|
Loans to Banking Clients and Related Allowance for Loan Losses - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Total nonaccrual loans | $ 46 | $ 52 |
| Loans accruing interest contractually 90 days or more past due | 0 | 0 |
| Nonperforming assets, including nonaccrual loans and other real estate owned | $ 50 | $ 56 |
| Minimum fair value percentage of collateral to principal amount of loan | 100.00% | 100.00% |
| X | ||||||||||
|
- Definition
Minimum fair value percentage of collateral to ensure adequate collateralization of the principal amount of personal loans secured by securities. No definition available.
|
| X | ||||||||||
|
- Definition
Total nonperforming assets include nonaccrual loans and other real estate owned No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Recorded investment in financing receivables that are 90 days or more past due and still accruing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|