were not able to securitize receivables under either the North American 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 North American 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 North American 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 $2 million in interest expense for the year ended 2013 and $3 million in interest expense for each of the years ended 2012 and 2011, respectively, relating to our North American securitization program. In addition, we recognized a loss of $4 million, $4 million and $5 million for each of the years ended 2013, 2012 and 2011, 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 three percent for each of the years ended 2013, 2012 and 2011, respectively.

Financial_Instruments

Financial Instruments

12 Months Ended

Dec. 31, 2013

Text Block [Abstract]

'

Financial Instruments

'

Financial Instruments

The carrying and estimated fair values of our financial instruments by class at December 31, 2013 and 2012 were as follows:

31-Dec-13

31-Dec-12

Carrying

Fair

Carrying

Fair

Amount

Value

Amount

Value

(Millions)

Long-term debt (including current maturities)

$

1,021

$

1,089

$

1,070

$

1,136

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 $792 million and $790 million at December 31, 2013 and December 31, 2012, respectively. We have classified the $287 million and $334 million as level 2 in the fair value hierarchy at December 31, 2013 and December 31, 2012, respectively, since we utilize valuation inputs that are observable both directly and indirectly. We classified the remaining $10 million and $12 million, consisting of foreign subsidiary debt, as level 3 in the fair value hierarchy at December 31, 2013 , and December 31, 2012 , respectively.

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 exchange forward contracts, presented on a gross basis by derivative contract at December 31, 2013 and 2012, respectively, was as follows:

Fair Value of Derivative Instruments

31-Dec-13

31-Dec-12

Asset

Liability

Total

Asset

Liability

Total

Derivatives

Derivatives

Derivatives

Derivatives

(Millions)

Foreign exchange forward contracts

$

—

$

—

$

—

$

1

$

—

$

1

The fair value of our recurring financial assets and liabilities at December 31, 2013 and 2012, respectively, are as follows:

31-Dec-13

31-Dec-12

Level 1

Level 2

Level 3

Level 1

Level 2

Level 3

(Millions)

Financial Assets:

Foreign exchange contracts

$

—

$

—

$

—

n/a

$

1

n/a

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.

The following table summarizes by major currency the notional amounts for foreign currency forward purchase and sale contracts as of December 31, 2013 (all of which mature in 2014):

Notional Amount

in Foreign Currency

(Millions)

Australian dollars

—Purchase

3

British pounds

—Purchase

4

European euro

—Sell

(16

)

Japanese yen

—Purchase

135

—Sell

(842

)

Polish zloty

—Purchase

33

South African rand

—Purchase

144

U.S. dollars

—Purchase

15

—Sell

(15

)

Other

—Sell

(2

)

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 wholly-owned 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.

In March 2011, we entered into 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. As a result of our decision to enter into these performance guarantee agreements, the levy due to the U.K. Pension Protection Fund was reduced. 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, related to other participating employers, is approximately $27 million as of December 31, 2013 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. We did not record an additional liability in March 2011 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 $10 million and $7 million at December 31, 2013 and December 31, 2012, respectively. At December 31, 2013, all pension contributions under the Walker Plans 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, 2013, the maximum amount reimbursable by Futaba to TMEL is approximately $5 million.

We have issued guarantees through letters of credit in connection with some obligations of our affiliates. As of December 31, 2013, we have guaranteed $38 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.

Negotiable 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. The amount of these financial instruments that was collected before their maturity date and sold at a discount totaled $5 million and $6 million at December 31, 2013 and December 31, 2012, respectively. No negotiable financial instruments were held by our European subsidiary as of December 31, 2013 and December 31, 2012, respectively.

In certain instances, several of our Chinese subsidiaries receive payment from customers and satisfy vendor payments through the receipt and delivery of negotiable financial instruments. Financial instruments issued to satisfy vendor payables and not redeemed totaled $13 million and $12 million at December 31, 2013 and December 31, 2012, respectively, and were classified as notes payable. Financial instruments received from customers and not redeemed totaled $12 million and $8 million at December 31, 2013 and December 31, 2012, 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 if issued by our customer. We classified $12 million and $8 million in other current assets at December 31, 2013 and December 31, 2012, respectively. Some of our Chinese subsidiaries that issue their own negotiable financial instruments to pay vendors are required to maintain a cash balance if they exceed certain credit limits with the financial institution that guarantees those financial instruments. A restricted cash balance was not required at those Chinese subsidiaries at December 31, 2013 or December 31, 2012.

The negotiable financial instruments received by one of our European subsidiaries and some of our Chinese subsidiaries are checks drawn by our customers and guaranteed by their banks that are payable at a future date. The use of these instruments for payment follows local commercial practice. Because negotiable financial instruments are financial obligations of our customers and 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. Near the end of the second quarter of 2013 certain of our suppliers in the U.S. extended their payment terms to Tenneco. The liquidity benefit to Tenneco from the extended payment terms totaled $10 million at December 31, 2013. These suppliers also began participating in a supply chain financing program under which they securitize their accounts receivables from Tenneco with two financial institutions. The financial institutions participate in the supply chain financing program on an uncommitted basis and can cease purchasing receivables from Tenneco's suppliers at any time. If the financial institutions did not continue to purchase receivables from Tenneco's suppliers under this program, the participating vendors could reduce their payment terms to Tenneco which in turn would cause our borrowings under our revolving credit facility to increase.

Restricted Cash - Two of our Australian subsidiaries have arranged for $5 million in guarantees to be issued by a financial institution to support some of our subsidiaries' insurance arrangements and foreign employee benefit programs. These guarantees were supported by a cash deposit with the financial institution which has been classified as restricted cash on the Tenneco Inc. consolidated balance sheet at December 31, 2013.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Text Block [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,
		2013			2012			2011
		(Millions)
	U.S. income before income taxes	$	150		$	166		$	55
	Foreign income before income taxes	194			157			216
	Income before income taxes and noncontrolling interests	$	344		$	323		$	271
	Following is a comparative analysis of the components of income tax expense:
		Year Ended December 31,
		2013			2012			2011
		(Millions)
	Current —
	U.S. federal	$	25		$	—		$	—
	State and local	4			4			2
	Foreign	81			89			91
		110			93			93
	Deferred —
	U.S. federal	(4		)	(25		)	—
	State and local	2			(20		)	—
	Foreign	14			(29		)	(5		)
		12			(74		)	(5		)
	Income tax expense	$	122		$	19		$	88
	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,
		2013			2012			2011
		(Millions)
	Income tax expense computed at the statutory U.S. federal income tax rate	$	120		$	113		$	95
	Increases (reductions) in income tax expense resulting from:
	Foreign income taxed at different rates	(21		)	(21		)	(14		)
	Taxes on repatriation of dividends	9			8			6
	Remeasurement of estimated tax on unremitted earnings	(17		)	—			—
	State and local taxes on income, net of U.S. federal income tax benefit	6			4			2
	Changes in valuation allowance for tax loss carryforwards and credits	27			(91		)	(11		)
	Foreign tax holidays	(5		)	(5		)	(4		)
	Investment and R&D tax credits	(8		)	(1		)	(4		)
	Foreign earnings subject to U.S. federal income tax	5			23			6
	Adjustment of prior years taxes	(1		)	(5		)	—
	Impact of tax law changes	(3		)	(1		)	—
	Tax contingencies	6			(6		)	3
	Goodwill impairment	—			—			3
	Other	4			1			6
	Income tax expense	$	122		$	19		$	88
	The components of our net deferred tax assets were as follows:
		Year Ended December 31,
		2013			2012
		(Millions)
	Deferred tax assets —
	Tax loss carryforwards:
	U.S. federal	$	—		$	—
	State	23			23
	Foreign	78			63
	Tax credit benefits	88			51
	Postretirement benefits other than pensions	43			50
	Pensions	36			87
	Bad debts	1			1
	Sales allowances	6			6
	Payroll and other accruals	132			119
	Valuation allowance	(135		)	(118		)
	Total deferred tax assets	272			282
	Deferred tax liabilities —
	Tax over book depreciation	56			57
	Other	51			70
Total deferred tax liabilities	107			127
Net deferred tax assets	$	165		$	155
U.S. and state tax loss carryforwards have been presented net of uncertain tax positions that if realized, would reduce tax loss carryforwards in 2013 and 2012 by $4 million and $47 million, respectively.
Following is a reconciliation of deferred taxes to the deferred taxes shown in the balance sheet:
	Year Ended December 31,
	2013			2012
	(Millions)
Balance Sheet:
Current portion — deferred tax asset	$	71		$	72
Non-current portion — deferred tax asset	125			116
Current portion — deferred tax liability shown in other current liabilities	(3		)	(6		)
Non-current portion — deferred tax liability	(28		)	(27		)
Net deferred tax assets	$	165		$	155
As a result of the valuation allowances recorded for $135 million and $118 million at December 31, 2013 and 2012, 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 and U.S. state net operating losses that are available to reduce future tax liabilities.
We reported income tax expense of $122 million, $19 million and $88 million in the years ended 2013, 2012 and 2011, respectively. The tax expense recorded in 2013 differs from the expense that would be recorded using a U.S. Federal statutory rate of 35 percent primarily due to the impact of recording a valuation allowance against a tax benefit for restructuring activities in Spain and Belgium and U.S. taxes on repatriation of dividends, partially offset by tax adjustments related to recognizing a U.S. tax benefit for foreign taxes and a favorable mix of income generated in low tax rate jurisdictions.
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.
In 2012, we reversed the tax valuation allowance that we recorded in 2008 against our net deferred tax assets in the U.S. based on operating improvements we had made, the outlook for light and commercial vehicle production in the U.S. and the positive impact this should have on our U.S. operations. The net income impact of the tax valuation allowance release in the U.S was a tax benefit of approximately $81 million. We now have a federal net operating loss ("NOL") at December 31, 2013 of $37 million, which expires in 2030. The state NOLs expire in various tax years through 2032.
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.
In 2012, after considering all available evidence and all possible sources of taxable income, we recorded a $19 million tax valuation allowance in Spain for tax credits that may not be utilized due to tax losses in Spain.
The valuation allowances recorded against deferred tax assets generated by taxable losses in Spain and certain other 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.
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 $858 million at December 31, 2013. 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.
We have tax sharing agreements with our former affiliates that allocate tax liabilities for periods prior to year 2000 and establish indemnity rights on certain tax issues.
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:
	2013			2012			2011
	(Millions)
Uncertain tax positions —
Balance January 1	$	107		$	119		$	111
Gross increases in tax positions in current period	15			13			19
Gross increases in tax positions in prior period	—			1			3
Gross decreases in tax positions in prior period	(1		)	(12		)	(10		)
Gross decreases — settlements	—			(5		)	—
Gross decreases — statute of limitations expired	(6		)	(9		)	(4		)
Balance December 31	$	115		$	107		$	119
Included in the balance of uncertain tax positions were $107 million in 2013, $101 million in 2012, $36 million at December 31, 2011, 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 2013, 2012 and 2011. Additionally, we accrued interest related to uncertain tax positions of less than $2 million in 2013, less than $1 million in 2012, and $2 million in 2011. Our liability for penalties was $2 million at 2013, $3 million at December 31, 2012 and $2 million at December 31, 2011, respectively, and our liability for interest was $7 million, $5 million, and $7 million at December 31, 2013, 2012 and 2011, respectively.
Our uncertain tax position at December 31, 2013 and 2012 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 $4 million in unrecognized tax benefits related to the expiration of foreign statute of limitations and the conclusion of income tax examinations may occur within the coming year.
We are subject to taxation in the U.S. and various state and foreign jurisdictions. As of December 31, 2013, our tax years open to examination in primary jurisdictions are as follows:
	Open To Tax
	Year
United States	2000
China	2003
Spain	2003
Canada	2007
Brazil	2008
Mexico	2008
Belgium	2011
Germany	2011
United Kingdom	2012

Common_Stock

Common Stock	12 Months Ended
	Dec. 31, 2013
Common Stock	'
	Common Stock
	We have authorized 135 million shares ($0.01 par value) of common stock, of which 63,714,728 shares and 62,789,382 shares were issued at December 31, 2013 and 2012, respectively. We held 2,844,692 and 2,294,692 shares of treasury stock at December 31, 2013 and 2012, 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, 2013, up to 3,979,918 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 also have granted stock equivalent units and long-term performance units to certain key employees that are payable in cash. At December 31, 2013, the long-term performance units outstanding included a three-year grant for 2011-2013 payable in the first quarter of 2014, a three-year grant for 2012-2014 payable in the first quarter of 2015, and a three-year grant for 2013-2015 payable in the first quarter of 2016. 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 of $6 million, $5 million, and $3 million in the years ended December 31, 2013, 2012 and 2011, respectively, related to nonqualified stock options as part of our selling, general and administrative expense. This resulted in a $0.10 decrease in basic and a $0.09 decrease in diluted earnings per share in 2013, a $0.09 decrease in basic and a $0.08 decrease in diluted earnings per share in 2012, and a $0.05 decrease in both basic and diluted earnings per share in 2011.
	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, 2013, there was approximately $6 million of unrecognized compensation costs related to our stock options awards that we expect to recognize over a weighted average period of 1.2 years.
	Compensation expense for restricted stock, restricted stock units, long-term performance units and SARs was $17 million, $16 million, and $11 million for each of the years ended 2013, 2012 and 2011, respectively, and was recorded in selling, general, and administrative expense on the consolidated statements of income.
	Cash received from stock option exercises was $15 million in 2013, $7 million in 2012, and $6 million in 2011. Stock option exercises would have generated an excess tax benefit of $6 million in 2013 and $10 million in both 2012 and 2011. This tax benefit was not recorded because we still have federal net operating losses that have not been utilized.
	In 2013 we recorded a tax benefit of $24 million related to the historic tax benefit on stock options from 2006 through 2011 because we began utilizing some of our federal and state net operating losses.
	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.
		2013				2012				2011
	Stock Options Granted:
	Weighted average grant date fair value, per share	$	19.84			$	17.35			$	26.13
	Weighted average assumptions used:
	Expected volatility	66.4		%		73.5		%		70.1		%
	Expected lives	4.9				4.7				4.8
	Risk-free interest rates	0.7		%		0.8		%		1.8		%
	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, 2013
		Shares			Weighted Avg.				Weighted Avg.		Aggregate
		Under			Exercise				Remaining		Intrinsic
		Option			Prices				Life in Years		Value
											(Millions)
	Outstanding Stock Options:
	Outstanding, January 1, 2013	2,447,475			$	20.14			4.1		$	29
	Granted	311,539			36.29
	Canceled	(7,225	)		11.73
	Forfeited	(14,920	)		14.59
	Exercised	(82,622	)		19.96						1
	Outstanding, March 31, 2013	2,654,247			$	22.12			4.3		$	41
	Granted	388			38.9
	Forfeited	(450	)		21.81
	Exercised	(393,442	)		22.53						7
	Outstanding, June 30, 2013	2,260,743			$	22.06			4.7		$	44
	Granted	1,182			35.41
	Forfeited	(283	)		8.68
	Exercised	(147,753	)		15.42						—
	Outstanding, September 30, 2013	2,113,889			$	22.52			4.6		$	56
	Granted	—			—
	Canceled	—			—
	Forfeited	—			—
	Exercised	(130,316	)		16.23						5
	Outstanding, December 31, 2013	1,983,573			$	22.93			4.5		$	62
	Of the outstanding 1,983,573 options, 1,397,102 are currently exercisable and have an intrinsic value of $51, a weighted average exercise price of 17.82 and a weighted average remaining life of 4.7 years.
	The weighted average grant-date fair value of options granted during the years 2013, 2012 and 2011 was $19.86, $17.49 and $26.11, respectively. The total intrinsic value of options exercised during the years ended December 31, 2013, 2012, and 2011 was $19 million, $10 million and $13 million, respectively. The total fair value of shares vested was $5 million, $4 million, and $3 million in 2013, 2012 and 2011.
	Restricted Stock — The following table reflects the status for all nonvested restricted shares for the period indicated:
		Year Ended December 31, 2013
		Shares			Weighted Avg.
					Grant Date
					Fair Value
	Nonvested Restricted Shares
	Nonvested balance at January 1, 2013	348,918			$	31.69
	Granted	204,731			36.28
	Vested	(154,160	)		29.54
	Forfeited	—			—
	Nonvested balance at March 31, 2013	399,489			$	34.88
	Granted	226			38.9
	Vested	(15,289	)		35.4
Forfeited	—			—
Nonvested balance at June 30, 2013	384,426			$	34.86
Granted	2,223			46.91
Vested	(16,255	)		35.58
Forfeited	—			—
Nonvested balance at September 30, 2013	370,394			$	34.9
Granted	—			—
Vested	(2,126	)		34.93
Forfeited	—			—
Nonvested balance at December 31, 2012	368,268			$	34.9
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, 2013, approximately $6 million of total unrecognized compensation costs related to restricted stock awards is expected to be recognized over a weighted-average period of approximately 1.7 years.
The weighted average grant-date fair value of restricted stock granted during the years 2013, 2012 and 2011 was $36.40, $30.06, and $45.38, respectively. The total fair value of restricted shares vested was $6 million in 2013, $5 million in 2012 and $3 million in 2011.
Share Repurchase Program — In January 2012, our Board of Directors approved a share repurchase program, authorizing us to repurchase up to 600,000 shares of our outstanding common stock over a 12 months period. This share repurchase program was intended to offset dilution from shares of restricted stock and stock options issued in 2012 to employees. We purchased all of the 600,000 shares during the second quarter of 2012 through open market purchases, which were funded through cash from operations, at a total cost of $18 million, at an average price of $29.22 per share. These repurchased shares are held as part of our treasury stock which increased to 2,294,692 shares at December 31, 2012 from 1,694,692 shares at December 31, 2011.
In January 2013, our Board of Directors approved a share repurchase program, authorizing our company to repurchase up to 550,000 shares of our outstanding common stock over a 12 month period. This share repurchase program is intended to offset dilution from shares of restricted stock and stock options issued in 2013 to employees. We purchased 450,000 shares through open market purchases and 100,000 shares from the Tenneco Retirement Plan for Salaried Employees, both of which were funded through cash from operations, at a total cost of $27 million, at an average price of 49.33 per share. These repurchased shares are held as part of our treasury stock which increased to 2,844,692 shares at December 31, 2013 from 2,294,692 shares at December 31, 2012 .
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 is intended to offset dilution from shares of restricted stock and stock options issued in 2014 to employees.
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, 2013, $13 million of total unrecognized compensation costs is expected to be recognized over a weighted-average period of approximately 1.2 years.

