|
Legal Actions (Details) (USD $)
|
3 Months Ended |
|---|---|
|
Mar. 31, 2013
|
|
|
Medical Capital Corporation Litigation [Member]
|
|
| Legal Actions (Textual) [Abstract] | |
| Amounts to be paid in connection with legal or regulatory matters | $ 105,000,000 |
|
In re Wells Fargo Mortgage-Backed Certificates Litigation [Member]
|
|
| Legal Actions (Textual) [Abstract] | |
| Amounts to be paid in connection with legal or regulatory matters | 125,000,000 |
|
Liability for Contingent Litigation Losses [Member]
|
|
| Legal Actions (Textual) [Abstract] | |
| Loss Contingency, Range of Possible Loss, Portion Not Accrued | $ 1,100,000,000 |