Exhibit 12.1

Computation of Ratio of Earnings to Fixed Charges
($ in thousands)

	Three Months
	Ended
	September 30,			Year Ended December 31,
	2008			2007			2006			2005			2004			2003
Income from continuing operations before income taxes (a)	$	457,061		$	1,427,289		$	1,237,729		$	618,231		$	411,946		$	188,632
Fixed charges:
Interest expense (b)		66,993			183,128			109,216			80,189			63,467			76,447
Capitalized Interest		11,336			2,624			2,483			2,072			3,465			3,020
Interest factor portion of rentals (c)		11,839			43,212			30,275			23,290			13,991			13,581
Total fixed charges		90,168			228,964			141,974			105,551			80,923			93,048
Less: Capitalized Interest		(11,336	)		(2,624	)		(2,483	)		(2,072	)		(3,465	)		(3,020	)
Earnings before income taxes and fixed charges	$	535,893		$	1,653,629		$	1,377,220		$	721,710		$	489,404		$	278,660
Ratio of earnings to fixed charges		5.94			7.22			9.70			6.84			6.05			2.99

(a)	Income from continuing operations before income taxes has been adjusted to include only distributed income of less-than-fifty-percent-owned persons.
(b)	Interest expense consists of interest expense incurred from continuing operations and amortization of debt issuance costs.
(c)	Interest factor portion of rentals is estimated to be one-third of rental expense.