CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock at Par Value	Capital in Excess of Par Value	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest	Stockholders' Equity, Total [Member]
Balance at Dec. 31, 2017	$ 4,997,940	$ 125,424	$ 1,114,167	$ (1,762,239)	$ 5,596,786	$ (124,883)	$ 48,685
Effect of new accounting principles	0	0	0	0	22,354	(22,354)	0
Consolidated net income (loss)	139,870	0	0	0	139,094	0	776
Other comprehensive income (loss)	45,477	0	0	0	0	45,732	(255)
Amortization of stock-based compensation	13,043	0	13,043	0	0	0	0
Shares issued for stock-based compensation awards	4,997	0	(22,102)	27,099	0	0	0
Repurchases of common stock	(52,513)	0	0	(52,513)	0	0	0
Balance at Mar. 31, 2018	5,148,814	125,424	1,105,108	(1,787,653)	5,758,234	(101,505)	49,206
Balance at Dec. 31, 2017	4,997,940	125,424	1,114,167	(1,762,239)	5,596,786	(124,883)	48,685
Consolidated net income (loss)	310,910
Other comprehensive income (loss)	(100,484)
Balance at Jun. 30, 2018	5,167,307	125,424	1,117,389	(1,806,362)	5,928,149	(245,809)	48,516
Balance at Mar. 31, 2018	5,148,814	125,424	1,105,108	(1,787,653)	5,758,234	(101,505)	49,206
Consolidated net income (loss)	171,040	0	0	0	169,915	0	1,125
Other comprehensive income (loss)	(145,963)	0	0	0	0	(144,304)	(1,658)	$ (145,962)
Amortization of stock-based compensation	12,619	0	12,619	0	0	0	0
Shares issued for stock-based compensation awards	991	0	(338)	1,329	0	0	0
Repurchases of common stock	(20,038)	0	0	(20,038)	0	0	0
Distributions	(157)	0	0	0	0	0	(157)
Balance at Jun. 30, 2018	5,167,307	125,424	1,117,389	(1,806,362)	5,928,149	(245,809)	48,516
Balance at Dec. 31, 2018	5,376,366	125,424	1,135,934	(1,972,254)	6,335,335	(299,449)	51,376
Consolidated net income (loss)	142,414	0	0	0	140,735	0	1,679
Other comprehensive income (loss)	10,534	0	0	0	0	11,182	(648)
Amortization of stock-based compensation	19,090	0	19,090	0	0	0	0
Shares issued for stock-based compensation awards	6,931	0	(26,267)	33,198	0	0	0
Repurchases of common stock	(53,925)	0	0	(53,925)	0	0	0
Balance at Mar. 30, 2019	5,501,410	125,424	1,128,757	(1,992,981)	6,476,070	(288,267)	52,407
Balance at Dec. 31, 2018	5,376,366	125,424	1,135,934	(1,972,254)	6,335,335	(299,449)	51,376
Consolidated net income (loss)	(405,337)
Other comprehensive income (loss)	18,607
Balance at Jun. 29, 2019	4,822,715	125,424	1,136,649	(2,139,743)	5,927,104	(280,709)	53,990
Balance at Mar. 30, 2019	5,501,410	125,424	1,128,757	(1,992,981)	6,476,070	(288,267)	52,407
Consolidated net income (loss)	(547,751)	0	0	0	(548,966)	0	1,215
Other comprehensive income (loss)	8,073	0	0	0	0	7,558	515
Amortization of stock-based compensation	8,539	0	8,539	0	0	0	0
Shares issued for stock-based compensation awards	2,693	0	(647)	3,340	0	0	0
Repurchases of common stock	(150,102)	0	0	(150,102)	0	0	0
Distributions	(147)	0	0	0	0	0	(147)
Balance at Jun. 29, 2019	$ 4,822,715	$ 125,424	$ 1,136,649	$ (2,139,743)	$ 5,927,104	$ (280,709)	$ 53,990