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Debt (Maturity Of VIE Notes, By Segment) (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Schedule Of Maturity Variable Interest Entity Notes By Segment [Line Items] |  |  |
Variable interest entity notes, financial instruments carried at fair value | $ 3,700 |  |
Variable Interest Entity [Member] |  |  |
Schedule Of Maturity Variable Interest Entity Notes By Segment [Line Items] |  |  |
2013 | 341 | [1] |
2014 | 430 | [1] |
2015 | 427 | [1] |
2016 | 761 | [1] |
2017 | 465 | [1] |
Thereafter | 4,700 | [1] |
Total | 7,124 | [1] | 8,697
Variable interest entity notes, financial instruments carried at fair value | 3,659 |  | 4,754
Structured Finance And International Insurance [Member] | Variable Interest Entity [Member] |  |  |
Schedule Of Maturity Variable Interest Entity Notes By Segment [Line Items] |  |  |
2013 | 341 |  |
2014 | 280 |  |
2015 | 427 |  |
2016 | 425 |  |
2017 | 465 |  |
Thereafter | 4,551 |  |
Total | 6,489 |  |
Conduits [Member] | Variable Interest Entity [Member] |  |  |
Schedule Of Maturity Variable Interest Entity Notes By Segment [Line Items] |  |  |
2014 | 150 |  |
2016 | 336 |  |
Thereafter | 149 |  |
Total | $ 635 |  |
[1] | Includes $3.7 billion of VIE notes accounted for at fair value as of December 31, 2012.

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