| Closed Block Assets and Liabilities, Maximum Future Earnings to be Recognized | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Closed Block Assets and Liabilities, Maximum Future Earnings to be Recognized, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Closed Block Assets and Liabilities, Maximum Future Earnings to be Recognized, Beginning Balance | en-US | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Closed Block Assets and Liabilities, Maximum Future Earnings to be Recognized, Ending Balance | en-US | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |