Investments (Details 44) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2010
Assets:
Mortgage Loans on Real Estate, Commercial and Consumer, Net	$ 57,201	$ 56,915
Trading Securities And Other Trading Assets	18,328	18,268
Cash and Cash Equivalents, at Carrying Value	16,035	10,461	9,628	12,957
Accrued Investment Income Receivable	4,404	4,344
Premiums and Other Receivables, Net	23,974	22,481
Total Assets	6,932	7,273
Liabilities
Long-term Debt	18,879	23,692
Other Liabilities	25,395	30,914
Total Liabilities	2,875	3,128
Consolidated Securitization Entities [Member]
Assets:
Mortgage Loans on Real Estate, Commercial and Consumer, Net	2,932	3,138
Trading Securities And Other Trading Assets	70	117
Cash and Cash Equivalents, at Carrying Value	21	21
Accrued Investment Income Receivable	14	16
Premiums and Other Receivables, Net	0	7
Total Assets	3,037	3,299
Liabilities
Long-term Debt	2,821	3,068
Other Liabilities	25	35
Total Liabilities	$ 2,846	$ 3,103