Consolidated Statement of Equity (Unaudited) (USD $) Share data in Thousands	Common Stock [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	Total
Balance at January 1, 2013 at Dec. 31, 2012	$ 205,000	$ (26,000)	$ (382,000)	$ 1,896,000	$ 14,735,000
Balance at January 1, 2013 (in Shares) at Dec. 31, 2012	20,469
Issuance of stock options and restricted shares					438,000
Issuance of stock options and restricted shares (in Shares)	25
Exercise of stock options	1,000				95,000
Exercise of stock options (in Shares)	154
Purchase of joint venture affecting non-controlling interest				21,000	21,000
Sale of joint venture affecting non-controlling interest				(123,000)	(120,000)
Other changes to non-controlling interest				130,000	130,000
Purchase of treasury shares		(232,000)			(232,000)
Re-issued treasury shares		6,000
Other comprehensive loss			(505,000)		(505,000)
Net income				550,000	794,000
Balance at September 30, 2013 at Sep. 30, 2013	$ 206,000	$ (252,000)	$ (887,000)	$ 2,474,000	$ 15,356,000
Balance at September 30, 2013 (in Shares) at Sep. 30, 2013	20,648