Exhibit 12.1

Computation of Ratio Earnings to Fixed Charges

For the nine months ended September 30, 2010, the years ended December 31, 2009, 2008 and 2007,

the Periods from May 24, 2006 to December 31,2006

and January 1, 2006 to May 23, 2006 and the Year ended December 31, 2005

	Successor														Predecessor
	Nine Months Ended September 30, 2010		Year Ended December 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
(IN MILLIONS)
Fixed Charges
Interest expense	$	491	$	655		$	723		$	717		$	410		$	49	$	130
Interest capitalized		—		1			2			—			—			—		1
Appropriate portion of rental expense representative of the interest factor		24		36			36			37			27			17		47
Total fixed charges	$	515	$	692		$	761		$	754		$	437		$	66	$	178
Earnings
Income/(loss) from continuing operations before income taxes and equity in net income/(loss) of affiliates		160		(603	)		(271	)		(354	)		(407	)		2		140
Fixed charges per above		515		692			761			754			437			66		178
Amortization of capitalized interest		—		1			2			1			1			1		1
Dividends received from affiliates		10		11			11			8			4			8		11
Income attributable to noncontrolling interests		1		2			—			—			—			—		—
Interest capitalized		—		(1	)		(2	)		—			—			—		(1	)
Total earnings	$	686	$	102		$	501		$	409		$	35		$	77	$	329
Ratio of earnings to fixed charges		1.3		(a	)		(a	)		(a	)		(a	)		1.2		1.8

(a) Earnings for the years ended December 31, 2009, 2008 and 2007 and for the Successor period of May 24, 2006 to December 31, 2006 were inadequate to cover fixed charges by $590 million, $260 million, $345 million and $402 million, respectively.