Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary Of Share Based Payment Other Than Options Valuation Assumptions

The assumptions used to estimate the fair value of the performance-based and market-vesting awards issued during the three months ended March 31, 2013 and the market-vesting awards issued in the three months ended March 31, 2012 were as follows:

	Three Months Ended   March 31,
	2013	2012
Expected volatility of stock price	43%	49%
Risk-free interest rate	0.39%	0.39%
Expected term of awards	3 years	3 years
Dividend yield	0.0%	0.0%

Stock Based Compensation Activity

The activity related to the Company’s time-based, performance-based and market-vesting restricted stock units (collectively, solely for purposes of the table below, “RSUs”), and stock options consisted of (in thousands of shares):

	RSUs				Options
	Number of RSUs		Weighted Average Fair Value		Number of Options		Weighted Average Exercise Price
Balance at January 1, 2013	3,497		$	13.64	1,901		$	2.89
Granted at fair market value	1,046		20.54		—		—
Vested/exercised (a)	(1,083	)	12.69		(416	)	5.31
Canceled	(47	)	14.12		(3	)	27.40
Balance at March 31, 2013 (b) (c)	3,413		16.06		1,482		2.16

__________

^(a)  During the three months ended March 31, 2013, 429,000 market-vesting and performance-based restricted stock units vested. Stock options exercised during the three months ended March 31, 2013 had an intrinsic value of $8 million.

^(b)  As of March 31, 2013, the Company’s outstanding RSUs had an aggregate intrinsic value of $95 million; aggregate unrecognized compensation expense related to RSUs amounted to $40 million; and the balance of RSUs at March 31, 2013, consists of 1,338,000 related to time-based awards and 2,075,000related to market-vesting and performance-based awards. Approximately 24,000 time-based restricted stock units and 9,000 market-vesting restricted stock units are eligible to vest in 2013, if applicable service criteria are satisfied.

^(c)  As of March 31, 2013, the Company’s outstanding stock options had aggregate intrinsic value of $38 million; there were 1,472,000 “in-the-money” stock options; and aggregate unrecognized compensation expense related to unvested stock options was immaterial. 1,418,000 stock options are exercisable as of March 31, 2013.

Summary Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range

The table below summarizes information regarding the Company’s outstanding stock options as of March 31, 2013 (in thousands of shares):

Range of Exercise Prices	Weighted Average Contractual  Life (years)	Number of Options
Less than $5.00	5.8	1,312
$5.01 to $10.00	0	—
$10.01 to $15.00	6.8	160
$15.01 to $20.00	0	—
$20.01 and above	1.4	10
	5.9	1,482