Deferred Policy Acquisition Costs (Deferred Policy Acquisition Costs And Asset Reconciliation Including The Amortized Deferred Policy Acquisition Costs) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred Costs [Abstract]
Deferred policy acquisition costs asset at January 1	$ 470	$ 477	$ 458
Capitalized deferred policy acquisition costs	802	734	661
Amortized deferred policy acquisition costs	(758)	(706)	(631)
Amortized shadow deferred policy acquisition costs	51	(35)	(11)
Deferred policy acquisition costs asset at December 31	$ 565	$ 470	$ 477