Income Taxes (Reconciliation Of Federal Income Tax Rate) (Details)		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Federal income tax rate		35.00%	35.00%	35.00%
Reconciling items:
Non-taxable investment income		(6.80%)	(1.90%)	(1.70%)
Foreign earnings	[1]	(5.20%)	(2.20%)	1.10%
Non deductible health insurer fee		9.10%	3.80%	3.40%
Non deductible health insurer fee		6.90%	1.10%	0.00%
Sale of subsidiary		(8.00%)	0.00%	0.00%
Other		(1.40%)	0.90%	0.30%
Effective income tax rate		29.60%	36.70%	38.10%
Tax benefit related to Latin American reorganization		6.50%
One-time benefit related to conversion of branch operations			2.60%

[1] Results for all years primarily include tax expense (benefit) associated with the earnings of certain non-U.S. subsidiaries that are deemed reinvested indefinitely and realization of foreign tax credits for certain other subsidiaries. In addition, 2015 reflects a 6.5% benefit related to a Latin American reorganization and 2014 reflects a 2.6% benefit related to the conversion of Canadian branch operations of certain U.S. companies to foreign corporate entities.