| Preferred shares. Nonparticipating preferred shares | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Preferred shares. Nonparticipating preferred shares | en | http://www.xbrl.org/2003/role/label | http://www.bankofengland.co.uk/data/xbrl/role/dict/dom/eba_MC/MC999W |
| Preferred shares. Nonparticipating preferred shares | en | http://www.xbrl.org/2003/role/label | http://www.bankofengland.co.uk/data/xbrl/role/dict/dom/eba_MC/MC941 |
| Preferred shares. Nonparticipating preferred shares | en | http://www.xbrl.org/2003/role/label | http://www.bankofengland.co.uk/data/xbrl/role/dict/dom/eba_MC/MC913 |
| Preferred shares. Nonparticipating preferred shares | en | http://www.xbrl.org/2003/role/label | http://www.bankofengland.co.uk/data/xbrl/role/dict/dom/eba_MC/MC902 |