Commitments And Contingencies (Schedule Of Activity Related To Asbestos Claims) (Details) - Asbestos Commitments And Contingencies [Member] $ in Millions	12 Months Ended
	Dec. 31, 2015 Claim	Dec. 31, 2014 Claim	Dec. 31, 2013 Claim	Dec. 31, 2010 Claim	Feb. 25, 2013 USD ($)	Dec. 30, 2009 Claim
Activity Related to Asbestos Claims [Roll Forward]
Beginning claims	47,507	51,490	56,442
New claims	2,572	2,743	2,950
Settlements	(954)	(992)	(1,142)
Dismissals	(8,035)	(5,734)	(6,762)
Number Of Activated Maritime Claims	0	0	2
Ending claims	41,090	47,507	51,490
Maritime actions				8
Maritime Claims [Member]
Activity Related to Asbestos Claims [Roll Forward]
Total number of maritime claims						36,448
Thomas Amato [Member]
Loss Contingencies [Line Items]
Jury Verdict | $					$ 2.5