Consolidated Statements Of Stockholders' Equity (USD $) In Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Non-Controlling Interests [Member]	Comprehensive Income [Member]	Total
Balance, value at Dec. 31, 2008	$ 3,544	$ 1,812,963	$ 8,095,155	$ (103,100)
Balance, shares at Dec. 31, 2008	354,487
Net earnings for the year			1,151,704			1,151,704	1,151,704
Dividends declared			(41,717)
Common stock based award activity, value	45	261,538
Common stock based award activity, shares	4,435
Unrealized gain on available-for-sale securities (net of tax)				54,342		54,342
Unrecognized pension and postretirement plan benefits (costs) (net of tax)				22,469		22,469
Increase (Decrease) from translation of foreign financial statements				373,233		373,233
Balance, value at Dec. 31, 2009	3,589	2,074,501	9,205,142	346,944		1,601,748
Balance, shares at Dec. 31, 2009	358,922
Net earnings for the year			1,793,000			1,793,000	1,793,000
Dividends declared			(52,214)
Common stock based award activity, value	60	266,444
Common stock based award activity, shares	6,023
Stock dividend, value	3,622	(3,622)
Stock dividend, shares	362,196
Common stock issued in connection with LYONs' conversions, value	24	75,078
Common stock issued in connection with LYONs' conversions, shares	2,375
Unrealized gain on available-for-sale securities (net of tax)				24,632		24,632
Unrecognized pension and postretirement plan benefits (costs) (net of tax)				(26,797)		(26,797)
Increase (Decrease) from translation of foreign financial statements				607		607
Non-controlling interest acquired					61,756
Balance, value at Dec. 31, 2010	7,295	2,412,401	10,945,928	345,386	61,756	1,791,442	13,772,766
Balance, shares at Dec. 31, 2010	729,516
Net earnings for the year			2,172,264			2,172,264	2,172,264
Dividends declared			(61,323)
Common stock issuance, value	193	966,302
Common stock issuance, shares	19,250
Common stock based award activity, value	48	241,532
Common stock based award activity, shares	4,827
Common stock issued in connection with LYONs' conversions, value	75	257,005
Common stock issued in connection with LYONs' conversions, shares	7,474
Unrealized gain on available-for-sale securities (net of tax)				15,707		15,707
Unrecognized pension and postretirement plan benefits (costs) (net of tax)				(171,217)		(171,217)
Increase (Decrease) from translation of foreign financial statements				(226,813)		(226,813)
Non-controlling interest acquired					5,229
Balance, value at Dec. 31, 2011	$ 7,611	$ 3,877,240	$ 13,056,869	$ (36,937)	$ 66,985	$ 1,789,941	$ 16,971,768
Balance, shares at Dec. 31, 2011	761,067