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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2012

Stock-Based Compensation [Abstract]

Stock option activity

		Number of Shares Underlying Options (in thousands)				Weighted Average Exercise Price Per Share				Weighted Average Remaining Contractual Term				Aggregate Intrinsic Value (in millions)
Outstanding at beginning of period			3,805			$	5.10				2.94
Granted			1,024				8.81				4.71
Exercised			(727	)			4.63				1.63
Forfeited			(5	)			8.33				4.45
Outstanding at end of period			4,097			$	6.10				3.15			$	8.42
Exercisable at end of period			3,185			$	5.52				2.81			$	8.10

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ 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 (c)(1)

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

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