Asset Transfers in Which the Company has Continuing Economic Involvement (Detail) (USD $) In Millions	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Cash flows on interests held	$ 14	$ 15	$ 30	$ 34
Servicing or management fees	3	5	7	9
Residential Mortgage
Cash flows on interests held	13	13	28	28
Servicing or management fees	1	1	2	2
Commercial and Corporate Loans
Cash flows on interests held	1	1	1	2
Servicing or management fees	2	4	5	7
Consumer Loan
Cash flows on interests held		1		3
Collateralized Debt Obligations
Cash flows on interests held			$ 1	$ 1

Cash flows between transferor and transferee in payment of service fees in advance, prior to or in contemplation of a securitization, asset-backed financing arrangement, or similar transfer in which the transferor will have continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets).

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Cash Flows between a transferee and a transferor attributable to servicing fees related to a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets).

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