EXHIBIT 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES^(a)

	Three Months Ended March 31,		Year Ended December 31,
(dollars in millions)	2015		2014		2013		2012		2011		2010
Earnings before income taxes	$	2490	$	9,656	$	8,915	$	8,622	$	7,959	$	7,383
Fixed charges		191		753		839		732		594		570
Total earnings available for fixed charges	$	2,681	$	10,409	$	9,754	$	9,354	$	8,553	$	7,953
Fixed Charges:
Interest expense	$	150	$	618	$	708	$	632	$	505	$	481
Interest component of rental payments		41		135		131		100		89		89
Total fixed charges	$	191	$	753	$	839	$	732	$	594	$	570
Ratio of earnings to fixed charges		14.0		13.8		11.6		12.8		14.4		14.0

(a) The Company had no preference equity securities outstanding and did not pay preferred dividends in any of the periods presented. Consequently, the Company’s ratio of earnings to combined fixed charges and preferred stock dividends for each of such periods is identical to the Company’s ratio of earnings to fixed charges as indicated above.

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.