Equity-based Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2011

Equity-based Incentive Plans

Schedule of valuation assumptions used in determining the fair value of stock options

	2011			2010			2009
Volatility(1)		65.1 - 66.3	%		66.4 - 67.0	%		67.2 - 67.4	%
Risk-free interest rate(2)		0.4 - 1.4	%		0.8 - 2.0	%		2.1 - 2.2	%
Dividend yield(3)		2.3 - 2.5	%		2.0 - 2.2	%		1.7 - 2.0	%
Expected life (years)(4)		2.8 - 4.1			2.8 - 4.1			2.2 - 3.9

(1)

The volatility is based on the historical volatility of the company's stock.

(2)

The risk-free interest rate is based on the U.S. Treasury strip rate for the expected life of the option.

(3)

The expected dividend yield is based on the company's latest annualized dividend rate and recent historical market prices of the underlying common stock at the date of grant.

(4)

The expected life in years is determined primarily from historical stock option exercise data.

Schedule of stock option activity for all plans

	Options			Weighted Average Exercise Price		Weighted Average Fair Value
Outstanding options as of January 1, 2009		7,986,681		$	10.86	$	3.40
Granted		1,637,107			15.04		5.14
Exercised		(2,807,898	)		5.81		2.57
Forfeited		(326,519	)		15.83		5.92
As of December 31, 2009		6,489,371			13.69		5.09
Granted		2,545,932			14.73		5.81
Exercised		(1,414,153	)		8.11		2.89
Forfeited		(214,757	)		20.35		6.33
As of December 31, 2010		7,406,393			14.91		5.14
Granted		2,742,904			14.34		5.36
Exercised		(1,047,297	)		11.37		4.28
Forfeited		(499,718	)		16.61		6.15
As of December 31, 2011		8,602,282			15.06		5.25

Schedule of information concerning outstanding options, by range of exercise price

Range of Exercise Price	Outstanding Options		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price Outstanding Options		Exercisable Options		Weighted Average Exercise Price Exercisable Options
$0 to $10		1,530,294		1.9	$	5.23		1,530,294	$	5.23
$10 to $15		3,094,843		4.0		13.13		1,498,555		13.76
$15 to $20		2,781,396		3.9		16.39		2,781,396		16.39
$20 to $30		741,037		0.7		24.50		741,037		24.50
$30 to $40		454,712		1.4		37.84		454,712		37.84