Exhibit 12.1

Computation of Ratio of Earnings to Fixed Charges

	Three Months Ended March 31,
(dollars in millions)	2010		2009
Earnings before income taxes	$	1,891	$	1,537
Fixed charges		147		155
Total earnings available for fixed charges	$	2,038	$	1,692
Fixed Charges:
Interest expense	$	125	$	131
Interest component of rental payments		22		24
Total fixed charges	$	147	$	155
Ratio of earnings to fixed charges		13.9		10.9

The ratio of earnings to fixed charges is computed by dividing total earnings available for fixed charges by the fixed charges. For purposes of computing this ratio, fixed charges consist of interest expense plus the interest factor in rental expense.