CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (unaudited) (USD $) In Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Earnings [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2011	$ 4,930,555	$ 250,592	$ 663,289	$ 6,629,116	$ (47,510)	$ (2,564,932)
Net earnings	410,164	0	0	410,164	0	0
Dividends paid	(115,714)	0	0	(115,714)	0	0
Common stock issued for acquisition	100,610	1,636	98,974	0	0	0
Common stock issued for options exercised	6,913	880	6,033	0	0	0
Tax benefit from the exercise of stock options	12,440	0	12,440	0	0	0
Stock-based compensation expense	16,565	0	16,565	0	0	0
Common stock acquired	(198,924)	0	0	0	0	(198,924)
Other comprehensive earnings, net of tax	(52,345)	0	0	0	(52,345)	0
Balance at Jun. 30, 2012	$ 5,110,264	$ 253,108	$ 797,301	$ 6,923,566	$ (99,855)	$ (2,763,856)