|
Guarantees, Pledged Assets and Collateral (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Guarantees [Abstract] | ||
| Carrying value | $ 1,606 | $ 1,701 |
| Maximum exposure to loss | 61,600 | 56,697 |
| Pledged Assets and Collateral | ||
| Pledged assets without the right to sell or repledge | 456,189 | 398,282 |
|
Available for sale Securities [Member]
|
||
| Pledged Assets and Collateral | ||
| Pledged assets without the right to sell or repledge | 96,018 | 80,540 |
|
Loans and Finance Receivables [Member]
|
||
| Pledged Assets and Collateral | ||
| Pledged assets without the right to sell or repledge | 360,171 | 317,742 |
|
Non-investment grade [Member]
|
||
| Guarantees [Abstract] | ||
| Maximum exposure to loss | 19,443 | 19,731 |
|
Standby Letters of Credit [Member]
|
||
| Guarantees [Abstract] | ||
| Carrying value | 42 | 85 |
| Maximum exposure to loss | 39,759 | 41,171 |
|
Standby Letters of Credit [Member] | Non-investment grade [Member]
|
||
| Guarantees [Abstract] | ||
| Maximum exposure to loss | 11,331 | 13,250 |
|
Securities lending and other indemnifications [Member]
|
||
| Guarantees [Abstract] | ||
| Carrying value | 0 | 0 |
| Maximum exposure to loss | 2,541 | 669 |
|
Securities lending and other indemnifications [Member] | Non-investment grade [Member]
|
||
| Guarantees [Abstract] | ||
| Maximum exposure to loss | 118 | 62 |
|
Liquidity agreements [Member]
|
||
| Guarantees [Abstract] | ||
| Carrying value | 0 | 0 |
| Maximum exposure to loss | 3 | 2 |
|
Liquidity agreements [Member] | Non-investment grade [Member]
|
||
| Guarantees [Abstract] | ||
| Maximum exposure to loss | 3 | 2 |
|
Written put options [Member]
|
||
| Guarantees [Abstract] | ||
| Carrying value | 1,427 | 1,469 |
| Maximum exposure to loss | 11,874 | 8,224 |
|
Written put options [Member] | Non-investment grade [Member]
|
||
| Guarantees [Abstract] | ||
| Maximum exposure to loss | 3,953 | 2,466 |
|
Loans and MHFS sold with recourse [Member]
|
||
| Guarantees [Abstract] | ||
| Carrying value | 99 | 102 |
| Maximum exposure to loss | 5,873 | 5,784 |
|
Loans and MHFS sold with recourse [Member] | Non-investment grade [Member]
|
||
| Guarantees [Abstract] | ||
| Maximum exposure to loss | 3,905 | 3,850 |
|
Residual value guarantees [Member]
|
||
| Guarantees [Abstract] | ||
| Carrying value | 0 | 8 |
| Maximum exposure to loss | 0 | 197 |
|
Residual value guarantees [Member] | Non-investment grade [Member]
|
||
| Guarantees [Abstract] | ||
| Maximum exposure to loss | 0 | 0 |
|
Contingent consideration [Member]
|
||
| Guarantees [Abstract] | ||
| Carrying value | 35 | 31 |
| Maximum exposure to loss | 129 | 98 |
|
Contingent consideration [Member] | Non-investment grade [Member]
|
||
| Guarantees [Abstract] | ||
| Maximum exposure to loss | 129 | 97 |
|
Other guarantees [Member]
|
||
| Guarantees [Abstract] | ||
| Carrying value | 3 | 6 |
| Maximum exposure to loss | 1,421 | 552 |
|
Other guarantees [Member] | Non-investment grade [Member]
|
||
| Guarantees [Abstract] | ||
| Maximum exposure to loss | $ 4 | $ 4 |