| The increase (decrease) in exposure to credit risk on loan commitments and financial guarantee contracts resulting from foreign exchange and other movements. [Refer: Exposure to credit risk on loan commitments and financial guarantee contracts] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Total increase (decrease) through foreign exchange and other movements, exposure to credit risk on loan commitments and financial guarantee contracts | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Increase (decrease) through foreign exchange and other movements, exposure to credit risk on loan commitments and financial guarantee contracts | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |