Goodwill and Other Intangibles (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 201		$ 201		$ 185
Goodwill acquired during period			16
Amortizable intangible assets related to property and casualty insurance acquisitions	55		55		14
Accumulated amortization	86		86		75
Amortization of intangible assets	$ 6	$ 3	$ 14	$ 10