|
Derivatives, Sold and Purchased Credit Derivatives (Details) (USD $)
In Millions, unless otherwise specified
|
3 Months Ended |
12 Months Ended |
|
Mar. 31, 2013
|
Dec. 31, 2012
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Fair value liability |
2,307 |
2,623 |
| Notional amount Protection sold |
24,351 |
26,455 |
| Notional amount Protection purchased with identical underlyings |
11,900 |
14,930 |
| Notional Net protection sold |
12,451 |
11,525 |
| Notional Other protection purchased |
14,751 |
13,981 |
|
Non-investment Grade [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Notional amount Protection sold |
13,438 |
15,104 |
|
Structured products [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Fair value liability |
1,596 |
1,787 |
| Notional amount Protection sold |
2,720 |
2,433 |
| Notional amount Protection purchased with identical underlyings |
954 |
948 |
| Notional Net protection sold |
1,766 |
1,485 |
| Notional Other protection purchased |
837 |
393 |
|
Structured products [Member] | Minimum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Jan.
01,
2016 |
Jan.
01,
2016 |
|
Structured products [Member] | Maximum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Dec. 31,
2056 |
Dec. 31,
2056 |
|
Structured products [Member] | Non-investment Grade [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Notional amount Protection sold |
2,342 |
2,039 |
|
Credit Default Swap [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Fair value liability |
11 |
4 |
| Notional amount Protection sold |
2,737 |
3,520 |
| Notional amount Protection purchased with identical underlyings |
2,374 |
3,444 |
| Notional Net protection sold |
363 |
76 |
| Notional Other protection purchased |
525 |
616 |
|
Credit Default Swap [Member] | Minimum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Jan.
01,
2013 |
Jan.
01,
2013 |
|
Credit Default Swap [Member] | Maximum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Dec. 31,
2018 |
Dec. 31,
2017 |
|
Credit Default Swap [Member] | Non-investment Grade [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Notional amount Protection sold |
267 |
348 |
|
Corporate Bond Securities [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Fair value liability |
133 |
240 |
| Notional amount Protection sold |
14,301 |
15,845 |
| Notional amount Protection purchased with identical underlyings |
7,872 |
9,636 |
| Notional Net protection sold |
6,429 |
6,209 |
| Notional Other protection purchased |
7,725 |
7,701 |
|
Corporate Bond Securities [Member] | Minimum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Jan.
01,
2013 |
Jan.
01,
2013 |
|
Corporate Bond Securities [Member] | Maximum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Dec. 31,
2021 |
Dec. 31,
2021 |
|
Corporate Bond Securities [Member] | Non-investment Grade [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Notional amount Protection sold |
7,252 |
8,448 |
|
Total asset-backed securities [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Fair value liability |
56 |
57 |
| Notional amount Protection sold |
63 |
64 |
| Notional amount Protection purchased with identical underlyings |
4 |
6 |
| Notional Net protection sold |
59 |
58 |
| Notional Other protection purchased |
92 |
92 |
|
Total asset-backed securities [Member] | Minimum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Jan.
01,
2037 |
Jan.
01,
2037 |
|
Total asset-backed securities [Member] | Maximum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Dec. 31,
2046 |
Dec. 31,
2046 |
|
Total asset-backed securities [Member] | Non-investment Grade [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Notional amount Protection sold |
63 |
64 |
|
Commercial [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Fair value liability |
510 |
531 |
| Notional amount Protection sold |
1,334 |
1,249 |
| Notional amount Protection purchased with identical underlyings |
667 |
790 |
| Notional Net protection sold |
667 |
459 |
| Notional Other protection purchased |
626 |
524 |
|
Commercial [Member] | Minimum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Jan.
01,
2049 |
Jan.
01,
2049 |
|
Commercial [Member] | Maximum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Dec. 31,
2063 |
Dec. 31,
2052 |
|
Commercial [Member] | Non-investment Grade [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Notional amount Protection sold |
318 |
861 |
|
Other Credit Derivatives [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Fair value liability |
1 |
4 |
| Notional amount Protection sold |
3,196 |
3,344 |
| Notional amount Protection purchased with identical underlyings |
29 |
106 |
| Notional Net protection sold |
3,167 |
3,238 |
| Notional Other protection purchased |
4,946 |
4,655 |
|
Other Credit Derivatives [Member] | Minimum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Jan.
01,
2013 |
Jan.
01,
2013 |
|
Other Credit Derivatives [Member] | Maximum [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Derivative range of maturity dates |
Dec. 31,
2056 |
Dec. 31,
2056 |
|
Other Credit Derivatives [Member] | Non-investment Grade [Member]
|
|
|
| Details of Sold and Purchased Credit Derivatives [Abstract] |
|
|
| Notional amount Protection sold |
3,196 |
3,344 |