Income Taxes (Schedule Of Effective Income Tax Rate Reflected In Provision For Income Taxes And U.S. Federal Statutory Rate) (Detail)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Rate Reconciliation [Line Items]
Federal income tax statutory rate	35.00%	35.00%	35.00%
Foreign income tax rate differential	(5.50%)	(5.20%)	(5.70%)
Foreign development tax incentive	(1.60%)	(0.30%)	(0.80%)
Manufacturing benefit	(1.20%)	(1.30%)	(1.40%)
Other	(0.30%)	(1.50%)	(0.70%)
Effective income tax rate	26.40%	26.70%	26.40%