CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS EQUITY (Unaudited) - 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	Tenneco Inc.	Noncontrolling Interests
Beginning balance at Dec. 31, 2015		$ 1,000,000	$ 3,081,000,000	$ (665,000,000)	$ (1,456,000,000)	$ 536,000,000		$ 39,000,000
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 (shares)		313,332
Restricted shares forfeited (shares)		0
Stock options exercised (shares)		383,981
Premium on common stock issued pursuant to benefit plans			10,000,000
Other Comprehensive Income (Loss)	$ 14,000,000			15,000,000			$ 15,000,000	(1,000,000)
Net income attributable to Tenneco Inc.	318,000,000				318,000,000		318,000,000
Cash dividends declared	(0.00)				0
Purchase of common stock through stock repurchase program (shares)						2,783,064
Purchase of common stock through stock repurchase program						$ 146,000,000
Net income								20,000,000
Other comprehensive income	(1,000,000)							0
Dividends declared								(22,000,000)
Ending balance (in shares) at Sep. 30, 2016		65,764,445				10,256,389
Ending balance at Sep. 30, 2016	659,000,000	$ 1,000,000	3,091,000,000	(650,000,000)	(1,138,000,000)	$ 682,000,000	622,000,000	37,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other Comprehensive Income (Loss)	5,000,000						5,000,000	0
Net income attributable to Tenneco Inc.	179,000,000						179,000,000
Cash dividends declared	(0.00)
Ending balance (in shares) at Sep. 30, 2016		65,764,445				10,256,389
Ending balance at Sep. 30, 2016	659,000,000	$ 1,000,000	3,091,000,000	(650,000,000)	(1,138,000,000)	$ 682,000,000	622,000,000	37,000,000
Beginning balance at Dec. 31, 2016	620,000,000	$ 1,000,000	3,098,000,000	(665,000,000)	(1,100,000,000)	$ 761,000,000		47,000,000
Beginning balance (in shares) at Dec. 31, 2016		65,891,930				11,655,938
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued pursuant to benefit plans (shares)		35,843
Restricted shares forfeited (shares)		(126,682)
Stock options exercised (shares)		208,818
Premium on common stock issued pursuant to benefit plans			11,000,000
Other Comprehensive Income (Loss)	99,000,000			95,000,000			95,000,000	4,000,000
Net income attributable to Tenneco Inc.	139,000,000				139,000,000
Cash dividends declared	(0.75)				(40,000,000)
Purchase of common stock through stock repurchase program (shares)						2,310,443
Purchase of common stock through stock repurchase program						$ 131,000,000
Net income								21,000,000
Other comprehensive income	2,000,000							2,000,000
Dividends declared								(31,000,000)
Ending balance (in shares) at Sep. 30, 2017		66,009,909				13,966,381
Ending balance at Sep. 30, 2017	$ 686,000,000	$ 1,000,000	3,109,000,000	(570,000,000)	(1,001,000,000)	$ 892,000,000	647,000,000	39,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (shares)	50,125
Other Comprehensive Income (Loss)	$ 32,000,000						31,000,000	1,000,000
Net income attributable to Tenneco Inc.	83,000,000
Cash dividends declared	(0.25)
Ending balance (in shares) at Sep. 30, 2017		66,009,909				13,966,381
Ending balance at Sep. 30, 2017	$ 686,000,000	$ 1,000,000	$ 3,109,000,000	$ (570,000,000)	$ (1,001,000,000)	$ 892,000,000	$ 647,000,000	$ 39,000,000