Payment Status for the LHFI Portfolio (Parenthetical) (Detail) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans carried at fair value	$ 449,000,000	$ 492,000,000
Nonaccruing 90+ Days Past Due	2,800,000,000	3,300,000,000
Commercial Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans carried at fair value	4,000,000	4,000,000
Commercial Portfolio Segment \| Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans carried at fair value	4,000,000	4,000,000
Residential Mortgage Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans carried at fair value	445,000,000	488,000,000
Residential Mortgage Loans \| Residential Nonguaranteed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans carried at fair value	$ 445,000,000	$ 488,000,000

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents loan receivable as presented on the statement of financial position which may include mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts, or any other loans which are due the Company as of the balance sheet date.

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