Investments (Schedule Of Increase (Decrease) In Payables For Collateral On Investments) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Increase (decrease) in payables for collateral on investments
Collateral payable held for derivative investments	$ (1,929)	$ (413)	$ 2,180
Securities pledged under securities lending agreements	(13)	(3)	1
Securities pledged under reverse repurchase agreements	250
Securities pledged for TALF	(1)	(136)	(107)
Securities pledged for FHLBI	750	1,000
Total increase (decrease) in payables for collateral on investments	(943)	448	2,074
Parent Company [Member]
Increase (decrease) in payables for collateral on investments
Total increase (decrease) in payables for collateral on investments	$ 315	$ 73