Net Income Per Common Share (Tables)

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Calculations For Basic And Diluted Earnings Per Share

The table shows calculations for basic and diluted earnings per share:

(Dollars in millions except share data in thousands)	Three months ended September 30,				Nine months ended September 30,
	2013		2012		2013		2012
Numerator:
Net income—basic and diluted	$	131	$	111	$	395	$	229
Denominator:
Weighted-average common shares outstanding	163,710		162,555		163,454		162,419
Effect of stock-based awards:
Stock options	1,184		563		1,131		441
Nonvested shares	707		739		719		647
Adjusted weighted-average shares	165,601		163,857		165,304		163,507
Earnings per share:
Basic	$	0.80	$	0.69	$	2.42	$	1.41
Diluted	0.79		0.68		2.39		1.40
Number of anti-dilutive stock-based awards	335		5,045		390		6,000