Preferred_Stock

Preferred Stock	12 Months Ended
	Dec. 31, 2013
Preferred Stock	'
	Preferred Stock
	We had 50 million shares of preferred stock ($0.01 par value) authorized at December 31, 2013 and 2012, 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, 2013
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 $863 million benefit obligation at December 31, 2013, approximately $779 million required funding under applicable federal and foreign laws. At December 31, 2013, we had approximately $726 million in assets to fund that obligation. The balance of our benefit obligation, $84 million, did not require funding under applicable federal or foreign laws and regulations. Pension plan assets were invested in the following classes of securities:
		Percentage of Fair Market Value
		31-Dec-13						31-Dec-12
		US			Foreign			US			Foreign
	Equity Securities	71	%		62	%		70	%		59	%
	Debt Securities	29	%		31	%		30	%		33	%
	Real Estate	—			2	%		—			2	%
	Other	—			5	%		—	%		6	%
	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, 2013 and 2012, 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, 2013
		US											Foreign
	Asset Category	Level 1				Level 2				Level 3			Level 1				Level 2			Level 3
		(Millions)
	Equity securities:
	U.S. large cap	$	41			$	143			$	—		$	31			$	21		$	—
	U.S. mid cap	—				—				—			4				4			—
	U.S. Small Cap	—				27				—			—				—			—
	Non-U.S. large cap	—				—				—			57				71			—
	Non-U.S. mid cap	—				27				—			20				19			—
	Non-U.S. small cap	—				—				—			1				7			—
	Emerging markets	—				8				—			—				4			—
	Debt securities:
	U.S. corporate bonds	—				5				—			—				4			—
	U.S. other fixed income	—				96				—			—				—			—
	Non-U.S. treasuries/government bonds	—				—				—			35				25			—
	Non-U.S. corporate bonds	—				—				—			18				18			—
	Non-U.S. mortgage backed securities	—				—				—			—				4			—
	Non-U.S. municipal obligations	—				—				—			1				—			—
	Non-U.S. asset backed securities	—				—				—			—				3			—
	Non-U.S. other fixed income	—				—				—			1				2			—
	Real Estate:
	Non-U.S. real estate	—				—				—			1				5			—
	Other:
	Insurance contracts	—				—				—			—				9			8
	Cash held in bank accounts	—				—				—			6				—			—
	Total	$	41			$	306			$	—		$	175			$	196		$	8
		Fair Value Level as of December 31, 2012
		US											Foreign
	Asset Category	Level 1				Level 2				Level 3			Level 1				Level 2			Level 3
		(Millions)
	Equity securities:
	U.S. large cap	$	29			$	117			$	—		$	26			$	15		$	—
	U.S. mid cap	—				—				—			2				5			—
	U.S. Small Cap	—				20				—			—				—			—
	Non-U.S. large cap	—				—				—			48				63			—
	Non-U.S. mid cap	—				20				—			13				16			—
	Non-U.S. small cap	—				—				—			1				4			—
	Emerging markets	—				7				—			2				1			—
	Debt securities:
	U.S. treasuries/government bonds	—				—				—			—				—			—
	U.S. corporate bonds	—				4				—			—				—			—
	U.S. mortgage backed securities	—				—				—			—				—			—
	U.S. asset backed securities	—				—				—			—				—			—
	U.S. other fixed income	—				78				—			—				—			—
	Non-U.S. treasuries/government bonds	—				—				—			36				24			—
	Non-U.S. corporate bonds	—				—				—			18				24			—
	Non-U.S. mortgage backed securities	—				—				—			—				3			—
	Non-U.S. municipal obligations	—				—				—			1				—			—
	Non-U.S. asset backed securities	—				—				—			—				3			—
	Non-U.S. other fixed income	—				—				—			1				—			—
	Real Estate:
Non-U.S. real estate	—				—				—			1				5			—
Other:
Insurance contracts	—				—				—			—				8			8
Cash held in bank accounts	—				—				—			4				—			—
Total	$	29			$	246			$	—		$	153			$	171		$	8
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:
	31-Dec-13								31-Dec-12
	Level 3 Assets								Level 3 Assets
	US				Foreign				US			Foreign
	(Millions)								(Millions)
Balance at December 31 of the previous year	$	—			$	8			$	—		$	6
Actual return on plan assets:
Relating to assets still held at the reporting date	—				—				—			2
Ending Balance at December 31	$	—			$	8			$	—		$	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
								Total Assets
	(Millions)
2013:00:00
Tenneco Stock	1			$	41			5.6	%
2012:00:00
Tenneco Stock	1			$	29			4.7	%
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.
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
	2013								2012							2013			2012
	US				Foreign				US			Foreign				US			US
	(Millions)
Change in benefit obligation:
Benefit obligation at December 31 of the previous year	$	461			$	431			$	414		$	370			$	131		$	140
Currency rate conversion	—				(2		)		—			13				—			—
Settlement	—				(1		)		—			(4		)		—			—
Curtailment	—				(1		)
Service cost	1				9				1			7				—			—
Interest cost	19				17				20			18				5			6
Administrative expenses/taxes paid	—				(2		)		—			(1		)		—			—
Plan amendments	—				1				—			—				—			—
Actuarial (gain)/loss	(41		)		6				44			42				(16		)	(6		)
Benefits paid	(19		)		(18		)		(18		)	(16		)		(8		)	(9		)
Participants’ contributions	—				2				—			2				—			—
Benefit obligation at December 31	$	421			$	442			$	461		$	431			$	112		$	131
Change in plan assets:
Fair value at December 31 of the previous year	$	275			$	332			$	239		$	290			$	—		$	—
Currency rate conversion	—				(3		)		—			11				—			—
Settlement	—				(1		)		—			(4		)		—			—
Actual return on plan assets	60				43				28			27				—			—
Administrative expenses/taxes paid	—				(2		)		—			—				—			—
Employer contributions	31				26				26			22				8			10
Prescription drug subsidy received	—				—				—			—				—			(1		)
Participants’ contributions	—				2				—			2				—			—
Benefits paid	(19		)		(18		)		(18		)	(16		)		(8		)	(9		)
Fair value at December 31	$	347			$	379			$	275		$	332			$	—		$	—
Development of net amount recognized:
Unfunded status at December 31	$	(74	)		$	(62	)		$	(186	)	$	(99	)		$	(112	)	$	(131	)
Unrecognized cost:
Actuarial loss	190				137				278			168				32			52
Prior service cost/(credit)	1				7				1			8				(16		)	(22		)
Net amount recognized at December 31	$	117			$	82			$	93		$	77			$	(96	)	$	(101	)
Amounts recognized in the balance sheets as of December 31
Noncurrent assets	—				11				—			—				—			—
Current liabilities	(6		)		(2		)		(3		)	(2		)		(8		)	(8		)
Noncurrent liabilities	(68		)		(71		)		(183		)	(97		)		(104		)	(123		)
Net amount recognized	$	(74	)		$	(62	)		$	(186	)	$	(99	)		$	(112	)	$	(131	)
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 2013, 2012 and 2011, consist of the following components:
	2013								2012							2011
	US				Foreign				US			Foreign				US			Foreign
	(Millions)
Service cost — benefits earned during the year	$	1			$	9			$	1		$	7			$	1		$	6
Interest cost	19				17				20			18				20			19
Expected return on plan assets	(22		)		(20		)		(22		)	(20		)		(23		)	(20		)
Curtailment loss	—				—				—			—				—			—
Settlement loss	—				1				—			1				—			1
Net amortization:
Actuarial loss	9				10				7			7				4			5
Prior service cost	—				1				—			2				—			2
Net pension costs	$	7			$	18			$	6		$	15			$	2		$	13
Amounts recognized in accumulated other comprehensive loss for pension benefits consist of the following components:
	2013								2012
	US				Foreign				US			Foreign
	(Millions)
Net actuarial loss	$	190			$	137			$	278		$	168
Prior service cost	1				7				1			8
	$	191			$	144			$	279		$	176
Amounts recognized for pension and postretirement benefits in other comprehensive income for the year ended December 31, 2013 and 2012 include the following components:
	Year Ended December 31,
	2013											2012
	Before-Tax				Tax				Net-of-Tax			Before-Tax				Tax			Net-of-Tax
	Amount				Benefit				Amount			Amount				Benefit			Amount
	(Millions)
Defined benefit pension and postretirement plans:
Change in total actuarial loss	$	113			$	(41	)		$	72		$	(66	)		$	22		$	(44	)
Amortization of prior service cost included in net periodic pension and postretirement cost	(5		)		2				(3		)	(4		)		2			(2		)
Amortization of actuarial loss included in net periodic pension and postretirement cost	23				(7		)		16			20				(6		)	14
Other comprehensive income — pension benefits	$	131			$	(46	)		$	85		$	(50	)		$	18		$	(32	)
In 2014, we expect to recognize the following amounts, which are currently reflected in accumulated other comprehensive loss, as components of net periodic benefit cost:
	2014
	US				Foreign
	(Millions)
Net actuarial loss	$	7			$	7
Prior service cost	—				1
	$	7			$	8
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, 2013 and 2012 were as follows:
	31-Dec-13								31-Dec-12
	US				Foreign				US			Foreign
	(Millions)
Projected benefit obligation	$	421			$	289			$	461		$	400
Accumulated benefit obligation	421				286				461			389
Fair value of plan assets	347				218				275			301
The following estimated benefit payments are payable from the pension plans to participants:
Year	US				Foreign
	(Millions)
2014	$	24			$	17
2015	21				17
2016	21				19
2017	28				18
2018	22				19
2019-2022	131				140
The following assumptions were used in the accounting for the pension plans for the years of 2013, 2012, and 2011:
	2013						2012
	US			Foreign			US			Foreign
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.8	%		4.3	%		4.1	%		4.2	%
Rate of compensation increase	N/A			3.3	%		N/A			3.4	%
	2013						2012					2011
	US			Foreign			US			Foreign		US			Foreign
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.1	%		4.2	%		4.8	%		4.9	%	5.6	%		5.4	%
Expected long-term return on plan assets	7.8	%		6.2	%		8.3	%		6.3	%	8.3	%		6.4	%
Rate of compensation increase	N/A			3.4	%		N/A			3.5	%	N/A			3.5	%
We made contributions of $57 million to our pension plans during 2013. Based on current actuarial estimates, we believe we will be required to make contributions of $47 million to those plans during 2014. Pension contributions beyond 2014 will be required, but those amounts will vary based upon many factors, including the performance of our pension fund investments during 2014 and future discount rate changes.
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 2013, 2012, and 2011, consists of the following components:
	2013				2012				2011
	(Millions)
Service cost — benefits earned during the year	$	—			$	1			$	1
Interest on accumulated postretirement benefit obligation	5				6				7
Net amortization:
Actuarial loss	4				5				4
Prior service credit	(6		)		(6		)		(6		)
Net periodic postretirement benefit cost	$	3			$	6			$	6
In 2014, we expect to recognize the following amounts, which are currently reflected in accumulated other comprehensive loss, as components of net periodic benefit cost:
	2014
	(Millions)
Net actuarial loss	$	2
Prior service credit	(6		)
	$	(4	)
The following estimated postretirement benefit payments are payable from the plan to participants:
Year	Postretirement
	Benefits
	(Millions)
2014	$	8
2015	8
2016	8
2017	8
2018	8
2019-2022	38
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 2013 accumulated postretirement benefit obligation was 7.0 percent, declining to 4.5 percent by 2019. For 2012, the health care cost trend rate was 7.5 percent declining to 4.5 percent by 2019 and for 2011, the health care cost trend rate was 8.0 percent declining to 4.5 percent by 2019.
The following assumptions were used in the accounting for postretirement cost for the years of 2013, 2012 and 2011:
	2013			2012
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.8	%		4.1	%
Rate of compensation increase	N/A			N/A
	2013			2012			2011
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate	4.1	%		4.8	%		5.6	%
Rate of compensation increase	N/A			N/A			N/A
A one-percentage-point increase in the 2013 assumed health care cost trend rates would increase total service and interest cost by less than $1 million and would increase the postretirement benefit obligation by $8 million. A one-percentage-point decrease in the 2013 assumed health care cost trend rates would decrease the total service and interest cost by less than $1 million and decrease the postretirement benefit obligation by $7 million.
Based on current actuarial estimates, we believe we will be required to make postretirement contributions of approximately $8 million during 2014.
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 in cash 100 percent on the first three percent and 50 percent on the next two percent of employee contributions. 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 $23 million, $21 million and $18 million in 2013, 2012 and 2011, respectively. Matching contributions vest immediately. Defined benefit replacement contributions fully vest on the employee’s third anniversary of employment.

Segment_and_Geographic_Area_In

Segment and Geographic Area Information	12 Months Ended
	Dec. 31, 2013
Segment and Geographic Area Information	'
	Segment and Geographic Area Information
	In connection with the organizational changes announced on February 14, 2013 that aligned our businesses along product lines, effective with 2013, our three prior geographic reportable segments have each been split into two product segments. Beginning with 2013, we are managed and organized 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." Prior period segment information has been revised to reflect our new reporting segments.
	Segment results for 2013, 2012 and 2011 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
		America							Pacific		America					Pacific
		(Millions)
	At December 31, 2013, and for the Year Ended
	Revenues from external customers	$	2,659		$	1,933			$	852	$	1,255	$	1,046		$	219		$	—		$	—		$	7,964
	Intersegment revenues	7			112				1		10		41			32			—			(203		)	—
	EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	229			57				84		124		(7		)	22			(85		)	—			424
	Total assets	1,030			827				544		628		552			213			—			36			3,830
	At December 31, 2012, and for the Year Ended
	Revenues from external customers	2,506			1,726				694		1,213		1,041			183			—			—			7,363
	Intersegment revenues	6			101				1		10		53			30			—			(201		)	—
	EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	202			54				71		122		41			5			(67		)	—			428
	Total assets	1,029			725				435		593		600			202			—			24			3,608
	At December 31, 2011, and for the Year Ended
	Revenues from external customers	$	2,288		$	1,849			$	624	$	1,126	$	1,164		$	154		$	—		$	—		$	7,205
	Intersegment revenues	3			104				—		9		52			26			—			(194		)	—
	EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	172			79				47		76		69			(6		)	(58		)	—			379
	Total assets	889			719				386		530		607			181			—			25			3,337
	The following table shows information relating to our external customer revenues for each product or each group of similar products:
		Net Sales
		Year Ended December 31,
		2013			2012				2011
		(Millions)
	Clean Air Systems & Products
	Aftermarket	$	327		$	318			$	351
	Original Equipment
	OE Value-add	3,282			2,948				2,732
	OE Substrate	1,835			1,660				1,678
		5,117			4,608				4,410
		5,444			4,926				4,761
	Ride Performance Systems & Products
	Aftermarket	953			944				944
	Original Equipment	1,567			1,493				1,500
		2,520			2,437				2,444
	Total Revenues	$	7,964		$	7,363			$	7,205
	The following customers accounted for 10 percent or more of our net sales in the last three years.
	Customer	2013		2012			2011
	General Motors	15	%	17	%		19	%
	Ford	14	%	15	%		15	%
	The following table shows information relating to the geographic regions in which we operate:
		Geographic Area
		United			Germany				Canada		China		Other			Reclass &			Consolidated
		States											Foreign(a)			Elims
		(Millions)
	At December 31, 2013, and for the Year Then Ended
	Revenues from external customers(b)	$	3,144		$	941			$	387	$	875	$	2,617		$	—		$	7,964
	Long-lived assets(c)	448			120				59		158		531			—			1,316
	Total assets	1,552			358				182		602		1,326			(190		)	3,830
	At December 31, 2012, and for the Year Then Ended
	Revenues from external customers(b)	$	2,975		$	817			$	389	$	661	$	2,521		$	—		$	7,363
	Long-lived assets(c)	429			115				57		139		521			—			1,261
	Total assets	1,521			344				168		448		1,307			(180		)	3,608
	At December 31, 2011, and for the Year Then Ended
	Revenues from external customers(b)	$	2,795		$	826			$	343	$	567	$	2,674		$	—		$	7,205
	Long-lived assets(c)	359			110				57		104		530			—			1,160
	Total assets	1,280			347				163		387		1,251			(91		)	3,337
	(a)	Revenues from external customers and long-lived assets for individual foreign countries other than Germany, Canada, and China 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, 2013
Commitments and Contingencies	'
	Commitments and Contingencies
	Capital Commitments
	We estimate that expenditures aggregating approximately $100 million will be required after December 31, 2013 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 $40 million in 2014, $30 million in 2015, $21 million in 2016, $15 million in 2017, and $11 million in 2018 and $25 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 2013, 2012 and 2011 was $58 million, $55 million and $52 million, respectively.
	Environmental Matters, Litigation 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, and presently enacted laws and regulations 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. Further, 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. All other environmental liabilities are recorded at their undiscounted amounts. 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.
	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, 2013, we have the obligation to remediate or contribute towards the remediation of certain sites, including one Federal Superfund site. At December 31, 2013, our aggregated estimated share of environmental remediation costs for all these sites on a discounted basis was approximately $15 million, of which $3 million is recorded in other current liabilities and $12 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 2.8 percent. The undiscounted value of the estimated remediation costs was $19 million. Our expected payments of environmental remediation costs are estimated to be approximately $3 million in 2014, $1 million each year beginning 2015 through 2018 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 towards 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 results of operations, financial position or cash flows.
	We also from time to time are involved in 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, employment matters, and commercial or contractual disputes, sometimes related to acquisitions or divestitures. Some of these matters involve allegations relating to legal compliance. For example, one of our Argentine subsidiaries is currently defending against a criminal complaint alleging the failure to comply with laws requiring the proceeds of export transactions to be collected, reported and/or converted to local currency within specified time periods. As another example, in the U.S. we are subject to an audit in 11 states with respect to the payment of unclaimed property to those states, spanning a period as far back as over 30 years. While we vigorously defend ourselves against all of these claims, 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, we do not expect that the legal proceedings or claims currently pending against us will have any material adverse impact on our future consolidated financial position, results of operations or cash flows.
	In addition, we are subject to lawsuits initiated by a significant number of claimants alleging health problems as a result of exposure to asbestos. In the early 2000’s we were named in nearly 20,000 complaints, most of which were filed in Mississippi state court and the vast majority of which made no allegations of exposure to asbestos from our product categories. Most of these claims have been dismissed and our current docket of active and inactive cases is less than 500 cases nationwide. A small number of claims have been asserted by railroad workers alleging exposure to asbestos products in railroad cars manufactured by The Pullman Company, one of our subsidiaries. The substantial majority of the remaining claims are related to alleged exposure to asbestos in our automotive products. Only a small percentage of the claimants allege that they were automobile mechanics and a significant number appear to involve workers in other industries or otherwise do not include sufficient information to determine whether there is any basis for a claim against us. We believe, based on scientific and other evidence, it is unlikely that mechanics 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 of some cases exceeding 100 defendants from a variety of industries. Additionally, 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 condition, results of operations or cash flows.
	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 on OE 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
		December 31,
		2013			2012			2011
		(Millions)
	Beginning Balance	$	23		$	26		$	33
	Accruals related to product warranties	20			15			11
	Reductions for payments made	(19		)	(18		)	(18		)
	Ending Balance	$	24		$	23		$	26
	In the fourth quarter of 2011, we encountered an issue in our North America OE ride performance business involving struts supplied on one particular OE platform. As a result, we directly incurred approximately $2 million in premium freight and overtime costs in the fourth quarter of 2011 and $3 million in 2012. In the first quarter of 2013 we incurred a charge of $2 million in connection with the resolution of all existing claims pertaining to this matter. We paid the customer the $2 million in the second quarter of 2013.

Supplemental_Guarantor_Condens

Supplemental Guarantor Condensed Consolidating Financial Statements	12 Months Ended
	Dec. 31, 2013
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 2018 and 2020 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, 2013
		Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
		Subsidiaries			Subsidiaries			(Parent			& Elims
								Company)
		(Millions)
	Revenues
	Net sales and operating revenues —
	External	$	3,498		$	4,466		$	—		$	—		$	7,964
	Affiliated companies	350			572			—			(922		)	—
		3,848			5,038			—			(922		)	7,964
	Costs and expenses
	Cost of sales (exclusive of depreciation and amortization shown below)	3,103			4,553			—			(922		)	6,734
	Goodwill impairment charge	—			—			—			—			—
	Engineering, research, and development	66			78			—			—			144
	Selling, general, and administrative	187			260			6			—			453
	Depreciation and amortization of other intangibles	78			127			—			—			205
		3,434			5,018			6			(922		)	7,536
	Other income (expense)
	Loss on sale of receivables	—			(4		)	—			—			(4		)
	Other income (expense)	(1		)	59			—			(58		)	—
		(1		)	55			—			(58		)	(4		)
	Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income from affiliated companies	413			75			(6		)	(58		)	424
	Interest expense —
	External (net of interest capitalized)	(2		)	5			77			—			80
	Affiliated companies (net of interest income)	70			(72		)	2			—			—
	Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies	345			142			(85		)	(58		)	344
	Income tax expense	60			62			—			—			122
	Equity in net income (loss) from affiliated companies	32			—			268			(300		)	—
	Net income (loss)	317			80			183			(358		)	222
	Less: Net income attributable to noncontrolling interests	—			39			—			—			39
	Net income (loss) attributable to Tenneco Inc.	$	317		$	41		$	183		$	(358	)	$	183
	Comprehensive income (loss) attributable to Tenneco Inc.	$	390		$	16		$	183		$	(358	)	$	231
	STATEMENT OF COMPREHENSIVE INCOME (LOSS)
		For the Year Ended December 31, 2012
		Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
		Subsidiaries			Subsidiaries			(Parent			& Elims
								Company)
		(Millions)
	Revenues
	Net sales and operating revenues —
	External	$	3,331		$	4,032		$	—		$	—		$	7,363
	Affiliated companies	182			547			—			(729		)	—
		3,513			4,579			—			—			7,363
	Costs and expenses
	Cost of sales (exclusive of depreciation and amortization shown below)	3,056			3,843			—			(729		)	6,170
	Goodwill impairment charge	—			—			—			—			—
	Engineering, research, and development	57			69			—			—			126
	Selling, general, and administrative	198			224			5			—			427
	Depreciation and amortization of other intangibles	72			133			—			—			205
		3,383			4,269			5			(729		)	6,928
	Other income (expense)
	Loss on sale of receivables	—			(4		)	—			—			(4		)
	Other income (expense)	115			(71		)	—			(47		)	(3		)
		115			(75		)	—			(47		)	(7		)
	Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income from affiliated companies	245			235			(5		)	(47		)	428
	Interest expense —
External (net of interest capitalized)	—			5			100			—			105
Affiliated companies (net of interest income)	212			(81		)	(131		)	—			—
Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies	33			311			26			(47		)	323
Income tax expense	(39		)	58			—			—			19
Equity in net income (loss) from affiliated companies	217			—			249			(466		)	—
Net income (loss)	289			253			275			(513		)	304
Less: Net income attributable to noncontrolling interests	—			29			—			—			29
Net income (loss) attributable to Tenneco Inc.	$	289		$	224		$	275		$	(513	)	$	275
Comprehensive income (loss) attributable to Tenneco Inc.	$	277		$	210		$	275		$	(513	)	$	249
STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	For the Year Ended December 31, 2011
	Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
	Subsidiaries			Subsidiaries			(Parent			& Elims
							Company)
	(Millions)
Revenues
Net sales and operating revenues —
External	$	3,103		$	4,102		$	—		$	—		$	7,205
Affiliated companies	162			514			—			(676		)	—
	3,265			4,616			—			(676		)	7,205
Costs and expenses
Cost of sales (exclusive of depreciation and amortization shown below)	2,764			3,949			—			(676		)	6,037
Goodwill impairment charge	—			11			—			—			11
Engineering, research, and development	57			76			—			—			133
Selling, general, and administrative	144			281			3			—			428
Depreciation and amortization of other intangibles	74			133			—			—			207
	3,039			4,450			3			(676		)	6,816
Other income (expense)
Loss on sale of receivables	—			(5		)	—			—			(5		)
Other income (expense)	80			1			—			(86		)	(5		)
	80			(4		)	—			(86		)	(10		)
Earnings (loss) before interest expense, income taxes, noncontrolling interests, and equity in net income from affiliated companies	306			162			(3		)	(86		)	379
Interest expense —
External (net of interest capitalized)	(1		)	6			103			—			108
Affiliated companies (net of interest income)	211			(72		)	(139		)	—			—
Earnings (loss) before income taxes, noncontrolling interests, and equity in net income from affiliated companies	96			228			33			(86		)	271
Income tax expense	12			76			—			—			88
Equity in net income (loss) from affiliated companies	116			—			124			(240		)	—
Net income (loss)	200			152			157			(326		)	183
Less: Net income attributable to noncontrolling interests	—			26			—			—			26
Net income (loss) attributable to Tenneco Inc.	$	200		$	126		$	157		$	(326	)	$	157
Comprehensive income (loss) attributable to Tenneco Inc.	$	105		$	81		$	157		$	(326	)	$	17
BALANCE SHEET
	31-Dec-13
	Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
	Subsidiaries			Subsidiaries			(Parent			& Elims
							Company)
	(Millions)
ASSETS
Current assets:
Cash and cash equivalents	$	6		$	269		$	—		$	—		$	275
Restricted cash	—			5			—			—			5
Receivables, net	387			1,306			16			(649		)	1,060
Inventories	279			377			—			—			656
Deferred income taxes	87			—			7			(23		)	71
Prepayments and other	35			188			—			—			223
Total current assets	794			2,145			23			(672		)	2,290
Other assets:
Investment in affiliated companies	944			—			696			(1,640		)	—
Notes and advances receivable from affiliates	1,026			7,320			4,826			(13,172		)	—
Long-term receivables, net	12			2			—			—			14
Goodwill	22			47			—			—			69
Intangibles, net	13			17			—			—			30
Deferred income taxes	72			9			44			—			125
Pension Assets	—			—			—			—			—
Other	44			60			23			—			127
	2,133			7,455			5,589			(14,812		)	365
Plant, property, and equipment, at cost	1,173			2,325			—			—			3,498
Less — Accumulated depreciation and amortization	(807		)	(1,516		)	—			—			(2,323		)
	366			809			—			—			1,175
Total assets	$	3,293		$	10,409		$	5,612		$	(15,484	)	$	3,830
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities:
Short-term debt (including current maturities of long-term debt)
Short-term debt — non-affiliated	$	—		$	68		$	15		$	—		$	83
Short-term debt — affiliated	247			176			10			(433		)	—
Accounts payable	521			1,011			—			(173		)	1,359
Accrued taxes	9			31			—			—			40
Other	128			285			9			(66		)	356
Total current liabilities	905			1,571			34			(672		)	1,838
Long-term debt — non-affiliated	—			8			1,011			—			1,019
Long-term debt — affiliated	1,700			7,338			4,134			(13,172		)	—
Deferred income taxes	—			28			—			—			28
Postretirement benefits and other liabilities	357			92			—			4			453
Commitments and contingencies
Total liabilities	2,962			9,037			5,179			(13,840		)	3,338
Redeemable noncontrolling interests	—			20			—			—			20
Tenneco Inc. Shareholders’ equity	331			1,313			433			(1,644		)	433
Noncontrolling interests	—			39			—			—			39
Total equity	331			1,352			433			(1,644		)	472
Total liabilities, redeemable noncontrolling interests and equity	$	3,293		$	10,409		$	5,612		$	(15,484	)	$	3,830
BALANCE SHEET
	31-Dec-12
	Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
	Subsidiaries			Subsidiaries			(Parent			& Elims
							Company)
	(Millions)
ASSETS
Current assets:
Cash and cash equivalents	$	4		$	219		$	—		$	—		$	223
Receivables, net	341			1,268			30			(653		)	986
Inventories	278			389			—			—			667
Deferred income taxes	91			—			6			(25		)	72
Prepayments and other	28			148			—			—			176
Total current assets	742			2,024			36			(678		)	2,124
Other assets:
Investment in affiliated companies	551			—			717			(1,268		)	—
Notes and advances receivable from affiliates	957			4,495			4,594			(10,046		)	—
Long-term receivables, net	2			2			—			—			4
Goodwill	21			51			—			—			72
Intangibles, net	18			17			—			—			35
Deferred income taxes	55			1			60			—			116
Other	31			75			29			—			135
	1,635			4,641			5,400			(11,314		)	362
Plant, property, and equipment, at cost	1,098			2,267			—			—			3,365
Less — Accumulated depreciation and amortization	(763		)	(1,480		)	—			—			(2,243		)
	335			787			—			—			1,122
Total assets	$	2,712		$	7,452		$	5,436		$	(11,992	)	$	3,608
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities:
Short-term debt (including current maturities of long-term debt)
Short-term debt — non-affiliated	$	—		$	112		$	1		$	—		$	113
Short-term debt — affiliated	250			173			10			(433		)	—
Accounts payable	423			954			—			(191		)	1,186
Accrued taxes	16			34			—			—			50
Other	135			210			9			(54		)	300
Total current liabilities	824			1,483			20			(678		)	1,649
Long-term debt — non-affiliated	—			8			1,059			—			1,067
Long-term debt — affiliated	1,447			4,533			4,066			(10,046		)	—
Deferred income taxes	—			27			—			—			27
Postretirement benefits and other liabilities	438			118			—			3			559
Commitments and contingencies
Total liabilities	2,709			6,169			5,145			(10,721		)	3,302
Redeemable noncontrolling interests	—			15			—			—			15
Tenneco Inc. Shareholders’ equity	3			1,223			291			(1,271		)	246
Noncontrolling interests	—			45			—			—			45
Total equity	3			1,268			291			(1,271		)	291
Total liabilities, redeemable noncontrolling interests and equity	$	2,712		$	7,452		$	5,436		$	(11,992	)	$	3,608
STATEMENT OF CASH FLOWS
	Year Ended December 31, 2013
	Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
	Subsidiaries			Subsidiaries			(Parent			& Elims
							Company)
	(Millions)
Operating Activities
Net cash provided (used) by operating activities	$	270		$	185		$	48		$	—		$	503
Investing Activities
Proceeds from sale of assets	1			7			—			—			8
Cash payments for plant, property, and equipment	(102		)	(142		)	—			—			(244		)
Cash payments for software related intangible assets	(19		)	(6		)	—			—			(25		)
Changes in restricted cash	—			(5		)	—			—			(5		)
Net cash used by investing activities	(120		)	(146		)	—			—			(266		)
Financing Activities
Retirement of long-term debt	—			(2		)	(14		)	—			(16		)
Tax benefit from stock-based compensation	—			—			24			—			24
Purchase of common stock under the share repurchase program	—			—			(27		)	—			(27		)
Issuance of common stock	—			—			20			—			20
Increase in bank overdrafts	—			(6		)	—			—			(6		)
Net increase in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable	—			(43		)	21			—			(22		)
Net increase in short-term borrowings secured by accounts receivable	—			—			(40		)	—			(40		)
Intercompany dividends and net increase (decrease) in intercompany obligations	(148		)	180			(32		)	—			—
Purchase of noncontrolling equity interest	—			(69		)	—			—			(69		)
Distribution to noncontrolling interests partners	—			(39		)	—			—			(39		)
Net cash provided (used) by financing activities	(148		)	21			(48		)	—			(175		)
Effect of foreign exchange rate changes on cash and cash equivalents	—			(10		)	—			—			(10		)
Increase in cash and cash equivalents	2			50			—			—			52
Cash and cash equivalents, January 1	4			219			—			—			223
Cash and cash equivalents, December 31 (Note)	$	6		$	269		$	—		$	—		$	275
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, 2012
	Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
	Subsidiaries			Subsidiaries			(Parent			& Elims
							Company)
	(Millions)
Operating Activities
Net cash provided (used) by operating activities	$	385		$	206		$	(226	)	$	—		$	365
Investing Activities
Proceeds from sale of assets	—			3			—			—			3
Cash payments for plant, property, and equipment	(101		)	(155		)	—			—			(256		)
Cash payments for software related intangible assets	(6		)	(7		)	—			—			(13		)
Cash payments for net assets purchased	(7		)	—			—			—			(7		)
Net cash used by investing activities	(114		)	(159		)	—			—			(273		)
Financing Activities
Retirement of long-term debt	—			(1		)	(410		)	—			(411		)
Issuance of long-term debt	—			—			250			—			250
Debt issuance cost on long-term debt	—			—			(13		)	—			(13		)
Purchase of common stock under the share repurchase program	—			—			(18		)	—			(18		)
Issuance of common stock	—			—			5			—			5
Increase in bank overdrafts	—			5			—			—			5
Net increase in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable	—			48			19			—			67
Net increase in short-term borrowings secured by accounts receivable	—			—			50			—			50
Intercompany dividends and net increase (decrease) in intercompany obligations	(268		)	(75		)	343			—			—
Capital contribution from noncontrolling interest partner	—			5			—			—			5
Distribution to noncontrolling interests partners	—			(29		)	—			—			(29		)
Net cash provided (used) by financing activities	(268		)	(47		)	226			—			(89		)
Effect of foreign exchange rate changes on cash and cash equivalents	—			6			—			—			6
Increase (decrease) in cash and cash equivalents	3			6			—			—			9
Cash and cash equivalents, January 1	1			213			—			—			214
Cash and cash equivalents, December 31 (Note)	$	4		$	219		$	—		$	—		$	223
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, 2011
	Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
	Subsidiaries			Subsidiaries			(Parent			& Elims
							Company)
	(Millions)
Operating Activities
Net cash provided (used) by operating activities	$	401		$	83		$	(239	)	$	—		$	245
Investing Activities
Proceeds from sale of assets	3			1			—			—			4
Cash payments for plant, property, and equipment	(69		)	(144		)	—			—			(213		)
Cash payments for software related intangible assets	(4		)	(11		)	—			—			(15		)
Cash payments for net assets purchased	—			—			—			—			—
Net cash used by investing activities	(70		)	(154		)	—			—			(224		)
Financing Activities
Retirement of long-term debt	—			(1		)	(23		)	—			(24		)
Issuance of long-term debt	—			5			—			—			5
Debt issuance cost on long-term debt	—			—			(1		)	—			(1		)
Purchase of common stock under the share repurchase program	—			—			(16		)	—			(16		)
Increase in bank overdrafts	—			3			—			—			3
Net decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt	—			6			24			—			30
Net increase in short-term borrowings secured by accounts receivable	—			—			—			—			—
Intercompany dividends and net increase (decrease) in intercompany obligations	(330		)	75			255			—			—
Capital contribution from noncontrolling interest partner	—			1			—			—			1
Purchase of noncontrolling equity interest	—			(4		)	—			—			(4		)
Distribution to noncontrolling interests partners	—			(20		)	—			—			(20		)
Net cash provided (used) by financing activities	(330		)	65			239			—			(26		)
Effect of foreign exchange rate changes on cash and cash equivalents	—			(14		)	—			—			(14		)
Increase (decrease) in cash and cash equivalents	1			(20		)	—			—			(19		)
Cash and cash equivalents, January 1	—			233			—			—			233
Cash and cash equivalents, December 31 (Note)	$	1		$	213		$	—		$	—		$	214
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_Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Data (Unaudited)	'
	Quarterly Financial Data (Unaudited)
	Quarter	Net Sales		Cost of Sales		Earnings Before		Net Income
		and		(Excluding		Interest Expense,		Attributable
		Operating		Depreciation and		Income Taxes		to Tenneco
		Revenues		Amortization)		and Noncontrolling		Inc.
						Interests
		(Millions)
	2013
	1st	$	1,903	$	1,604	$	93	$	54
	2nd	2,067		1,736		141		63
	3rd	1,963		1,691		72		12
	4th	2,031		1,703		118		54
		$	7,964	$	6,734	$	424	$	183
	2012
	1st	$	1,912	$	1,607	$	96	$	30
	2nd	1,920		1,595		137		87
	3rd	1,778		1,494		111		125
	4th	1,753		1,474		84		33
		$	7,363	$	6,170	$	428	$	275
	Quarter	Basic		Diluted
		Earnings		Earnings
		per Share of		per Share of
		Common Stock		Common Stock
	2013
	1st	$	0.9	$	0.88
	2nd	1.04		1.02
	3rd	0.19		0.19
	4th	0.9		0.88
	Full Year	3.03		2.97
	2012
	1st	$	0.5	$	0.49
	2nd	1.45		1.42
	3rd	2.09		2.05
	4th	0.55		0.54
	Full Year	4.58		4.5
	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_ACCOU

VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Dec. 31, 2013
VALUATION AND QUALIFYING ACCOUNTS	'
	SCHEDULE II
	TENNECO INC. AND CONSOLIDATED SUBSIDIARIES
	SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
	Column A	Column B		Column C		Column D	Column E
				Additions
	Description	Balance		Charged	Charged	Deductions	Balance
		at		to	to		at End of
		Beginning		Costs and	Other		Year
		of Year		Expenses	Accounts
		(Millions)
	Allowance for Doubtful Accounts and Notes Receivable Deducted from Assets to Which it Applies:
	Year Ended December 31, 2013	$	14	1	—	1	$	14
	Year Ended December 31, 2012	$	17	3	—	6	$	14
	Year Ended December 31, 2011	$	20	1	—	4	$	17

Summary_of_Accounting_Policies1

Summary of Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
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, pension and postretirement benefit plans, income taxes, and contingencies.
Redeemable Noncontrolling Interests	'
	Redeemable Noncontrolling Interests
	We have noncontrolling interests in four 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 reported income tax expenses of $122 million, $19 million and $88 million in the years ended 2013, 2012 and 2011, respectively. The tax expense recorded in 2013 includes a net tax benefit of $25 million primarily for tax adjustments related to recognizing a U.S. tax benefit for foreign taxes and changes to prior year estimates.
	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.
	In 2012, we reversed the tax valuation allowance that we recorded in 2008 against our net deferred tax assets in the U.S. based on operating improvements we had made, the outlook for light and commercial vehicle production in the U.S. and the positive impact this should have on our U.S. operations. The net income impact of the tax valuation allowance release in the U.S. was a tax benefit of approximately $81 million.
	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 Spain and certain other 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 $1,835 million, $1,660 million and $1,678 million in 2013, 2012 and 2011, 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 $144 million for 2013, $126 million for 2012, and $133 million for 2011, 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 Translation
	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 transactions which hedge purchase commitments and for those intercompany balances which are designated as long-term investments.
Risk Management Activities	'
	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, 2013 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 July 2013, the Financial Accounting Standards Board (“FASB”) issued an amendment to provide explicit guidance on financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, similar tax loss, or tax credit carryforward exists. The objective of the amendment is to eliminate the diversity in practice in the presentation of unrecognized tax benefits in those instances. This amendment is effective for reporting periods beginning after December 15, 2013. We adopted this amendment on January 1, 2014. Adoption of the amendment is not expected to have a material impact on our consolidated financial statements.
	In April 2013, the FASB issued an amendment to clarify when an entity should apply the liquidation basis of accounting and to provide principles for the measurement of assets and liabilities under the liquidation basis of accounting, as well as any required disclosures. The amendment applies to all entities that issue financial statements that are presented in conformity with U.S. GAAP except investment companies that are regulated under the Investment Company Act of 1940. This amendment is effective for reporting periods beginning after December 15, 2013. Adoption of the amendment will not have any impact on our consolidated financial statements.
	In February 2013, the FASB issued an amendment to resolve the diversity in practice about whether Subtopic 810-10, Consolidation-Overall, or Subtopic 830-30, Foreign Currency Matters-Translation of Financial Statements, applies to the release of the cumulative translation adjustment into net income when a parent either sells a part of all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business (other than a sale of in substance real state or conveyance of oil and gas mineral rights) within a foreign entity. In addition, the amendments resolve the diversity in practice for the treatment of business combinations achieved in stages (sometimes also referred to as step acquisitions) involving a foreign entity. This amendment is effective for reporting periods beginning after December 15, 2013. Adoption of the amendment will not have any impact on our consolidated financial statements.
	In February 2013, the FASB issued an amendment to the accounting guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date, except for obligations addressed within existing guidance in U.S. GAAP. The guidance requires an entity to measure those obligations as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement amount its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance in this amendment also requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations. This amendment is effective for reporting periods beginning after December 15, 2013. Adoption of the amendment will not have any impact on our consolidated financial statements.
	In February 2013, the FASB issued an amendment to the accounting guidance to improve the transparency of reporting amounts reclassified out of other comprehensive income. Other comprehensive income (loss) includes gains and losses that are initially excluded from net income for an accounting period. Those gains and losses are later reclassified out of accumulated other comprehensive income into net income. This amendment does not change the current requirements for reporting net income or other comprehensive income in the financial statements. All of the information that this amendment requires already is required to be disclosed elsewhere in the financial statements under U.S. GAAP. This new amendment requires presentation either on the face of the statement where net income is presented or in the notes, the effects of significant amounts reclassified out of accumulated other comprehensive income, and that the reclassified amounts be cross-referenced to the other disclosures required under U.S. GAAP. This amendment was effective for reporting periods beginning after December 15, 2012. This amendment has not had a material impact on our condensed consolidated financial statements.
	In December 2011, the FASB issued an amendment relating to the disclosure about offsetting assets and liabilities. This amendment requires disclosure to provide information to help reconcile differences in the offsetting requirements under U.S. GAAP and International Financial Reporting Standards ("IFRS"). A reporting entity will be required to disclose (1) the gross amount of recognized assets and liabilities, (2) the amounts offset to determine the net amounts presented in the statement of financial position, (3) the net amounts presented in the statement of financial position, (4) the amounts subject to an enforceable master netting arrangement or similar agreement not otherwise included in (2), and (5) the net amount after deducting the amounts in (4) and (3). This amendment was effective for a reporting entity’s interim and annual periods beginning on or after January 1, 2013. Following issuance of this amendment, considerable concerns were raised regarding the broad scope of this amendment. In response to the concerns, in January, 2013, the FASB issued a new amendment revising the scope of the disclosure requirements to apply only to derivatives, repurchase agreements and reverse repurchase agreements, and security borrowing and lending transactions subject to a master netting arrangement or similar agreement. As a result of this new amendment the disclosure about offsetting assets and liabilities did not have any impact to our consolidated 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 Argentina, China, South Africa, and Thailand.

Summary_of_Accounting_Policies2

Summary of Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Redeemable Noncontrolling Interests	'
	The following is a rollforward of activity in our redeemable noncontrolling interests for the years ending December 31, 2013, 2012 and 2011, respectively:
		2013			2012			2011
		(Millions)
	Balance January 1	$	15		$	12		$	12
	Net income attributable to redeemable noncontrolling interests	14			9			7
	Sale of 25 percent equity interest to Tenneco Inc	—			—			(2		)
	Capital Contributions	—			2			1
	Dividends declared	(9		)	(8		)	(6		)
	Balance December 31	$	20		$	15		$	12
Inventories by Major Classification	'
	At December 31, 2013 and 2012, inventory by major classification was as follows:
		2013			2012
		(Millions)
	Finished goods	$	267		$	273
	Work in process	202			207
	Raw materials	130			133
	Materials and supplies	57			54
		$	656		$	667
Changes in Net Carrying Amount of Goodwill	'
	The changes in the net carrying amount of goodwill for the years ended December 31, 2013 and 2012 were as follows:
		Clean Air Division									Ride Performance Division
		North			Europe, South America & India			Asia			North			Europe, South America & India			Asia		Total
		America						Pacific			America						Pacific
	(Millions)
	Balance at December 31, 2011	$	15		$	13		$	—		$	10		$	36		$	—	$	74
	Translation Adjustment	(1		)	—			—			—			(1		)	—		(2		)
	Balance at December 31, 2012	14			14			—			10			34			—		72
	Translation Adjustment	—			—			—			—			(3		)	—		(3		)
	Balance at December 31, 2013	14			14			—			10			31			—		69
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:
		31-Dec-13						31-Dec-12
		Gross Carrying			Accumulated			Gross Carrying			Accumulated
		Value			Amortization			Value			Amortization
		(Millions)						(Millions)
	Customer contract	$	8		$	(4	)	$	8		$	(3	)
	Patents	3			(2		)	3			(1		)
	Technology rights	26			(12		)	26			(7		)
	Other	11			(1		)	11			(1		)
	Total	$	48		$	(19	)	$	48		$	(12	)
Property, Plant and Equipment	'
	At December 31, 2013 and 2012, plant, property, and equipment, at cost, by major category were as follows:
		2013			2012
		(Millions)
	Land, buildings, and improvements	$	579		$	563
	Machinery and equipment	2,673			2,574
	Other, including construction in progress	246			228
		$	3,498		$	3,365

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Summary of Earnings Per Share of Common Stock	'
	Earnings per share of common stock outstanding were computed as follows:
		Year Ended December 31,
		2013		2012		2011
		(Millions Except Share and Per Share Amounts)
	Basic earnings per share —
	Net income attributable to Tenneco Inc.	$	183	$	275	$	157
	Average shares of common stock outstanding	60,474,492		59,985,677		59,884,139
	Earnings per average share of common stock	$	3.03	$	4.58	$	2.62
	Diluted earnings per share —
	Net income attributable to Tenneco Inc.	$	183	$	275	$	157
	Average shares of common stock outstanding	60,474,492		59,985,677		59,884,139
	Effect of dilutive securities:
	Restricted stock	205,020		140,609		168,539
	Stock options	914,550		957,224		1,467,482
	Average shares of common stock outstanding including dilutive securities	61,594,062		61,083,510		61,520,160
	Earnings per average share of common stock	$	2.97	$	4.5	$	2.55

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Transfers to Noncontrolling Interest	'
	The table below summaries the net income attributable to Tenneco Inc. and transfers to the noncontrolling interest:
		Year Ended December 31,
		2013			2012		2011
		(Millions)
	Net income attributable to Tenneco Inc.	$	183		$	275	$	157
	Decrease in equity for purchase of noncontrolling equity interest	(68		)	—		(2		)
	Net income attributable to Tenneco Inc. shareholders less purchase of noncontrolling equity interest	115			275		155

Restructuring_and_Other_Charge1

Restructuring and Other Charges (Tables)	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Roll Forward of Restructuring Reserve	'
	Amounts related to activities that are part of our restructuring plans are as follows:
		December 31,		2013	2013		Impact of Exchange Rates	December 31,
		2012		Expenses	Cash			2013
		Restructuring			Payments			Restructuring
		Reserve						Reserve
		(Millions)
	Employee Severance, Termination Benefits and Other Related Costs	$	—	75	(32	)	1	$	44

LongTerm_Debt_ShortTerm_Debt_a1

Long-Term Debt, Short-Term Debt, and Financing Arrangements (Tables)	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Summary of Long-term Debt Obligations	'
	Long-Term Debt
	A summary of our long-term debt obligations at December 31, 2013 and 2012, is set forth in the following table:
		2013				2012
		(Millions)
	Tenneco Inc. —
	Revolver borrowings due 2017, average effective interest rate 2.7% in 2013 and 1.2% in 2012	$	58			$	92
	Senior Term Loan due 2014 through 2017, average effective interest rate 2.7% in 2013 and 3.0% in 2012	228				241
	7 3/4% Senior Notes due 2018	225				225
	6 7/8% Senior Notes due 2020	500				500
	Debentures due 2014 through 2026, average effective interest rate 7.5 in 2013 and 8.4% in 2012	1				1
	Customer Notes due 2013, average effective interest rate 8.0% in 2013 and 2012	—				1
	Other subsidiaries —
	Notes due 2014 through 2026, average effective interest rate 1.3% in both 2013 and 2012	9				10
		1,021				1,070
	Less — maturities classified as current	2				3
	Total long-term debt	$	1,019			$	1,067
Summary of Short-term Debt Obligations	'
	Information regarding our short-term debt as of and for the years ended December 31, 2013 and 2012 is as follows:
		2013				2012
		(Millions)
	Maturities classified as current	$	2			$	3
	Short-term borrowings	81				110
	Total short-term debt	$	83			$	113
		Notes Payable(a)
		2013				2012
		(Dollars in Millions)
	Outstanding borrowings at end of year	$	81			$	110
	Weighted average interest rate on outstanding borrowings at end of year(b)	4.4		%		5.3		%
	Approximate maximum month-end outstanding borrowings during year	$	177			$	156
	Approximate average month-end outstanding borrowings during year	$	116			$	123
	Weighted average interest rate on approximate average month-end outstanding borrowings during year(b)	4.7		%		5.5		%
	(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, 2013
		Term		Commitments				Borrowings			Letters of			Available
											Credit(b)
		(Millions)
	Tenneco Inc. revolving credit agreement	2017		850				58			37			755
	Tenneco Inc. tranche A term facility	2017		228				228			—			—
	Subsidiaries’ credit agreements	2014-2026		110				90			—			20
				$	1,188			$	376		$	37		$	775
	(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 2013, are as follows:
		Quarter Ended
		March 31,						June 30,					September 30,			December 31,
		2013						2013					2013			2013
		Req.			Act.			Req.		Act.			Req.		Act.	Req.	Act.
	Leverage Ratio (maximum)	3.5			1.98			3.5		1.79			3.5		1.86	3.5	1.39
	Interest Coverage Ratio (minimum)	2.55			8.39			2.55		8.74			2.55		9.09	2.55	9.89
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); (ii) with the net cash proceeds of the incremental facilities (as defined in the senior credit facility agreement); (iii) with the net cash 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 March 22, 2012; 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) on a pro forma consolidated leverage ratio after giving effect to such purchase, cancellation or redemption):
	Pro forma Consolidated	Aggregate Senior
	Leverage Ratio	Note Maximum Amount
		(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, 2013

Text Block [Abstract]

'

Carrying and Estimated Fair Value

'

The carrying and estimated fair values of our financial instruments by class at December 31, 2013 and 2012 were as follows:

31-Dec-13

31-Dec-12

Carrying

Fair

Carrying

Fair

Amount

Value

Amount

Value

(Millions)

Long-term debt (including current maturities)

$

1,021

$

1,089

$

1,070

$

1,136

Instruments with off-balance sheet risk:

Foreign exchange forward contracts:

Asset derivative contracts

—

—

1

1

Foreign Exchange Forward Contracts Fair Value on Gross Basis

'

The fair value of our foreign exchange forward contracts, presented on a gross basis by derivative contract at December 31, 2013 and 2012, respectively, was as follows:

Fair Value of Derivative Instruments

31-Dec-13

31-Dec-12

Asset

Liability

Total

Asset

Liability

Total

Derivatives

Derivatives

Derivatives

Derivatives

(Millions)

Foreign exchange forward contracts

$

—

$

—

$

—

$

1

$

—

$

1

Fair Value of Financial Assets on Recurring Basis

'

The fair value of our recurring financial assets and liabilities at December 31, 2013 and 2012, respectively, are as follows:

31-Dec-13

31-Dec-12

Level 1

Level 2

Level 3

Level 1

Level 2

Level 3

(Millions)

Financial Assets:

Foreign exchange contracts

$

—

$

—

$

—

n/a

$

1

n/a

Fair Value Hierarchy

'

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.

