| **Fair Value (Assets and liabilities measured at fair value on a recurring and nonrecurring basis) (Details) (USD $)In Millions, unless otherwise specified** | Mar. 31, 2014 | Dec. 31, 2013 |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|---------------|
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | $ 41,735      | $ 43,073      |
| Assets, Fair Value Disclosure                                                                                                                                 | 45,221        | 43,073        |
| Liabilities, Fair Value Disclosure, Nonrecurring                                                                                                              | 3,250         |          |
| Corporate and other bonds [Member]                                                                                                                            |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 18,836        | 20,898        |
| States, municipalities and political subdivisions [Member]                                                                                                    |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 11,855        | 11,557        |
| Residential mortgage-backed [Member]                                                                                                                          |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 4,944         | 4,971         |
| Commercial mortgage-backed [Member]                                                                                                                           |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 2,053         | 2,063         |
| Other asset-backed [Member]                                                                                                                                   |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 976           | 955           |
| Total asset-backed [Member]                                                                                                                                   |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 7,973         | 7,989         |
| U.S. Treasury and obligations of government-sponsored enterprises [Member]                                                                                    |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 141           | 144           |
| Foreign Government [Member]                                                                                                                                   |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 576           | 543           |
| Redeemable preferred stock [Member]                                                                                                                           |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 34            | 102           |
| Fixed maturity securities [Member]                                                                                                                            |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 39,415        | 41,233        |
| Equity securities [Member]                                                                                                                                    |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 174           | 185           |
| Other invested assets [Member]                                                                                                                                |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 55            | 54            |
| Short term investments [Member]                                                                                                                               |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 2,004         | 1,332         |
| Life settlement contracts, included in Other assets [Member]                                                                                                  |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 87            | 88            |
| Separate account business [Member]                                                                                                                            |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |          | 181           |
| Assets held for sale-nonrecurring basis [Member]                                                                                                              |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Assets, Fair Value Disclosure, Nonrecurring                                                                                                                   | 3,486         |          |
| Liabilities held for sale-nonrecurring basis [Member]                                                                                                         |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Liabilities, Fair Value Disclosure, Nonrecurring                                                                                                              | 3,250         |          |
| Level 1 [Member]                                                                                                                                              |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 1,728         | 1,179         |
| Assets, Fair Value Disclosure                                                                                                                                 | 1,728         | 1,179         |
| Liabilities, Fair Value Disclosure, Nonrecurring                                                                                                              |     |          |
| Level 1 [Member] | Corporate and other bonds [Member]                                                                                                         |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 24            | 33            |
| Level 1 [Member] | States, municipalities and political subdivisions [Member]                                                                                 |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 1 [Member] | Residential mortgage-backed [Member]                                                                                                       |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 1 [Member] | Commercial mortgage-backed [Member]                                                                                                        |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 1 [Member] | Other asset-backed [Member]                                                                                                                |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 1 [Member] | Total asset-backed [Member]                                                                                                                |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 1 [Member] | U.S. Treasury and obligations of government-sponsored enterprises [Member]                                                                 |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 135           | 116           |
| Level 1 [Member] | Foreign Government [Member]                                                                                                                |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 76            | 81            |
| Level 1 [Member] | Redeemable preferred stock [Member]                                                                                                        |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 23            | 45            |
| Level 1 [Member] | Fixed maturity securities [Member]                                                                                                         |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 258           | 275           |
| Level 1 [Member] | Equity securities [Member]                                                                                                                 |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 117           | 126           |
| Level 1 [Member] | Other invested assets [Member]                                                                                                             |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 1 [Member] | Short term investments [Member]                                                                                                            |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 1,353         | 769           |
| Level 1 [Member] | Life settlement contracts, included in Other assets [Member]                                                                               |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 1 [Member] | Separate account business [Member]                                                                                                         |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |          | 9             |
| Level 1 [Member] | Assets held for sale-nonrecurring basis [Member]                                                                                           |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Assets, Fair Value Disclosure, Nonrecurring                                                                                                                   |     |          |
| Level 1 [Member] | Liabilities held for sale-nonrecurring basis [Member]                                                                                      |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Liabilities, Fair Value Disclosure, Nonrecurring                                                                                                              |     |          |
| Level 2 [Member]                                                                                                                                              |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 38,719        | 40,591        |
| Assets, Fair Value Disclosure                                                                                                                                 | 42,205        | 40,591        |
