CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock at Par Value [Member]	Capital in Excess of Par Value [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2013	$ 4,184,828	$ 125,424	$ 1,071,075	$ (920,528)	$ 3,678,709	$ 225,552	$ 4,596
Consolidated net income	498,390	0	0	0	498,045	0	345
Other comprehensive loss	(290,169)	0	0	0	0	(290,169)	0
Amortization of stock-based compensation	41,930	0	41,930	0	0	0	0
Shares issued for stock-based compensation awards	21,788	0	(33,830)	55,618	0	0	0
Tax benefits related to stock-based compensation awards	6,907	0	6,907	0	0	0	0
Repurchases of common stock	(304,763)	0	0	(304,763)	0	0	0
Balance at Dec. 31, 2014	4,158,911	125,424	1,086,082	(1,169,673)	4,176,754	(64,617)	4,941
Consolidated net income	500,486	0	0	0	497,726	0	2,760
Other comprehensive loss	(218,636)	0	0	0	0	(220,089)	1,453
Amortization of stock-based compensation	47,274	0	47,274	0	0	0	0
Shares issued for stock-based compensation awards	14,900	0	(31,138)	46,038	0	0	0
Tax benefits related to stock-based compensation awards	5,795	0	5,795	0	0	0	0
Repurchases of common stock	(356,434)	0	0	(356,434)	0	0	0
Acquisition of non-controlling interest	47,451	0	0	0	0	0	47,451
Purchase of subsidiary shares from noncontrolling interest	(4,718)	0	(699)	0	0	0	(4,019)
Distributions	(218)	0	0	0	0	0	(218)
Balance at Dec. 31, 2015	4,194,811	125,424	1,107,314	(1,480,069)	4,674,480	(284,706)	52,368
Consolidated net income	524,723	0	0	0	522,750	0	1,973
Other comprehensive loss	(101,105)	0	0	0	0	(99,148)	(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	$ 4,465,620	$ 125,424	$ 1,112,114	$ (1,637,476)	$ 5,197,230	$ (383,854)	$ 52,182