Quarterly Supplementary Data (Tables)

12 Months Ended

Dec. 31, 2013

Notes To Financial Statements [Abstract]

Unaudited Quarterly Financial Information

This table includes unaudited quarterly financial information for the years ended December 31, 2013 and 2012:

(Dollars in millions except per share data)	Quarter
	1st		2nd		3rd		4th		Full year
2013
Revenues *	$	1,103	$	1,104	$	1,152	$	1,172	$	4,531
Income before income taxes	217		148		182		167		714
Net income	154		110		131		122		517
Net income per common share—basic	0.95		0.67		0.80		0.75		3.16
Net income per common share—diluted	0.94		0.66		0.79		0.74		3.12
2012
Revenues *	$	986	$	1,020	$	1,035	$	1,070	$	4,111
Income before income taxes	112		29		152		273		566
Net income	86		32		111		192		421
Net income per common share—basic	0.53		0.20		0.69		1.18		2.59
Net income per common share—diluted	0.53		0.20		0.68		1.17		2.57