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, 2013 (all of which mature in 2014):

Notional Amount

in Foreign Currency

(Millions)

Australian dollars

—Purchase

3

British pounds

—Purchase

4

European euro

—Sell

(16

)

Japanese yen

—Purchase

135

—Sell

(842

)

Polish zloty

—Purchase

33

South African rand

—Purchase

144

U.S. dollars

—Purchase

15

—Sell

(15

)

Other

—Sell

(2

)

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Text Block [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,
		2013			2012			2011
		(Millions)
	U.S. income before income taxes	$	150		$	166		$	55
	Foreign income before income taxes	194			157			216
	Income before income taxes and noncontrolling interests	$	344		$	323		$	271
Comparative Analysis of Components of Income Tax Expense	'
	Following is a comparative analysis of the components of income tax expense:
		Year Ended December 31,
		2013			2012			2011
		(Millions)
	Current —
	U.S. federal	$	25		$	—		$	—
	State and local	4			4			2
	Foreign	81			89			91
		110			93			93
	Deferred —
	U.S. federal	(4		)	(25		)	—
	State and local	2			(20		)	—
	Foreign	14			(29		)	(5		)
		12			(74		)	(5		)
	Income tax expense	$	122		$	19		$	88
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,
		2013			2012			2011
		(Millions)
	Income tax expense computed at the statutory U.S. federal income tax rate	$	120		$	113		$	95
	Increases (reductions) in income tax expense resulting from:
	Foreign income taxed at different rates	(21		)	(21		)	(14		)
	Taxes on repatriation of dividends	9			8			6
	Remeasurement of estimated tax on unremitted earnings	(17		)	—			—
	State and local taxes on income, net of U.S. federal income tax benefit	6			4			2
	Changes in valuation allowance for tax loss carryforwards and credits	27			(91		)	(11		)
	Foreign tax holidays	(5		)	(5		)	(4		)
	Investment and R&D tax credits	(8		)	(1		)	(4		)
	Foreign earnings subject to U.S. federal income tax	5			23			6
	Adjustment of prior years taxes	(1		)	(5		)	—
	Impact of tax law changes	(3		)	(1		)	—
	Tax contingencies	6			(6		)	3
	Goodwill impairment	—			—			3
	Other	4			1			6
	Income tax expense	$	122		$	19		$	88
Components of Our Net Deferred Tax Assets	'
	The components of our net deferred tax assets were as follows:
		Year Ended December 31,
		2013			2012
		(Millions)
	Deferred tax assets —
	Tax loss carryforwards:
	U.S. federal	$	—		$	—
	State	23			23
	Foreign	78			63
	Tax credit benefits	88			51
	Postretirement benefits other than pensions	43			50
	Pensions	36			87
	Bad debts	1			1
	Sales allowances	6			6
	Payroll and other accruals	132			119
	Valuation allowance	(135		)	(118		)
	Total deferred tax assets	272			282
	Deferred tax liabilities —
	Tax over book depreciation	56			57
	Other	51			70
	Total deferred tax liabilities	107			127
	Net deferred tax assets	$	165		$	155
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,
		2013			2012
		(Millions)
	Balance Sheet:
	Current portion — deferred tax asset	$	71		$	72
	Non-current portion — deferred tax asset	125			116
	Current portion — deferred tax liability shown in other current liabilities	(3		)	(6		)
	Non-current portion — deferred tax liability	(28		)	(27		)
	Net deferred tax assets	$	165		$	155
Reconciliation of our Uncertain Tax Positions	'
	A reconciliation of our uncertain tax positions is as follows:
		2013			2012			2011
		(Millions)
	Uncertain tax positions —
	Balance January 1	$	107		$	119		$	111
	Gross increases in tax positions in current period	15			13			19
	Gross increases in tax positions in prior period	—			1			3
	Gross decreases in tax positions in prior period	(1		)	(12		)	(10		)
	Gross decreases — settlements	—			(5		)	—
	Gross decreases — statute of limitations expired	(6		)	(9		)	(4		)
	Balance December 31	$	115		$	107		$	119
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, 2013, our tax years open to examination in primary jurisdictions are as follows:
		Open To Tax
		Year
	United States	2000
	China	2003
	Spain	2003
	Canada	2007
	Brazil	2008
	Mexico	2008
	Belgium	2011
	Germany	2011
	United Kingdom	2012

Common_Stock_Tables

Common Stock (Tables)	12 Months Ended
	Dec. 31, 2013
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.
		2013				2012				2011
	Stock Options Granted:
	Weighted average grant date fair value, per share	$	19.84			$	17.35			$	26.13
	Weighted average assumptions used:
	Expected volatility	66.4		%		73.5		%		70.1		%
	Expected lives	4.9				4.7				4.8
	Risk-free interest rates	0.7		%		0.8		%		1.8		%
	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, 2013
		Shares			Weighted Avg.				Weighted Avg.		Aggregate
		Under			Exercise				Remaining		Intrinsic
		Option			Prices				Life in Years		Value
											(Millions)
	Outstanding Stock Options:
	Outstanding, January 1, 2013	2,447,475			$	20.14			4.1		$	29
	Granted	311,539			36.29
	Canceled	(7,225	)		11.73
	Forfeited	(14,920	)		14.59
	Exercised	(82,622	)		19.96						1
	Outstanding, March 31, 2013	2,654,247			$	22.12			4.3		$	41
	Granted	388			38.9
	Forfeited	(450	)		21.81
	Exercised	(393,442	)		22.53						7
	Outstanding, June 30, 2013	2,260,743			$	22.06			4.7		$	44
	Granted	1,182			35.41
	Forfeited	(283	)		8.68
	Exercised	(147,753	)		15.42						—
	Outstanding, September 30, 2013	2,113,889			$	22.52			4.6		$	56
	Granted	—			—
	Canceled	—			—
	Forfeited	—			—
	Exercised	(130,316	)		16.23						5
	Outstanding, December 31, 2013	1,983,573			$	22.93			4.5		$	62
Nonvested Restricted Shares	'
	The following table reflects the status for all nonvested restricted shares for the period indicated:
		Year Ended December 31, 2013
		Shares			Weighted Avg.
					Grant Date
					Fair Value
	Nonvested Restricted Shares
	Nonvested balance at January 1, 2013	348,918			$	31.69
	Granted	204,731			36.28
	Vested	(154,160	)		29.54
	Forfeited	—			—
	Nonvested balance at March 31, 2013	399,489			$	34.88
	Granted	226			38.9
	Vested	(15,289	)		35.4
	Forfeited	—			—
	Nonvested balance at June 30, 2013	384,426			$	34.86
	Granted	2,223			46.91
	Vested	(16,255	)		35.58
	Forfeited	—			—
	Nonvested balance at September 30, 2013	370,394			$	34.9
	Granted	—			—
	Vested	(2,126	)		34.93
	Forfeited	—			—
	Nonvested balance at December 31, 2012	368,268			$	34.9

Pension_Plans_Postretirement_a1

Pension Plans, Postretirement and Other Employee Benefits (Tables)	12 Months Ended
	Dec. 31, 2013
Pension Plan Assets Invested	'
	Pension plan assets were invested in the following classes of securities:
		Percentage of Fair Market Value
		31-Dec-13						31-Dec-12
		US			Foreign			US			Foreign
	Equity Securities	71	%		62	%		70	%		59	%
	Debt Securities	29	%		31	%		30	%		33	%
	Real Estate	—			2	%		—			2	%
	Other	—			5	%		—	%		6	%
Plan Assets using Fair Value Hierarchy	'
	The following table presents our plan assets using the fair value hierarchy as of December 31, 2013 and 2012, 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, 2013
		US											Foreign
	Asset Category	Level 1				Level 2				Level 3			Level 1				Level 2			Level 3
		(Millions)
	Equity securities:
	U.S. large cap	$	41			$	143			$	—		$	31			$	21		$	—
	U.S. mid cap	—				—				—			4				4			—
	U.S. Small Cap	—				27				—			—				—			—
	Non-U.S. large cap	—				—				—			57				71			—
	Non-U.S. mid cap	—				27				—			20				19			—
	Non-U.S. small cap	—				—				—			1				7			—
	Emerging markets	—				8				—			—				4			—
	Debt securities:
	U.S. corporate bonds	—				5				—			—				4			—
	U.S. other fixed income	—				96				—			—				—			—
	Non-U.S. treasuries/government bonds	—				—				—			35				25			—
	Non-U.S. corporate bonds	—				—				—			18				18			—
	Non-U.S. mortgage backed securities	—				—				—			—				4			—
	Non-U.S. municipal obligations	—				—				—			1				—			—
	Non-U.S. asset backed securities	—				—				—			—				3			—
	Non-U.S. other fixed income	—				—				—			1				2			—
	Real Estate:
	Non-U.S. real estate	—				—				—			1				5			—
	Other:
	Insurance contracts	—				—				—			—				9			8
	Cash held in bank accounts	—				—				—			6				—			—
	Total	$	41			$	306			$	—		$	175			$	196		$	8
		Fair Value Level as of December 31, 2012
		US											Foreign
	Asset Category	Level 1				Level 2				Level 3			Level 1				Level 2			Level 3
		(Millions)
	Equity securities:
	U.S. large cap	$	29			$	117			$	—		$	26			$	15		$	—
	U.S. mid cap	—				—				—			2				5			—
	U.S. Small Cap	—				20				—			—				—			—
	Non-U.S. large cap	—				—				—			48				63			—
	Non-U.S. mid cap	—				20				—			13				16			—
	Non-U.S. small cap	—				—				—			1				4			—
	Emerging markets	—				7				—			2				1			—
	Debt securities:
	U.S. treasuries/government bonds	—				—				—			—				—			—
	U.S. corporate bonds	—				4				—			—				—			—
	U.S. mortgage backed securities	—				—				—			—				—			—
	U.S. asset backed securities	—				—				—			—				—			—
	U.S. other fixed income	—				78				—			—				—			—
	Non-U.S. treasuries/government bonds	—				—				—			36				24			—
	Non-U.S. corporate bonds	—				—				—			18				24			—
	Non-U.S. mortgage backed securities	—				—				—			—				3			—
	Non-U.S. municipal obligations	—				—				—			1				—			—
	Non-U.S. asset backed securities	—				—				—			—				3			—
	Non-U.S. other fixed income	—				—				—			1				—			—
	Real Estate:
	Non-U.S. real estate	—				—				—			1				5			—
	Other:
	Insurance contracts	—				—				—			—				8			8
	Cash held in bank accounts	—				—				—			4				—			—
	Total	$	29			$	246			$	—		$	153			$	171		$	8
Changes in Fair Value of Level 3 Assets	'
	The table below summarizes the changes in the fair value of the Level 3 assets:
		31-Dec-13								31-Dec-12
		Level 3 Assets								Level 3 Assets
		US				Foreign				US			Foreign
		(Millions)								(Millions)
	Balance at December 31 of the previous year	$	—			$	8			$	—		$	6
	Actual return on plan assets:
	Relating to assets still held at the reporting date	—				—				—			2
	Ending Balance at December 31	$	—			$	8			$	—		$	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
									Total Assets
		(Millions)
	2013:00:00
	Tenneco Stock	1			$	41			5.6	%
	2012:00:00
	Tenneco Stock	1			$	29			4.7	%
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
		2013								2012							2013			2012
		US				Foreign				US			Foreign				US			US
		(Millions)
	Change in benefit obligation:
	Benefit obligation at December 31 of the previous year	$	461			$	431			$	414		$	370			$	131		$	140
	Currency rate conversion	—				(2		)		—			13				—			—
	Settlement	—				(1		)		—			(4		)		—			—
	Curtailment	—				(1		)
	Service cost	1				9				1			7				—			—
	Interest cost	19				17				20			18				5			6
	Administrative expenses/taxes paid	—				(2		)		—			(1		)		—			—
	Plan amendments	—				1				—			—				—			—
	Actuarial (gain)/loss	(41		)		6				44			42				(16		)	(6		)
	Benefits paid	(19		)		(18		)		(18		)	(16		)		(8		)	(9		)
	Participants’ contributions	—				2				—			2				—			—
	Benefit obligation at December 31	$	421			$	442			$	461		$	431			$	112		$	131
	Change in plan assets:
	Fair value at December 31 of the previous year	$	275			$	332			$	239		$	290			$	—		$	—
	Currency rate conversion	—				(3		)		—			11				—			—
	Settlement	—				(1		)		—			(4		)		—			—
	Actual return on plan assets	60				43				28			27				—			—
	Administrative expenses/taxes paid	—				(2		)		—			—				—			—
	Employer contributions	31				26				26			22				8			10
	Prescription drug subsidy received	—				—				—			—				—			(1		)
	Participants’ contributions	—				2				—			2				—			—
	Benefits paid	(19		)		(18		)		(18		)	(16		)		(8		)	(9		)
	Fair value at December 31	$	347			$	379			$	275		$	332			$	—		$	—
	Development of net amount recognized:
	Unfunded status at December 31	$	(74	)		$	(62	)		$	(186	)	$	(99	)		$	(112	)	$	(131	)
	Unrecognized cost:
	Actuarial loss	190				137				278			168				32			52
	Prior service cost/(credit)	1				7				1			8				(16		)	(22		)
	Net amount recognized at December 31	$	117			$	82			$	93		$	77			$	(96	)	$	(101	)
	Amounts recognized in the balance sheets as of December 31
	Noncurrent assets	—				11				—			—				—			—
	Current liabilities	(6		)		(2		)		(3		)	(2		)		(8		)	(8		)
	Noncurrent liabilities	(68		)		(71		)		(183		)	(97		)		(104		)	(123		)
	Net amount recognized	$	(74	)		$	(62	)		$	(186	)	$	(99	)		$	(112	)	$	(131	)
Components of Net Periodic Benefit Cost	'
	Net periodic pension costs for the years 2013, 2012 and 2011, consist of the following components:
		2013								2012							2011
		US				Foreign				US			Foreign				US			Foreign
		(Millions)
	Service cost — benefits earned during the year	$	1			$	9			$	1		$	7			$	1		$	6
	Interest cost	19				17				20			18				20			19
	Expected return on plan assets	(22		)		(20		)		(22		)	(20		)		(23		)	(20		)
	Curtailment loss	—				—				—			—				—			—
	Settlement loss	—				1				—			1				—			1
	Net amortization:
	Actuarial loss	9				10				7			7				4			5
	Prior service cost	—				1				—			2				—			2
	Net pension costs	$	7			$	18			$	6		$	15			$	2		$	13
	Net periodic postretirement benefit cost for the years 2013, 2012, and 2011, consists of the following components:
		2013				2012				2011
		(Millions)
	Service cost — benefits earned during the year	$	—			$	1			$	1
	Interest on accumulated postretirement benefit obligation	5				6				7
	Net amortization:
	Actuarial loss	4				5				4
	Prior service credit	(6		)		(6		)		(6		)
	Net periodic postretirement benefit cost	$	3			$	6			$	6
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:
		2013								2012
		US				Foreign				US			Foreign
		(Millions)
	Net actuarial loss	$	190			$	137			$	278		$	168
	Prior service cost	1				7				1			8
		$	191			$	144			$	279		$	176
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, 2013 and 2012 include the following components:
		Year Ended December 31,
		2013											2012
		Before-Tax				Tax				Net-of-Tax			Before-Tax				Tax			Net-of-Tax
		Amount				Benefit				Amount			Amount				Benefit			Amount
		(Millions)
	Defined benefit pension and postretirement plans:
	Change in total actuarial loss	$	113			$	(41	)		$	72		$	(66	)		$	22		$	(44	)
	Amortization of prior service cost included in net periodic pension and postretirement cost	(5		)		2				(3		)	(4		)		2			(2		)
	Amortization of actuarial loss included in net periodic pension and postretirement cost	23				(7		)		16			20				(6		)	14
	Other comprehensive income — pension benefits	$	131			$	(46	)		$	85		$	(50	)		$	18		$	(32	)
Components of Net Periodic Benefit Cost	'
	In 2014, we expect to recognize the following amounts, which are currently reflected in accumulated other comprehensive loss, as components of net periodic benefit cost:
		2014
		(Millions)
	Net actuarial loss	$	2
	Prior service credit	(6		)
		$	(4	)
	In 2014, we expect to recognize the following amounts, which are currently reflected in accumulated other comprehensive loss, as components of net periodic benefit cost:
		2014
		US				Foreign
		(Millions)
	Net actuarial loss	$	7			$	7
	Prior service cost	—				1
		$	7			$	8
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, 2013 and 2012 were as follows:
		31-Dec-13								31-Dec-12
		US				Foreign				US			Foreign
		(Millions)
	Projected benefit obligation	$	421			$	289			$	461		$	400
	Accumulated benefit obligation	421				286				461			389
	Fair value of plan assets	347				218				275			301
Estimated Pension Plan Benefit Payments	'
	The following estimated benefit payments are payable from the pension plans to participants:
	Year	US				Foreign
		(Millions)
	2014	$	24			$	17
	2015	21				17
	2016	21				19
	2017	28				18
	2018	22				19
	2019-2022	131				140
Assumptions used in accounting for Pension Plans	'
	The following assumptions were used in the accounting for the pension plans for the years of 2013, 2012, and 2011:
		2013						2012
		US			Foreign			US			Foreign
	Weighted-average assumptions used to determine benefit obligations
	Discount rate	4.8	%		4.3	%		4.1	%		4.2	%
	Rate of compensation increase	N/A			3.3	%		N/A			3.4	%
		2013						2012					2011
		US			Foreign			US			Foreign		US			Foreign
	Weighted-average assumptions used to determine net periodic benefit cost
	Discount rate	4.1	%		4.2	%		4.8	%		4.9	%	5.6	%		5.4	%
	Expected long-term return on plan assets	7.8	%		6.2	%		8.3	%		6.3	%	8.3	%		6.4	%
	Rate of compensation increase	N/A			3.4	%		N/A			3.5	%	N/A			3.5	%
Estimated Postretirement Benefit Payments	'
	The following estimated postretirement benefit payments are payable from the plan to participants:
	Year	Postretirement
		Benefits
		(Millions)
	2014	$	8
	2015	8
	2016	8
	2017	8
	2018	8
	2019-2022	38
Postretirement Cost	'
	The following assumptions were used in the accounting for postretirement cost for the years of 2013, 2012 and 2011:
		2013			2012
	Weighted-average assumptions used to determine benefit obligations
	Discount rate	4.8	%		4.1	%
	Rate of compensation increase	N/A			N/A
		2013			2012			2011
	Weighted-average assumptions used to determine net periodic benefit cost
	Discount rate	4.1	%		4.8	%		5.6	%
	Rate of compensation increase	N/A			N/A			N/A

Segment_and_Geographic_Area_In1

Segment and Geographic Area Information (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Information	'
	Segment results for 2013, 2012 and 2011 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
		America							Pacific		America					Pacific
		(Millions)
	At December 31, 2013, and for the Year Ended
	Revenues from external customers	$	2,659		$	1,933			$	852	$	1,255	$	1,046		$	219		$	—		$	—		$	7,964
	Intersegment revenues	7			112				1		10		41			32			—			(203		)	—
	EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	229			57				84		124		(7		)	22			(85		)	—			424
	Total assets	1,030			827				544		628		552			213			—			36			3,830
	At December 31, 2012, and for the Year Ended
	Revenues from external customers	2,506			1,726				694		1,213		1,041			183			—			—			7,363
	Intersegment revenues	6			101				1		10		53			30			—			(201		)	—
	EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	202			54				71		122		41			5			(67		)	—			428
	Total assets	1,029			725				435		593		600			202			—			24			3,608
	At December 31, 2011, and for the Year Ended
	Revenues from external customers	$	2,288		$	1,849			$	624	$	1,126	$	1,164		$	154		$	—		$	—		$	7,205
	Intersegment revenues	3			104				—		9		52			26			—			(194		)	—
	EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	172			79				47		76		69			(6		)	(58		)	—			379
	Total assets	889			719				386		530		607			181			—			25			3,337
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
		Year Ended December 31,
		2013			2012				2011
		(Millions)
	Clean Air Systems & Products
	Aftermarket	$	327		$	318			$	351
	Original Equipment
	OE Value-add	3,282			2,948				2,732
	OE Substrate	1,835			1,660				1,678
		5,117			4,608				4,410
		5,444			4,926				4,761
	Ride Performance Systems & Products
	Aftermarket	953			944				944
	Original Equipment	1,567			1,493				1,500
		2,520			2,437				2,444
	Total Revenues	$	7,964		$	7,363			$	7,205
Revenue Percent by Major Customers	'
	The following customers accounted for 10 percent or more of our net sales in the last three years.
	Customer	2013		2012			2011
	General Motors	15	%	17	%		19	%
	Ford	14	%	15	%		15	%
Geographic Information Table	'
	The following table shows information relating to the geographic regions in which we operate:
		Geographic Area
		United			Germany				Canada		China		Other			Reclass &			Consolidated
		States											Foreign(a)			Elims
		(Millions)
	At December 31, 2013, and for the Year Then Ended
	Revenues from external customers(b)	$	3,144		$	941			$	387	$	875	$	2,617		$	—		$	7,964
	Long-lived assets(c)	448			120				59		158		531			—			1,316
	Total assets	1,552			358				182		602		1,326			(190		)	3,830
	At December 31, 2012, and for the Year Then Ended
	Revenues from external customers(b)	$	2,975		$	817			$	389	$	661	$	2,521		$	—		$	7,363
	Long-lived assets(c)	429			115				57		139		521			—			1,261
	Total assets	1,521			344				168		448		1,307			(180		)	3,608
	At December 31, 2011, and for the Year Then Ended
	Revenues from external customers(b)	$	2,795		$	826			$	343	$	567	$	2,674		$	—		$	7,205
	Long-lived assets(c)	359			110				57		104		530			—			1,160
	Total assets	1,280			347				163		387		1,251			(91		)	3,337
	(a)	Revenues from external customers and long-lived assets for individual foreign countries other than Germany, Canada, and China 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, 2013
Warranty Accrual Table	'
	Below is a table that shows the activity in the warranty accrual accounts:
		Year Ended
		December 31,
		2013			2012			2011
		(Millions)
	Beginning Balance	$	23		$	26		$	33
	Accruals related to product warranties	20			15			11
	Reductions for payments made	(19		)	(18		)	(18		)
	Ending Balance	$	24		$	23		$	26

