Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Data [Abstract]

Schedule Of Quarterly Financial Data

	2011												2010
	4th			3rd			2nd			1st			4th			3rd			2nd			1st
Total revenues	$	19,555		$	17,727		$	16,543		$	14,910		$	16,550		$	16,967		$	15,573		$	15,216
Total costs and expenses		(16,261	)		(14,357	)		(13,200	)		(12,049	)		(13,413	)		(13,746	)		(12,540	)		(12,144	)
Earnings from operations		1,597			1,714			1,534			1,000			1,103			1,387			1,307			1,174
Net earnings from continuing operations		1,387			1,094			942			588			1,166			837			789			519
Net gain/(loss) from discontinued operations		6			4			(1	)		(2	)		(2	)					(2	)
Net earnings		1,393			1,098			941			586			1,164			837			787			519
Basic earnings per share from continuing operations		1.85			1.47			1.27			0.79			1.57			1.13			1.07			0.71
Basic earnings per share		1.86			1.47			1.27			0.79			1.57			1.13			1.07			0.71
Diluted earnings per share from continuing operations		1.83			1.46			1.25			0.78			1.56			1.12			1.06			0.70
Diluted earnings per share		1.84			1.46			1.25			0.78			1.56			1.12			1.06			0.70
Cash dividends declared per share		0.86						0.84						0.84						0.84
Common stock sales price per share:
High		74.74			76.20			80.65			74.47			72.49			70.00			76.00			74.53
Low		56.90			56.01			70.29			66.00			61.84			59.48			59.84			54.80
Quarter end		73.35			60.51			73.93			73.93			65.26			66.54			62.75			72.61