Exhibit 12

Computation of Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends

	For the Years Ended
	December 31,
	2009			2008			2007			2006			2005
	(in millions)
Earnings:
Income (loss) from continuing operations before income taxes	($	3,494	)	($	4,060	)	($	29,775	)	$	1,483		$	1,291
Equity in (income) loss of unconsolidated investments		803			64			3			6			(107	)
Fixed charges		2,047			2,094			2,213			2,242			1,742
Interest capitalized		(12	)		(123	)		(127	)		(113	)		(53	)
Amortization of interest capitalized		85			80			72			107			98
Earnings (loss), as adjusted		(571	)		(1,945	)		(27,614	)		3,725			2,971
Fixed charges:
Interest expense, gross		1,450			1,362			1,433			1,533			1,294
Interest capitalized		12			123			127			113			53
Portion of rentals representative of interest		585			609			653			596			395
Fixed charges		2,047			2,094			2,213			2,242			1,742
Preferred stock dividends paid		0			0			0			3			11
Total fixed charges		2,047			2,094			2,213			2,242			1,742
Total fixed charges and preferred stock dividends		2,047			2,094			2,213			2,245			1,753
Ratio of combined earnings to fixed charges and preferred stock dividends		—	(1)		—	(2)		—	(3)		1.66			1.69

(1) Earnings, as adjusted were inadequate to cover fixed charges by $2.6 billion in 2009.

(2) Earnings, as adjusted were inadequate to cover fixed charges by $4.0 billion in 2008.

(3) Earnings, as adjusted were inadequate to cover fixed charges by $29.8 billion in 2007.

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