Supplemental_Guarantor_Condens1

Supplemental Guarantor Condensed Consolidating Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2013
Statement of Comprehensive Income (Loss)	'
	STATEMENT OF COMPREHENSIVE INCOME (LOSS)
		For the Year Ended December 31, 2013
		Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
		Subsidiaries			Subsidiaries			(Parent			& Elims
								Company)
		(Millions)
	Revenues
	Net sales and operating revenues —
	External	$	3,498		$	4,466		$	—		$	—		$	7,964
	Affiliated companies	350			572			—			(922		)	—
		3,848			5,038			—			(922		)	7,964
	Costs and expenses
	Cost of sales (exclusive of depreciation and amortization shown below)	3,103			4,553			—			(922		)	6,734
	Goodwill impairment charge	—			—			—			—			—
	Engineering, research, and development	66			78			—			—			144
	Selling, general, and administrative	187			260			6			—			453
	Depreciation and amortization of other intangibles	78			127			—			—			205
		3,434			5,018			6			(922		)	7,536
	Other income (expense)
	Loss on sale of receivables	—			(4		)	—			—			(4		)
	Other income (expense)	(1		)	59			—			(58		)	—
		(1		)	55			—			(58		)	(4		)
	Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income from affiliated companies	413			75			(6		)	(58		)	424
	Interest expense —
	External (net of interest capitalized)	(2		)	5			77			—			80
	Affiliated companies (net of interest income)	70			(72		)	2			—			—
	Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies	345			142			(85		)	(58		)	344
	Income tax expense	60			62			—			—			122
	Equity in net income (loss) from affiliated companies	32			—			268			(300		)	—
	Net income (loss)	317			80			183			(358		)	222
	Less: Net income attributable to noncontrolling interests	—			39			—			—			39
	Net income (loss) attributable to Tenneco Inc.	$	317		$	41		$	183		$	(358	)	$	183
	Comprehensive income (loss) attributable to Tenneco Inc.	$	390		$	16		$	183		$	(358	)	$	231
	STATEMENT OF COMPREHENSIVE INCOME (LOSS)
		For the Year Ended December 31, 2012
		Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
		Subsidiaries			Subsidiaries			(Parent			& Elims
								Company)
		(Millions)
	Revenues
	Net sales and operating revenues —
	External	$	3,331		$	4,032		$	—		$	—		$	7,363
	Affiliated companies	182			547			—			(729		)	—
		3,513			4,579			—			—			7,363
	Costs and expenses
	Cost of sales (exclusive of depreciation and amortization shown below)	3,056			3,843			—			(729		)	6,170
	Goodwill impairment charge	—			—			—			—			—
	Engineering, research, and development	57			69			—			—			126
	Selling, general, and administrative	198			224			5			—			427
	Depreciation and amortization of other intangibles	72			133			—			—			205
		3,383			4,269			5			(729		)	6,928
	Other income (expense)
	Loss on sale of receivables	—			(4		)	—			—			(4		)
	Other income (expense)	115			(71		)	—			(47		)	(3		)
		115			(75		)	—			(47		)	(7		)
	Earnings (loss) before interest expense, income taxes, noncontrolling interests and equity in net income from affiliated companies	245			235			(5		)	(47		)	428
	Interest expense —
	External (net of interest capitalized)	—			5			100			—			105
	Affiliated companies (net of interest income)	212			(81		)	(131		)	—			—
	Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies	33			311			26			(47		)	323
	Income tax expense	(39		)	58			—			—			19
	Equity in net income (loss) from affiliated companies	217			—			249			(466		)	—
	Net income (loss)	289			253			275			(513		)	304
Less: Net income attributable to noncontrolling interests	—			29			—			—			29
Net income (loss) attributable to Tenneco Inc.	$	289		$	224		$	275		$	(513	)	$	275
Comprehensive income (loss) attributable to Tenneco Inc.	$	277		$	210		$	275		$	(513	)	$	249
STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	For the Year Ended December 31, 2011
	Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
	Subsidiaries			Subsidiaries			(Parent			& Elims
							Company)
	(Millions)
Revenues
Net sales and operating revenues —
External	$	3,103		$	4,102		$	—		$	—		$	7,205
Affiliated companies	162			514			—			(676		)	—
	3,265			4,616			—			(676		)	7,205
Costs and expenses
Cost of sales (exclusive of depreciation and amortization shown below)	2,764			3,949			—			(676		)	6,037
Goodwill impairment charge	—			11			—			—			11
Engineering, research, and development	57			76			—			—			133
Selling, general, and administrative	144			281			3			—			428
Depreciation and amortization of other intangibles	74			133			—			—			207
	3,039			4,450			3			(676		)	6,816
Other income (expense)
Loss on sale of receivables	—			(5		)	—			—			(5		)
Other income (expense)	80			1			—			(86		)	(5		)
	80			(4		)	—			(86		)	(10		)
Earnings (loss) before interest expense, income taxes, noncontrolling interests, and equity in net income from affiliated companies	306			162			(3		)	(86		)	379
Interest expense —
External (net of interest capitalized)	(1		)	6			103			—			108
Affiliated companies (net of interest income)	211			(72		)	(139		)	—			—
Earnings (loss) before income taxes, noncontrolling interests, and equity in net income from affiliated companies	96			228			33			(86		)	271
Income tax expense	12			76			—			—			88
Equity in net income (loss) from affiliated companies	116			—			124			(240		)	—
Net income (loss)	200			152			157			(326		)	183
Less: Net income attributable to noncontrolling interests	—			26			—			—			26
Net income (loss) attributable to Tenneco Inc.	$	200		$	126		$	157		$	(326	)	$	157
Comprehensive income (loss) attributable to Tenneco Inc.	$	105		$	81		$	157		$	(326	)	$	17
Balance Sheet	'
	BALANCE SHEET
		31-Dec-13
		Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
		Subsidiaries			Subsidiaries			(Parent			& Elims
								Company)
		(Millions)
	ASSETS
	Current assets:
	Cash and cash equivalents	$	6		$	269		$	—		$	—		$	275
	Restricted cash	—			5			—			—			5
	Receivables, net	387			1,306			16			(649		)	1,060
	Inventories	279			377			—			—			656
	Deferred income taxes	87			—			7			(23		)	71
	Prepayments and other	35			188			—			—			223
	Total current assets	794			2,145			23			(672		)	2,290
	Other assets:
	Investment in affiliated companies	944			—			696			(1,640		)	—
	Notes and advances receivable from affiliates	1,026			7,320			4,826			(13,172		)	—
	Long-term receivables, net	12			2			—			—			14
	Goodwill	22			47			—			—			69
	Intangibles, net	13			17			—			—			30
	Deferred income taxes	72			9			44			—			125
	Pension Assets	—			—			—			—			—
	Other	44			60			23			—			127
		2,133			7,455			5,589			(14,812		)	365
	Plant, property, and equipment, at cost	1,173			2,325			—			—			3,498
	Less — Accumulated depreciation and amortization	(807		)	(1,516		)	—			—			(2,323		)
		366			809			—			—			1,175
	Total assets	$	3,293		$	10,409		$	5,612		$	(15,484	)	$	3,830
	LIABILITIES AND SHAREHOLDERS’ EQUITY
	Current liabilities:
	Short-term debt (including current maturities of long-term debt)
	Short-term debt — non-affiliated	$	—		$	68		$	15		$	—		$	83
	Short-term debt — affiliated	247			176			10			(433		)	—
	Accounts payable	521			1,011			—			(173		)	1,359
	Accrued taxes	9			31			—			—			40
	Other	128			285			9			(66		)	356
	Total current liabilities	905			1,571			34			(672		)	1,838
	Long-term debt — non-affiliated	—			8			1,011			—			1,019
	Long-term debt — affiliated	1,700			7,338			4,134			(13,172		)	—
	Deferred income taxes	—			28			—			—			28
	Postretirement benefits and other liabilities	357			92			—			4			453
	Commitments and contingencies
	Total liabilities	2,962			9,037			5,179			(13,840		)	3,338
	Redeemable noncontrolling interests	—			20			—			—			20
	Tenneco Inc. Shareholders’ equity	331			1,313			433			(1,644		)	433
	Noncontrolling interests	—			39			—			—			39
	Total equity	331			1,352			433			(1,644		)	472
	Total liabilities, redeemable noncontrolling interests and equity	$	3,293		$	10,409		$	5,612		$	(15,484	)	$	3,830
	BALANCE SHEET
		31-Dec-12
		Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
		Subsidiaries			Subsidiaries			(Parent			& Elims
								Company)
		(Millions)
	ASSETS
	Current assets:
	Cash and cash equivalents	$	4		$	219		$	—		$	—		$	223
	Receivables, net	341			1,268			30			(653		)	986
	Inventories	278			389			—			—			667
	Deferred income taxes	91			—			6			(25		)	72
	Prepayments and other	28			148			—			—			176
	Total current assets	742			2,024			36			(678		)	2,124
Other assets:
Investment in affiliated companies	551			—			717			(1,268		)	—
Notes and advances receivable from affiliates	957			4,495			4,594			(10,046		)	—
Long-term receivables, net	2			2			—			—			4
Goodwill	21			51			—			—			72
Intangibles, net	18			17			—			—			35
Deferred income taxes	55			1			60			—			116
Other	31			75			29			—			135
	1,635			4,641			5,400			(11,314		)	362
Plant, property, and equipment, at cost	1,098			2,267			—			—			3,365
Less — Accumulated depreciation and amortization	(763		)	(1,480		)	—			—			(2,243		)
	335			787			—			—			1,122
Total assets	$	2,712		$	7,452		$	5,436		$	(11,992	)	$	3,608
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities:
Short-term debt (including current maturities of long-term debt)
Short-term debt — non-affiliated	$	—		$	112		$	1		$	—		$	113
Short-term debt — affiliated	250			173			10			(433		)	—
Accounts payable	423			954			—			(191		)	1,186
Accrued taxes	16			34			—			—			50
Other	135			210			9			(54		)	300
Total current liabilities	824			1,483			20			(678		)	1,649
Long-term debt — non-affiliated	—			8			1,059			—			1,067
Long-term debt — affiliated	1,447			4,533			4,066			(10,046		)	—
Deferred income taxes	—			27			—			—			27
Postretirement benefits and other liabilities	438			118			—			3			559
Commitments and contingencies
Total liabilities	2,709			6,169			5,145			(10,721		)	3,302
Redeemable noncontrolling interests	—			15			—			—			15
Tenneco Inc. Shareholders’ equity	3			1,223			291			(1,271		)	246
Noncontrolling interests	—			45			—			—			45
Total equity	3			1,268			291			(1,271		)	291
Total liabilities, redeemable noncontrolling interests and equity	$	2,712		$	7,452		$	5,436		$	(11,992	)	$	3,608
Statement of Cash Flows	'
	STATEMENT OF CASH FLOWS
		Year Ended December 31, 2013
		Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
		Subsidiaries			Subsidiaries			(Parent			& Elims
								Company)
		(Millions)
	Operating Activities
	Net cash provided (used) by operating activities	$	270		$	185		$	48		$	—		$	503
	Investing Activities
	Proceeds from sale of assets	1			7			—			—			8
	Cash payments for plant, property, and equipment	(102		)	(142		)	—			—			(244		)
	Cash payments for software related intangible assets	(19		)	(6		)	—			—			(25		)
	Changes in restricted cash	—			(5		)	—			—			(5		)
	Net cash used by investing activities	(120		)	(146		)	—			—			(266		)
	Financing Activities
	Retirement of long-term debt	—			(2		)	(14		)	—			(16		)
	Tax benefit from stock-based compensation	—			—			24			—			24
	Purchase of common stock under the share repurchase program	—			—			(27		)	—			(27		)
	Issuance of common stock	—			—			20			—			20
	Increase in bank overdrafts	—			(6		)	—			—			(6		)
	Net increase in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable	—			(43		)	21			—			(22		)
	Net increase in short-term borrowings secured by accounts receivable	—			—			(40		)	—			(40		)
	Intercompany dividends and net increase (decrease) in intercompany obligations	(148		)	180			(32		)	—			—
	Purchase of noncontrolling equity interest	—			(69		)	—			—			(69		)
	Distribution to noncontrolling interests partners	—			(39		)	—			—			(39		)
	Net cash provided (used) by financing activities	(148		)	21			(48		)	—			(175		)
	Effect of foreign exchange rate changes on cash and cash equivalents	—			(10		)	—			—			(10		)
	Increase in cash and cash equivalents	2			50			—			—			52
	Cash and cash equivalents, January 1	4			219			—			—			223
	Cash and cash equivalents, December 31 (Note)	$	6		$	269		$	—		$	—		$	275
	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, 2012
		Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
		Subsidiaries			Subsidiaries			(Parent			& Elims
								Company)
		(Millions)
	Operating Activities
	Net cash provided (used) by operating activities	$	385		$	206		$	(226	)	$	—		$	365
	Investing Activities
	Proceeds from sale of assets	—			3			—			—			3
	Cash payments for plant, property, and equipment	(101		)	(155		)	—			—			(256		)
	Cash payments for software related intangible assets	(6		)	(7		)	—			—			(13		)
	Cash payments for net assets purchased	(7		)	—			—			—			(7		)
	Net cash used by investing activities	(114		)	(159		)	—			—			(273		)
	Financing Activities
	Retirement of long-term debt	—			(1		)	(410		)	—			(411		)
	Issuance of long-term debt	—			—			250			—			250
	Debt issuance cost on long-term debt	—			—			(13		)	—			(13		)
	Purchase of common stock under the share repurchase program	—			—			(18		)	—			(18		)
	Issuance of common stock	—			—			5			—			5
	Increase in bank overdrafts	—			5			—			—			5
	Net increase in revolver borrowings and short-term debt excluding current maturities of long-term debt and short-term borrowings secured by accounts receivable	—			48			19			—			67
	Net increase in short-term borrowings secured by accounts receivable	—			—			50			—			50
	Intercompany dividends and net increase (decrease) in intercompany obligations	(268		)	(75		)	343			—			—
	Capital contribution from noncontrolling interest partner	—			5			—			—			5
	Distribution to noncontrolling interests partners	—			(29		)	—			—			(29		)
	Net cash provided (used) by financing activities	(268		)	(47		)	226			—			(89		)
	Effect of foreign exchange rate changes on cash and cash equivalents	—			6			—			—			6
	Increase (decrease) in cash and cash equivalents	3			6			—			—			9
	Cash and cash equivalents, January 1	1			213			—			—			214
	Cash and cash equivalents, December 31 (Note)	$	4		$	219		$	—		$	—		$	223
	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, 2011
	Guarantor			Nonguarantor			Tenneco Inc.			Reclass			Consolidated
	Subsidiaries			Subsidiaries			(Parent			& Elims
							Company)
	(Millions)
Operating Activities
Net cash provided (used) by operating activities	$	401		$	83		$	(239	)	$	—		$	245
Investing Activities
Proceeds from sale of assets	3			1			—			—			4
Cash payments for plant, property, and equipment	(69		)	(144		)	—			—			(213		)
Cash payments for software related intangible assets	(4		)	(11		)	—			—			(15		)
Cash payments for net assets purchased	—			—			—			—			—
Net cash used by investing activities	(70		)	(154		)	—			—			(224		)
Financing Activities
Retirement of long-term debt	—			(1		)	(23		)	—			(24		)
Issuance of long-term debt	—			5			—			—			5
Debt issuance cost on long-term debt	—			—			(1		)	—			(1		)
Purchase of common stock under the share repurchase program	—			—			(16		)	—			(16		)
Increase in bank overdrafts	—			3			—			—			3
Net decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt	—			6			24			—			30
Net increase in short-term borrowings secured by accounts receivable	—			—			—			—			—
Intercompany dividends and net increase (decrease) in intercompany obligations	(330		)	75			255			—			—
Capital contribution from noncontrolling interest partner	—			1			—			—			1
Purchase of noncontrolling equity interest	—			(4		)	—			—			(4		)
Distribution to noncontrolling interests partners	—			(20		)	—			—			(20		)
Net cash provided (used) by financing activities	(330		)	65			239			—			(26		)
Effect of foreign exchange rate changes on cash and cash equivalents	—			(14		)	—			—			(14		)
Increase (decrease) in cash and cash equivalents	1			(20		)	—			—			(19		)
Cash and cash equivalents, January 1	—			233			—			—			233
Cash and cash equivalents, December 31 (Note)	$	1		$	213		$	—		$	—		$	214
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_Unaud1

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Data	'
	Quarter	Net Sales		Cost of Sales		Earnings Before		Net Income
		and		(Excluding		Interest Expense,		Attributable
		Operating		Depreciation and		Income Taxes		to Tenneco
		Revenues		Amortization)		and Noncontrolling		Inc.
						Interests
		(Millions)
	2013
	1st	$	1,903	$	1,604	$	93	$	54
	2nd	2,067		1,736		141		63
	3rd	1,963		1,691		72		12
	4th	2,031		1,703		118		54
		$	7,964	$	6,734	$	424	$	183
	2012
	1st	$	1,912	$	1,607	$	96	$	30
	2nd	1,920		1,595		137		87
	3rd	1,778		1,494		111		125
	4th	1,753		1,474		84		33
		$	7,363	$	6,170	$	428	$	275
	Quarter	Basic		Diluted
		Earnings		Earnings
		per Share of		per Share of
		Common Stock		Common Stock
	2013
	1st	$	0.9	$	0.88
	2nd	1.04		1.02
	3rd	0.19		0.19
	4th	0.9		0.88
	Full Year	3.03		2.97
	2012
	1st	$	0.5	$	0.49
	2nd	1.45		1.42
	3rd	2.09		2.05
	4th	0.55		0.54
	Full Year	4.58		4.5

Summary_of_Accounting_Policies3

Summary of Accounting Policies - Consolidation and Presentation (Narrative) (Details)	Dec. 31, 2013
Minimum	'
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]	'
Range of percentages of investments, equity method investments	20.00%
Maximum	'
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]	'
Range of percentages of investments, equity method investments	50.00%

Summary_of_Accounting_Policies4

Summary of Accounting Policies - Redeemable Noncontrolling Interests (Narrative) (Details) (USD $)	12 Months Ended	1 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Aug. 31, 2011
	joint_venture	Tenneco Automotive Thailand Ltd [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]	'	'
Number of joint ventures	4	'
Additional equity interest purchased in joint venture	'	25.00%
Payment to acquire additional interest in joint venture	'	$4
Equity ownership percentage after additional acquisition	'	100.00%
Equity ownership percentage before additional acquisition	'	75.00%

Redeemable_Non_Controlling_Int

- Redeemable Non Controlling Interest (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]	'	'	'
Balance January 1	$15	$12	$12
Net income attributable to redeemable noncontrolling interests	14	9	7
Sale of 25 percent equity interest to Tenneco Inc	0	0	-2
Capital Contributions	0	2	1
Dividends declared	-9	-8	-6
Balance December 31	$20	$15	$12

Inventories_by_Major_Classific

- Inventories by Major Classification (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Accounting Policies [Abstract]	'	'
Finished goods	$267	$273
Work in process	202	207
Raw materials	130	133
Materials and supplies	57	54
Inventories	$656	$667

Summary_of_Accounting_Policies5

Summary of Accounting Policies - Goodwill and Intangibles, Net (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2008
Accounting Policies [Abstract]	'	'	'	'	'
Goodwill impairment charge	$11	$0	$0	$11	'
Finite useful life of intangible assets, Minimum	'	'5 years	'	'	'
Finite useful life of intangible assets, Maximum	'	'50 years	'	'	'
Amortization of intangibles	'	5	5	2	'
Estimated amortization of intangible assets, 2014	'	3	'	'	'
Estimated amortization of intangible assets, 2015	'	5	'	'	'
Estimated amortization of intangible assets, 2016	'	4	'	'	'
Estimated amortization of intangible assets, 2017	'	3	'	'	'
Estimated amortization of intangible assets, 2018	'	2	'	'	'
Capitalization of indefinite life purchased trademarks	'	'	'	'	$1

Net_Carrying_Amount_of_Goodwil

- Net Carrying Amount of Goodwill (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Intangible Assets And Goodwill [Line Items]	'	'
Balance as January 1 Goodwill	$72	$74
Translation adjustments	-3	-2
Balance at December 31 Goodwill	69	72
Clean Air Division | North America	'	'
Intangible Assets And Goodwill [Line Items]	'	'
Balance as January 1 Goodwill	14	15
Translation adjustments	0	-1
Balance at December 31 Goodwill	14	14
Clean Air Division | Europe, South America, and India	'	'
Intangible Assets And Goodwill [Line Items]	'	'
Balance as January 1 Goodwill	14	13
Translation adjustments	0	0
Balance at December 31 Goodwill	14	14
Clean Air Division | Asia Pacific	'	'
Intangible Assets And Goodwill [Line Items]	'	'
Balance as January 1 Goodwill	0	0
Translation adjustments	0	0
Balance at December 31 Goodwill	0	0
Ride Performance Division | North America	'	'
Intangible Assets And Goodwill [Line Items]	'	'
Balance as January 1 Goodwill	10	10
Translation adjustments	0	0
Balance at December 31 Goodwill	10	10
Ride Performance Division | Europe, South America, and India	'	'
Intangible Assets And Goodwill [Line Items]	'	'
Balance as January 1 Goodwill	34	36
Translation adjustments	-3	-1
Balance at December 31 Goodwill	31	34
Ride Performance Division | Asia Pacific	'	'
Intangible Assets And Goodwill [Line Items]	'	'
Balance as January 1 Goodwill	0	0
Translation adjustments	0	0
Balance at December 31 Goodwill	$0	$0

FiniteLived_Intangible_Assets_

- Finite-Lived Intangible Assets (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Value	$48	$48
Accumulated Amortization	-19	-12
Customer Contracts	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Value	8	8
Accumulated Amortization	-4	-3
Patents	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Value	3	3
Accumulated Amortization	-2	-1
Technology Rights	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Value	26	26
Accumulated Amortization	-12	-7
Other	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Value	11	11
Accumulated Amortization	($1)	($1)

Plant_Property_and_Equipment_D

- Plant Property, and Equipment (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Accounting Policies [Abstract]	'	'
Land, buildings, and improvements	$579	$563
Machinery and equipment	2,673	2,574
Other, including construction in progress	246	228
Plant, property, and equipment, at cost	$3,498	$3,365

Summary_of_Accounting_Policies6

Summary of Accounting Policies - Plant, Property, and Equipment, at Cost (Narrative) (Details)	12 Months Ended
	Dec. 31, 2013
Building Improvements | Minimum	'
Property, Plant and Equipment [Line Items]	'
Useful life of plant, property and equipment	'10 years
Building Improvements | Maximum	'
Property, Plant and Equipment [Line Items]	'
Useful life of plant, property and equipment	'50 years
Machinery and Equipment | Minimum	'
Property, Plant and Equipment [Line Items]	'
Useful life of plant, property and equipment	'3 years
Machinery and Equipment | Maximum	'
Property, Plant and Equipment [Line Items]	'
Useful life of plant, property and equipment	'25 years

Summary_of_Accounting_Policies7

Summary of Accounting Policies - Notes and Accounts Receivable and Allowance for Doubtful Accounts (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Accounting Policies [Abstract]	'	'
Short-term and long-term accounts receivable outstanding	$1,065	$980
Allowance for doubtful accounts on short-term and long-term accounts receivable	14	14
Short and Long-term notes receivable outstanding	5	3
Allowance for doubtful accounts on short-term and long-term notes receivable	$0	$0

Summary_of_Accounting_Policies8

Summary of Accounting Policies - Pre-production Design and Development and Tooling Assets (Narrative) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Accounting Policies [Abstract]	'	'
Unbilled pre-production design and development costs	$30	$25
Original Equipment tools and dies, owned	59	50
In-process tools and dies built for original equipment customers	$86	$66

Summary_of_Accounting_Policies9

Summary of Accounting Policies - Internal Use Software Assets (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]	'	'	'
Capitalized software development costs, net of amortization	$55	$58	'
Amortization of software development costs	$15	$15	$18
Minimum | Software Development [Member]	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Finite useful life of intangible assets, Maximum	'3 years	'	'
Maximum | Software Development [Member]	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Finite useful life of intangible assets, Maximum	'12 years	'	'

Recovered_Sheet1

Summary of Accounting Policies - Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]	'	'	'
Income tax expense (benefit)	$122	$19	$88
Tax benefit related to recognizing a U.S. tax benefit or foreign taxes and changes to prior year estimates	25	'	'
Impact on earnings related to reversal of valuation allowance	'	$81	'

Recovered_Sheet2

Summary of Accounting Policies - Revenue Recognition (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]	'	'	'
Substrate sales revenue	$1,835	$1,660	$1,678

Recovered_Sheet3

Summary of Accounting Policies - Engineering, Research and Development (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]	'	'	'
Engineering, research, and development	$144	$126	$133
Customer reimbursements for engineering, research and development expenses	$169	$159	$119

Recovered_Sheet4

Summary of Accounting Policies - Advertising and Promotion Expenses (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]	'	'	'
Advertising and promotion expenses	$53	$54	$61

Recovered_Sheet5

Summary of Accounting Policies - Foreign Currency Translation (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]	'	'	'
Foreign currency transaction losses	$13	$8	$3

Recovered_Sheet6

Summary of Accounting Policies - Risk Management Activities (Details) (Forward Contracts, USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Forward Contracts	'
Derivative [Line Items]	'
Net asset position (less than $1 million dollars)	($1)

Restricted_Net_Assets_Narrativ

- Restricted Net Assets (Narrative) (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Accounting Policies [Abstract]	'	'
Restricted Net Assets	$177	$183

Earnings_Per_Share_Summary_of_

Earnings Per Share - Summary of Earnings Per Share of Common Stock (Detail) (USD $)	3 Months Ended								12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Summary Of Earnings Per Share Of Common Stock [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Net income attributable to Tenneco Inc.	$54	$12	$63	$54	$33	$125	$87	$30	$183	$275	$157
Average shares of common stock outstanding	'	'	'	'	'	'	'	'	60,474,492	59,985,677	59,884,139
Earnings per average share of common stock (in dollars per share)	$0.90	$0.19	$1.04	$0.90	$0.55	$2.09	$1.45	$0.50	$3.03	$4.58	$2.62
Effect of dilutive securities:	'	'	'	'	'	'	'	'	'	'	'
Restricted stock	'	'	'	'	'	'	'	'	205,020	140,609	168,539
Stock options	'	'	'	'	'	'	'	'	914,550	957,224	1,467,482
Average shares of common stock outstanding including dilutive securities	'	'	'	'	'	'	'	'	61,594,062	61,083,510	61,520,160
Diluted earnings per share of common stock (in dollars per share)	$0.88	$0.19	$1.02	$0.88	$0.54	$2.05	$1.42	$0.49	$2.97	$4.50	$2.55

Earnings_Per_Share_Additional_

Earnings Per Share - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Earnings Per Share Additional Information [Abstract]	'	'	'
Anti-dilutive stock options	205,104	521,249	202,009

Acquisitions_Additional_Inform

Acquisitions -Additional Information (Detail) (USD $)	1 Months Ended		3 Months Ended	1 Months Ended
In Millions, unless otherwise specified	Aug. 31, 2011	Dec. 31, 2013	Dec. 31, 2013	Sep. 30, 2012
	Clear Air Joint Venture in Thailand	TTEC	TTEC	Intellectual Property Rights
				Emission Control Systems And Products
Business Acquisition [Line Items]	'	'	'	'
Additional equity interest purchased in joint venture	25.00%	20.00%	20.00%	'
Payment to acquire additional interest in joint venture	$4	$9	$69	'
Increase in equity ownership percentage in joint venture	'100 percent from 75 percent	'	'	'
Equity ownership percentage before additional acquisition	75.00%	'	'	'
Equity ownership percentage after additional acquisition	100.00%	'	'	'
Acquired certain rights from Combustion Components Associates Inc	'	'	'	$7

Acquisitions_Transfers_to_Nonc

Acquisitions -Transfers to Noncontrolling Interest (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Combinations [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Net income attributable to Tenneco Inc.	$54	$12	$63	$54	$33	$125	$87	$30	$183	$275	$157
Decrease in equity for purchase of noncontrolling equity interest	'	'	'	'	'	'	'	'	-68	0	-2
Net income attributable to Tenneco Inc. shareholders less purchase of noncontrolling equity interest	'	'	'	'	'	'	'	'	$115	$275	$155

Restructuring_and_Other_Charge2

Restructuring and Other Charges - Additional Information (Detail) (USD $)

12 Months Ended

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

European Ride Control Business

Facility Closing [Member]

Vittaryd Plant Closing

Vittaryd Plant Closing

Cost of Sales

Cost of Sales

Cost of Sales

Selling, General and Administrative Expenses

Selling, General and Administrative Expenses

Engineering Expense

Other Expense

Europe

Restructuring Cost and Reserve [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Restructuring and related costs

$78

'

'

'

'

$70

$13

$8

$6

'

$1

$1

'

Noncash asset write downs

'

'

'

'

'

'

10

'

'

3

'

'

'

Non- cash charges

3

'

'

3

4

'

4

'

'

'

'

'

'

Restructuring and related cost allowed to be excluded from the calculation of financial covenant ratios

80

'

'

'

'

'

'

'

'

'

'

'

'

Non-cash impairment charge

'

7

'

'

'

'

'

'

'

'

'

'

'

Restructuring Charges

'

'

$78

$69

'

'

'

'

'

'

'

'

$60

Restructuring_and_Other_Charge3

Restructuring and Other Charges - Roll Forward of Restructuring Reserve (Detail) (Employee Severance, USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Employee Severance	'
Restructuring Reserve [Roll Forward]	'
December 31, 2012 Restructuring Reserve	$0
2013 Expenses	75
2013 Cash Payments	-32
Impact of Exchange Rates	1
December 31, 2013 Restructuring Reserve	$44

Summary_of_LongTerm_Debt_Oblig

- Summary of Long-Term Debt Obligations (Detail) (USD $)	Dec. 31, 2013		Dec. 31, 2012
In Millions, unless otherwise specified
Debt Instrument [Line Items]	'		'
Secured debt	$376	[1]	'
Long-term debt (including current maturities)	1,021		1,070
Less - maturities classified as current	2		3
Total long-term debt	1,019		1,067
Revolver Borrowings due 2017	'		'
Debt Instrument [Line Items]	'		'
Secured debt	58		92
Senior Term Loan due 2014 through 2017	'		'
Debt Instrument [Line Items]	'		'
Secured debt	228		241
7 3/4% Senior Notes due 2018	'		'
Debt Instrument [Line Items]	'		'
Unsecured debt	225		225
6 7/8% Senior Notes due 2020	'		'
Debt Instrument [Line Items]	'		'
Unsecured debt	500		500
Debentures due 2014 through 2026	'		'
Debt Instrument [Line Items]	'		'
Unsecured debt	1		1
Customer Notes due 2013	'		'
Debt Instrument [Line Items]	'		'
Unsecured debt	0		1
Notes due 2014 through 2026	'		'
Debt Instrument [Line Items]	'		'
Unsecured debt	$9		$10
[1]	We generally are required to pay commitment fees on the unused portion of the total commitment.

