CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated net income	$ 399,876	$ 506,717	$ 599,316
Other comprehensive income:
Foreign currency translation adjustment	65,793	23,889	(49,384)
Unrealized gain (loss) on investment securities, net	1,027	3,679	(11,886)
Unrealized gain (loss) on interest rate swaps designated as cash flow hedges, net	2,075	(4,805)	(1,855)
Employee benefit plan items, net	11,520	(6,976)	(14,482)
Other comprehensive income (loss)	80,415	15,787	(77,607)
Comprehensive income	480,291	522,504	521,709
Less: Comprehensive income attributable to noncontrolling interests	456	192	486
Comprehensive income attributable to shareholders	$ 479,835	$ 522,312	$ 521,223