Reinsurance (Earned Life Insurance Premiums On Ceded Business) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Direct earned premiums	$ 4,151	$ 3,755	$ 3,456
Ceded earned premiums	(260)	(242)	(274)
Life Insurance Segment [Member]
Direct earned premiums	248	235	220
Ceded earned premiums	(59)	(57)	(55)
Net earned premiums	$ 189	$ 178	$ 165