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Supplemental Information on Oil And Gas Producing Activities (Unaudited) - Summary of Changes in YPF's Net Proved Reserves (Detail)
 12 Months Ended
Dec. 31, 2020
MMBbls
Dec. 31, 2020
Bcf
Dec. 31, 2019
MMBbls
Dec. 31, 2019
bbl
Dec. 31, 2019
Bcf
Dec. 31, 2019
MMBoe
Dec. 31, 2018
MMBbls
Dec. 31, 2018
Bcf
Dec. 31, 2018
MMBoe
Disclosure of information about consolidated structured entities [Line Items]                  
Improved recovery | MMBoe           8     15
Worldwide [member] | Consolidated entities [Member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 613   582       422    
Revisions of previous estimates (92)   21       126    
Extensions and discoveries 47   86       103    
Improved recovery     8       15    
Sale of minerals in place (9)   (1)       (1)    
Production for the year (76)   (83)       (83)    
Ending balance 483   613       582    
Beginning balance 60   56       58    
Revisions of previous estimates 8   4       (1)    
Extensions and discoveries 9   14       13    
Sale of minerals in place (1)                
Production for the year (13)   (14)       (14)    
Ending balance 63   60       56    
Beginning balance | Bcf   2,241     2,481     2,520  
Revisions of previous estimates | Bcf   136     (104)     178  
Extensions and discoveries | Bcf   199     384     329  
Sale of minerals in place | Bcf   (6)     (8)     (4)  
Production for the year | Bcf   (460)     (512)     (542)  
Ending balance | Bcf   2,110     2,241     2,481  
Beginning balance 1,073   1,080       929    
Revisions of previous estimates (61)   7       157    
Extensions and discoveries 92   169       174    
Improved recovery     8       15    
Sale of minerals in place (11)   (3)       (2)    
Production for the year (171)   (188)       (193)    
Ending balance 922   1,073       1,080    
Worldwide [member] | Consolidated entities [Member] | Proved reserves, developed [member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 301   339       286    
Ending balance 229   301       339    
Beginning balance 38   41       47    
Ending balance 32   38       41    
Beginning balance | Bcf   1,743     1,915     1,850  
Ending balance | Bcf   1,486     1,743     1,915  
Beginning balance 650   722       663    
Ending balance 526   650       722    
Worldwide [member] | Consolidated entities [Member] | Proved reserves, undeveloped [member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 312   243       136    
Ending balance 254   312       243    
Beginning balance 22   15       11    
Ending balance 31   22       15    
Beginning balance | Bcf   498     566     670  
Ending balance | Bcf   624     498     566  
Beginning balance 423   358       266    
Ending balance 396   423       358    
Worldwide [member] | Consolidated and equity-accounted entities [Member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 613   582 582     422    
Ending balance 483   613 613     582    
Beginning balance 60   56       58    
Ending balance 63   60       56    
Beginning balance | Bcf   2,241     2,481     2,520  
Ending balance | Bcf   2,110     2,241     2,481  
Beginning balance 1,073   1,080       929    
Ending balance 922   1,073       1,080    
Worldwide [member] | Consolidated and equity-accounted entities [Member] | Proved reserves, developed [member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 301   339 339     286    
Ending balance 229   301 301     339    
Beginning balance 38   41       47    
Ending balance 32   38       41    
Beginning balance | Bcf   1,743     1,915     1,850  
Ending balance | Bcf   1,486     1,743     1,915  
Beginning balance 650   722       663    
Ending balance 526   650       722    
Worldwide [member] | Consolidated and equity-accounted entities [Member] | Proved reserves, undeveloped [member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 312   243 243     136    
Ending balance 254   312 312     243    
Beginning balance 22   15       11    
Ending balance 31   22       15    
Beginning balance | Bcf   498     566     670  
Ending balance | Bcf   624     498     566  
Beginning balance 423   358       266    
Ending balance 396   423       358    
Argentina [member] | Consolidated entities [Member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 613   582       422    
Revisions of previous estimates (92)   21       126    
Extensions and discoveries 47   86       103    
Improved recovery     8       15    
Sale of minerals in place (9)   (1)       (1)    
Production for the year (76)   (83)       (83)    
Ending balance 483   613       582    
Beginning balance 60   56       58    
Revisions of previous estimates 8   4       (1)    
Extensions and discoveries 9   14       13    
Sale of minerals in place (1)                
Production for the year (13)   (14)       (14)    
Ending balance 63   60       56    
Beginning balance | Bcf   2,241     2,481     2,520  
Revisions of previous estimates | Bcf   136     (104)     178  
Extensions and discoveries | Bcf   199     384     329  
Sale of minerals in place | Bcf   (6)     (8)     (4)  
Production for the year | Bcf   (460)     (512)     (542)  
Ending balance | Bcf   2,110     2,241     2,481  
Beginning balance 1,073   1,080       929    
Revisions of previous estimates (61)   7       157    
Extensions and discoveries 92   169       174    
Improved recovery     8       15    
Sale of minerals in place (11)   (3)       (2)    
Production for the year (171)   (188)       (193)    
Ending balance 922   1,073       1,080    
Argentina [member] | Consolidated entities [Member] | Proved reserves, developed [member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 301   339       286    
Ending balance 229   301       339    
Beginning balance 38   41       47    
Ending balance 32   38       41    
Beginning balance | Bcf   1,743     1,915     1,850  
Ending balance | Bcf   1,486     1,743     1,915  
Beginning balance 650   722       663    
Ending balance 526   650       722    
Argentina [member] | Consolidated entities [Member] | Proved reserves, undeveloped [member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 312   243       136    
Ending balance 254   312       243    
Beginning balance 22   15       11    
Ending balance 31   22       15    
Beginning balance | Bcf   498     566     670  
Ending balance | Bcf   624     498     566  
Beginning balance 423   358       266    
Ending balance 396   423       358    
Argentina [member] | Consolidated and equity-accounted entities [Member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 613   582       422    
Ending balance 483   613       582    
Beginning balance 60   56       58    
Ending balance 63   60       56    
Beginning balance | Bcf   2,241     2,481     2,520  
Ending balance | Bcf   2,110     2,241     2,481  
Beginning balance 1,073   1,080       929    
Ending balance 922   1,073       1,080    
Argentina [member] | Consolidated and equity-accounted entities [Member] | Proved reserves, developed [member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 301   339       286    
Ending balance 229   301       339    
Beginning balance 38   41       47    
Ending balance 32   38       41    
Beginning balance | Bcf   1,743     1,915     1,850  
Ending balance | Bcf   1,486     1,743     1,915  
Beginning balance 650   722       663    
Ending balance 526   650       722    
Argentina [member] | Consolidated and equity-accounted entities [Member] | Proved reserves, undeveloped [member]                  
Disclosure of information about consolidated structured entities [Line Items]                  
Beginning balance 312   243       136    
Ending balance 254   312       243    
Beginning balance 22   15       11    
Ending balance 31   22       15    
Beginning balance | Bcf   498     566     670  
Ending balance | Bcf   624     498     566  
Beginning balance 423   358       266    
Ending balance 396   423       358