Earnings Per Share

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Earnings per share of common stock outstanding were computed as follows:

	Three Months Ended March 31,
	2013		2012
	(Millions Except Share and Per Share Amounts)
Basic earnings per share —
Net income attributable to Tenneco Inc.	$	54	$	30
Weighted Average shares of common stock outstanding	60,288,997		60,196,428
Earnings per average share of common stock	$	0.90	$	0.50
Diluted earnings per share —
Net income attributable to Tenneco Inc.	$	54	$	30
Weighted Average shares of common stock outstanding	60,288,997		60,196,428
Effect of dilutive securities:
Restricted stock	138,594		160,346
Stock options	1,054,244		1,379,430
Weighted Average shares of common stock outstanding including dilutive securities	61,481,835		61,736,204
Earnings per average share of common stock	$	0.88	$	0.49

Options to purchase 831,243 and 202,064 shares of common stock were outstanding as of March 31, 2013 and 2012, respectively, but not included in the computation of diluted earnings per share respectively, because the options were anti-dilutive.