| A positive XBRL value should normally be entered for this element. A negative XBRL value may need to be entered if this element is used with the members referenced. [Refer: Accumulated depreciation and amortisation [member]; Accumulated depreciation, amortisation and impairment [member]; Accumulated impairment [member]; Aggregate adjustment to carrying amounts reported under previous GAAP [member]; Effect of asset ceiling [member]; Effect of transition to IFRSs [member]; Elimination of intersegment amounts [member]; Financial forecast of cash inflows (outflows) for cash-generating unit, measurement input [member]; Financial forecast of profit (loss) for cash-generating unit, measurement input [member]; Increase (decrease) due to changes in accounting policy [member]; Increase (decrease) due to changes in accounting policy and corrections of prior period errors [member]; Increase (decrease) due to changes in accounting policy required by IFRSs [member]; Increase (decrease) due to corrections of prior period errors [member]; Increase (decrease) due to departure from requirement of IFRS [member]; Increase (decrease) due to voluntary changes in accounting policy [member]; Material reconciling items [member]; Plan assets [member]; Present value of defined benefit obligation [member]; Redesignated amount [member]; Reinsurer's share of amount arising from insurance contracts [member]; Risk diversification effect [member]; Treasury shares [member]] | en | http://www.xbrl.org/2003/role/commentaryGuidance | http://www.xbrl.org/2003/role/link |
| Value at risk | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The measure of a potential loss exposure as a result of future market movements, based on a specified confidence interval and measurement horizon. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
Index