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 Interests
Balance at Dec. 31, 2015	$ 4,194,811	$ 125,424	$ 1,107,314	$ (1,480,069)	$ 4,674,480	$ (284,706)	$ 52,368
Effect of new accounting principles	(2,685)	0	0	0	(2,685)	0	0
Consolidated net income	524,788	0	0	0		0	1,973
Other comprehensive income (loss)	(100,790)	0	0	0	0	(98,833)	(1,957)
Amortization of stock-based compensation	39,825	0	39,825	0	0	0	0
Shares issued for stock-based compensation awards	18,967	0	(40,072)	59,039	0	0	0
Tax benefits related to stock-based compensation awards	5,047	0	5,047	0	0	0	0
Repurchases of common stock	(216,446)	0	0	(216,446)	0	0	0
Distributions	(202)	0	0	0	0	0	(202)
Balance at Dec. 31, 2016	4,463,315	125,424	1,112,114	(1,637,476)	5,194,610	(383,539)	52,182
Consolidated net income	407,376	0	0	0		0	5,200
Other comprehensive income (loss)	263,663	0	0	0	0	258,656	5,007
Amortization of stock-based compensation	39,122	0	39,122	0	0	0	0
Shares issued for stock-based compensation awards	22,195	0	(27,281)	49,476	0	0	0
Purchase of subsidiary shares from non-controlling interest	(23,350)	0	(9,788)	0	0	0	(13,562)
Repurchases of common stock	(174,239)	0	0	(174,239)	0	0	0
Distributions	(142)	0	0	0	0	0	(142)
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	721,574	0	0	0		0	5,379
Other comprehensive income (loss)	(154,743)	0	0	0	0	(152,212)	(2,531)
Amortization of stock-based compensation	46,238	0	46,238	0	0	0	0
Shares issued for stock-based compensation awards	8,819	0	(24,471)	33,290	0	0	0
Repurchases of common stock	(243,305)	0	0	(243,305)	0	0	0
Distributions	(157)	0	0	0	0	0	(157)
Balance at Dec. 31, 2018	$ 5,376,366	$ 125,424	$ 1,135,934	$ (1,972,254)	$ 6,335,335	$ (299,449)	$ 51,376