Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net Income	$ 776,464	$ 768,508	$ 684,863
Other Comprehensive (Loss) Income, Net of Tax:
Currency translation adjustments	27,616	(77,105)	883
Defined benefit pension plans net prior service cost and net actuarial (loss) gain	(18,258)	(38,084)	7,703
Net unrealized (losses) gains on derivative instruments:
Unrealized holding gains	2,734	17,900	8,725
Reclassification adjustment for realized (gains) losses included in net income	(29,933)	9,843	3,024
Net unrealized (losses) gains on derivative instruments	(27,199)	27,743	11,749
Other Comprehensive (Loss) Income, Net of Tax	(17,841)	(87,446)	20,335
Comprehensive Income	$ 758,623	$ 681,062	$ 705,198