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	226,153			226,153
Dividends paid	(72,203)			(72,203)
Common stock issued for the exercise of share-based awards	(10,046)	116	(10,162)
Stock-based compensation expense	11,113		11,113
Other comprehensive earning (loss), net of tax	(14,769)				(14,769)
Ending balance at Mar. 31, 2022	4,329,776	259,573	858,587	9,599,195	(168,821)	(6,218,758)
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	228,574			228,574
Dividends paid	(70,773)			(70,773)
Common stock issued for the exercise of share-based awards	(12,987)	150	(13,137)
Stock-based compensation expense	12,282		12,282
Other comprehensive earning (loss), net of tax	17,075				17,075
Other, net	24			24
Ending balance at Mar. 31, 2023	$ 4,460,561	$ 259,794	$ 866,705	$ 10,380,895	$ (249,148)	$ (6,797,685)