Share Repurchase Program (Tables)

3 Months Ended

Mar. 31, 2014

Equity [Abstract]

Class of Treasury Stock

The following table summarizes the board approvals for increases to the program and the total available under the program:

Date	Increase			Total program
September 2010	$	100	million	$	100	million
December 2011	$	200	million	$	300	million
December 2012	$	200	million	$	500	million
December 2013	$	200	million	$	700	million