XML 210 R186.htm IDEA: XBRL DOCUMENT
v3.19.1

Supplemental Information on Oil And Gas Producing Activities (Unaudited) - Summary of Changes in the Standardized Measure of Discounted Future Net Cash Flows (Detail) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure Of Future Net Cash Flow [Abstract] |  |  |
Beginning of year | $ 66,433 | $ 106,411 | $ 97,765
Sales and transfers, net of production costs | (62,115) | (53,759) | (52,025)
Net change in sales and transfer prices, net of future production costs | 68,651 | (74,046) | (37,336)
Changes in reserves and production rates (timing) | 111,137 | 15,495 | 4,385
Net changes for extensions, discoveries and improved recovery | 160,784 | 28,489 | 40,565
Net change due to purchases and sales of minerals in place | (730) |  | 3,234
Changes in estimated future development and abandonment costs | (71,368) | (32,052) | (19,356)
Development costs incurred during the year that reduced future development costs | 39,780 | 22,475 | 28,689
Accretion of discount | 11,490 | 9,724 | 10,652
Net change in income taxes | (80,832) | 25,920 | 8,522
Others | 65,003 | 17,776 | 21,316
End of year | $ 308,233 | $ 66,433 | $ 106,411

X
- Definition Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in sales and transfer prices and in production (lifting) costs related to future production. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 + Details
Name: | srt_NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of discounted future accumulated cash inflow relating to proved oil and gas reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 + Details
Name: | srt_StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Accretion of discount1. + References No definition available. + Details
Name: | ypf_AccretionOfDiscount1
Namespace Prefix: | ypf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Development costs incurred during year that reduced future development costs. + References No definition available. + Details
Name: | ypf_DevelopmentCostsIncurredDuringYearThatReducedFutureDevelopmentCosts
Namespace Prefix: | ypf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disclosure of future net cash flow. + References No definition available. + Details
Name: | ypf_DisclosureOfFutureNetCashFlowAbstract
Namespace Prefix: | ypf_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase decrease due to purchases and sales of minerals in place. + References No definition available. + Details
Name: | ypf_IncreaseDecreaseDueToPurchasesAndSalesOfMineralsInPlace
Namespace Prefix: | ypf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase decrease in estimated future development and abandonment costs. + References No definition available. + Details
Name: | ypf_IncreaseDecreaseInEstimatedFutureDevelopmentAndAbandonmentCosts
Namespace Prefix: | ypf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase decrease in extensions discoveries and improved recovery. + References No definition available. + Details
Name: | ypf_IncreaseDecreaseInExtensionsDiscoveriesAndImprovedRecovery
Namespace Prefix: | ypf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase decrease in income tax expense estimates on future cash flow related to proved oil and gas reserves. + References No definition available. + Details
Name: | ypf_IncreaseDecreaseInIncomeTaxExpenseEstimatesOnFutureCashFlowRelatedToProvedOilAndGasReserves
Namespace Prefix: | ypf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase decrease in reserves and production rates. + References No definition available. + Details
Name: | ypf_IncreaseDecreaseInReservesAndProductionRates
Namespace Prefix: | ypf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Sales and transfers net of production costs. + References No definition available. + Details
Name: | ypf_SalesAndTransfersNetOfProductionCosts
Namespace Prefix: | ypf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Standardized measure of discounted future net cash flow of proved oil and gas reserves other adjustments. + References No definition available. + Details
Name: | ypf_StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOtherAdjustments
Namespace Prefix: | ypf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration