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]	Foreign Currency Translation Adjustment [Member]	Other [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2009	$ 2,917,297	$ 125,287	$ 1,056,704	$ (179,152)	$ 1,694,517	$ 229,019	$ (9,415)	$ 337
Consolidated net income (loss)	479,625	0	0	0	479,630	0	0	(5)
Foreign currency translation adjustments	(21,110)	0	0	0	0	(21,105)	0	(5)
Unrealized gain (loss) on investment securities, net	5,501	0	0	0	0	0	5,501	0
Unrealized loss on interest rate swaps designated as cash flow hedges, net	0
Employee benefit plan items, net	2,744	0	0	0	0	0	2,744	0
Amortization of stock-based compensation	34,613	0	34,613	0	0	0	0	0
Shares issued for stock-based compensation awards	8,057	50	(26,301)	34,308	0	0	0	0
Tax benefits related to stock-based compensation awards	1,178	0	1,178	0	0	0	0	0
Repurchases of common stock	(173,650)	0	0	(173,650)	0	0	0	0
Purchase of subsidiary shares from noncontrolling interest	(3,060)	0	(2,733)	0	0	0	0	(327)
Balance at Dec. 31, 2010	3,251,195	125,337	1,063,461	(318,494)	2,174,147	207,914	(1,170)	0
Consolidated net income (loss)	599,316	0	0	0	598,810	0	0	506
Foreign currency translation adjustments	(49,384)	0	0	0	0	(49,364)	0	(20)
Unrealized gain (loss) on investment securities, net	(11,886)	0	0	0	0	0	(11,886)	0
Unrealized loss on interest rate swaps designated as cash flow hedges, net	(1,855)	0	0	0	0	0	(1,855)	0
Employee benefit plan items, net	(14,482)	0	0	0	0	0	(14,482)	0
Amortization of stock-based compensation	39,225	0	39,225	0	0	0	0	0
Shares issued for stock-based compensation awards	46,665	45	(33,959)	80,579	0	0	0	0
Tax benefits related to stock-based compensation awards	7,548	0	7,548	0	0	0	0	0
Repurchases of common stock	(197,044)	0	0	(197,044)	0	0	0	0
Acquisition of noncontrolling interests	5,962	0	0	0	0	0	0	5,962
Balance at Dec. 31, 2011	3,675,260	125,382	1,076,275	(434,959)	2,772,957	158,550	(29,393)	6,448
Consolidated net income (loss)	506,717	0	0	0	506,332	0	0	385
Foreign currency translation adjustments	23,889	0	0	0	0	24,082	0	(193)
Unrealized gain (loss) on investment securities, net	3,679	0	0	0	0	0	3,679	0
Unrealized loss on interest rate swaps designated as cash flow hedges, net	(4,805)	0	0	0	0	0	(4,805)	0
Employee benefit plan items, net	(6,976)	0	0	0	0	0	(6,976)	0
Amortization of stock-based compensation	34,546	0	34,546	0	0	0	0	0
Shares issued for stock-based compensation awards	13,372	42	(29,632)	42,962	0	0	0	0
Tax benefits related to stock-based compensation awards	5,076	0	5,076	0	0	0	0	0
Repurchases of common stock	(260,870)	0	0	(260,870)	0	0	0	0
Purchase of subsidiary shares from noncontrolling interest	(2,526)	0	(26)	0	0	0	0	(2,500)
Balance at Dec. 31, 2012	$ 3,987,362	$ 125,424	$ 1,086,239	$ (652,867)	$ 3,279,289	$ 182,632	$ (37,495)	$ 4,140