CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock, par value $1	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Earnings (Loss)	Treasury Stock
Balance at beginning of year at Dec. 31, 2020	$ 3,385,773	$ 258,982	$ 868,882	$ 8,608,284	$ (153,254)	$ (6,197,121)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,123,818			1,123,818
Dividends paid	(286,896)			(286,896)
Common stock issued for the exercise of share-based awards	(41,924)	475	(42,399)
Stock-based compensation expense	31,111		31,111
Common stock acquired, including accelerated share repurchase program	(21,637)					(21,637)
Other comprehensive (loss) earnings , net of tax	(798)				(798)
Other	81		42	39
Balance at end of year 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	1,065,376			1,065,376
Dividends paid	(287,551)			(287,551)
Common stock issued for the exercise of share-based awards	(14,637)	187	(14,824)
Stock-based compensation expense	30,821		30,821
Common stock acquired, including accelerated share repurchase program	(585,000)		(6,073)			(578,927)
Other comprehensive (loss) earnings , net of tax	(112,171)				(112,171)
Balance at end of year 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	1,056,828			1,056,828
Dividends paid	(284,297)			(284,297)
Common stock issued for the exercise of share-based awards	(12,137)	198	(12,335)
Stock-based compensation expense	31,465		31,465
Other comprehensive (loss) earnings , net of tax	28,357				28,357
Other	23			23
Balance at end of year at Dec. 31, 2023	$ 5,106,605	$ 259,842	$ 886,690	$ 10,995,624	$ (237,866)	$ (6,797,685)