Summary_of_LongTerm_Debt_Oblig1

- Summary of Long-Term Debt Obligations (Parenthetical) (Detail)	Dec. 31, 2013	Dec. 31, 2012
Revolver Borrowings due 2017	'	'
Debt Instrument [Line Items]	'	'
Average effective interest rate	2.70%	1.20%
Senior Term Loan due 2014 through 2017	'	'
Debt Instrument [Line Items]	'	'
Average effective interest rate	2.70%	3.00%
7 3/4% Senior Notes due 2018	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate	7.75%	7.75%
6 7/8% Senior Notes due 2020	'	'
Debt Instrument [Line Items]	'	'
Stated interest rate	6.88%	6.88%
Debentures due 2013 through 2025	'	'
Debt Instrument [Line Items]	'	'
Average effective interest rate	7.50%	8.40%
Customer Notes due 2013	'	'
Debt Instrument [Line Items]	'	'
Average effective interest rate	8.00%	8.00%
Notes due 2013 through 2025	'	'
Debt Instrument [Line Items]	'	'
Average effective interest rate	1.30%	1.30%

Additional_Information_Detail

-Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

1 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 22, 2012

Mar. 22, 2012

Mar. 22, 2012

Apr. 30, 2012

Mar. 31, 2012

Jun. 30, 2012

Apr. 06, 2012

Mar. 22, 2012

Mar. 08, 2012

Dec. 31, 2013

Mar. 08, 2012

Dec. 31, 2013

Mar. 08, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2013

Feb. 28, 2014

Dec. 31, 2013

Dec. 31, 2013

Minimum

North America

North America

Europe

Europe

Europe

Expiration of Former Revolving Credit Agreement due 2014

Expiration Of Tranche B Term Facility

Expiration of Tranche B-1 letter of credit and revolving loan facilities

8 1/8 Percent Senior Notes due in 2015

8 1/8 Percent Senior Notes due in 2015

8 1/8 Percent Senior Notes due in 2015

8 1/8 Percent Senior Notes due in 2015

8 1/8 Percent Senior Notes due in 2015

8 1/8 Percent Senior Notes due in 2015

Revolving Credit Facility

Revolving Credit Facility

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Tranche A Term Facility due March 22, 2017

Letter of Credit

7 3/4 Percent Senior Notes due August 15, 2018

6 7/8 Percent Senior Notes due Dec 15, 2020

Other Debt

Senior Credit Facility

Senior Credit Facility

Senior Credit Facility

Senior Credit Facility

Senior Credit Facility

London Interbank Offered Rate (LIBOR)

JP Morgan Chase Prime Rate

Federal Funds Effective Rate

Federal Funds Effective Rate

Eurodollar Rate

Eurodollar Rate

June 30, 2012 through March 31, 2014

June 30, 2014 through March 31, 2015

June 30, 2015 through March 31, 2016

June 30, 2016 through December 31, 2016

Due on March 22, 2017

Subsequent Event

Minimum

Maximum

Initial Spread

Ending Spread

Initial Spread

Ending Spread

Long Term Debt And Other Financing Arrangement [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maturities and sinking fund requirement applicable to long term debt 2014

'

$23

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$22

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maturities and sinking fund requirement applicable to long term debt 2015

'

35

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maturities and sinking fund requirement applicable to long term debt 2016

'

48

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maturities and sinking fund requirement applicable to long term debt 2017

'

184

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maturities and sinking fund requirement applicable to long term debt 2018

'

226

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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

'

'

'

'

'

'

'

'

556

148

130

'

'

'

'

'

'

850

850

228

250

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior note rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8.13%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit facility, maturity date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

22-Mar-17

'

22-Mar-17

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayment of term loan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.1

6.3

9.4

12.5

125

'

'

'

'

'

'

'

'

'

Amount of debt offered for exchange by the company

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

250

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount of debt tendered for exchange by the holders

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

232

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument redemption price as percentage of principal amount prior quarter

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

104.44%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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

'

'

'

'

'

'

'

'

'

'

'

18

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument redemption price as percentage of principal amount current quarter

'

'

'

'

'

'

'

'

'

'

'

'

'

'

104.06%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expenses related to redemption

'

'

'

'

'

'

'

'

'

'

'

'

17

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unused borrowing capacity

'

775

[1]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

755

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding borrowings in senior secured credit facility

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

58

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit facility letters of credit outstanding

'

37

[1],[2]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

37

'

'

'

'

'

'

'

'

Unsecured debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

225

500

91

'

'

'

'

'

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%

'

-0.25%

'

'

Senior secured leverage ratio

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.39

1.86

'

1.5

2.5

Commitment fee basis points

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.40%

'

'

'

'

Basis spread on variable rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

250.00%

150.00%

50.00%

150.00%

100.00%

150.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Leverage ratio required (maximum) through March 22, 2017

3.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest coverage required (minimum) through December 31, 2013

'

2.55

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest coverage ratio (minimum) effective from through March 22, 2017

2.75

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Redemption Price, Percentage

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percent of the principal amount thereof plus accrued and unpaid interest

'

101.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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

'

'

2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

North American Program maximum facility size

'

'

'

110

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional financing from second priority facility

'

'

'

40

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding third party investments in securitized accounts receivable bank program

'

'

'

10

50

134

94

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Term of Commitments

'

'

'

'

'

'1 year

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Bank facility cancellation notification

'

'

'

'

'

'90 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest expense recognized from securitization of receivables

'

'

'

2

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on sale of trade accounts receivable

'

'

'

'

'

($4)

($4)

($5)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Discount rate on sale of securitized receivables

'

'

'

'

'

3.00%

3.00%

3.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

We generally are required to pay commitment fees on the unused portion of the total commitment.

[2]

Letters of credit reduce the available borrowings under the revolving credit agreement.

ShortTerm_Debt_Detail

- Short-Term Debt (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Disclosure Short Term Debt [Abstract]	'	'
Maturities classified as current	$2	$3
Short-term borrowings	81	110
Total short-term debt	$83	$113

Notes_Payable_Detail

- Notes Payable (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Short-term Debt [Line Items]	'		'
Outstanding borrowings at end of year	$81		$110
Notes Payable Current	'		'
Short-term Debt [Line Items]	'		'
Outstanding borrowings at end of year	81	[1]	110	[1]
Weighted average interest rate on outstanding borrowings at end of year(b)	4.40%	[1],[2]	5.30%	[1],[2]
Approximate maximum month-end outstanding borrowings during year	177	[1]	156	[1]
Approximate average month-end outstanding borrowings during year	$116	[1]	$123	[1]
Weighted average interest rate on approximate average month-end outstanding borrowings during year(b)	4.70%	[1],[2]	5.50%	[1],[2]
[1]	Includes borrowings under both committed credit facilities and uncommitted lines of credit and similar arrangements.
[2]	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_Detail

- Financing Arrangements (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Debt Instrument [Line Items]	'
Committed Credit Facilities, Commitments	$1,188	[1]
Committed Credit Facilities, Borrowings	376	[1]
Committed Credit Facilities, Letter of Credit	37	[1],[2]
Committed Credit Facilities, Available	775	[1]
Tenneco Inc. revolving credit agreement	'
Debt Instrument [Line Items]	'
Committed Credit Facilities, Term	'2017	[1]
Committed Credit Facilities, Commitments	850	[1]
Committed Credit Facilities, Borrowings	58	[1]
Committed Credit Facilities, Letter of Credit	37	[1],[2]
Committed Credit Facilities, Available	755	[1]
Tranche A Term Facility	'
Debt Instrument [Line Items]	'
Committed Credit Facilities, Term	'2017	[1]
Committed Credit Facilities, Commitments	228	[1]
Committed Credit Facilities, Borrowings	228	[1]
Subsidiaries' credit agreements	'
Debt Instrument [Line Items]	'
Committed Credit Facilities, Commitments	110	[1]
Committed Credit Facilities, Borrowings	90	[1]
Committed Credit Facilities, Available	$20	[1]
Subsidiaries' credit agreements | Minimum	'
Debt Instrument [Line Items]	'
Committed Credit Facilities, Term	'2014	[1]
Subsidiaries' credit agreements | Maximum	'
Debt Instrument [Line Items]	'
Committed Credit Facilities, Term	'2026	[1]
[1]	We generally are required to pay commitment fees on the unused portion of the total commitment.
[2]	Letters of credit reduce the available borrowings under the revolving credit agreement.

Financial_Ratios_Under_Senior_

- Financial Ratios Under Senior Credit Facility (Detail)	3 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013
Required	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Leverage Ratio (maximum)	3.5	3.5	3.5	3.5
Interest Coverage Ratio (minimum)	2.55	2.55	2.55	2.55
Actual	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Leverage Ratio (maximum)	1.39	1.86	1.79	1.98
Interest Coverage Ratio (minimum)	9.89	9.09	8.74	8.39

Proforma_Consolidated_Leverage

- Proforma Consolidated Leverage Ratio (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
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

Carrying_and_Estimated_Fair_Va

- Carrying and Estimated Fair Value (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Long-term debt (including current maturities)	$1,021	$1,070
Carrying Amount	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Long-term debt (including current maturities)	1,021	1,070
Asset derivative contracts	0	1
Fair Value	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Long-term debt (including current maturities)	1,089	1,136
Asset derivative contracts	$0	$1

Financial_Instruments_Addition

- Financial Instruments - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Mar. 31, 2011

Dec. 31, 2013

AUSTRALIA

Fair Value, Inputs, Level 1

Fair Value, Inputs, Level 1

Fair Value, Inputs, Level 2

Fair Value, Inputs, Level 2

Fair Value, Inputs, Level 3

Fair Value, Inputs, Level 3

TMEL and Walker Plans

TMEL and Walker Plans

TMEL and Walker Plans

TMEL and Futaba

subsidiary

Agreement

Financial Instruments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of long term debt

'

'

'

$792

$790

$287

$334

$10

$12

'

'

'

'

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

66.00%

'

'

'

'

'

'

'

'

'

'

'

'

Number of performance guarantee agreements

'

'

'

'

'

'

'

'

'

'

'

2

'

Number of group benefit plans under the agreement

'

'

'

'

'

'

'

'

'

'

'

2

'

Maximum amount payable for pension performance guarantees

'

'

'

'

'

'

'

'

'

27

'

'

'

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

'

'

'

'

'

'

'

'

'

10

7

'

'

Maximum amount reimbursable under indemnity agreement

'

'

'

'

'

'

'

'

'

'

'

'

5

Line of credit facility letters of credit outstanding

38

'

'

'

'

'

'

'

'

'

'

'

'

Negotiable financial instruments collected before maturity date and sold at discount

5

6

'

'

'

'

'

'

'

'

'

'

'

Negotiable financial instruments not redeemed and used for vendor payment classified as notes payable

13

12

'

'

'

'

'

'

'

'

'

'

'

Negotiable financial instruments received from OE customer not redeemed

12

8

'

'

'

'

'

'

'

'

'

'

'

Negotiable financial instruments received classified as other current assets

12

8

'

'

'

'

'

'

'

'

'

'

'

Supply chain financing extended payment amount

10

'

'

'

'

'

'

'

'

'

'

'

'

Number of Subsidiaries

'

'

2

'

'

'

'

'

'

'

'

'

'

Restricted cash

'

'

$5

'

'

'

'

'

'

'

'

'

'

Foreign_Exchange_Forward_Contr

- Foreign Exchange Forward Contracts Fair Value on Gross Basis (Detail) (Foreign Exchange Forward, USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Foreign Exchange Forward	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair Value of Derivative Instruments, Asset Derivatives	$0	$1
Fair Value of Derivative Instruments, Liability Derivatives	0	0
Fair Value of Derivative Instruments	$0	$1

Fair_Value_of_Financial_Assets

- Fair Value of Financial Assets on Recurring Basis (Detail) (Fair Value, Inputs, Level 2, Foreign Exchange Forward, Fair Value, Measurements, Recurring, USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Fair Value, Inputs, Level 2 | Foreign Exchange Forward | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Foreign exchange forward contracts	$0	$1

Summarization_for_Foreign_Curr

- Summarization for Foreign Currency Forward Purchase and Sale Contracts (Detail) (Foreign Exchange Forward, USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Long | Australian Dollar	'
Notional Amount in Foreign Currency	$3
Long | British Pounds	'
Notional Amount in Foreign Currency	4
Long | Japanese Yen	'
Notional Amount in Foreign Currency	135
Long | Polish Zloty	'
Notional Amount in Foreign Currency	33
Long | South African Rand	'
Notional Amount in Foreign Currency	144
Long | U.S. Dollars	'
Notional Amount in Foreign Currency	15
Short | European Euro	'
Notional Amount in Foreign Currency	16
Short | Japanese Yen	'
Notional Amount in Foreign Currency	842
Short | U.S. Dollars	'
Notional Amount in Foreign Currency	15
Short | Other	'
Notional Amount in Foreign Currency	$2

Income_before_income_taxes_and

- Income before income taxes and noncontrolling interests (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Income Before Income Taxes And Noncontrolling Interests [Abstract]	'	'	'
U.S. income before income taxes	$150	$166	$55
Foreign income before income taxes	194	157	216
Earnings before income taxes and noncontrolling interests	$344	$323	$271

Comparative_Analysis_of_Compon

- Comparative Analysis of Components of Income Tax Expense (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current	'	'	'
U.S. federal	$25	$0	$0
State and local	4	4	2
Foreign	81	89	91
Total current income tax expenses	110	93	93
Deferred	'	'	'
U.S. federal	-4	-25	0
State and local	2	-20	0
Foreign	14	-29	-5
Total deferred income tax expenses	12	-74	-5
Income tax expense	$122	$19	$88

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
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	$4	$47	'
Valuation allowance	135	118	'
Income tax expense (benefit)	122	19	88
Impact on earnings related to reversal of valuation allowance	'	81	'
Federal net operating loss	37	'	'
Unremitted earnings of foreign subsidiaries	858	'	'
Estimated income tax liability related to unremitted earnings of foreign subsidiaries	159	'	'
Uncertain tax positions that would affect the effective tax rate if recognized	107	101	36
Liability for interest on unrecognized tax benefits	7	5	7
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	4	'	'
United States	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Impact on earnings related to reversal of valuation allowance	'	81	'
Maximum	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Penalties accrued	1	1	1
Liability for penalties on unrecognized tax benefits	2	3	2
Accrued interest related to uncertain tax positions	2	1	2
Spain	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Impact on earnings related to reversal of valuation allowance	$19	'	'

Reconciliation_of_Income_Taxes

- Reconciliation of Income Taxes Computed at Statutory U.S. Federal Income Tax Rate to Income Tax Expense (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Reconciliation Of Income Taxes Computed At Statutory U S Federal Income Tax Rate To Income Tax Expense [Abstract]	'	'	'
Income tax expense computed at the statutory U.S. federal income tax rate	$120	$113	$95
Foreign income taxed at different rates	-21	-21	-14
Taxes on repatriation of dividends	9	8	6
Remeasurement of estimated tax on unremitted earnings	-17	0	0
State and local taxes on income, net of U.S. federal income tax benefit	6	4	2
Changes in valuation allowance for tax loss carryforwards and credits	27	-91	-11
Foreign tax holidays	-5	-5	-4
Investment and R&D tax credits	-8	-1	-4
Foreign earnings subject to U.S. federal income tax	5	23	6
Adjustment of prior years taxes	-1	-5	0
Impact of foreign tax law changes	-3	-1	0
Tax contingencies	6	-6	3
Goodwill impairment	0	0	3
Other	4	1	6
Income tax expense	$122	$19	$88

Components_of_Our_Net_Deferred

- Components of Our Net Deferred Tax Assets (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Disclosure Components Of Our Net Deferred Tax Assets [Abstract]	'	'
U.S. federal	$0	$0
State	23	23
Foreign	78	63
Tax credit benefits	88	51
Postretirement benefits other than pensions	43	50
Pensions	36	87
Bad debts	1	1
Sales allowances	6	6
Payroll and other accruals	132	119
Valuation allowance	-135	-118
Total deferred tax assets	272	282
Tax over book depreciation	56	57
Other	51	70
Total deferred tax liabilities	107	127
Net deferred tax assets	$165	$155

Reconciliation_of_Deferred_Tax

- Reconciliation of Deferred Taxes to Deferred Taxes Shown In Balance Sheet (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Balance Sheet:	'	'
Current portion - deferred tax asset	$71	$72
Non-current portion - deferred tax asset	125	116
Current portion - deferred tax liability shown in other current liabilities	-3	-6
Non-current portion - deferred tax liability	-28	-27
Net deferred tax assets	$165	$155

Reconciliation_of_our_Uncertai

- Reconciliation of our Uncertain Tax Positions (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Uncertain tax positions -	'	'	'
Balance January 1	$107	$119	$111
Gross increases in tax positions in current period	15	13	19
Gross increases in tax positions in prior period	0	1	3
Gross decreases in tax positions in prior period	-1	-12	-10
Gross decreases - settlements	0	-5	0
Gross decreases - statute of limitations expired	-6	-9	-4
Balance December 31	$115	$107	$119

Tax_Years_Open_to_Examination_

- Tax Years Open to Examination in Primary Jurisdictions (Detail)	12 Months Ended
	Dec. 31, 2013
United States - due to NOL	'
Income Tax Contingency [Line Items]	'
Tax years open to examination in primary jurisdictions	'2000
China	'
Income Tax Contingency [Line Items]	'
Tax years open to examination in primary jurisdictions	'2003
Spain	'
Income Tax Contingency [Line Items]	'
Tax years open to examination in primary jurisdictions	'2003
Canada	'
Income Tax Contingency [Line Items]	'
Tax years open to examination in primary jurisdictions	'2007
Brazil	'
Income Tax Contingency [Line Items]	'
Tax years open to examination in primary jurisdictions	'2008
Mexico	'
Income Tax Contingency [Line Items]	'
Tax years open to examination in primary jurisdictions	'2008
Belgium	'
Income Tax Contingency [Line Items]	'
Tax years open to examination in primary jurisdictions	'2011
Germany	'
Income Tax Contingency [Line Items]	'
Tax years open to examination in primary jurisdictions	'2011
United Kingdom	'
Income Tax Contingency [Line Items]	'
Tax years open to examination in primary jurisdictions	'2012

Common_Stock_Additional_Inform

Common Stock - Additional Information (Detail) (USD $)

1 Months Ended

3 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

12 Months Ended

1 Months Ended

In Millions, except Share data, unless otherwise specified

Jan. 31, 2013

Dec. 31, 1999

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jan. 31, 2012

Jan. 31, 2014

Dec. 31, 1999

Dec. 31, 1999

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 1999

Mar. 12, 2002

Dec. 31, 2013

15-May-13

13-May-09

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jan. 31, 2013

Jan. 31, 2013

Future Stock Repurchases Program

Minimum

Maximum

Stock Option

Stock Option

Stock Option

Restricted stock, restricted stock units, long term performance units, SARs

Restricted stock, restricted stock units, long term performance units, SARs

Restricted stock, restricted stock units, long term performance units, SARs

Restricted Stock

Supplemental Stock Ownership Plan

2002 Long-Term Incentive Plan

2006 Long-Term Incentive Plan

2006 Long-Term Incentive Plan

2006 Long-Term Incentive Plan

United States

Less - Common Stock Held as Treasury Stock, at Cost

Less - Common Stock Held as Treasury Stock, at Cost

Less - Common Stock Held as Treasury Stock, at Cost

Less - Common Stock Held as Treasury Stock, at Cost

Less - Common Stock Held as Treasury Stock, at Cost

Stock Option

Open Market [Member]

Tenneco Retirement Plan for Salaried Employees [Member]

Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Authorized common stock available for issuance under the plan

'

'

135,000,000

'

'

'

'

135,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,000,000

'

3,500,000

2,300,000

'

'

'

'

'

'

Common stock, par value

'

'

$0.01

'

'

'

'

$0.01

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common stock, shares issued

'

'

63,714,728

'

'

'

'

63,714,728

62,789,382

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Treasury stock shares

'

'

2,844,692

'

'

'

'

2,844,692

2,294,692

1,694,692

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Authorized treasury shares available for purchase under the supplemental stock ownership plan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,100,000

'

'

'

'

'

'

'

'

'

'

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

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,979,918

'

'

'

'

'

'

'

'

Term for stock options

'

'3 years

'

'

'

'

'

'4 years 10 months 24 days

'4 years 8 months 12 days

'4 years 9 months 18 days

'

'

'7 years

'20 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restriction period for restricted common stock

'

'3 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Compensation expense related to nonqualified stock options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$6

$5

$3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Decrease in basic earnings per share

'

'

'

'

'

'

'

($0.10)

($0.09)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Decrease in diluted earnings per share

'

'

'

'

'

'

'

($0.09)

($0.08)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Decrease in basic and diluted earnings per share

'

'

'

'

'

'

'

'

'

($0.05)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized compensation costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6

'

'

13

'

'

6

'

'

'

'

'

'

'

'

'

'

'

Unrecognized compensation costs, weighted average period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'1 year 2 months 12 days

'

'

'1 year 2 months 12 days

'

'

'1 year 8 months 12 days

'

'

'

'

'

'

'

'

'

'

'

Share based compensation

'

'

'

'

'

'

'

13

11

8

'

'

'

'

'

'

'

17

16

11

'

'

'

'

'

'

'

'

'

'

'

'

Cash received from stock option exercises

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15

7

6

'

'

'

'

'

'

'

'

'

24

'

'

'

'

'

Unrecorded tax benefit from stock options exercised

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6

10

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average grant-date fair value of options granted

'

'

'

'

'

'

'

$19.86

$17.49

$26.11

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number

'

'

1,397,102

'

'

'

'

1,397,102

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value

'

'

51

'

'

'

'

51

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price

'

'

$17.82

'

'

'

'

$17.82

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term

'

'

'

'

'

'

'

'4 years 8 months 12 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total Intrinsic value of options exercised

'

'

5

0

7

1

'

19

10

13

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total fair value of shares vested

'

'

'

'

'

'

'

5

4

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average grant-date fair value of restricted stock granted

'

'

'

$46.91

$38.90

$36.28

'

$36.40

$30.06

$45.38

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total fair value of restricted shares vested

'

'

'

'

'

'

'

6

5

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares authorized to be repurchased

550,000

'

'

'

'

'

'

'

'

'

'

400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock repurchased during period

'

'

'

'

'

'

600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

550,000

600,000

400,000

450,000

100,000

Payments for Repurchase of Common Stock

'

'

'

'

'

'

18

27

18

16

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2012 authorized outstanding common stock for repurchase over a 12 month period

'

'

'

'

'

'

'

'

'

'

600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Average price of share repurchase program

'

'

'

'

'

'

$29.22

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock repurchased during the period

$27

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$27

$18

$16

'

'

Treasury stock average cost per share

$49.33

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Assumptions_Used_for_Calculati

Assumptions Used for Calculating Fair Values of Stock Option Awards (Detail) (USD $)	1 Months Ended	12 Months Ended
	Dec. 31, 1999	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Options Granted	'	'	'	'
Weighted average grant date fair value, per share	'	$19.84	$17.35	$26.13
Weighted average assumptions used:	'	'	'	'
Expected volatility	'	66.40%	73.50%	70.10%
Expected lives	'3 years	'4 years 10 months 24 days	'4 years 8 months 12 days	'4 years 9 months 18 days
Risk-free interest rates	'	0.70%	0.80%	1.80%
Dividends yields	'	0.00%	0.00%	0.00%

