Share Based Compensation (Tables)

12 Months Ended

Dec. 31, 2011

Share-Based Compensation [Abstract]

Weighted average estimated fair value

	2011			2010			2009
Weighted average estimated fair value	$	13.88		$	11.13		$	7.35
Quarterly dividend rate	$	0.29		$	0.28		$	0.28
Expected term of SAR, in years		4.3			4.3			4.3
Risk-free interest rate		1.6	%		2.0	%		1.7	%
Dividend yield		3.4	%		4.3	%		6.6	%
Expected stock price volatility		41.9	%		41.8	%		36.0	%
Present value of dividends	$	4.76		$	4.55		$	4.58

Data with respect to stock options/SARs activity

	Number of Options/SARs (in thousands)			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (in millions)
Outstanding at beginning of the year		1,971		$	30.47
Granted		418			33.94
Exercised		(384	)		28.39			$	4.5
Forfeited/Cancelled		(23	)		28.16
Expired		(103	)		41.70
Outstanding at end of the year		1,879			31.08		3.7		24.2
Vested and exercisable at end of the year		1,120			32.58		2.5		13.0

Restricted stock and performance share activity

	Number of Share Units Outstanding			Weighted Average Grant-Date Fair Value
Restricted Stock:
Nonvested at beginning of the year		200,876		$	25.30
Granted		200,736			34.47
Vested		(56,160	)		35.24
Forfeited		(11,615	)		28.39
Nonvested at end of the year		333,837			29.04
Performance Shares:
Nonvested at beginning of the year		111,917		$	22.85
Granted		87,570			34.27
Net increase due to estimated performance		25,599			30.58
Vested		(36,652	)		16.90
Nonvested at end of the year		188,434			30.36