CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues
Net sales and operating revenues	$ 2,081	$ 1,963	$ 6,416	$ 5,933
Costs and expenses
Cost of sales (exclusive of depreciation and amortization shown below)	1,735	1,691	5,340	5,031
Engineering, research, and development	42	35	126	103
Selling, general, and administrative	108	112	379	337
Depreciation and amortization of other intangibles	52	51	155	151
Costs and expenses	1,937	1,889	6,000	5,622
Other expense
Loss on sale of receivables	(1)	(1)	(3)	(3)
Other	(3)	(1)	(4)	(2)
Total other income (expense)	(4)	(2)	(7)	(5)
Earnings before interest expense, income taxes, and noncontrolling interests	140	72	409	306
Interest expense (net of interest capitalized of $1 million in both of the three months ended September 30, 2014 and 2013, and $3 million in both of the nine months ended September 30, 2014 and 2013, respectively)	20	20	58	60
Earnings before income taxes and noncontrolling interests	120	52	351	246
Income tax expense	31	30	117	89
Net income	89	22	234	157
Less: Net income attributable to noncontrolling interests	11	10	29	28
Net income attributable to Tenneco Inc.	$ 78	$ 12	$ 205	$ 129
Weighted average shares of common stock outstanding —
Basic (in shares)	60,762,667	60,624,358	60,671,410	60,475,652
Diluted (in shares)	61,713,851	61,865,375	61,635,062	61,583,629
Basic earnings per share of common stock (in dollars per share)	$ 1.29	$ 0.19	$ 3.39	$ 2.13
Diluted earnings per share of common stock (in dollars per share)	$ 1.27	$ 0.19	$ 3.33	$ 2.09