Investments (Details 44) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2010
Assets:
Mortgage Loans on Real Estate, Commercial and Consumer, Net	$ 57,884	$ 56,915
Trading Securities And Other Trading Assets	15,995	18,268
Cash and Cash Equivalents, at Carrying Value	16,950	10,461	10,001	12,957
Accrued Investment Income Receivable	4,716	4,344
Premiums and Other Receivables, Net	22,939	22,481
Total Assets	6,896	7,273
Liabilities
Other Liabilities	24,007	30,914
Total Liabilities	2,774	3,128
Consolidated Securitization Entities [Member]
Assets:
Mortgage Loans on Real Estate, Commercial and Consumer, Net	2,879	3,138
Trading Securities And Other Trading Assets	53	117
Cash and Cash Equivalents, at Carrying Value	3	21
Accrued Investment Income Receivable	14	16
Premiums and Other Receivables, Net	0	7
Total Assets	2,949	3,299
Liabilities
Long-term Debt	2,733	3,068
Other Liabilities	15	35
Total Liabilities	$ 2,748	$ 3,103