CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (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 beginning of year at Dec. 31, 2009	$ 4,083,608	$ 247,342	$ 497,291	$ 5,453,022	$ 84,842	$ (2,198,889)
Net earnings	700,104	0	0	700,104	0	0
Dividends paid	(200,099)	0	0	(200,099)	0	0
Common stock issued for the exercise of stock options and SARs	71,448	1,983	69,465	0	0	0
Tax benefit from the exercise of stock options	6,466	0	6,466	0	0	0
Stock-based compensation expense	21,464	0	21,464	0	0	0
Common stock issued, net of cancellations	1,807	36	1,771	0	0	0
Common stock acquired	(123,555)	0	0	0	0	(123,555)
Other comprehensive earnings, net of tax	(34,681)	0	0	0	(34,681)	0
Balance at end of year at Dec. 31, 2010	4,526,562	249,361	596,457	5,953,027	50,161	(2,322,444)
Net earnings	895,243	0	0	895,243	0	0
Dividends paid	(219,154)	0	0	(219,154)	0	0
Common stock issued for the exercise of stock options and SARs	26,218	1,155	25,063	0	0	0
Tax benefit from the exercise of stock options	8,752	0	8,752	0	0	0
Stock-based compensation expense	25,391	0	25,391	0	0	0
Common stock issued, net of cancellations	4,856	76	4,780	0	0	0
Common stock acquired	(242,488)	0	0	0	0	(242,488)
Other comprehensive earnings, net of tax	(97,671)	0	0	0	(97,671)	0
Additional Paid In Capital Other Adjustment	2,846	0	2,846	0	0	0
Balance at end of year at Dec. 31, 2011	4,930,555	250,592	663,289	6,629,116	(47,510)	(2,564,932)
Net earnings	811,070	0	0	811,070	0	0
Dividends paid	(240,959)	0	0	(240,959)	0	0
Common stock issued for acquisition	100,610	1,636	98,974	0	0	0
Common stock issued for the exercise of stock options and SARs	19,081	1,871	17,210	0	0	0
Tax benefit from the exercise of stock options	22,771	0	22,771	0	0	0
Stock-based compensation expense	31,251	0	31,251	0	0	0
Common stock issued, net of cancellations	1,202	20	1,182	0	0	0
Common stock acquired	(748,955)	0	0	0	0	(748,955)
Other comprehensive earnings, net of tax	(7,396)	0	0	0	(7,396)	0
Balance at end of year at Dec. 31, 2012	$ 4,919,230	$ 254,119	$ 834,677	$ 7,199,227	$ (54,906)	$ (3,313,887)