| Increases in the present value of defined benefit obligation or net defined benefit liability resulting from changes in foreign exchange rates should be tagged with a positive value; decreases should be tagged with a negative value. Increases in the fair value of plan assets resulting from changes in foreign exchange rates represent a decrease in the net defined benefit liability (equivalent to an increase in a net defined benefit asset) and should be tagged with a negative value; decreases in the fair value of plan assets represent an increase in the net defined benefit liability and should be tagged with a positive value. | en | http://www.xbrl.org/2003/role/commentaryGuidance | http://www.xbrl.org/2003/role/link |
| Increase (decrease) in net defined benefit liability (asset) resulting from changes in foreign exchange rates, net defined benefit liability (asset) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The increase (decrease) in the net defined benefit liability (asset) resulting from changes in foreign exchange rates. [Refer: Net defined benefit liability (asset)] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |