Exhibit 12.1

Ratio of Earnings to Fixed Charges

	Year Ended December 31,
	2005			2004			2003			2002			2001
	(in millions)
Income (loss) before income taxes	$	428		$	355		$	39		$	(151	)	$	(567	)
Equity in losses of equity-method investees		—			—			—			4			31
Net income (loss) before equity in losses of equity-method investees		428			355			39			(146	)		(536	)
Plus fixed charges:
Interest expense including amortization of debt issuance costs		92			107			130			143			139
Assumed interest element included in rent expense		5			4			6			6			9
		97			111			136			149			148
Adjusted earnings (loss)		525			466			175			3			(388	)
Fixed charges		(97	)		(111	)		(136	)		(149	)		(148	)
Excess (deficiency) of earnings to cover fixed charges	$	428		$	355		$	39		$	(146	)	$	(536	)
Ratio of earnings to fixed charges (1)		5.41			4.20			1.29			0.02			(2.62	)

(1) The ratio of earnings to fixed charges is computed by dividing (i) income (loss) before income taxes and losses from equity interests, plus fixed charges by (ii) fixed charges.