CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Consolidated net income	$ 506,717	$ 599,316	$ 479,625
Other comprehensive income:
Foreign currency translation adjustments	23,889	(49,384)	(21,110)
Unrealized gain (loss) on investment securities, net	3,679	(11,886)	5,501
Unrealized loss on interest rate swaps designated as cash flow hedges, net	(4,805)	(1,855)	0
Employee benefit plan items, net	(6,976)	(14,482)	2,744
Other comprehensive income (loss)	15,787	(77,607)	(12,865)
Comprehensive income	522,504	521,709	466,760
Less: Comprehensive income (loss) attributable to noncontrolling interests	192	486	(10)
Comprehensive income attributable to shareholders	$ 522,312	$ 521,223	$ 466,770