Exhibit 12.1

Computation of Ratio of Earnings to Fixed Charges

For the Three Months ended March 31, 2009, the Years ended December 31, 2008 and 2007,

the Periods from May 24, 2006 to December 31, 2006 and January 1, 2006 to May 23, 2006 and the

Years ended December 31, 2005 and 2004

	Successor												Predecessor
(IN MILLIONS)	Three months ended March 31, 2009			Year ended December 31, 2008			Year ended December 31, 2007			May 24 - December 31, 2006			January 1 - May 23, 2006		Year ended December 31, 2005			Year ended December 31, 2004
Fixed charges
Interest expense	$	163		$	639		$	650		$	386		$	49	$	133		$	192
Interest capitalized		1			2			1			—			—		1			4
Appropriate portion of rental expense representative of the interest factor		8			36			37			27			17		47			51
Total fixed charges	$	172		$	677		$	688		$	413		$	66	$	181		$	247
Earnings
(Loss)/income from continuing operations before income taxes and equity in net (loss)/income of affiliates	$	—		$	(510	)	$	(266	)	$	(390	)	$	19	$	194		$	310
Fixed charges per above		172			677			688			413			66		181			247
Amortization of capitalized interest		1			2			1			1			1		1			—
Dividends received from affiliates		4			11			8			4			8		11			11
(Income)/loss attributable to noncontrolling interests		(1	)		—			—			—			—		—			5
Interest capitalized		(1	)		(2	)		(1	)		—			—		(1	)		(4	)
Total earnings	$	175		$	178		$	430		$	28		$	94	$	386		$	569
Ratio of earnings to fixed charges		1.0			(a	)		(a	)		(a	)		1.4		2.1			2.3

(a) Earnings for the years ended December 31, 2008 and 2007 and for the successor period of May 24, 2006 to December 31, 2006 were inadequate to cover fixed charges by $499 million, $258 million and $385 million, respectively.