Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data

Quarter	Net Sales and Operating Revenues		Cost of Sales (Excluding Depreciation and Amortization)		Earnings Before Interest Expense, Income Taxes and Noncontrolling Interests		Net Income Attributable to Tenneco Inc.
	(Millions)
2017
1st	$	2,292	$	1,929	$	121	$	59
2nd		2,317		1,949		27		(3	)
3rd		2,274		1,911		134		83
4th		2,391		2,020		135		68
	$	9,274	$	7,809	$	417	$	207
2016
1st	$	2,136	$	1,769	$	124	$	57
2nd		2,212		1,814		171		82
3rd		2,096		1,741		150		179
4th		2,155		1,792		71		38
	$	8,599	$	7,116	$	516	$	356

Quarter	Basic Earnings per Share of Common Stock			Diluted Earnings per Share of Common Stock
2017
1st	$	1.10		$	1.09
2nd		(0.05	)		(0.05	)
3rd		1.57			1.57
4th		1.33			1.33
Full Year		3.93			3.91
2016
1st	$	1.00		$	0.99
2nd		1.44			1.43
3rd		3.22			3.19
4th		0.70			0.69
Full Year		6.36			6.31