Stock Incentive Plans (Tables)

6 Months Ended

Jun. 30, 2011

Stock Incentive Plans (Tables) [Abstract]

Fair value of each option grant estimated on weighted-average assumptions

	Six Months Ended
	June 30, 2011			June 30, 2010
Dividend yield		5.74	%		6.28	%
Expected volatility		34.80	%		34.08	%
Risk-free interest rate		2.87	%		3.23	%
Expected life (in years)		7.0			7.0
Weighted-average fair value	$	9.60		$	7.82

Summary of stock options activity

	Number of			Weighted		Weighted Average		Aggregate
	Shares			Average		Remaining		Intrinsic
Stock Options	(000's)			Exercise Price		Contract Life (years)		Value ($000's)
Options at beginning of year		1,207		$	39.45		8.0
Options granted		289			49.17
Options exercised		(117	)		37.68
Options terminated		(6	)		42.87
Options at end of period		1,373		$	41.63		7.7	$	14,835
Options exercisable at end of period		542		$	38.74		6.1	$	7,421
Weighted average fair value of options granted during the period				$	9.60

Non-vested stock incentive awards

	Stock Options					Restricted Stock
	Number of			Weighted Average		Number of			Weighted Average
	Shares			Grant Date		Shares			Grant Date
	(000's)			Fair Value		(000's)			Fair Value
Non-vested at December 31, 2010		768		$	6.19		420		$	41.09
Vested		(220	)		6.12		(145	)		41.86
Granted		289			9.60		242			49.19
Terminated		(6	)		5.54		(6	)		26.31
Non-vested at June 30, 2011		831		$	7.40		511		$	44.86