CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common stock $1 par value	Additional paid-in capital	Retained earnings	Accumulated other comprehensive loss	Treasury stock
Beginning balance at Dec. 31, 2021	$ 4,189,528	$ 259,457	$ 857,636	$ 9,445,245	$ (154,052)	$ (6,218,758)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	801,797			801,797
Dividends paid	(216,636)			(216,636)
Common stock issued for the exercise of share-based awards	(12,278)	149	(12,427)
Stock-based compensation expense	24,657		24,657
Common stock acquired, including accelerated share repurchase program	(585,000)		(100,000)			(485,000)
Other comprehensive loss, net of tax	(210,642)				(210,642)
Ending balance at Sep. 30, 2022	3,991,426	259,606	769,866	10,030,406	(364,694)	(6,703,758)
Beginning balance at Jun. 30, 2022	4,388,523	259,601	863,717	9,816,960	(247,997)	(6,303,758)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	286,026			286,026
Dividends paid	(72,580)			(72,580)
Common stock issued for the exercise of share-based awards	(172)	5	(177)
Stock-based compensation expense	6,326		6,326
Common stock acquired, including accelerated share repurchase program	(500,000)		(100,000)			(400,000)
Other comprehensive loss, net of tax	(116,697)				(116,697)
Ending balance at Sep. 30, 2022	3,991,426	259,606	769,866	10,030,406	(364,694)	(6,703,758)
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 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 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)