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, 2011	$ 3,675,260	$ 125,382	$ 1,076,275	$ (434,959)	$ 2,772,957	$ 129,157	$ 6,448
Consolidated net income	506,717	0	0	0	506,332	0	385
Other comprehensive income (loss)	15,787	0	0	0	0	15,980	(193)
Amortization of stock-based compensation	34,546	0	34,546	0	0	0	0
Shares issued for stock-based compensation awards	13,372	42	(29,632)	42,962	0	0	0
Tax benefits related to stock-based compensation awards	5,076	0	5,076	0	0	0	0
Repurchases of common stock	(260,870)	0	0	(260,870)	0	0	0
Purchase of subsidiary shares from noncontrolling interest	(2,526)	0	(26)	0	0	0	(2,500)
Balance at Dec. 31, 2012	3,987,362	125,424	1,086,239	(652,867)	3,279,289	145,137	4,140
Consolidated net income	399,876	0	0	0	399,420	0	456
Other comprehensive income (loss)	80,415	0	0	0	0	80,415	0
Amortization of stock-based compensation	36,923	0	36,923	0	0	0	0
Shares issued for stock-based compensation awards	36,014	0	(59,118)	95,132	0	0	0
Tax benefits related to stock-based compensation awards	7,031	0	7,031	0	0	0	0
Repurchases of common stock	(362,793)	0	0	(362,793)	0	0	0
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 income (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