Income Taxes (Reconciliation Of The Statutory U.S. Federal Rate To The Effective Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Statutory U.S. federal tax rate	35.00%	35.00%	35.00%
Non-U.S. taxes	(7.40%)	(2.00%)	(4.00%)
Repatriation of non-U.S. earnings, net of credits	(1.00%)	(0.00%)	(0.10%)
State and local taxes, net of federal benefit	3.10%	1.30%	1.30%
U.S. research and development tax credit	(3.20%)	(0.90%)	(1.00%)
U.S. domestic manufacturing deduction	(3.20%)	(1.30%)	(0.70%)
Other	1.30%	(0.40%)	0.50%
Effective tax rate	24.60%	31.70%	31.20%