Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Stock-Based Compensation

Summary of the company's stock option activity

A summary of the company’s stock option activity is as follows (in millions, except weighted average exercise price per share):

	Shares		Weighted Average Exercise Price		Aggregate Intrinsic Value
Options outstanding as of January 1, 2011	7.1		$	13.29
Granted	1.0		19.78
Exercised	(0.2	)	6.94
Cancelled	(0.4	)	10.75
Options outstanding as of December 31, 2011	7.5		$	14.44
Granted	0.7		16.27
Exercised	(0.7	)	6.53
Cancelled	(0.1	)	20.53
Options outstanding as of December 31, 2012	7.4		$	15.27	$	28.7
Options exercisable as of:
December 31, 2012	4.1		$	17.03	$	15.8

Schedule of the options outstanding and exercisable by range of exercise prices

The following table shows the options outstanding and exercisable by range of exercise prices at December 31, 2012 (in millions, except range of exercise price per share, weighted average remaining contractual life and weighted average exercise price):

	Outstanding	Weighted Average Remaining Contractual	Weighted Average		Exercisable	Weighted Average
Range of Exercise Price per Share	Options	Life (Years)	Exercise Price		Options	Exercise Price
$4.23 - $7.49	1.7	6.0	$	4.42	0.8	$	4.42
$7.50 - $8.47	0.2	1.2	7.64		0.2	7.64
$8.48 - $10.20	0.6	2.3	10.14		0.6	10.14
10.21 - $16.28	2.2	7.2	12.73		0.6	11.01
$16.29 - $23.17	1.3	6.8	19.52		0.6	19.23
$23.18 - $27.03	0.5	3.3	26.11		0.5	26.11
$27.04 - $29.52	0.5	4.2	29.51		0.5	29.51
$29.53 - $47.84	0.4	5.0	38.91		0.3	38.86
	7.4	5.7	$	15.27	4.1	$	17.03

Schedule of the assumptions used to estimate the fair value of each option grant

The fair value of each option grant was estimated at the date of grant using the Black-Scholes option-pricing method with the following assumptions:

	2012		2011		2010
Expected Life (years)	6.0		6.0		6.0
Risk-free Interest rate	1.1	%	2.8	%	2.9	%
Expected volatility	55.0	%	52.0	%	50.0	%
Expected dividend yield	0.6	%	0.7	%	1.1	%

Restricted Stock

Stock-Based Compensation

Schedule of nonvested share activity

A summary of activity for restricted share awards for the year ended December 31, 2012 is as follows (in millions except weighted average grant date fair value):

	Shares		Weighted Average Grant Date Fair Value
Unvested as of January 1, 2012	0.9		$	12.65
Granted	0.2		16.22
Vested	(0.2	)	6.30
Cancelled	—		—
Unvested as of December 31, 2012	0.9		$	14.86

Performance shares

Stock-Based Compensation

Schedule of nonvested share activity

A summary of activity for performance share activity for the year ended December 31, 2012 is as follows (in millions except weighted average grant date fair value):

	Shares	Weighted Average Grant Date Fair Value
Unvested as of January 1, 2012	0.4	$	19.00
Granted	0.3	17.62
Vested	—	—
Cancelled	—	—
Unvested as of December 31, 2012	0.7	$	18.41