Stock_Options_Status_and_Activ

Stock Options Status and Activity (Detail) (USD $)	3 Months Ended				12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'	'	'	'	'	'	'
Shares Under Option Outstanding Beginning Balance	2,113,889	2,260,743	2,654,247	2,447,475	2,447,475	'	'
Shares Under Option, Granted	0	1,182	388	311,539	'	'	'
Share Under Option, Canceled	0	'	'	-7,225	'	'	'
Shares Under Option, Forfeited	0	-283	-450	-14,920	'	'	'
Shares Under Option, Exercised	-130,316	-147,753	-393,442	-82,622	'	'	'
Shares Under Option Outstanding Ending Balance	1,983,573	2,113,889	2,260,743	2,654,247	1,983,573	2,447,475	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]	'	'	'	'	'	'	'
Weighted Average Exercise Prices, Outstanding, Beginning Balance	$22.52	$22.06	$22.12	$20.14	$20.14	'	'
Weighted Average Exercise Prices, Granted	$0	$35.41	$38.90	$36.29	'	'	'
Weighted Average Exercise Price, Canceled	$0	'	'	$11.73	'	'	'
Weighted Average Exercise Prices, Forfeited	$0	$8.68	$21.81	$14.59	'	'	'
Weighted Average Exercise Prices, Exercised	$16.23	$15.42	$22.53	$19.96	'	'	'
Weighted Average Exercise Prices, Outstanding, Ending Balance	$22.93	$22.52	$22.06	$22.12	$22.93	$20.14	'
Weighted Average Remaining Life in Years	'4 years 6 months	'4 years 7 months 6 days	'4 years 8 months 12 days	'4 years 3 months 18 days	'	'4 years 1 month 6 days	'
Aggregate Intrinsic Value, Outstanding, Beginning Balance	$56	$44	$41	$29	$29	'	'
Aggregate Intrinsic Value, Exercised	5	0	7	1	19	10	13
Aggregate Intrinsic Value, Outstanding, Ending Balance	$62	$56	$44	$41	$62	$29	'

Nonvested_Restricted_Shares_De

Nonvested Restricted Shares (Detail) (USD $)	3 Months Ended				12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
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	$34.90	$34.86	$34.88	$31.69	$31.69	'	'
Granted	'	$46.91	$38.90	$36.28	$36.40	$30.06	$45.38
Vested	$34.93	$35.58	$35.40	$29.54	'	'	'
Forfeited	'	$0	$0	$0	'	'	'
Nonvested, Weighted Average Grant Date Fair Value, End of Period	$34.90	$34.90	$34.86	$34.88	$34.90	$31.69	'
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	370,394	384,426	399,489	348,918	348,918	'	'
Nonvested Restricted Shares, Granted	'	2,223	226	204,731	'	'	'
Restricted Shares, Vested	-2,126	-16,255	-15,289	-154,160	'	'	'
Nonvested Restricted Shares, Forfeited	'	0	0	0	'	'	'
Nonvested Restricted Shares, Ending Balance	368,268	370,394	384,426	399,489	368,268	'	'

Preferred_Stock_Additional_Inf

Preferred Stock - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Preferred Stock [Line Items]	'	'
Authorized shares	50,000,000	50,000,000
Par value	$0.01	$0.01
Outstanding shares	0	0

Pension_Plans_Postretirement_a2

Pension Plans Postretirement and Other Employee Benefits - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Jan. 02, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	retirement_plan
Pension and Other Postretirement Benefits Disclosure [Line Items]	'	'	'	'
Pension benefit obligations	'	$863	'	'
Pension benefit obligations with funding requirements	'	779	'	'
Pension Fund assets available to fund pension benefit obligations	'	726	'	'
Pension benefit obligations with no funding requirements	'	84	'	'
Acceptable tolerance limit of investment allocations for securities	'	5.00%	'	'
Employer contributions	'	57	'	'
Expected contributions in 2013	'	47	'	'
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	'	'
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	'	7.00%	7.50%	8.00%
Defined Benefit Plan Ultimate Health Care Cost Year Five	'	4.50%	'	'
Retirement Savings 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	'	2.00%	'	'
Expense recorded relating to employee matching contribution	'	23	21	18
Postretirement	'	'	'	'
Pension and Other Postretirement Benefits Disclosure [Line Items]	'	'	'	'
Employer contributions	'	8	10	'
One percentage point increase effect on postretirement benefit obligation	'	8	'	'
One percentage point decrease effect on postretirement benefit obligation	'	7	'	'
Postretirement | Maximum	'	'	'	'
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	'	'
Pension Plans, Defined Benefit	'	'	'	'
Pension and Other Postretirement Benefits Disclosure [Line Items]	'	'	'	'
Expected contributions in 2013	'	$8	'	'
Equity Securities	'	'	'	'
Pension and Other Postretirement Benefits Disclosure [Line Items]	'	'	'	'
Targeted pension plan allocations in debt securities	'	70.00%	'	'
Debt Securities	'	'	'	'
Pension and Other Postretirement Benefits Disclosure [Line Items]	'	'	'	'
Targeted pension plan allocations in debt securities	'	30.00%	'	'

Pension_Plan_Assets_Classes_of

Pension Plan Assets Classes of Securities (Detail)	Dec. 31, 2013	Dec. 31, 2012
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	71.00%	70.00%
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	29.00%	30.00%
United States Pension Plans of US Entity, Defined Benefits | All Other	'	'
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]	'	'
Debt Securities	'	0.00%
Foreign | Equity Securities	'	'
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]	'	'
Debt Securities	62.00%	59.00%
Foreign | Debt Securities	'	'
Schedule of Pension and Other Postretirment Plan Assets by Fair Value [Line Items]	'	'
Debt Securities	31.00%	33.00%
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	5.00%	6.00%

Plan_Assets_Using_Fair_Value_H

Plan Assets Using Fair Value Hierarchy (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	$726	'
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	41	29
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	41	29
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	'	0
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	306	246
United States Pension Plans of US Entity, Defined Benefits | 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	143	117
United States Pension Plans of US Entity, Defined Benefits | Fair Value, Inputs, Level 2 | U.S. Small Cap	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	27	20
United States Pension Plans of US Entity, Defined Benefits | 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	27	20
United States Pension Plans of US Entity, Defined Benefits | 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	8	7
United States Pension Plans of US Entity, Defined Benefits | Fair Value, Inputs, Level 2 | U.S. treasuries/government bond	'	'
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 2 | U.S. corporate bonds	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	5	4
United States Pension Plans of US Entity, Defined Benefits | Fair Value, Inputs, Level 2 | U.S. other fixed income	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	96	78
Foreign | Fair Value, Inputs, Level 1	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	175	153
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	31	26
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	4	2
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	57	48
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	20	13
Foreign | Fair Value, Inputs, Level 1 | Non-U.S. small 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 | Emerging Markets	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	0	2
Foreign | Fair Value, Inputs, Level 1 | U.S. mortgage backed securities	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	'	0
Foreign | Fair Value, Inputs, Level 1 | U.S. asset backed securities	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	'	0
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	35	36
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	18	18
Foreign | Fair Value, Inputs, Level 1 | Non-U.S. municipal obligations	'	'
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. other fixed income	'	'
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. 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	6	4
Foreign | Fair Value, Inputs, Level 2	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	196	171
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	21	15
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	4	5
Foreign | Fair Value, Inputs, Level 2 | U.S. Small Cap	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	'	0
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	71	63
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	19	16
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	7	4
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	4	1
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	4	'
Foreign | Fair Value, Inputs, Level 2 | U.S. mortgage backed securities	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	'	0
Foreign | Fair Value, Inputs, Level 2 | U.S. asset backed securities	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	'	0
Foreign | Fair Value, Inputs, Level 2 | U.S. other fixed income	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	'	0
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	25	24
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	18	24
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	4	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	3	3
Foreign | Fair Value, Inputs, Level 2 | Non-U.S. other fixed income	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	2	0
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	9	8
Foreign | Fair Value, Inputs, Level 3	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Defined Benefit Plan, Fair Value of Plan Assets	8	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	$8	$8

Changes_in_Fair_Value_of_Level

Changes in Fair Value of Level 3 Assets (Detail) (Foreign, Fair Value, Inputs, Level 3, USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Foreign | Fair Value, Inputs, Level 3	'	'
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items]	'	'
Balance at December 31 of the previous year	$8	$6
Relating to assets still held at the reporting date	0	2
Ending Balance at December 31	$8	$8

Significant_Concentrations_of_

Significant Concentrations of Risk (Detail) (Fair Value, Inputs, Level 1, USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Inputs, Level 1	'	'
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]	'	'
Investment in Tenneco stock	$41	$29
Investment in Tenneco stock as a percentage of total plan assets	5.60%	4.70%

Summary_of_Amount_Recognised_i

Summary of Amount Recognised in Balance Sheets for Pension Plans and Postretirement Benefit Plan (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Interest cost	$5	$6	$7
Employer contributions	57	'	'
Fair value at December 31	726	'	'
Actuarial loss	4	5	4
Prior service cost	-6	'	'
Defined Benefit Plan, Assets for Plan Benefits, Noncurrent	0	0	'
Noncurrent liabilities	-249	-407	'
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	131	'	'
Interest cost	19	20	20
Benefits paid	-8	-9	'
Benefit obligation at December 31	'	131	'
Actuarial loss	9	7	4
Prior service cost	1	1	'
Foreign	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Interest cost	17	18	19
Actuarial loss	10	7	5
Prior service cost	7	8	'
Postretirement	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Benefit obligation at December 31 of the previous year	131	140	'
Service cost	'	0	'
Interest cost	5	6	'
Actuarial (gain)/loss	-16	-6	'
Benefits paid	-8	'	'
Benefit obligation at December 31	112	131	'
Employer contributions	8	10	'
Prescription drug subsidy received	'	-1	'
Unfunded status at December 31	-112	-131	'
Actuarial loss	32	52	'
Prior service cost	-16	-22	'
Net amount recognized at December 31	-96	-101	'
Current liabilities	-8	-8	'
Noncurrent liabilities	-104	-123	'
Net amount recognized	-112	-131	'
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	461	414	'
Service cost	1	1	'
Interest cost	19	20	'
Actuarial (gain)/loss	-41	44	'
Benefits paid	-19	-18	'
Benefit obligation at December 31	421	461	'
Fair value at December 31 of the previous year	275	239	'
Actual return on plan assets	60	28	'
Employer contributions	31	26	'
Fair value at December 31	347	275	'
Unfunded status at December 31	-74	-186	'
Actuarial loss	190	278	'
Prior service cost	1	1	'
Net amount recognized at December 31	117	93	'
Current liabilities	-6	-3	'
Noncurrent liabilities	-68	-183	'
Net amount recognized	-74	-186	'
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	431	370	'
Currency rate conversion	-2	13	'
Settlement	-1	-4	'
Curtailment	-1	'	'
Service cost	9	7	'
Interest cost	17	18	'
Administrative expenses/taxes paid	-2	-1	'
Plan amendments	1	'	'
Actuarial (gain)/loss	6	42	'
Benefits paid	-18	-16	'
Participants' contributions	2	2	'
Benefit obligation at December 31	442	431	'
Fair value at December 31 of the previous year	332	290	'
Currency rate conversion	-3	11	'
Settlement	-1	-4	'
Actual return on plan assets	43	27	'
Employer contributions	26	22	'
Participants' contributions	2	2	'
Fair value at December 31	379	332	'
Unfunded status at December 31	-62	-99	'
Actuarial loss	137	168	'
Prior service cost	7	8	'
Net amount recognized at December 31	82	77	'
Defined Benefit Plan, Assets for Plan Benefits, Noncurrent	11	'	'
Current liabilities	-2	-2	'
Noncurrent liabilities	-71	-97	'
Net amount recognized	($62)	($99)	'

Components_of_Net_Periodic_Ben

Components of Net Periodic Benefit Cost (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Service cost - benefits earned during the year	$0	$1	$1
Interest cost	5	6	7
Net amortization:	'	'	'
Actuarial loss	4	5	4
Prior service cost	-6	-6	-6
Net pension costs	3	6	6
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	19	20	20
Expected return on plan assets	-22	-22	-23
Settlement loss	'	'	0
Net amortization:	'	'	'
Actuarial loss	9	7	4
Net pension costs	7	6	2
Foreign	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Service cost - benefits earned during the year	9	7	6
Interest cost	17	18	19
Expected return on plan assets	-20	-20	-20
Settlement loss	1	1	1
Net amortization:	'	'	'
Actuarial loss	10	7	5
Prior service cost	1	2	2
Net pension costs	$18	$15	$13

Amounts_to_be_Reflected_as_Com

Amounts to be Reflected as Component of Net Periodic Benefit Cost (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'
Net actuarial loss	$2	'
Prior service cost	-6	'
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	190	278
Prior service cost	1	1
Total	191	279
Net actuarial loss	7	'
Prior service cost	0	'
Total expected amounts that will be amortized from accumulated other comprehensive income in 2013	7	'
Foreign	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'
Net actuarial loss	137	168
Prior service cost	7	8
Total	144	176
Net actuarial loss	7	'
Prior service cost	1	'
Total expected amounts that will be amortized from accumulated other comprehensive income in 2013	$8	'

Amounts_Recognized_for_Pension

Amounts Recognized for Pension and Postretirement Benefits in Other Comprehensive Income (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Change in total actuarial loss, Before-tax amount	$113	($66)	'
Amortization of prior service cost included in net periodic pension and postretirement cost, Before-tax amount	-5	-4	'
Amortization of actuarial loss included in net periodic pension and postretirement cost, Before-tax amount	23	20	'
Other comprehensive income - pension benefits, Before-tax amount	131	-50	'
Change in total actuarial loss, Tax Benefit	-41	22	'
Amortization of prior service cost included in net periodic pension and postretirement cost, Tax Benefit	2	2	'
Amortization of actuarial loss included in net periodic pension and postretirement cost, Tax Benefit	-7	-6	'
Other comprehensive - pension benefits, Tax Benefit	-46	18	'
Change in total actuarial loss, Net-of-tax amount	72	-44	'
Amortization of prior service cost included in net periodic pension and postretirement cost, Net-of-tax Amount	-3	-2	'
Amortization of actuarial loss included in net periodic pension and postretirement cost, Net-of-tax Amount	16	14	'
Other comprehensive income - pension benefits, Net-of-tax Amount	$85	($32)	($102)

Projected_Benefit_Obligation_A

Projected Benefit Obligation Accumulated Benefit Obligation and Fair Value of Plan Assets for All Pension Plans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
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	$421	$461
Accumulated benefit obligation	421	461
Fair value of plan assets	347	275
Foreign	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'
Projected benefit obligation	289	400
Accumulated benefit obligation	286	389
Fair value of plan assets	$218	$301

Estimated_Pension_Plan_Benefit

Estimated Pension Plan Benefit Payments (Detail) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
United States Pension Plans of US Entity, Defined Benefits	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'
2014	$24
2015	21
2016	21
2017	28
2018	22
2019-2022	131
Foreign	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'
2014	17
2015	17
2016	19
2017	18
2018	19
2019-2022	$140

Weighted_Average_Assumptions_U

Weighted Average Assumptions Used to Determine Benefit Obligations (Detail)	Dec. 31, 2013	Dec. 31, 2012
Weighted-average assumptions used to determine benefit obligations	'	'
Discount rate	4.80%	4.10%
United States Pension Plans of US Entity, Defined Benefits	'	'
Weighted-average assumptions used to determine benefit obligations	'	'
Discount rate	4.80%	4.10%
Foreign	'	'
Weighted-average assumptions used to determine benefit obligations	'	'
Discount rate	4.30%	4.20%
Rate of compensation increase	3.30%	3.40%

WeightedAverage_Assumptions_us

Weighted-Average Assumptions used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Weighted-average assumptions used to determine net periodic benefit cost	'	'	'
Discount rate	4.10%	4.80%	5.60%
United States Pension Plans of US Entity, Defined Benefits	'	'	'
Weighted-average assumptions used to determine net periodic benefit cost	'	'	'
Discount rate	4.10%	4.80%	5.60%
Expected long-term return on plan assets	7.80%	8.30%	8.30%
Foreign	'	'	'
Weighted-average assumptions used to determine net periodic benefit cost	'	'	'
Discount rate	4.20%	4.90%	5.40%
Expected long-term return on plan assets	6.20%	6.30%	6.40%
Rate of compensation increase	3.40%	3.50%	3.50%

Amounts_to_be_Reflected_as_Com1

Amounts to be Reflected as Component of Net Periodic Cost (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]	'
Net actuarial loss	$2
Prior service cost	-6
Total	($4)

Estimated_Subsidies_Under_Medi

Estimated Subsidies Under Medicare Prescription Drug Improvement and Modernization Act (Detail) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Defined Benefit Plan Disclosure [Line Items]	'
2013	$8
2014	8
2015	8
2016	8
2017	8
2018-2022	$38

Assumptions_Used_to_Determine_

Assumptions Used to Determine Postretirement Cost (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Discount rate	4.80%	4.10%	'
Discount rate	4.10%	4.80%	5.60%

Segment_and_Geographic_Area_In2

Segment and Geographic Area Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013
	operating_segment
	product_segment
	geographic_segment
Segment Reporting [Line Items]	'
Number of Reportable Segments	3
Number of Product Segments	2
Number of Operating Segments	6

Segment_Information_Detail

Segment Information (Detail) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

$7,964

[1]

$7,363

[1]

$7,205

[1]

Earnings before interest expense, income taxes, and noncontrolling interests

118

72

141

93

84

111

137

96

424

428

379

Total assets

3,830

'

'

'

3,608

'

'

'

3,830

3,608

3,337

Other

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

'

'

0

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

-85

-67

-58

Total assets

0

'

'

'

0

'

'

'

0

0

'

Reclass and Elims

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

-203

-201

-194

Total assets

36

'

'

'

24

'

'

'

36

24

25

North America | Clean Air Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

2,659

2,506

2,288

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

229

202

172

Total assets

1,030

'

'

'

1,029

'

'

'

1,030

1,029

889

North America | Ride Performance Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

1,255

1,213

1,126

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

124

122

76

Total assets

628

'

'

'

593

'

'

'

628

593

530

North America | Intersegment Revenues | Clean Air Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

7

6

3

North America | Intersegment Revenues | Ride Performance Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

10

10

9

Europe, South America, and India | Clean Air Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

1,933

1,726

1,849

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

57

54

79

Total assets

827

'

'

'

725

'

'

'

827

725

719

Europe, South America, and India | Ride Performance Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

1,046

1,041

1,164

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

-7

41

69

Total assets

552

'

'

'

600

'

'

'

552

600

607

Europe, South America, and India | Intersegment Revenues | Clean Air Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

112

101

104

Europe, South America, and India | Intersegment Revenues | Ride Performance Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

41

53

52

Asia Pacific | Clean Air Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

852

694

624

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

84

71

47

Total assets

544

'

'

'

435

'

'

'

544

435

386

Asia Pacific | Ride Performance Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

219

183

154

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

22

5

-6

Total assets

213

'

'

'

202

'

'

'

213

202

181

Asia Pacific | Intersegment Revenues | Clean Air Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

1

1

'

Asia Pacific | Intersegment Revenues | Ride Performance Division

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues from external customers

'

'

'

'

'

'

'

'

$32

$30

$26

[1]

Revenues are attributed to countries based on location of the shipper.

Revenue_from_External_Customer

Revenue from External Customers table (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Segment Reporting [Line Items]	'		'		'
Revenues from external customers	$7,964	[1]	$7,363	[1]	$7,205	[1]
Clean Air Systems And Products	'		'		'
Segment Reporting [Line Items]	'		'		'
Revenues from external customers	5,444		4,926		4,761
Clean Air Systems And Products | Aftermarket	'		'		'
Segment Reporting [Line Items]	'		'		'
Revenues from external customers	327		318		351
Clean Air Systems And Products | Original Equipment	'		'		'
Segment Reporting [Line Items]	'		'		'
Revenues from external customers	5,117		4,608		4,410
Clean Air Systems And Products | Original Equipment | OE Value-add	'		'		'
Segment Reporting [Line Items]	'		'		'
Revenues from external customers	3,282		2,948		2,732
Clean Air Systems And Products | Original Equipment | OE Substrate	'		'		'
Segment Reporting [Line Items]	'		'		'
Revenues from external customers	1,835		1,660		1,678
Ride Control Systems And Products	'		'		'
Segment Reporting [Line Items]	'		'		'
Revenues from external customers	2,520		2,437		2,444
Ride Control Systems And Products | Aftermarket	'		'		'
Segment Reporting [Line Items]	'		'		'
Revenues from external customers	953		944		944
Ride Control Systems And Products | Original Equipment	'		'		'
Segment Reporting [Line Items]	'		'		'
Revenues from external customers	$1,567		$1,493		$1,500
[1]	Revenues are attributed to countries based on location of the shipper.

Revenue_Percent_by_Major_Custo

Revenue Percent by Major Customers (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
General Motors	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Customer accounted for ten percent or more of net sales	15.00%	17.00%	19.00%
Ford	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Customer accounted for ten percent or more of net sales	14.00%	15.00%	15.00%

Geographic_Information_Table_D

Geographic Information Table (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Schedule Of Geographical Information [Line Items]	'		'		'
Revenues from external customers	$7,964	[1]	$7,363	[1]	$7,205	[1]
Long-lived assets	1,316	[2]	1,261	[2]	1,160	[2]
Total assets	3,830		3,608		3,337
United States	'		'		'
Schedule Of Geographical Information [Line Items]	'		'		'
Revenues from external customers	3,144	[1]	2,975	[1]	2,795	[1]
Long-lived assets	448	[2]	429	[2]	359	[2]
Total assets	1,552		1,521		1,280
Germany	'		'		'
Schedule Of Geographical Information [Line Items]	'		'		'
Revenues from external customers	941	[1]	817	[1]	826	[1]
Long-lived assets	120	[2]	115	[2]	110	[2]
Total assets	358		344		347
Canada	'		'		'
Schedule Of Geographical Information [Line Items]	'		'		'
Revenues from external customers	387	[1]	389	[1]	343	[1]
Long-lived assets	59	[2]	57	[2]	57	[2]
Total assets	182		168		163
China	'		'		'
Schedule Of Geographical Information [Line Items]	'		'		'
Revenues from external customers	875	[1]	661	[1]	567	[1]
Long-lived assets	158	[2]	139	[2]	104	[2]
Total assets	602		448		387
Other Foreign	'		'		'
Schedule Of Geographical Information [Line Items]	'		'		'
Revenues from external customers	2,617	[1],[3]	2,521	[1],[3]	2,674	[1],[3]
Long-lived assets	531	[2],[3]	521	[2],[3]	530	[2],[3]
Total assets	1,326	[3]	1,307	[3]	1,251	[3]
Reclass & Elims	'		'		'
Schedule Of Geographical Information [Line Items]	'		'		'
Total assets	($190)		($180)		($91)
[1]	Revenues are attributed to countries based on location of the shipper.
[2]	Long-lived assets include all long-term assets except goodwill, intangibles and deferred tax assets.
[3]	Revenues from external customers and long-lived assets for individual foreign countries other than Germany, Canada, and China are not material.