| Liabilities, Fair Value Disclosure, Nonrecurring                                                                                                              | 3,250         |          |
| Level 2 [Member] | Corporate and other bonds [Member]                                                                                                         |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 18,623        | 20,661        |
| Level 2 [Member] | States, municipalities and political subdivisions [Member]                                                                                 |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 11,769        | 11,486        |
| Level 2 [Member] | Residential mortgage-backed [Member]                                                                                                       |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 4,585         | 4,640         |
| Level 2 [Member] | Commercial mortgage-backed [Member]                                                                                                        |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 1,927         | 1,912         |
| Level 2 [Member] | Other asset-backed [Member]                                                                                                                |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 537           | 509           |
| Level 2 [Member] | Total asset-backed [Member]                                                                                                                |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 7,049         | 7,061         |
| Level 2 [Member] | U.S. Treasury and obligations of government-sponsored enterprises [Member]                                                                 |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 6             | 28            |
| Level 2 [Member] | Foreign Government [Member]                                                                                                                |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 500           | 462           |
| Level 2 [Member] | Redeemable preferred stock [Member]                                                                                                        |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 11            | 57            |
| Level 2 [Member] | Fixed maturity securities [Member]                                                                                                         |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 37,958        | 39,755        |
| Level 2 [Member] | Equity securities [Member]                                                                                                                 |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 55            | 48            |
| Level 2 [Member] | Other invested assets [Member]                                                                                                             |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 55            | 54            |
| Level 2 [Member] | Short term investments [Member]                                                                                                            |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 651           | 563           |
| Level 2 [Member] | Life settlement contracts, included in Other assets [Member]                                                                               |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 2 [Member] | Separate account business [Member]                                                                                                         |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |          | 171           |
| Level 2 [Member] | Assets held for sale-nonrecurring basis [Member]                                                                                           |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Assets, Fair Value Disclosure, Nonrecurring                                                                                                                   | 3,486         |          |
| Level 2 [Member] | Liabilities held for sale-nonrecurring basis [Member]                                                                                      |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Liabilities, Fair Value Disclosure, Nonrecurring                                                                                                              | 3,250         |          |
| Level 3 [Member]                                                                                                                                              |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 1,288         | 1,303         |
| Assets, Fair Value Disclosure                                                                                                                                 | 1,288         | 1,303         |
| Liabilities, Fair Value Disclosure, Nonrecurring                                                                                                              |     |          |
| Level 3 [Member] | Corporate and other bonds [Member]                                                                                                         |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 189           | 204           |
| Level 3 [Member] | States, municipalities and political subdivisions [Member]                                                                                 |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 86            | 71            |
| Level 3 [Member] | Residential mortgage-backed [Member]                                                                                                       |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 359           | 331           |
| Level 3 [Member] | Commercial mortgage-backed [Member]                                                                                                        |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 126           | 151           |
| Level 3 [Member] | Other asset-backed [Member]                                                                                                                |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 439           | 446           |
| Level 3 [Member] | Total asset-backed [Member]                                                                                                                |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 924           | 928           |
| Level 3 [Member] | U.S. Treasury and obligations of government-sponsored enterprises [Member]                                                                 |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 3 [Member] | Foreign Government [Member]                                                                                                                |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 3 [Member] | Redeemable preferred stock [Member]                                                                                                        |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 3 [Member] | Fixed maturity securities [Member]                                                                                                         |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 1,199         | 1,203         |
| Level 3 [Member] | Equity securities [Member]                                                                                                                 |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 2             | 11            |
| Level 3 [Member] | Other invested assets [Member]                                                                                                             |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 3 [Member] | Short term investments [Member]                                                                                                            |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |     |     |
| Level 3 [Member] | Life settlement contracts, included in Other assets [Member]                                                                               |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           | 87            | 88            |
| Level 3 [Member] | Separate account business [Member]                                                                                                         |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Fair value of assets, measured on a recurring basis                                                                                                           |          | 1             |
| Level 3 [Member] | Assets held for sale-nonrecurring basis [Member]                                                                                           |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Assets, Fair Value Disclosure, Nonrecurring                                                                                                                   |     |          |
| Level 3 [Member] | Liabilities held for sale-nonrecurring basis [Member]                                                                                      |          |          |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                              |          |          |
| Liabilities, Fair Value Disclosure, Nonrecurring                                                                                                              |     |          |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258
+ Details**Name:**us-gaap_AssetsFairValueDisclosure**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.
+ References
No definition available.
+ Details**Name:**us-gaap_AssetsFairValueDisclosureNonrecurring**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.
+ References
No definition available.
+ Details**Name:**us-gaap_AssetsFairValueDisclosureRecurring**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Aggregation of the liabilities reported on the balance sheet measured at fair value on a nonrecurring basis by the entity.
+ References
No definition available.
+ Details**Name:**us-gaap_LiabilitiesFairValueDisclosureNonrecurring**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**instant |