XML 208 R186.htm IDEA: XBRL DOCUMENT v3.21.1

Employee Benefit Plans and Similar Obligations - Summary of Share Based Compensation Plan (Plan 2015-2018 ) (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2018
Plan 2015-18 [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Average life of plan	7 months

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Share Based Benefit Plan Average Life.

+ References

No definition available.

+ Details

Name:	ypf_ShareBasedBenefitPlanAverageLife
Namespace Prefix:	ypf_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=ypf_ShareBasedBenefitPlanTwoThousandAndFifteenToEighteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: