| Component: (Network and Table) | |
|---|---|
| Network | 2417402 - Disclosure - Other Expenses (Other Expenses) (Details) (http://www.metlife.com/role/OtherExpensesOtherExpensesDetails) | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0001099219 (http://www.sec.gov/CIK) | 
| Other Income and Expenses [Abstract] | Period [Axis] | ||
|---|---|---|---|
| 2013-01-01 - 2013-12-31 | 2012-01-01 - 2012-12-31 | 2011-01-01 - 2011-12-31 | |
| Other Income and Expenses [Abstract] | |||
| Compensation | |||
| Pension, postretirement and postemployment benefit costs | |||
| Commissions | |||
| Volume-related costs | |||
| Interest credited to bank deposits | 2,000,000   | 78,000,000   | 95,000,000   | 
| Capitalization of DAC | (4,786,000,000)  | (5,289,000,000)  | (5,558,000,000)  | 
| Amortization of DAC and VOBA | 3,550,000,000   | 4,199,000,000   | 4,898,000,000   | 
| Amortization of negative VOBA | (579,000,000)  | (622,000,000)  | (697,000,000)  | 
| Interest expense on debt and debt issuance costs | 1,282,000,000   | 1,356,000,000   | 1,629,000,000   | 
| Premium taxes, licenses and fees | |||
| Professional services | |||
| Rent and related expenses, net of sublease income | |||
| Other | |||
| Total other expenses | 16,602,000,000   | 17,755,000,000   | 18,537,000,000   |