Exhibit 12

RATIO OF EARNINGS TO FIXED CHARGES

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

	Twelve Months Ended December 31,
	2014		2013		2012		2011		2010
Ratio of Earnings to Fixed Charges		2.5		3		0.8		3.3		1.6

The computation of the ratio of earnings to fixed charges is as follows (in millions):

	Twelve Months Ended December 31,
	2014			2013			2012			2011			2010
Earnings:
Earnings from continuing operations before taxes	$	232		$	273		$	(40	)	$	353		$	96
Fixed charges (see below)		152			134			215			149			146
Amortization of capitalized interest		8			7			6			4			3
Capitalized interest		(10	)		(8	)		(13	)		(13	)		(10	)
Noncontrolling interest in pre-tax income of subsidiaries that have not incurred fixed charges		—			—			—			—			—
Earnings, as adjusted	$	382		$	406		$	168		$	493		$	235
Fixed charges:
Portion of rents representative of interest expense	$	30		$	7		$	9		$	25		$	23
Interest on indebtedness, including amortization of deferred loan costs		112			119			193			111			113
Capitalized interest		10			8			13			13			10
Total fixed charges	$	152		$	134		$	215		$	149		$	146