Earnings Per Share

6 Months Ended

Jun. 30, 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 June 30, 2013		Three Months Ended June 30, 2012		Six Months Ended June 30, 2013		Six Months Ended June 30, 2012
	(Millions Except Share and Per Share Amounts)
Basic earnings per share —
Net income attributable to Tenneco Inc.	$	63	$	87	$	117	$	117
Weighted Average shares of common stock outstanding	60,542,361		59,992,055		60,424,540		60,067,205
Earnings per share of common stock	$	1.04	$	1.45	$	1.94	$	1.95
Diluted earnings per share —
Net income attributable to Tenneco Inc.	$	63	$	87	$	117	$	117
Weighted Average shares of common stock outstanding	60,542,361		59,992,055		60,424,540		60,067,205
Effect of dilutive securities:
Restricted stock	170,950		109,722		157,551		139,995
Stock options	1,010,813		1,159,094		950,459		1,263,313
Weighted Average shares of common stock outstanding including dilutive securities	61,724,124		61,260,871		61,532,550		61,470,513
Earnings per share of common stock	$	1.02	$	1.42	$	1.91	$	1.90

Options to purchase 830,486 and 524,701 shares of common stock were outstanding as of June 30, 2013 and 2012, respectively, but not included in the computation of diluted earnings per share respectively, because the options were anti-dilutive.