Exhibit 12

The following table sets forth our ratio of earnings to fixed charges for the periods indicated (in millions):

	Twelve Months Ended Dec. 31,
	2011			2010			2009			2008			2007
Earnings:
Earnings (loss) from continuing operations before taxes	$	353		$	96		$	81		$	118		$	22
Fixed charges (see below)		149			146			146			163			177
Amortization of capitalized interest		4			3			3			2			1
Capitalized interest		(13	)		(10	)		(10	)		(9	)		(11	)
Noncontrolling interest in pre-tax income of subsidiaries that have not incurred fixed charges		—			—			—			—			—
Earnings, as adjusted	$	493		$	235		$	220		$	274		$	189
Fixed charges:
Portion of rents representative of interest expense (33%)	$	25		$	23		$	24		$	31		$	32
Interest on indebtedness, including amortization of deferred loan costs		111			113			112			123			134
Capitalized interest		13			10			10			9			11
Total fixed charges	$	149		$	146		$	146		$	163		$	177
Ratio of earnings to fixed charges		3.3			1.6			1.5			1.7			1.1