Other Expenses (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Restructuring Charges
Balance, beginning of period	$ 27		$ 0
Restructuring charges	20		47
Cash payments	(26)		(26)
Balance, end of period	21		21
Restructuring charges incurred in current period	20		47
Total restructuring charges incurred since inception of restructuring plans	47		47
American Life Insurance Company ("American Life") and Delaware American Life Insurance ("DelAm") [Member]
Restructuring Charges
Balance, beginning of period	11	13	13	10
Restructuring charges	6	7	9	24
Cash payments	(9)	(11)	(14)	(25)
Balance, end of period	8	9	8	9
Restructuring charges incurred in current period	6	7	9	24
Total restructuring charges incurred since inception of restructuring plans	$ 65	$ 34	$ 65	$ 34