Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Schedule of reconciliation of basic and diluted earnings per share

A reconciliation of basic and diluted EPS, together with the related shares outstanding in millions for the years ended December 31, is as follows:

	2013		2012		2011
Net income available to common shareholders	$	491	$	460	$	457
Weighted average shares
Basic shares	120		121		121
Effect of dilutive securities—options outstanding	1		1		2
Diluted shares	121		122		123
Net income per share—Basic	$	4.09	$	3.80	$	3.78
Net income per share—Diluted	$	4.06	$	3.77	$	3.72