CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net income attributable to Tenneco Inc.	$ 83	$ 179	$ 139	$ 318
Less: Net income attributable to noncontrolling interests	16	17	48	48
Net Income	99	196	187	366
Translation of foreign currency statements attributable to Tenneco	28	1	81	4
Translation of foreign currency statements attributable to Noncontrolling Interest	1	0	4	(1)
Translation of foreign currency statements	29	1	85	3
Additional Liability for Pension and Postretirement Benefits, net of tax attributable to Tenneco	3	4	14	11
Additional liability for pension and postretirement benefits, net of tax	3	4	14	11
Accumulated Other Comprehensive Income (Loss)
Beginning balance			620
Ending balance	686	659	686	659
Other Comprehensive Income (Loss)	32	5	99	14
Comprehensive Income attributable to Tenneco	114	184	234	333
Comprehensive Income attributable to Noncontrolling Interest	17	17	52	47
Comprehensive Income	131	201	286	380
Tenneco Inc.
Net income attributable to Tenneco Inc.		179		318
Accumulated Other Comprehensive Income (Loss)
Ending balance	647	622	647	622
Other Comprehensive Income (Loss)	31	5	95	15
Comprehensive Income attributable to Tenneco		184		333
AOCI Tenneco, Inc
Accumulated Other Comprehensive Income (Loss)
Beginning balance			(665)	(665)
Ending balance	(570)	(650)	(570)	(650)
Other Comprehensive Income (Loss)			95	15
Tenneco, Inc. Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(285)	(294)	(338)	(297)
Reclassification	28	1	81	4
Ending balance	(257)	(293)	(257)	(293)
Tenneco, Inc. Additional Liability for Pension and Postretirement Benefits
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(316)	(361)	(327)	(368)
Reclassification	3	4	14	11
Ending balance	(313)	(357)	(313)	(357)
Noncontrolling Interests
Less: Net income attributable to noncontrolling interests		17		48
Accumulated Other Comprehensive Income (Loss)
Beginning balance			47	39
Ending balance	39	37	39	37
Other Comprehensive Income (Loss)	1	0	4	(1)
Comprehensive Income attributable to Noncontrolling Interest		17		47
AOCI Noncontrolling Interests
Accumulated Other Comprehensive Income (Loss)
Ending balance	(1)	(2)	(1)	(2)
Noncontrolling Interests Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(2)	(2)	(5)	(1)
Reclassification	1	0	4	(1)
Ending balance	(1)	(2)	(1)	(2)
Total
Accumulated Other Comprehensive Income (Loss)
Ending balance	(571)	(652)	(571)	(652)
Total Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(287)	(296)	(343)	(298)
Reclassification	29	1	85	3
Ending balance	(258)	(295)	(258)	(295)
Total Additional Liability for Pension and Postretirement Benefits
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(316)	(361)	(327)	(368)
Reclassification	3	4	14	11
Ending balance	$ (313)	$ (357)	$ (313)	$ (357)