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Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Employee Benefit Plans (Tables) [Abstract]

Activity under all stock option incentive plans


		Options Outstanding
										Weighted				Weighted
										Average				Average
						Exercise				Exercise				Grant-Date
		Number of				Price Range				Price				Fair Value
		Shares				per Share				per Share				per Share
		(In millions, except per share data)
Balance at December 31, 2010			78			$	0.01 - 48.63			$	27.05			$	15.05
Options granted⁽¹⁾			—				45.82 - 45.82				45.82				11.72
Options cancelled			(2	)			0.55 - 46.01				28.36				11.86
Options exercised			(6	)			0.01 - 45.05				23.92				14.77

Balance at June 30, 2011			70			$	0.01 - 48.63			$	27.31			$	15.20


(1)		Less than one million stock options were granted in the six months ended June 30, 2011.

Restricted stock unit activity


		Restricted Stock Units
		Outstanding
						Weighted
						Average
						Grant-Date
		Number of				Fair Value
		Shares				per Share
		(In millions, except per share data)
Balance at December 31, 2010			28			$	27.17
Restricted stock units granted			9				43.92
Restricted stock units cancelled			(1	)			31.21
Restricted stock units vested			(7	)			28.04

Balance at June 30, 2011			29			$	32.14

Per share weighted average fair value assumptions for stock options and employee stock purchase rights


		Employee
		Stock				Employee
		Purchase				Stock
		Rights				Options
Expected life (in years)			1.85				3.60
Implied Volatility			0.36				0.34
Risk-free interest rate			0.56	%			1.56	%
Expected dividend yield			0.99	%			0.80	%
Weighted average fair value		$	11.11			$	11.72

Details of total stock-based compensation expense by statement functional line


		Three Months Ended								Six Months Ended
		June 30,								June 30,
		2011				2010				2011				2010
		(In millions)
Cost of product revenue		$	6			$	5			$	13			$	12
Research and development			97				84				199				173
Selling, general and administrative			33				30				69				61

Unearned stock-based compensation estimated to be expensed related to unvested share-based payment awards


		2011				2012				2013				2014				2015				Total
		(In millions)
Unearned stock-based compensation		$	238			$	358			$	227			$	114			$	13			$	950