XML 175 R146.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Suspended Exploratory Well Costs - Amount Capitalized Cost (Details) | 12 Months Ended
--- | ---
Dec. 31, 2016 item
SUSPENDED EXPLORATORY WELL COSTS |
Number of wells, transferred | 1

X
- Definition No definition. + References No definition available. + Details
Name: | su_DisclosureOfSuspendedExploratoryWellCostsAbstract
Namespace Prefix: | su_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of wells, transferred to oil ad gas assets of project received. + References No definition available. + Details
Name: | su_NumberOfWellsTransferredToOilAndGasAssets
Namespace Prefix: | su_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration