Related Party (Reinsurance With Affiliates Pruco Re Cont) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Related Party Transactions [Abstract]
Pruco Re Reinsurance Recoverables	$ 1,762		$ 1,762		$ 1,748
Pruco Re Realized Gains Losses	$ 490	$ 70	$ 119	$ 193