Goodwill and Other Intangibles (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 200		$ 200		$ 185
Goodwill acquired during period			15
Amortizable intangible assets related to property and casualty insurance acquisitions	58		58		14
Accumulated amortization	80		80		75
Amortization of intangible assets	$ 5	$ 3	$ 8	$ 7