v3.26.1
Oxy Stock Fund - Fair Value Measurement (Details) - EBP 001 - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
EBP, Master Trust [Line Items]    
Plan interest in master trust accounts, at fair value $ 3,656,429 $ 3,244,537
Oxy Stock Fund    
EBP, Master Trust [Line Items]    
Plan interest in master trust accounts, at fair value 519,195 595,401
Total | Oxy Stock Fund    
EBP, Master Trust [Line Items]    
Plan interest in master trust accounts, at fair value 509,069 583,387
Total | Common stock | Oxy Stock Fund    
EBP, Master Trust [Line Items]    
Plan interest in master trust accounts, at fair value 509,069 583,387
Level 1 | Oxy Stock Fund    
EBP, Master Trust [Line Items]    
Plan interest in master trust accounts, at fair value 509,069 583,387
Level 1 | Common stock | Oxy Stock Fund    
EBP, Master Trust [Line Items]    
Plan interest in master trust accounts, at fair value 509,069 583,387
NAV | Short-term investment fund | Oxy Stock Fund    
EBP, Master Trust [Line Items]    
Plan interest in master trust accounts, at fair value $ 10,126 $ 12,014