Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 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 weighted-average fair value of the performance-based and market-vesting awards issued during the six months ended June 30, 2013 and the market-vesting awards issued in the six months ended June 30, 2012 were as follows:

	Six Months Ended   June 30,
	2013	2012
Expected volatility of stock price	43%	49%
Risk-free interest rate	0.39%	0.38% - 0.42%
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:

		RSUs				Options
		Number of RSUs (in 000s)		Weighted Average Fair Value		Number of Options (in 000s)		Weighted Average Exercise Price
Balance at January 1, 2013		3,497		$	13.64	1,901		$	2.89
	Granted at fair market value	1,117		20.99		—		—
	Vested/exercised (a)	(1,104	)	12.72		(717	)	3.45
	Canceled	(47	)	14.12		(3	)	27.40
Balance at June 30, 2013 (b) (c)		3,463		$	16.30	1,181		$	2.49

__________

^(a)  During the six months ended June 30, 2013, 436,000 market-vesting restricted stock units vested. Stock options exercised during the six months ended June 30, 2013 had an intrinsic value of $17 million.

^(b)  As of June 30, 2013, the Company’s outstanding RSUs had an aggregate intrinsic value of $100 million; aggregate unrecognized compensation expense related to RSUs amounted to $37 million; and the balance of RSUs at June 30, 2013, consists of 1,374,000 related to time-based awards and 2,089,000 related to market-vesting and performance-based awards. Approximately 9,000 time-based restricted stock units and 3,000 market-vesting restricted stock units are eligible to vest in 2013, if applicable service criteria are satisfied.

^(c)  As of June 30, 2013, the Company’s outstanding stock options had aggregate intrinsic value of $31 million; there were 1,172,000 “in-the-money” stock options; and aggregate unrecognized compensation expense related to unvested stock options was immaterial. 1,117,000 stock options are exercisable as of June 30, 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 June 30, 2013 (in thousands of shares):

Range of Exercise Prices	Weighted Average Contractual  Life (years)	Number of Options
Less than $5.00	5.6	1,012
$5.01 to $10.00	0	—
$10.01 to $15.00	6.6	160
$15.01 to $20.00	0	—
$20.01 and above	1.3	9
Total	5.7	1,181