Related Party (Reinsurance With Affiliates Pruco Re) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Ceded Rider Fees [Line Items]
Total Fees Ceded to Pruco Reinsurance	$ 67	$ 66	$ 136	$ 132