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Fair Value Of Financial Instruments (Gains And Losses On Fair Value Option Included In The Company's Consolidated Statements Of Operations) (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Accounts Notes And Loans Receivable [Line Items] |  |  |
Net gains (losses) on financial instruments at fair value and foreign exchange | $ 69 | $ 55 | $ (99)
Loan Repurchase Commitments [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Net gains (losses) on financial instruments at fair value and foreign exchange | 172 | 9 | 242
Fixed Maturity Securities Held At Fair Value [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Net gains (losses) on financial instruments at fair value and foreign exchange | (74) | (55) | (484)
Residential Mortgage Loans [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Net gains (losses) on financial instruments at fair value and foreign exchange | (107) | (107) | (143)
Other Loans [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Net gains (losses) on financial instruments at fair value and foreign exchange | 13 | (56) | (19)
Variable Interest Entity Notes [Member] |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Net gains (losses) on financial instruments at fair value and foreign exchange | $ 155 | $ 107 | $ 594

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- Definition Change in the fair value of and realized gains and losses on sale of financial instruments and foreign exchange included in earnings. + References No definition available. + Details
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- Details
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