Share Repurchase Program (Tables)

12 Months Ended

Dec. 31, 2010

Share Repurchase Program Tables [Abstract]

Share Repurchase Program [Table Text Block]

	Number of Shares Purchased		Average Price Paid
	2011	2010		2011		2010
First quarter	2,636,178	-	$	94.10	$	-
Second quarter	3,576,399	6,496,400		100.75		71.74
Third quarter	4,681,535	7,643,400		91.45		73.19
Fourth quarter	3,885,658	2,500,596		98.16		89.39
Total	14,779,770	16,640,396	$	95.94	$	75.06
Remaining number of shares that may yet be repurchased				27,856,408