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Other Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2012

Other Employee Benefit Plans [Abstract]

Schedule of shares purchased in the open market for employees

		Shares purchased				Average price per share
2010			4,836			$	168.86
2011			6,636			$	98.55
2012			6,549			$	71.14

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- Definition

Tabular disclosure of employee stock purchase plan activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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