Commitments_and_Contingencies_1

Commitments and Contingencies - Additional Information (Detail) (USD $)	3 Months Ended			12 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
				LegalMatter
				case
				defendent
				State
Commitment And Contingencies [Line Items]	'	'	'	'	'	'
Estimate of authorized expenditures required to complete facilities and projects	'	'	'	$100	'	'
Operating Leases, 2014	'	'	'	40	'	'
Operating Leases, 2015	'	'	'	30	'	'
Operating Leases, 2016	'	'	'	21	'	'
Operating Leases, 2017	'	'	'	15	'	'
Operating Leases, 2018	'	'	'	11	'	'
Operating Leases for subsequent years	'	'	'	25	'	'
Total rental expense	'	'	'	58	55	52
Environmental remediation accrual, discounted basis	'	'	'	15	'	'
Portion of environmental remediation costs recorded in other current liabilities	'	'	'	3	'	'
Portion of environmental remediation costs recorded in deferred credits and other liabilities	'	'	'	12	'	'
Weighted average discount rate	'	'	'	2.80%	'	'
Environmental remediation accrual, undiscounted basis	'	'	'	19	'	'
Expected payments of environmental remediation costs, 2014	'	'	'	3	'	'
Expected payments of environmental remediation costs, 2015	'	'	'	1	'	'
Expected payments of environmental remediation costs, 2016	'	'	'	1	'	'
Expected payments of environmental remediation costs, 2017	'	'	'	1	'	'
Expected payments of environmental remediation costs, 2018	'	'	'	1	'	'
Expected payments of environmental remediation costs, thereafter	'	'	'	12	'	'
Number of states for which we are subject to an audit with respect to payment of unclaimed property	'	'	'	11	'	'
Number of years subject to audit with respect to payment of unclaimed property	'	'	'	'30 years	'	'
Number of complaints filed alleging exposure to asbestos from our product categories	'	'	'	20,000	'	'
Current docket of active and inactive cases nationwide relating to alleged exposure to asbestos from our product categories	'	'	'	500	'	'
Number of defendants in many asbestos related cases	'	'	'	100	'	'
Premium freight and overtime costs incurred	2	2	2	'	3	'
Less than	'	'	'	'	'	'
Commitment And Contingencies [Line Items]	'	'	'	'	'	'
Capital Lease, 2014 (less than $1 million)	'	'	'	1	'	'
Capital Lease, 2015 (less than $1 million)	'	'	'	1	'	'
Capital Lease, 2016 (less than $1 million)	'	'	'	1	'	'
Capital Lease, 2017 (less than $1 million)	'	'	'	1	'	'
Capital Lease, 2018 (less than $1 million)	'	'	'	$1	'	'

Warranty_Accrual_Table_Detail

Warranty Accrual Table (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Product Warranty [Line Items]	'	'	'
Beginning Balance	$23	$26	$33
Accruals related to product warranties	20	15	11
Reductions for payments made	-19	-18	-18
Ending Balance	$24	$23	$26

Supplemental_Guarantor_Condens2

Supplemental Guarantor Condensed Consolidating Financial Statements - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013
Ownership percentage of existing and future material domestic owned subsidiaries	100.00%

Statement_of_Comprehensive_Inc

Statement of Comprehensive Income Loss (Detail) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Sep. 30, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Net sales and operating revenues —

'

'

'

'

'

'

'

'

'

'

'

'

External

'

'

'

'

'

'

'

'

'

$7,964

$7,363

$7,205

Net sales and operating revenues

2,031

1,963

2,067

1,903

1,753

1,778

1,920

1,912

'

7,964

7,363

7,205

Costs and expenses

'

'

'

'

'

'

'

'

'

'

'

'

Cost of sales (exclusive of depreciation and amortization shown below)

1,703

1,691

1,736

1,604

1,474

1,494

1,595

1,607

'

6,734

6,170

6,037

Goodwill impairment charge

'

'

'

'

'

'

'

'

11

0

0

11

Engineering, research, and development

'

'

'

'

'

'

'

'

'

144

126

133

Selling, general, and administrative

'

'

'

'

'

'

'

'

'

453

427

428

Depreciation and amortization of other intangibles

'

'

'

'

'

'

'

'

'

205

205

207

Costs and expenses

'

'

'

'

'

'

'

'

'

7,536

6,928

6,816

Other income (expense)

'

'

'

'

'

'

'

'

'

'

'

'

Loss on sale of receivables

'

'

'

'

'

'

'

'

'

-4

-4

-5

Other income (expense)

'

'

'

'

'

'

'

'

'

0

-3

-5

Total other income (expense)

'

'

'

'

'

'

'

'

'

-4

-7

-10

Earnings before interest expense, income taxes, and noncontrolling interests

118

72

141

93

84

111

137

96

'

424

428

379

Interest expense —

'

'

'

'

'

'

'

'

'

'

'

'

External (net of interest capitalized)

'

'

'

'

'

'

'

'

'

80

105

108

Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies

'

'

'

'

'

'

'

'

'

344

323

271

Income tax expense

'

'

'

'

'

'

'

'

'

122

19

88

Net income

'

'

'

'

'

'

'

'

'

222

304

183

Less: Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

'

39

29

26

Net income (loss) attributable to Tenneco Inc.

54

12

63

54

33

125

87

30

'

183

275

157

Comprehensive income (loss) attributable to Tenneco Inc.

'

'

'

'

'

'

'

'

'

231

249

17

Guarantor Subsidiaries

'

'

'

'

'

'

'

'

'

'

'

'

Net sales and operating revenues —

'

'

'

'

'

'

'

'

'

'

'

'

External

'

'

'

'

'

'

'

'

'

3,498

3,331

3,103

Affiliated companies

'

'

'

'

'

'

'

'

'

350

182

162

Net sales and operating revenues

'

'

'

'

'

'

'

'

'

3,848

3,513

3,265

Costs and expenses

'

'

'

'

'

'

'

'

'

'

'

'

Cost of sales (exclusive of depreciation and amortization shown below)

'

'

'

'

'

'

'

'

'

3,103

3,056

2,764

Engineering, research, and development

'

'

'

'

'

'

'

'

'

66

57

57

Selling, general, and administrative

'

'

'

'

'

'

'

'

'

187

198

144

Depreciation and amortization of other intangibles

'

'

'

'

'

'

'

'

'

78

72

74

Costs and expenses

'

'

'

'

'

'

'

'

'

3,434

3,383

3,039

Other income (expense)

'

'

'

'

'

'

'

'

'

'

'

'

Other income (expense)

'

'

'

'

'

'

'

'

'

-1

115

80

Total other income (expense)

'

'

'

'

'

'

'

'

'

-1

115

80

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

'

413

245

306

Interest expense —

'

'

'

'

'

'

'

'

'

'

'

'

External (net of interest capitalized)

'

'

'

'

'

'

'

'

'

-2

0

-1

Affiliated companies (net of interest income)

'

'

'

'

'

'

'

'

'

70

212

211

Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies

'

'

'

'

'

'

'

'

'

345

33

96

Income tax expense

'

'

'

'

'

'

'

'

'

60

-39

12

Equity in net income (loss) from affiliated companies

'

'

'

'

'

'

'

'

'

32

217

116

Net income

'

'

'

'

'

'

'

'

'

317

289

200

Net income (loss) attributable to Tenneco Inc.

'

'

'

'

'

'

'

'

'

317

289

200

Comprehensive income (loss) attributable to Tenneco Inc.

'

'

'

'

'

'

'

'

'

390

277

105

Non-Guarantor Subsidiaries

'

'

'

'

'

'

'

'

'

'

'

'

Net sales and operating revenues —

'

'

'

'

'

'

'

'

'

'

'

'

External

'

'

'

'

'

'

'

'

'

4,466

4,032

4,102

Affiliated companies

'

'

'

'

'

'

'

'

'

572

547

514

Net sales and operating revenues

'

'

'

'

'

'

'

'

'

5,038

4,579

4,616

Costs and expenses

'

'

'

'

'

'

'

'

'

'

'

'

Cost of sales (exclusive of depreciation and amortization shown below)

'

'

'

'

'

'

'

'

'

4,553

3,843

3,949

Goodwill impairment charge

'

'

'

'

'

'

'

'

'

0

0

11

Engineering, research, and development

'

'

'

'

'

'

'

'

'

78

69

76

Selling, general, and administrative

'

'

'

'

'

'

'

'

'

260

224

281

Depreciation and amortization of other intangibles

'

'

'

'

'

'

'

'

'

127

133

133

Costs and expenses

'

'

'

'

'

'

'

'

'

5,018

4,269

4,450

Other income (expense)

'

'

'

'

'

'

'

'

'

'

'

'

Loss on sale of receivables

'

'

'

'

'

'

'

'

'

-4

-4

-5

Other income (expense)

'

'

'

'

'

'

'

'

'

59

-71

1

Total other income (expense)

'

'

'

'

'

'

'

'

'

55

-75

-4

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

'

75

235

162

Interest expense —

'

'

'

'

'

'

'

'

'

'

'

'

External (net of interest capitalized)

'

'

'

'

'

'

'

'

'

5

5

6

Affiliated companies (net of interest income)

'

'

'

'

'

'

'

'

'

-72

-81

-72

Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies

'

'

'

'

'

'

'

'

'

142

311

228

Income tax expense

'

'

'

'

'

'

'

'

'

62

58

76

Net income

'

'

'

'

'

'

'

'

'

80

253

152

Less: Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

'

39

29

26

Net income (loss) attributable to Tenneco Inc.

'

'

'

'

'

'

'

'

'

41

224

126

Comprehensive income (loss) attributable to Tenneco Inc.

'

'

'

'

'

'

'

'

'

16

210

81

Tenneco Inc. (Parent Company)

'

'

'

'

'

'

'

'

'

'

'

'

Costs and expenses

'

'

'

'

'

'

'

'

'

'

'

'

Selling, general, and administrative

'

'

'

'

'

'

'

'

'

6

5

3

Costs and expenses

'

'

'

'

'

'

'

'

'

6

5

3

Other income (expense)

'

'

'

'

'

'

'

'

'

'

'

'

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

'

-6

-5

-3

Interest expense —

'

'

'

'

'

'

'

'

'

'

'

'

External (net of interest capitalized)

'

'

'

'

'

'

'

'

'

77

100

103

Affiliated companies (net of interest income)

'

'

'

'

'

'

'

'

'

2

-131

-139

Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies

'

'

'

'

'

'

'

'

'

-85

26

33

Equity in net income (loss) from affiliated companies

'

'

'

'

'

'

'

'

'

268

249

124

Net income

'

'

'

'

'

'

'

'

'

183

275

157

Net income (loss) attributable to Tenneco Inc.

'

'

'

'

'

'

'

'

'

183

275

157

Comprehensive income (loss) attributable to Tenneco Inc.

'

'

'

'

'

'

'

'

'

183

275

157

Reclass & Elims

'

'

'

'

'

'

'

'

'

'

'

'

Net sales and operating revenues —

'

'

'

'

'

'

'

'

'

'

'

'

Affiliated companies

'

'

'

'

'

'

'

'

'

-922

-729

-676

Net sales and operating revenues

'

'

'

'

'

'

'

'

'

-922

'

-676

Costs and expenses

'

'

'

'

'

'

'

'

'

'

'

'

Cost of sales (exclusive of depreciation and amortization shown below)

'

'

'

'

'

'

'

'

'

-922

-729

-676

Costs and expenses

'

'

'

'

'

'

'

'

'

-922

-729

-676

Other income (expense)

'

'

'

'

'

'

'

'

'

'

'

'

Other income (expense)

'

'

'

'

'

'

'

'

'

-58

-47

-86

Total other income (expense)

'

'

'

'

'

'

'

'

'

-58

-47

-86

Earnings before interest expense, income taxes, and noncontrolling interests

'

'

'

'

'

'

'

'

'

-58

-47

-86

Interest expense —

'

'

'

'

'

'

'

'

'

'

'

'

Earnings (loss) before income taxes, noncontrolling interests and equity in net income from affiliated companies

'

'

'

'

'

'

'

'

'

-58

-47

-86

Equity in net income (loss) from affiliated companies

'

'

'

'

'

'

'

'

'

-300

-466

-240

Net income

'

'

'

'

'

'

'

'

'

-358

-513

-326

Net income (loss) attributable to Tenneco Inc.

'

'

'

'

'

'

'

'

'

-358

-513

-326

Comprehensive income (loss) attributable to Tenneco Inc.

'

'

'

'

'

'

'

'

'

($358)

($513)

($326)

Balance_Sheet_Detail

Balance Sheet (Detail) (USD $)	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
In Millions, unless otherwise specified
Current assets:	'		'		'		'
Cash and cash equivalents	$275	[1]	$223	[1]	$214	[1]	$233
Restricted cash	5		0		'		'
Receivables, net	1,060		986		'		'
Inventories	656		667		'		'
Deferred income taxes	71		72		'		'
Prepayments and other	223		176		'		'
Total current assets	2,290		2,124		'		'
Other assets:	'		'		'		'
Long-term receivables, net	14		4		'		'
Goodwill	69		72		'		'
Intangibles, net	30		35		'		'
Deferred income taxes	125		116		'		'
Other	127		135		'		'
Total other assets	365		362		'		'
Plant, property, and equipment, at cost	3,498		3,365		'		'
Less — Accumulated depreciation and amortization	-2,323		-2,243		'		'
Plant, property and equipment, net	1,175		1,122		'		'
Total Assets	3,830		3,608		3,337		'
Short-term debt (including current maturities of long-term debt)	'		'		'		'
Short-term debt — non-affiliated	83		113		'		'
Accounts payable	1,359		1,186		'		'
Accrued taxes	40		50		'		'
Other	356		300		'		'
Total current liabilities	1,838		1,649		'		'
Long-term debt — non-affiliated	1,019		1,067		'		'
Deferred income taxes	28		27		'		'
Postretirement benefits and other liabilities	453		559		'		'
Commitments and contingencies	'		'		'		'
Total liabilities	3,338		3,302		'		'
Redeemable noncontrolling interests	20		15		'		'
Total Tenneco Inc. shareholders’ equity	433		246		'		'
Noncontrolling interests	39		45		'		'
Total equity	472		291		43		'
Total liabilities, redeemable noncontrolling interests and equity	3,830		3,608		'		'
Guarantor Subsidiaries	'		'		'		'
Current assets:	'		'		'		'
Cash and cash equivalents	6		4		1		0
Receivables, net	387		341		'		'
Inventories	279		278		'		'
Deferred income taxes	87		91		'		'
Prepayments and other	35		28		'		'
Total current assets	794		742		'		'
Other assets:	'		'		'		'
Investment in affiliated companies	944		551		'		'
Notes and advances receivable from affiliates	1,026		957		'		'
Long-term receivables, net	12		2		'		'
Goodwill	22		21		'		'
Intangibles, net	13		18		'		'
Deferred income taxes	72		55		'		'
Other	44		31		'		'
Total other assets	2,133		1,635		'		'
Plant, property, and equipment, at cost	1,173		1,098		'		'
Less — Accumulated depreciation and amortization	-807		-763		'		'
Plant, property and equipment, net	366		335		'		'
Total Assets	3,293		2,712		'		'
Short-term debt (including current maturities of long-term debt)	'		'		'		'
Short-term debt — affiliated	247		250		'		'
Accounts payable	521		423		'		'
Accrued taxes	9		16		'		'
Other	128		135		'		'
Total current liabilities	905		824		'		'
Long-term debt — affiliated	1,700		1,447		'		'
Postretirement benefits and other liabilities	357		438		'		'
Commitments and contingencies	'		'		'		'
Total liabilities	2,962		2,709		'		'
Total Tenneco Inc. shareholders’ equity	331		3		'		'
Total equity	331		3		'		'
Total liabilities, redeemable noncontrolling interests and equity	3,293		2,712		'		'
Non-Guarantor Subsidiaries	'		'		'		'
Current assets:	'		'		'		'
Cash and cash equivalents	269		219		213		233
Restricted cash	5		'		'		'
Receivables, net	1,306		1,268		'		'
Inventories	377		389		'		'
Deferred income taxes	'		0		'		'
Prepayments and other	188		148		'		'
Total current assets	2,145		2,024		'		'
Other assets:	'		'		'		'
Notes and advances receivable from affiliates	7,320		4,495		'		'
Long-term receivables, net	2		2		'		'
Goodwill	47		51		'		'
Intangibles, net	17		17		'		'
Deferred income taxes	9		1		'		'
Other	60		75		'		'
Total other assets	7,455		4,641		'		'
Plant, property, and equipment, at cost	2,325		2,267		'		'
Less — Accumulated depreciation and amortization	-1,516		-1,480		'		'
Plant, property and equipment, net	809		787		'		'
Total Assets	10,409		7,452		'		'
Short-term debt (including current maturities of long-term debt)	'		'		'		'
Short-term debt — non-affiliated	68		112		'		'
Short-term debt — affiliated	176		173		'		'
Accounts payable	1,011		954		'		'
Accrued taxes	31		34		'		'
Other	285		210		'		'
Total current liabilities	1,571		1,483		'		'
Long-term debt — non-affiliated	8		8		'		'
Long-term debt — affiliated	7,338		4,533		'		'
Deferred income taxes	28		27		'		'
Postretirement benefits and other liabilities	92		118		'		'
Commitments and contingencies	'		'		'		'
Total liabilities	9,037		6,169		'		'
Redeemable noncontrolling interests	20		15		'		'
Total Tenneco Inc. shareholders’ equity	1,313		1,223		'		'
Noncontrolling interests	39		45		'		'
Total equity	1,352		1,268		'		'
Total liabilities, redeemable noncontrolling interests and equity	10,409		7,452		'		'
Tenneco Inc. (Parent Company)	'		'		'		'
Current assets:	'		'		'		'
Receivables, net	16		30		'		'
Deferred income taxes	7		6		'		'
Total current assets	23		36		'		'
Other assets:	'		'		'		'
Investment in affiliated companies	696		717		'		'
Notes and advances receivable from affiliates	4,826		4,594		'		'
Deferred income taxes	44		60		'		'
Other	23		29		'		'
Total other assets	5,589		5,400		'		'
Total Assets	5,612		5,436		'		'
Short-term debt (including current maturities of long-term debt)	'		'		'		'
Short-term debt — non-affiliated	15		1		'		'
Short-term debt — affiliated	10		10		'		'
Other	9		9		'		'
Total current liabilities	34		20		'		'
Long-term debt — non-affiliated	1,011		1,059		'		'
Long-term debt — affiliated	4,134		4,066		'		'
Commitments and contingencies	'		'		'		'
Total liabilities	5,179		5,145		'		'
Total Tenneco Inc. shareholders’ equity	433		291		'		'
Total equity	433		291		'		'
Total liabilities, redeemable noncontrolling interests and equity	5,612		5,436		'		'
Reclass & Elims	'		'		'		'
Current assets:	'		'		'		'
Receivables, net	-649		-653		'		'
Deferred income taxes	-23		-25		'		'
Total current assets	-672		-678		'		'
Other assets:	'		'		'		'
Investment in affiliated companies	-1,640		-1,268		'		'
Notes and advances receivable from affiliates	-13,172		-10,046		'		'
Total other assets	-14,812		-11,314		'		'
Total Assets	-15,484		-11,992		'		'
Short-term debt (including current maturities of long-term debt)	'		'		'		'
Short-term debt — affiliated	-433		-433		'		'
Accounts payable	-173		-191		'		'
Other	-66		-54		'		'
Total current liabilities	-672		-678		'		'
Long-term debt — affiliated	-13,172		-10,046		'		'
Postretirement benefits and other liabilities	4		3		'		'
Commitments and contingencies	'		'		'		'
Total liabilities	-13,840		-10,721		'		'
Total Tenneco Inc. shareholders’ equity	-1,644		-1,271		'		'
Total equity	-1,644		-1,271		'		'
Total liabilities, redeemable noncontrolling interests and equity	($15,484)		($11,992)		'		'
[1]	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_Detail

Statement of Cash Flows (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Operating Activities	'		'		'
Net cash provided (used) by operating activities	$503		$365		$245
Investing Activities	'		'		'
Proceeds from sale of assets	8		3		4
Cash payments for plant, property, and equipment	-244		-256		-213
Cash payments for software related intangible assets	-25		-13		-15
Cash payments for net assets purchased	'		-7		'
Changes in restricted cash	-5		0		0
Net cash used by investing activities	-266		-273		-224
Financing Activities	'		'		'
Retirement of long-term debt	-16		-411		-24
Issuance of long-term debt	0		250		5
Debt issuance cost on long-term debt	0		-13		-1
Tax benefit from stock-based compensation	24		0		0
Purchase of common stock under the share repurchase program	-27		-18		-16
Issuance of common stock	20		5		0
Increase in bank overdrafts	-6		5		3
Net increase/decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt	-22		67		30
Net increase in short-term borrowings secured by accounts receivable	-40		50		0
Capital contribution from noncontrolling interest partner	0		5		1
Purchase of noncontrolling equity interest	-69		0		-4
Distribution to noncontrolling interest partners	-39		-29		-20
Net cash used by financing activities	-175		-89		-26
Effect of foreign exchange rate changes on cash and cash equivalents	-10		6		-14
Increase (decrease) in cash and cash equivalents	52		9		-19
Cash and cash equivalents, January 1	223	[1]	214	[1]	233
Cash and cash equivalents, December 31 (Note)	275	[1]	223	[1]	214	[1]
Guarantor Subsidiaries	'		'		'
Operating Activities	'		'		'
Net cash provided (used) by operating activities	270		385		401
Investing Activities	'		'		'
Proceeds from sale of assets	1		0		3
Cash payments for plant, property, and equipment	-102		-101		-69
Cash payments for software related intangible assets	-19		-6		-4
Cash payments for net assets purchased	'		-7		'
Net cash used by investing activities	-120		-114		-70
Financing Activities	'		'		'
Intercompany dividends and net increase (decrease) in intercompany obligations	-148		-268		-330
Net cash used by financing activities	-148		-268		-330
Increase (decrease) in cash and cash equivalents	2		3		1
Cash and cash equivalents, January 1	4		1		0
Cash and cash equivalents, December 31 (Note)	6		4		1
Non-Guarantor Subsidiaries	'		'		'
Operating Activities	'		'		'
Net cash provided (used) by operating activities	185		206		83
Investing Activities	'		'		'
Proceeds from sale of assets	7		3		1
Cash payments for plant, property, and equipment	-142		-155		-144
Cash payments for software related intangible assets	-6		-7		-11
Changes in restricted cash	-5		'		'
Net cash used by investing activities	-146		-159		-154
Financing Activities	'		'		'
Retirement of long-term debt	-2		-1		-1
Issuance of long-term debt	'		0		5
Increase in bank overdrafts	-6		5		3
Net increase/decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt	-43		48		6
Intercompany dividends and net increase (decrease) in intercompany obligations	180		-75		75
Capital contribution from noncontrolling interest partner	'		5		1
Purchase of noncontrolling equity interest	-69		'		-4
Distribution to noncontrolling interest partners	-39		-29		-20
Net cash used by financing activities	21		-47		65
Effect of foreign exchange rate changes on cash and cash equivalents	-10		6		-14
Increase (decrease) in cash and cash equivalents	50		6		-20
Cash and cash equivalents, January 1	219		213		233
Cash and cash equivalents, December 31 (Note)	269		219		213
Tenneco Inc. (Parent Company)	'		'		'
Operating Activities	'		'		'
Net cash provided (used) by operating activities	48		-226		-239
Financing Activities	'		'		'
Retirement of long-term debt	-14		-410		-23
Issuance of long-term debt	'		250		0
Debt issuance cost on long-term debt	'		-13		-1
Tax benefit from stock-based compensation	24		'		'
Purchase of common stock under the share repurchase program	-27		-18		-16
Issuance of common stock	20		5		'
Net increase/decrease in revolver borrowings and short-term debt excluding current maturities of long-term debt	21		19		24
Net increase in short-term borrowings secured by accounts receivable	-40		50		0
Intercompany dividends and net increase (decrease) in intercompany obligations	-32		343		255
Net cash used by financing activities	($48)		$226		$239
[1]	Cash and cash equivalents include highly liquid investments with a maturity of three months or less at the date of purchase.

Quarterly_Financial_Data_Detai

Quarterly Financial Data (Detail) (USD $)	3 Months Ended								12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Data [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net sales and operating revenues	$2,031	$1,963	$2,067	$1,903	$1,753	$1,778	$1,920	$1,912	$7,964	$7,363	$7,205
Cost of Sales (Excluding Depreciation and Amortization)	1,703	1,691	1,736	1,604	1,474	1,494	1,595	1,607	6,734	6,170	6,037
Earnings Before Interest Expense, Income Taxes and Noncontrolling Interests	118	72	141	93	84	111	137	96	424	428	379
Net income attributable to Tenneco Inc.	$54	$12	$63	$54	$33	$125	$87	$30	$183	$275	$157
Basic earnings per share of common stock (in dollars per share)	$0.90	$0.19	$1.04	$0.90	$0.55	$2.09	$1.45	$0.50	$3.03	$4.58	$2.62
Diluted earnings per share of common stock (in dollars per share)	$0.88	$0.19	$1.02	$0.88	$0.54	$2.05	$1.42	$0.49	$2.97	$4.50	$2.55

Recovered_Sheet7

Valuation and Qualifying Accounts (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Movement in Valuation Allowances and Reserves [Roll Forward]	'	'	'
Balance at Beginning of Year	$14	$17	$20
Charged to Costs and Expenses	1	3	1
Charged to Other Accounts	0	0	0
Deductions	1	6	4
Balance at End of Year	$14	$14	$17