Acquisitions and Dispositions - Summary of Table Resumes Consideration and Fair Value of the Acquired Assets and the Liabilities Assumed on the Acquisiton (Detail) - CTEB [member] $ in Millions	Dec. 31, 2019 ARS ($)
Disclosure of business acquisitions by acquisition assets acquired and liabilities assumed [line items]
Property, plant and equipment	$ 20,330
Inventories	341
Financial assets at fair value	682
VRD	(9,760)
Total net identifiable assets / consideration	$ 11,593

The amount recognised as of the acquisition date for financial assets acquired in a business combination. [Refer: Financial assets; Business combinations [member]]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 3
-IssueDate 2021-01-01
-Paragraph B64
-Subparagraph i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_i&doctype=Appendix&subtype=B
-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 3
-IssueDate 2021-01-01
-Paragraph IE72
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_IE72&doctype=Illustrative%20Examples
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount recognised as of the acquisition date for financial liabilities assumed in a business combination. [Refer: Financial liabilities; Business combinations [member]]

+ References

+ Details

Name:	ifrs-full_FinancialLiabilitiesRecognisedAsOfAcquisitionDate
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount recognised as of the acquisition date for net identifiable assets acquired or liabilities assumed in a business combination. [Refer: Business combinations [member]]

+ References

+ Details

Name:	ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount recognised as of the acquisition date for inventory acquired in a business combination. [Refer: Inventories; Business combinations [member]]

+ References

+ Details

Name:	ifrs-full_InventoryRecognisedAsOfAcquisitionDate
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount recognised as of the acquisition date for plant, property and equipment acquired in a business combination. [Refer: Property, plant and equipment; Business combinations [member]]

+ References

+ Details

Name:	ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Disclosure of business acquisitions by acquisition assets acquired and liabilities assumed [line items]

+ References

No definition available.

+ Details

Name:	ypf_DisclosureOfBusinessAcquisitionsByAcquisitionAssetsAcquiredAndLiabilitiesAssumedLineItems
Namespace Prefix:	ypf_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_BusinessCombinationsAxis=ypf_CtebMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: