Stock Options (Tables)

9 Months Ended

Sep. 30, 2013

The fair value of stock option awards was estimated using the Black-Scholes option pricing model with the following assumptions and weighted-average fair values:


	Nine Months Ended Sept. 30
	2013			2012
Weighted-average fair value of grant	$	8.76		$	9.73
Risk-free interest rate		.54	%		.54	%
Expected volatility		50.19	%		71.29	%
Expected life of options in years		3.69			3.65
Expected dividend yield		—			—

Summary of Stock Option Activity

A summary of stock option activity for the nine months ended September 30, 2013 follows (shares in thousands):


Options	Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (years)		Aggregate Intrinsic Value ($ in millions)
Outstanding at December 31, 2012		2,766		$	35.50
Granted		755			23.64
Exercised		(432	)		10.47
Forfeited and expired		(230	)		76.10

Outstanding at Sept. 30, 2013		2,859			32.84		2.66	$	9.4

Expected to vest at Sept. 30, 2013		1,341			24.39		3.77		3.6

Exercisable at Sept. 30, 2013		1,483			40.72		1.63		5.8

Summary of Restricted Stock Unit Activity

A summary of restricted stock unit activity for the nine months ended September 30, 2013 follows (shares in thousands):


	Restricted Stock Units			Weighted- Average Grant-Date Fair Value
Outstanding at December 31, 2012		361		$	25.12
Granted		215			23.44
Vested		(150	)		28.84
Forfeited and expired		(21	)		27.83

Outstanding at Sept. 30, 2013		405			23.22