Exhibit 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Year ended December 31,
	2013		2012			2011		2010		2009
	(millions except ratios)
Income (loss) from continuing operations before income taxes, interest in earnings of associates and noncontrolling interests	$	499	$	(337	)	$	239	$	587	$	516
Add back fixed charges:
Total fixed charges	168		169			197		208		224
Dividends from associates	3		3			7		5		12
Less:
Capitalized interest	—		—			—		—		—
Income (loss) as adjusted	$	670	$	(165	)	$	443	$	800	$	752
Fixed charges
Interest expense	$	126	$	128		$	156	$	166	$	174
Portions of rents representative of interest factor	42		41			41		42		50
Total fixed charges	$	168	$	169		$	197	$	208	$	224
Ratio of earnings to fixed charges	4.0		(1.0		)	2.2		3.8		3.4

COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS

	Year ended December 31,
	2013		2012			2011		2010		2009
	(millions except ratios)
Income (loss) from continuing operations before income taxes, interest in earnings of associates and noncontrolling interests	$	499	$	(337	)	$	239	$	587	$	516
Add back fixed charges:
Total fixed charges	168		169			197		208		224
Dividends from associates	3		3			7		5		12
Less:
Capitalized interest	—		—			—		—		—
Income (loss) as adjusted	$	670	$	(165	)	$	443	$	800	$	752
Fixed charges and preferred stock dividends
Interest expense	$	126	$	128		$	156	$	166	$	174
Portions of rents representative of interest factor	42		$	41		$	41	$	42	$	50
Total fixed charges	168		$	169		$	197	$	208	$	224
Preferred stock dividends	—		$	—		$	—	$	—	$	—
Total fixed charges and preferred stock dividends	$	168	$	169		$	197	$	208	$	224
Ratio of earnings to fixed charges and preferred stock dividends	4.0		(1.0		)	2.2		3.8		3.4