Premiums Receivable and Other Insurance Assets (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Premiums Receivable and Other Insurance Assets [Abstract]
Prepaid Reinsurance Premiums	$ 326	$ 288
Reinsurance Receivables, Incurred but Not Reported Claims	143	182
Reinsurance Recoverables	12	13
Premiums Receivable, at Carrying Value	90	85
Deferred Policy Acquisition Costs	1,124	1,045
Premiums receivable and other insurance assets	$ 1,695	$ 1,613