CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (unaudited) (USD $) In Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Earnings (Loss) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2014	$ 3,700,725	$ 255,893	$ 900,833	$ 7,074,782	$ (158,931)	$ (4,371,852)
Net earnings	209,510	0	0	209,510	0	0
Dividends paid	(64,442)	0	0	(64,442)	0	0
Common stock issued for the exercise of stock options and SARs	(903)	116	(1,019)	0	0	0
Tax benefit from the exercise of stock options	(102)	0	(102)	0	0	0
Stock-based compensation expense	13,387	0	13,387	0	0	0
Common stock acquired	(200,055)	0	0	0	0	(200,055)
Other comprehensive earnings (loss), net of tax	(79,010)	0	0	0	(79,010)	0
Balance at Mar. 31, 2015	$ 3,579,110	$ 256,009	$ 913,099	$ 7,219,850	$ (237,941)	$ (4,571,907)