CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common stock $1 par value	Additional paid-in capital	Retained earnings	Accumulated other comprehensive earnings (loss)	Treasury stock
Beginning balance at Dec. 31, 2022	$ 4,286,366	$ 259,644	$ 867,560	$ 10,223,070	$ (266,223)	$ (6,797,685)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	760,566			760,566
Dividends paid	(212,882)			(212,882)
Common stock issued for the exercise of share-based awards	(12,334)	191	(12,525)
Stock-based compensation expense	25,468		25,468
Other comprehensive earnings (loss), net of tax	(14,708)				(14,708)
Other, net	24			24
Ending balance at Sep. 30, 2023	4,832,500	259,835	880,503	10,770,778	(280,931)	(6,797,685)
Beginning balance at Jun. 30, 2023	4,662,105	259,818	875,041	10,552,433	(227,502)	(6,797,685)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	289,753			289,753
Dividends paid	(71,408)			(71,408)
Common stock issued for the exercise of share-based awards	(1,266)	17	(1,283)
Stock-based compensation expense	6,745		6,745
Other comprehensive earnings (loss), net of tax	(53,429)				(53,429)
Ending balance at Sep. 30, 2023	4,832,500	259,835	880,503	10,770,778	(280,931)	(6,797,685)
Beginning balance at Dec. 31, 2023	5,106,605	259,842	886,690	10,995,624	(237,866)	(6,797,685)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,261,143			1,261,143
Dividends paid	(212,367)			(212,367)
Common stock issued for the exercise of share-based awards	(10,726)	164	(10,890)
Stock-based compensation expense	32,969		32,969
Common stock acquired, including accelerated share repurchase program and excise tax	(504,250)		(21,771)			(482,479)
Other comprehensive earnings (loss), net of tax	24,625				24,625
Ending balance at Sep. 30, 2024	5,697,999	260,006	886,998	12,044,400	(213,241)	(7,280,164)
Beginning balance at Jun. 30, 2024	5,363,623	259,971	829,335	11,768,023	(266,771)	(7,226,935)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	347,100			347,100
Dividends paid	(70,723)			(70,723)
Common stock issued for the exercise of share-based awards	(3,821)	35	(3,856)
Stock-based compensation expense	8,290		8,290
Common stock acquired, including accelerated share repurchase program and excise tax	0		53,229			(53,229)
Other comprehensive earnings (loss), net of tax	53,530				53,530
Ending balance at Sep. 30, 2024	$ 5,697,999	$ 260,006	$ 886,998	$ 12,044,400	$ (213,241)	$ (7,280,164)