CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018		Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 1,089,002	$ 93,943	[1],[2]	$ 1,221,456	$ 307,715	[1],[2]
Other comprehensive income (loss), net of tax
Net (loss) gain from foreign currency translation	(17,128)	33,380		36,927	(53,805)
Retirement and postretirement benefit plans	2,761	3,390		8,277	10,498
Deferred loss on interest rate hedges reclassified to interest expense	585	585		1,756	1,756
Reclassification of certain tax effects to retained earnings	0	0		0	(30,237)
Other	0	0		0	(3,737)
Other comprehensive income (loss)	(13,782)	37,355		46,960	(75,525)
COMPREHENSIVE INCOME	$ 1,075,220	$ 131,298		$ 1,268,416	$ 232,190

[1] Reclassified to conform to current presentation (see Note A).

[2] Reclassified to conform to current presentation (see Note A).