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Composition of Loans to Banking Clients by Loan Segment (Detail) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2012
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Jun. 30, 2012
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Dec. 31, 2010
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|---|---|---|---|---|---|---|---|---|---|---|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||||
| Loans to banking clients | $ 10,159 | [1] | $ 9,866 | [1] | ||||||
| Allowance for loan losses | (57) | (51) | (54) | (53) | (50) | (53) | ||||
| Total loans to banking clients - net | 10,102 | 9,812 | ||||||||
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Residential real estate mortgages
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||||
| Loans to banking clients | 5,982 | 5,596 | ||||||||
| Allowance for loan losses | (35) | (34) | (40) | (38) | (34) | (38) | ||||
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Home equity lines of credit
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||||
| Loans to banking clients | 3,346 | 3,509 | ||||||||
| Allowance for loan losses | (22) | (17) | (14) | (15) | (16) | (15) | ||||
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Personal loans secured by securities
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||||
| Loans to banking clients | 807 | 742 | ||||||||
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Other
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||||||
| Loans to banking clients | $ 24 | $ 19 | ||||||||
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