XML 39 R87.htm IDEA: XBRL DOCUMENT

Reinsurance (Components of Earned Premiums) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Direct premiums earned	$ 9,960us-gaap_DirectPremiumsEarned	$ 9,574us-gaap_DirectPremiumsEarned	$ 8,866us-gaap_DirectPremiumsEarned
Assumed premiums earned	325us-gaap_AssumedPremiumsEarned	306us-gaap_AssumedPremiumsEarned	244us-gaap_AssumedPremiumsEarned
Ceded premiums earned	3,073us-gaap_CededPremiumsEarned	2,609us-gaap_CededPremiumsEarned	2,229us-gaap_CededPremiumsEarned
Net earned premiums	7,212us-gaap_PremiumsEarnedNet	7,271us-gaap_PremiumsEarnedNet	6,881us-gaap_PremiumsEarnedNet
Property and Casualty Insurance [Member]
Direct premiums earned	9,452	9,063	8,354
Assumed premiums earned	277	258	197
Ceded premiums earned	3,073	2,609	2,229
Net earned premiums	6,656	6,712	6,322
Accident and Health Insurance [Member]
Direct premiums earned	508	511	512
Assumed premiums earned	48	48	47
Ceded premiums earned	0	0	0
Net earned premiums	$ 556	$ 559	$ 559
Percentage of assumed premiums earned to net premiums earned [Member]
Percentage of assumed premium earned to premium earned net	4.50%	4.20%	3.50%
Percentage of assumed premiums earned to net premiums earned [Member] \| Property and Casualty Insurance [Member]
Percentage of assumed premium earned to premium earned net	4.20%	3.80%	3.10%
Percentage of assumed premiums earned to net premiums earned [Member] \| Accident and Health Insurance [Member]
Percentage of assumed premium earned to premium earned net	8.60%	8.60%	8.40%

Amount of earned premiums ceded to other entities.

Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.