Exhibit 12

Computation of Earnings to Fixed Charges

Five-Year Ratio of Earnings to Fixed Charges:	Three Months Ended March 31, 2008			2007			2006			2005			2004			2003
Dollars in Millions
Earnings
Earnings from continuing operations before minority interest and income taxes	$	1,290		$	3,534		$	2,400		$	4,304		$	4,210		$	4,529
Less:
Equity in net income of affiliates, net of losses of equity investees		164			524			474			334			273			151
Income adjusted for equity income		1,126			3,010			1,926			3,970			3,937			4,378
Add:
Fixed charges		95			504			566			408			369			361
Distributed income of equity investments		113			488			439			383			278			155
Less:
Capitalized interest		(7	)		(27	)		(18	)		(9	)		(10	)		(35	)
Total Earnings	$	1,327		$	3,975		$	2,913		$	4,752		$	4,574		$	4,859
Fixed Charges
Interest and debt expense	$	73		$	422		$	498		$	349		$	310		$	277
Capitalized interest		7			27			18			9			10			35
One-third of rental expense (1)		15			55			50			50			49			49
Total Fixed Charges	$	95		$	504		$	566		$	408		$	369		$	361
Ratio of Earnings to Fixed Charges		13.97			7.89			5.15			11.65			12.40			13.46

⁽¹⁾ Rents included in the computation consist of one-third of rental expense which the Company believes to be a conservative estimate of an interest factor in its leases, which are not material.