Exhibit 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

AND

RATIO OF EARNINGS TO

COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS

Computation of Ratio of Earnings to Fixed Charges

	For the Six Months Ended June 30,			For the Years Ended December 31,
(in millions)	2013			2012			2011		2010			2009		2008
Earnings Before Fixed Charges:
Net income (loss)	$	72.0		$	243.9		$	204.7	$	106.7		$	128.7	$	(58.9	)
Less/add: Income tax (benefit) provision		42.4			147.6			125.7		122.8			110.5		26.3
Less/add: Equity (income) loss of minority-owned companies		(0.2	)		(0.9	)		0.5		(1.3	)		0.1		0.1
Add: Amortization of capitalized interest		—			—			0.2		0.1			0.2		0.2
Add: Fixed charges		140.0			219.6			216.2		209.9			176.6		206.3
Total earnings available for fixed charges	$	254.2		$	610.2		$	547.3	$	438.2		$	416.1	$	174.0
Fixed Charges:
Interest expense	$	121.7		$	185.3		$	179.7	$	177.8		$	147.3	$	178.7
Interest component of rental expense		18.3			34.3			36.5		32.0			29.3		27.6
Total fixed charges before capitalized interest		140.0			219.6			216.2		209.8			176.6		206.3
Capitalized interest		—			—			—		0.1			—		—
Total Fixed Charges	$	140.0		$	219.6		$	216.2	$	209.9		$	176.6	$	206.3
Ratio of Earnings to Fixed Charges		1.8			2.8			2.5		2.1			2.4		(A	)

(A) Due to the loss in 2008, additional net income of $32.3 would have been necessary to achieve a ratio of 1:1.

Computation of Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends

	For the Six Months Ended June 30,			For the Years Ended December 31,
(in millions)	2013			2012			2011		2010			2009		2008
Earnings Before Fixed Charges:
Net income (loss)	$	72.0		$	243.9		$	204.7	$	106.7		$	128.7	$	(58.9	)
Less/add: Income tax (benefit) provision		42.4			147.6			125.7		122.8			110.5		26.3
Less/add: Equity (income) loss of minority-owned companies		(0.2	)		(0.9	)		0.5		(1.3	)		0.1		0.1
Add: Amortization of capitalized interest		—			—			0.2		0.1			0.2		0.2
Add: Fixed charges		140.0			219.6			216.2		209.9			176.6		206.3
Total earnings available for fixed charges	$	254.2		$	610.2		$	547.3	$	438.2		$	416.1	$	174.0
Fixed Charges:
Interest expense	$	121.7		$	185.3		$	179.7	$	177.8		$	147.3	$	178.7
Interest component of rental expense		18.3			34.3			36.5		32.0			29.3		27.6
Total fixed charges before capitalized interest		140.0			219.6			216.2		209.8			176.6		206.3
Capitalized interest		—			—			—		0.1			—		—
Total Fixed Charges	$	140.0		$	219.6		$	216.2	$	209.9		$	176.6	$	206.3
Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends		1.8			2.8			2.5		2.1			2.4		(B	)

(B) Due to the loss in 2008, additional net income of $32.3 would have been necessary to achieve a ratio of 1:1.