Six Months Ended June 30,
		2007				2006
Earnings available to cover fixed charges:
Income before income taxes and cumulative effect of accounting change		$	293			$	269
Plus: Fixed charges			95				72
Amortization of capitalized interest			6				3
Less: Capitalized interest			12				6
Earnings available to cover fixed charges		$	382			$	338
Fixed charges (*):
Interest, including amortization of deferred financing costs		$	83			$	62
Interest portion of rental payments			12				10
Total fixed charges		$	95			$	72
Ratio of earnings to fixed charges			4.02x				4.69x

(*)	Consists of interest expense on all indebtedness (including amortization of deferred financing costs) and the portion of operating lease rental expense that is representative of the interest factor.

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