Share Repurchase Program (Tables)

12 Months Ended

Dec. 31, 2013

Share Repurchase Program Tables [Abstract]

Share Repurchase Program [Table Text Block]

The table below represents shares repurchased under this repurchase program.

	Number of Shares Purchased		Average Price Paid
	2013	2012		2013		2012
First quarter	2,881,400	3,917,369	$	136.58	$	110.64
Second quarter	3,061,470	3,770,528		151.42		110.02
Third quarter	3,666,894	3,098,812		156.77		122.13
Fourth quarter	4,929,055	2,033,750		159.36		121.81
Total	14,538,819	12,820,459	$	152.52	$	115.01