CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS EQUITY (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Premium on Common Stock and Other Capital Surplus	Accumulated Other Comprehensive Loss	Retained Earnings (Accumulated Deficit)	Less — Common Stock Held as Treasury Stock, at Cost	Tenneco Inc.	Noncontrolling Interests
Treasury Stock, Shares, Acquired						192,000
Treasury Stock, Value, Acquired, Cost Method	$ 11
Beginning balance at Dec. 31, 2014		$ 1	$ 3,059	$ (545)	$ (1,695)	$ 323		$ 41
Beginning balance (in shares) at Dec. 31, 2014		64,454,248				3,244,692
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued pursuant to benefit plans		295,682
Stock options exercised		97,097
Premium on common stock issued pursuant to benefit plans			8
Other comprehensive income (loss)	(68)			(69)			$ (69)	1
Net income attributable to Tenneco Inc.	49				49
Net income								6
Other comprehensive income (loss), noncontrolling interest								1
Ending balance (in shares) at Mar. 31, 2015		64,847,027				3,436,692
Ending balance at Mar. 31, 2015	522	$ 1	3,067	(614)	(1,646)	$ 334	474	48
Treasury Stock, Shares, Acquired						360,000
Treasury Stock, Value, Acquired, Cost Method	16
Beginning balance at Dec. 31, 2015	$ 475	$ 1	3,081	(665)	(1,448)	$ 536		42
Beginning balance (in shares) at Dec. 31, 2015		65,067,132				7,473,325
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued pursuant to benefit plans		315,706
Stock options exercised	21,392	21,392
Premium on common stock issued pursuant to benefit plans			4
Other comprehensive income (loss)	$ 28			27			27	1
Net income attributable to Tenneco Inc.	57				57
Net income								7
Other comprehensive income (loss), noncontrolling interest								0
Ending balance (in shares) at Mar. 31, 2016		65,404,230				7,833,325
Ending balance at Mar. 31, 2016	$ 554	$ 1	$ 3,085	$ (638)	$ (1,391)	$ 552	$ 505	$ 49