Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Per Share data	Total	Common Stock Held in Treasury [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Additional Paid-in Capital [Member]	Common Stock [Member]
Balance at Dec. 31, 2011	$ 12,640,904	$ (24,932)	$ 9,789,345	$ 401,746	$ 2,272,052	$ 202,693
Common Stock Dividends Declared (in dollars per share)	$ 0.340
Net Income	570,279	0	570,279	0	0	0
Common Stock Issued Under Stock Plans	83,218	0	0	0	83,197	21
Dividends, Common Stock	(183,993)	0	(183,993)	0	0	0
Other Comprehensive Income (Loss)	38,149	0	0	38,149	0	0
Change in Treasury Stock - Stock Compensation Plans, Net	(58,588)	(11,465)	0	0	(47,123)	0
Excess Tax Benefit from Stock-Based Compensation	67,035	0	0	0	67,035	0
Restricted Stock and Restricted Stock Units, Net	0	2,358	0	0	(2,364)	6
Stock-Based Compensation Expenses	127,504	0	0	0	127,504	0
Treasury Stock Issued as Compensation	256	217	0	0	39	0
Balance at Dec. 31, 2012	13,284,764	(33,822)	10,175,631	439,895	2,500,340	202,720
Common Stock Dividends Declared (in dollars per share)	$ 0.375
Net Income	2,197,109	0	2,197,109	0	0	0
Common Stock Issued Under Stock Plans	38,729	0	0	0	38,723	6
Dividends, Common Stock	(204,463)		(204,463)
Other Comprehensive Income (Loss)	(24,061)	0	0	(24,061)	0	0
Change in Treasury Stock - Stock Compensation Plans, Net	(32,214)	47,427	0	0	(79,641)	0
Excess Tax Benefit from Stock-Based Compensation	55,831	0	0	0	55,831	0
Restricted Stock and Restricted Stock Units, Net	(31,422)	(28,454)			(2,974)	6
Stock-Based Compensation Expenses	134,467	0	0	0	134,467	0
Treasury Stock Issued as Compensation	(281)	(414)	0	0	133	0
Balance at Dec. 31, 2013	15,418,459	(15,263)	12,168,277	415,834	2,646,879	202,732
Common Stock Dividends Declared (in dollars per share)	$ 0.585
Net Income	2,915,487	0	2,915,487	0	0	0
Common Stock Issued Under Stock Plans	22,260	0	0	0	22,252	8
Dividends, Common Stock	(320,666)	0	(320,666)	0	0	0
Other Comprehensive Income (Loss)	(438,890)	0	0	(438,890)	0	0
Change in Treasury Stock - Stock Compensation Plans, Net	(127,432)	(96,962)	0	0	(30,470)	0
Excess Tax Benefit from Stock-Based Compensation	99,459	0	0	0	99,459	0
Restricted Stock and Restricted Stock Units, Net	0	43,091	0	0	(43,109)	18
Stock-Based Compensation Expenses	144,842	0	0	0	144,842	0
Common Stock Issued - Stock Split	0	0	0	0	(2,734)	2,734
Treasury Stock Issued as Compensation	(937)	(968)	0	0	31	0
Balance at Dec. 31, 2014	$ 17,712,582	$ (70,102)	$ 14,763,098	$ (23,056)	$ 2,837,150	$ 205,492