CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at beginning of year at Dec. 31, 2015	$ 3,644,575	$ 256,113	$ 928,409	$ (4,972,016)	$ 7,686,642	$ (254,573)
Net earnings	508,892	0	0	0	508,892	0
Dividends paid	(267,739)	0	0	0	(267,739)	0
Common stock issued for the exercise of share-based awards	(15,700)	425	(16,125)	0	0	0
Tax benefit from the exercise of share-based awards	4,964	0	4,964	0	0	0
Stock-based compensation expense	21,015	0	21,015	0	0	0
Other comprehensive earnings (loss), net of tax	(104,753)	0	0	0	0	(104,753)
Other	8,492	0	8,492	0	0	0
Balance at end of year at Dec. 31, 2016	3,799,746	256,538	946,755	(4,972,016)	7,927,795	(359,326)
Net earnings	811,665	0	0	0	811,665	0
Dividends paid	(283,959)	0	0	0	(283,959)	0
Common stock issued for the exercise of share-based awards	(18,443)	454	(18,897)	0	0	0
Tax benefit from the exercise of share-based awards	8,365
Stock-based compensation expense	26,528	0	26,528	0	0	0
Common stock acquired	(105,023)	0	0	(105,023)	0	0
Other comprehensive earnings (loss), net of tax	164,567	0	0	0	0	164,567
Other	(11,901)	0	(11,901)	0	0	0
Balance at end of year at Dec. 31, 2017	4,383,180	256,992	942,485	(5,077,039)	8,455,501	(194,759)
Net earnings	570,267	0	0	0	570,267	0
Dividends paid	(283,570)	0	0	0	(283,570)	0
Stockholders' Equity Note, Spinoff Transaction	(906,815)	0	0	0	(939,743)	32,928
Common stock issued for the exercise of share-based awards	(46,254)	830	(47,084)	0	0	0
Tax benefit from the exercise of share-based awards	14,759
Stock-based compensation expense	24,442	0	24,442	0	0	0
Common stock acquired	(894,977)	0	(24,454)	(870,523)	0	0
Other comprehensive earnings (loss), net of tax	(68,409)	0	0	0	0	(68,409)
Other	(9,373)	0	(9,373)	0	0	0
Balance at end of year at Dec. 31, 2018	2,768,666	257,822	886,016	(5,947,562)	7,815,486	(243,096)
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2018-02 [Member]	0	0	0	0	12,856	(12,856)
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2014-09 [Member]	$ 175	$ 0	$ 0	$ 0	$ 175	$ 0